INTERNATIONAL ISOTOPES INC.

(Exact name of registrant as specified in its charter)

(208) 524-5300

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Exchange Act: None.

Securities registered pursuant to Section 12(g) of the Exchange Act:

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COMMON STOCK, $.01 PAR VALUE

(Title of Class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  YES  o    NO  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  YES  o    NO  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  YES  x    NO  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  YES  x    NO  o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.  (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  YES  o    NO  x

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to be the average bid and asked price of such common equity at June 30, 2012 was $30,286,126.   For purposes of this calculation, all directors and executive officers of the registrant and holders of 5% or more of the registrant’s common stock are assumed to be affiliates.  This determination of affiliate status is not necessarily conclusive for any other purpose.

As of March 6, 2013, the number of shares outstanding of the registrant’s common stock, $.01 par value, was 360,432,335 shares.

Documents Incorporated by Reference

Certain information called for in Part III of this Annual Report on Form 10-K is incorporated by reference to the registrant’s definitive proxy statement for the 2013 annual meeting of shareholders, which will be filed with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year ended December 31, 2012.

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INTERNATIONAL ISOTOPES INC.

FORM 10-K

TABLE OF CONTENTS

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PART I

This Annual Report on Form 10-K (the “Annual Report”) contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (the “Act”).  This Act provides a "safe harbor" for forward-looking statements to encourage companies to provide prospective information about themselves so long as they identify these statements as forward-looking and provide meaningful cautionary statements identifying important factors that could cause actual results to differ from the projected results.  All statements, other than statements of historical fact, including statements regarding industry prospects and future results of operations or financial position, made in this Annual Report are forward looking. Words such as “anticipates,” “believes,” “should,”  “expects,” “future” and “intends” and similar expressions identify forward-looking statements.  In particular, statements regarding:  the commercial opportunity of the depleted uranium and fluorine extraction processing facility, the expected rate of capital expenditure on the depleted uranium project, the estimated capital required to support the planned timeline for the project, the planned start of uranium facility pre-licensing construction, the expected growth in various business segment revenues, our expansion into new markets, the ability of our products to compete with several larger companies and products, the results of market studies used to support our business model, our anticipated improvement in economic conditions, our ability to resume  cobalt-60 production and manage costs, and the sufficiency of our available cash and revenues from operations to meet our operating needs; are forward looking.  Forward-looking statements reflect management’s current expectations, plans or projections and are inherently uncertain.  Actual results could differ materially from management's expectations, plans or projections.  Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this report. Certain risks and uncertainties that could cause actual results to differ significantly from management’s expectations are described in the section entitled “Risk Factors” in this Annual Report. That section, along with other sections of this Annual Report, describes some, but not all, of the factors that could cause actual results to differ significantly from management’s expectations. We do not intend to publicly release any revisions to these forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. Readers are urged, however, to review the risks and other factors set forth in the other reports that we file from time to time with the Securities and Exchange Commission.

Item 1.  BUSINESS

General Business and Products Description

International Isotopes Inc. (the “Company”, “we”, “us” and “our”) was formed as a Texas corporation in 1995.  Our wholly-owned subsidiaries are International Isotopes Idaho Inc., a Texas corporation; International Isotopes Fluorine Products, Inc. an Idaho corporation; and International Isotopes Transportation Services, Inc., an Idaho corporation.  Our core business consists of six reportable segments which include: Nuclear Medicine Standards, Cobalt Products, Radiochemical Products, Fluorine Products, Radiological Services, and Transportation.

Beginning in 2004, we began a major undertaking to construct the first commercial uranium de-conversion facility in the U.S.  There are four reasons for our belief that this will provide an excellent commercial opportunity.  First, there is a significant effort underway by several companies with plans to construct new domestic uranium enrichment facilities in the U.S.  These facilities include AREVA Inc.’s (AREVA) planned Eagle Rock Facility in Idaho Falls, Idaho, URENCO USA’s (UUSA) (formerly known as Louisiana Energy Services or “LES”) Eunice New Mexico facility, United States Enrichment Corporation’s (USEC) American Centrifuge project in Piketon, Ohio, and GE-Hitachi’s use of a Silex laser separation technology in Wilmington, North Carolina.  We anticipate that the operation of one or more of these new commercial enrichment facilities could  produce more than  80 million pounds of depleted uranium hexafluoride (UF₆) annually by 2018, and all of that material must eventually be processed (or de-converted) for disposal.  Second, we entered into a contract with UUSA to provide de-conversion services, which obligates UUSA to pay us to provide de-conversion of depleted uranium amounting to at least 50% of our initial planned plant capacity.  Third, we hold the patents that give us exclusive rights for the Fluorine Extraction Process (FEP), a process that allows us to extract high-value, high-purity fluoride gases in conjunction with the uranium de-conversion process. And fourth, we believe that we will be able to obtain profitable sales agreements for the commercial sale of the various fluoride products we can produce from the planned de-conversion facility.

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We have made significant progress to continue to advance the uranium de-conversion project and our general business plan.  During 2012 we:

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Received a Part 40 combined construction and operating license for our planned depleted uranium de-conversion and fluorine extraction processing facility from the Nuclear Regulatory Commission (NRC);

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Received our air permit from the New Mexico Environment Department for the planned depleted uranium de-conversion and fluorine extraction processing facility.  The issuance of this permit completed the permitting actions required in New Mexico to allow the start of construction of our planned facility;

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Completed a $3 million private placement that further funded NRC licensing activities, and allowed us to make key investments in our core business segments in Idaho;

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Continued to pursue long-term sales agreements with customers for various fluoride products that will be manufactured by the planned depleted uranium processing facility;

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Completed significant manufacturing process improvements in our iodine-131 processes;

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Executed a contract to purchase an AOS Type B (U) transportation container; and

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Continued the formal design activities for the planned depleted uranium de-conversion facility project in New Mexico.

While our progress in 2012 was significant, a substantial amount of work and additional capital will be required in order to complete this facility.  The total estimated cost for the project is estimated to be approximately $125 million.  During 2012, we were able to raise approximately $3 million through the sale of convertible debentures and we spent approximately $1.5 million on the project.  During 2013, we intend to control the rate of capital expenditure on the project until project financing has been secured. There is no assurance that adequate financing for the project will be secured on terms acceptable to us, or at all.

As mentioned above, the NRC construction and operating license was issued for the facility in October 2012.  This is a forty (40) year operating license and is the first commercial license of this type issued in the U.S.  There are no other companies with a similar license application under review by the NRC.  Therefore, the NRC license represents a significant competitive barrier and we believe that it provides us with a very valuable asset.

While the commercial uranium de-conversion business represents a significant opportunity for us, that opportunity does not change our commitment to our current core business segments.  Over the course of the past several years, we have continued to invest in these segments and worked to reduce production costs and expand sales in each of them.  The following paragraphs provide a brief description of each of our business segments.  Certain financial information with respect to each of our business segments, including revenues from customers, a measure of profit or loss, and total assets, is set forth in Note 14 in the Notes to our Consolidated Financial Statements which begin on page F-6.

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Nuclear Medicine Standards

This segment consists of the manufacture of sources and standards associated with SPECT (Single Photon Emission Computed Tomography), patient positioning, and calibration or operational testing of dose measuring equipment for the nuclear pharmacy industry. These items include flood sources, dose calibrators, rod sources, flexible and rigid rulers, spot markers, pen point markers, and a host of specialty design items.  We manufacture these products for RadQual, LLC, through an exclusive manufacturing agreement. The agreement provides that we will manufacture sources exclusively for RadQual, LLC and will not manufacture products that would directly compete with RadQual, LLC sources. The agreement also states that RadQual, LLC will only procure sources manufactured by us for distribution to RadQual, LLC customers. Should this agreement with RadQual, LLC terminate, we are precluded from competing with RadQual, LLC in the nuclear medicine market. For this reason, we have worked to expand revenues from other segments to decrease our risk of dependency on one specific customer. The initial term of the agreement with RadQual, LLC expired on December 31, 2008, but automatically renews each January 1^st thereafter unless otherwise terminated by either party with 60 days written notice. In 2007 and 2008, we acquired 24.5% of RadQual, LLC.

There are over 5,000 nuclear medicine centers in the U.S. that require these types of products on a regular repeat basis.  We have been manufacturing these products for RadQual, LLC since 2001. The majority of these sales are to U.S. customers; however, recent years have seen an increase in foreign sales of many products. All of these products contain radioactive isotopes that decay at a predictable rate. Therefore, customers are required to periodically replace most of these products when they reach the end of their useful lives. Useful life varies from isotope to isotope and product to product but in most cases averages 18 months to two years. The isotopes used in manufacturing these nuclear medicine products are available from various sources world-wide.  In addition to the products themselves, we have developed a complete line of specialty packaging for the safe transport and handling of these products.

RadQual, LLC has numerous distributors for direct sales of its products. The largest distributor was Technology Imaging Services Inc. (TIS). In December 2010, we formed a 50/50 joint venture with RadQual, LLC to acquire the assets of TIS and to use those assets to create TI Services, LLC.  We intended that this joint venture would provide growth opportunities in existing and future RadQual, LLC product lines both domestically and internationally.  In both 2011 and 2012, however, TI Services, LLC experienced net losses due to reduced margins on certain non-nuclear medicine related products.  During 2012, we’ve worked to stem these losses and will continue those efforts in 2013.  We believe that we can expand sales opportunities for TI Services, LLC, by continuing to work closely with RadQual, LLC in developing new products that can be added to our contract manufacturing role with RadQual, LLC, and that would, in turn, expand sales opportunities for TI Services, LLC.

Cobalt Products

This segment includes the production of bulk cobalt (cobalt-60), fabrication of cobalt capsules for teletherapy or irradiation devices, and recycling of expended cobalt sources. The sale of bulk cobalt has typically accounted for a large percentage of the total revenue from this business segment and because those sales run in non-annual cycles there are large variations in revenues for bulk sales in period-to-period comparisons.

The year-over-year demand for cobalt has continued to increase as a result of the introduction of several new types of cobalt therapy units and we have continued to see robust growth in the demand for cobalt manufactured products for those devices. We continue to explore opportunities to further develop our Cobalt Product sales opportunities through increased production of finished source products.  The production, use, transport, and import/export of these products are all heavily regulated, but we have developed an experienced staff of technicians, drivers, and supervisors to comply with the regulations and support cost effective and timely delivery of these products.  One reason for our establishing our Transportation segment was in support of the delivery of cobalt products.

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At the present time the production of cobalt is dependent upon the U.S. Department of Energy (DOE) and its prime operating contractor, which controls the Advanced Test Reactor (ATR) operations and, therefore, controls the continued production of cobalt in the government funded ATR.  We have previously reported that in December 2011 we were forced into a new contract arrangement through the DOE Office of Science National Isotope Development Center (NIDC).  As expected, this change in contract approach by the DOE resulted in a significant increase in costs and impacted communication and coordination on production issues to the point of reducing our cobalt product sales.  Furthermore, in June 2012, a leak of a cobalt target belonging to another commercial business resulted in the curtailment of all further cobalt handling and production activities at the ATR pending completion of several corrective actions.  The investigation into the leaking cobalt target identified three areas that needed corrective action.  Those areas were; (1) changes to cobalt target handling controls, (2) concerns with continued irradiation of in-process targets, and (3) enhancing the design of future cobalt targets.   We are in the process of completing corrective actions for target handling and enhanced target design, and anticipate resuming the handling of cobalt targets in mid-2013.  We also anticipate completing a new cobalt target design that will be used in the ATR and allow resumption of irradiation later in 2013. However, it is not certain that the INL contractor will permit continued irradiation of the in-process cobalt targets currently stored at the reactor site.  We are still discussing this issue with the Idaho National Laboratory (INL) contractor; however, if we are not able to resume irradiation of these targets, we would be forced to write down the value of the inventory costs assigned to this material (currently valued at approximately $830,000) and sell or salvage these targets.  Because cobalt takes approximately three years to produce, not being able to continue irradiation of these targets would cause about a three year gap in new cobalt production. To mitigate the impact of these delays and interruptions to our cobalt production activities caused by the NIDC and the cobalt target failure, we are investigating alternate sources of cobalt supply, evaluating possible sales of lower activity cobalt already in process, and identifying additional reactors for cobalt irradiation.

Radiochemical Products

This segment includes production and distribution of various isotopically pure radiochemicals for medical, industrial, or research applications.  These products are either directly produced by us or are purchased in bulk from other producers and distributed by us in customized packages and chemical forms tailored to meet customer requirements. Iodine-131 radiochemical by far accounts for the largest portion of revenue within this segment.  The iodine-131 is supplied through an agreement with NTP Radioisotopes (Pty) Ltd. (NTP) in South Africa and is imported as a radiochemical intended for medical applications. Although there are other manufacturers of iodine-131, in August 2010, we entered into a three-year agreement with NTP for the supply of iodine-131 that allows us to purchase iodine at a mutually agreeable pre-determined price.  Either party may terminate the agreement by giving three months’ notice prior to the expiration of the term.

Generally, iodine-131 is used in the treatment and diagnosis of various diseases of the thyroid gland such as Graves’s disease, thyroid cancer and hyperthyroidism.  There are also several investigational and clinical trials underway to explore the use of iodine-131 for such things as the treatment of breast, lung, prostate, and ovarian cancers.  Other less significant sales of radiochemical in this segment consist of sales of isotopes such as Cobalt-57 (Co-57), Cesium-137 (Cs-137), Sodium-22 (Na-22), and Barium-133 (Ba-133).

Fluorine Products

We established the fluorine products business segment in 2004 to support production and sale of the gases produced using our Fluorine Extraction Process (FEP).  The FEP is a process that produces ultra-high purity fluoride gas products through a solid to solid reaction between depleted uranium tetrafluoride (DUF4) and various solid metal oxides such as silicon. High purity fluoride gases are in ever-increasing demand for processes such as ion-implantation and chemical vapor deposition and also for the manufacture of organic complexes used in a host of industrial applications and manufacturing processes.  The FEP products have very high purity, which makes them ideally suited to these specialty applications.

We acquired seven patents for the FEP in January 2004 and built a pilot production facility in which began operation in 2006.  In 2010, we were granted an additional process patent on FEP based upon information gained through the operation of the pilot facility.  During 2012, our Idaho FEP pilot facility was not used for commercial gas production but instead focused upon production of high purity products and examined methods of scaling up the size of the production operations in support of the new FEP facility in New Mexico.  By the end of 2012, we completed our testing of individual components and analytical processes and have begun a shutdown of the pilot plant operations.

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Radiological Services

This segment includes a wide variety of miscellaneous services, the largest of which is processing gemstones that have undergone irradiation for color enhancement.  In May 2004, we entered into an exclusive contract with Quali-Tech, Inc., for gemstone processing and this contract accounts for the majority of our sales in this segment. In May 2012, we modified and renewed the contract, which remains in effect until either party gives a minimum of six months’ notice to the other that it does not intend to continue the contract.  The contract provides that we shall act as the exclusive processor of gemstones for Quali-Tech, Inc., for the term of the contract and two years beyond.  In 2012, we obtained a license amendment from the NRC to include certain field service activities.  Beginning in 2013, we expect these field services to become a primary source of revenue within this segment.

Transportation

This segment was established in 2006 through our subsidiary, International Isotopes Transportation Services (IITS).  IITS was established to provide transportation of our products (such as cobalt sources) and to offer “for hire” transportation services of hazardous and non-hazardous cargo materials.  A major factor in our determination to establish this subsidiary and business segment was the many regulations involving the security and tracking of shipments of cobalt.  IITS provides us with considerable savings for the transportation of our own products and produces a small revenue stream by providing transportation of products for other companies. It is anticipated that this segment will also provide some of the transportation services for our planned depleted uranium de-conversion facility in New Mexico.

Industry Overview, Target Markets, and Competition

The industries and markets that require or involve the use of radioactive material are diverse.  Our current core business operations involve products that are used in a wide variety of applications and in various markets.  The following provides an explanation of the markets and competitive factors affecting our current business segments.

Nuclear Medicine Standards

Calibration and Reference Standards are required for the daily operational checks and calibration of the measurement of SPECT imaging devices frequently used in nuclear medicine.  Calibration and quality assurance testing is required as a routine part of the normal operations of this equipment to ensure its reliability and accuracy.  We exclusively manufacture many of these products for RadQual, LLC, which in turn has several distributors who make direct sales around the U.S. We directly ship these products to all 50 states and several overseas locations. There is only one other producer of these products in the world that directly competes with us for these products. Most of the products manufactured by our competitor are similar in design to our products because all must meet Original Equipment Manufacturer (OEM) dimensional and performance standards.  However, we attempt to differentiate our products from our competitor’s products through increased levels of quality control and customer service. We also received ISO-9000 and ISO-13485 quality program certifications in 2011 that has allowed us to start selling these products into several foreign countries that require this additional quality certification for manufacturers.

In December 2010, we formed TI Services, LLC, a joint venture with RadQual, LLC, which is expected to continue as a major distributor of products in the field of nuclear medicine and nuclear cardiology.  TI Services, LLC experienced net losses in 2011 and in 2012.  However, we believe that by implementing some price changes, cost control measures, new product development, and by further expanding into foreign markets, we may be able to improve our performance in this segment in 2013.

Cobalt Products

We sell high activity bulk cobalt to a customer that uses it to fabricate several models of sealed sources for medical and industrial applications.  We also manufacture a wide range of sealed source products utilizing our cobalt.  These products include applications such as radiation therapy, security examination, and blood sterilization.  While there are other technologies available to provide external radiation therapy, there are several state of the art devices that use multiple cobalt sources in a highly focused manner for several specialized treatment methods.  There are currently no other producers of cobalt in the U.S. However, there are at least three significant producers in other parts of the world.  There is only one other company in the U.S. currently licensed to handle large quantities of cobalt.

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In addition to manufacturing cobalt sources, we recycle used cobalt sources by recovering the cobalt for re-use in the manufacture of new sealed sources for teletherapy devices, irradiators, and other source applications.  We are the only company in the U.S. that provides this unique service.   There has been a significant increase in regulation by the NRC in recent years that has created a significant barrier to any new entrants to this market.   Growth in the demand for cobalt in several of the newer applications, coupled with an expected decline in reactors around the world that are capable of producing this type of high activity material is expected to significantly increase the demand for our cobalt products in the next 5 years.  Nonetheless, we are at present dependent upon our contract relationship with the DOE for access to its ATR in Idaho for continued cobalt production.  The interruption to cobalt production experienced in 2012 has significantly impacted our cobalt products business segment.  This impact will continue to be felt in 2013 because of the slow resumption in production activities and could continue to be felt through 2016 depending upon our ability to resume irradiation of the in-process cobalt targets or locate alternative sources of supply.

Radiochemical Products

We typically supply radioisotope products in bulk form.  The markets for most radiochemicals are highly competitive.  The target markets for these products are customers who (1) incorporate them into finished industrial or medical devices;  (2) use radioisotope products in clinical trials for various medical applications; or (3) further process and include the radioisotope products into a pharmaceutical product for FDA approved therapy or imaging.  We are the only U.S. company that supplies iodine-131 radiochemical directly to radiopharmacies.  Our radiochemical sales compete directly against not only other radiochemical suppliers but also against pharmaceutical grade kits and products that are mass produced by Food and Drug Administration (FDA) approved pharmaceutical manufacturers.  Continuation of business in this segment is highly dependent upon maintaining low cost.  During 2011 and 2012, there was some consolidation of pharmacy chains, and corporate decisions made, in regard to purchasing radiochemical, as opposed to finished pharmaceutical products.    Those changes resulted in a significant decline in our sales within this business segment in 2011 and continued with a lesser decline in 2012.  We believe that the completion of significant improvements to radiochemical processing and greater market stability will reverse this trend and help us realize improved sales in 2013 and beyond.

Fluorine Products

We are developing our fluorine products segment in conjunction with uranium de-conversion in order to take advantage of the anticipated need for depleted uranium de-conversion services.  Our FEP patents provide a unique opportunity to provide certain high purity fluoride compounds while also offering a “for fee” de-conversion service to the uranium enrichment industry.  We believe the results of our marketing study and discussions with prospective customers support the business model we seek to pursue and adequately justify the financial investment in this uranium de-conversion project.  During 2012, our existing Idaho FEP pilot facility was used for completion of testing certain process parameters and demonstrating the purity of the FEP products.  With testing now complete we plan to terminate further activity at the FEP pilot facility.  Therefore, the fluorine products segment is not projected to generate any revenue in 2013.

Radiological Services

Most of our radiological services are performed in support of gemstone processing for Quali-Tech, Inc.  There are very few companies in the U.S. that possess the mix of qualifications and licensing necessary to provide this type of service.  In the U.S., for example, there is only a single reactor capable of providing irradiation services for gemstone processing.  On a global scale, however, the gemstone industry is a highly competitive industry and there are several alternatives to irradiation treatment.  There are also other reactors located outside the U.S. that offer irradiation service.  In the current economic market, sales of luxury items such as jewelry have declined significantly.  As a result of these market factors, revenue from this segment fell far below historic levels and only recovered to a limited extent in 2012.  We are seeing signs of improved volumes of material shipped to us for processing and expect revenue within this segment to return to historic levels in 2013.   In addition we have obtained an amendment to our NRC license to permit certain field service activities.  Beginning in 2013, we expect to see field service activities become the primary source of revenue within this segment.

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Transportation

IITS was formed in order to support transportation of our own products and to provide “for hire” transportation services.  IITS specializes in the transportation of hazardous, radioactive materials including large quantity cobalt shipments.  These types of shipments face a significant amount of increased new regulation and enhanced security requirements and IITS is well suited to meeting these requirements while significantly reducing the costs of transport to us.   IITS has specially trained drivers and specially equipped vehicles intended to meet the new standards for transportation of large cobalt shipments. Therefore, IITS is capable of providing unique transportation services that we believe only one or two other commercial carriers in the U.S. can also provide.  The primary purpose of this segment is to support the sale and delivery of our cobalt products.  We believe that the increase in sales expected for cobalt products in 2013 will result in a corresponding increase in transportation services revenue.

Government Regulation

Licensing

We have obtained two broad scope materials licenses from the NRC that permit use and possession of by-product material, as well as licenses that permit the exempt distribution of irradiated gemstones, import and export of certain radioactive materials, and our Type B shipments of radioactive materials.  One broad scope material license covers calibration and reference standard manufacturing and distribution, radioisotope processing and distribution, large scale cobalt processing and recycle operations, radioactive gemstone processing, environmental sample analysis, certain field service activities, and research and development.  The second broad scope materials license specifically covers FEP production and our subsidiary, International Isotopes Fluorine Products Inc.  This license is specific to the handling of fairly large quantities of depleted uranium in various chemical forms.  The exempt distribution license permits the direct release of irradiated gemstones into the U.S. without export. All of our existing licenses and permits are adequate to allow current business operations.  As a condition of our NRC licenses in Idaho, we are required to provide financial assurance for decommissioning activities.  We currently fulfill this license requirement with an irrevocable letter of credit which names the NRC as beneficiary and which is supported with restricted certificates of deposit in an amount equaling our estimated decommissioning and disposal costs for our facilities.  We do not handle “special nuclear materials” (i.e. nuclear fuels and weapons grade uranium, thorium or plutonium); therefore, our facility is not designated as a “nuclear” facility that would require additional licensing.

In October 2012, we were granted a Part 40 construction and operating license by the NRC for the proposed depleted uranium de-conversion and FEP production facility.  The facility, which is to be located in Lea County, New Mexico, is proposed to initially de-convert up to approximately 11 million pounds of depleted uranium hexafluoride (DUF₆) annually into fluoride products and depleted uranium oxides (DUO).  The timing of construction and operating activity, however, is limited at present by our  available capital resources.

Regulation of Radioisotope Production Waste

All of our manufacturing processes generate some radioactive waste.  We must handle this waste pursuant to the Low Level Radioactive Waste Policy Act of 1980, which requires the safe disposal of mildly radioactive materials.   The estimated costs for storage and disposal of these materials have been included in the manufacturing and sales price of our products.  However, actual disposal costs are subject to change at the discretion of the disposal site and are ultimately applied at the time of disposal.  We have obtained all necessary permits and approvals for the disposal of our waste materials and we do not anticipate any negative changes in capacity or regulatory conditions that would limit or restrict our waste disposal capabilities.

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Other Regulations

We are registered as a medical device manufacturer through the FDA for several of our nuclear medicine reference and calibration standards. We are registered with the U.S. Department of Transportation for the shipment of radioactive materials. We also have an NRC license for the import and export of radioactive materials.  Because of increasing security controls and regulations, it is likely that we may encounter additional regulations affecting transportation, storage, sale, and import/export of radioactive materials.  We were inspected by the FDA in 2011 for our repackaging of iodine-131.  During this inspection, the FDA determined that we were being considered as a “Drug Manufacturer” and we were subsequently issued a Warning Letter for violations of Current Good Manufacturing Practices (CGMP), a requirement for Drug Manufacturers.  We have responded to this FDA Warning Letter and have corrected all CGMP violations.

Employees

As of December 31, 2012, we had 23 full-time employees.

Distribution Methods for Products

We sell our products directly to our customers who, in some cases, are both end users and distributors.  We use common commercial carriers and our own IITS subsidiary for delivery of our products.  For smaller quantities of material, and overnight and next day delivery, we utilize other commercial carriers.  For our products that involve large quantities of radioactive material, most commonly cobalt-60, that invoke certain special transportation requirements, we use our IITS transportation subsidiary.  The creation of the IITS subsidiary has produced additional revenue in “for-hire” operations and decreased costs by transporting our own products more cost effectively than other commercial carriers.

Dependence on Customers

During 2012, one major customer, RadQual, LLC, (RadQual) accounted for 45% of our total gross revenue. This total includes both sales under an exclusive sales agreement with RadQual and its sales as a distributor of our products and also includes sales reported by TI Services, LLC our joint venture with this customer.  We do not believe we are dependent upon the sales this customer makes as a distributor because we have the option of terminating the distributor relationship and assuming direct sales of the product.  Sales under exclusive contract with this customer represent, 20%, and 21% of our total gross revenues for the years ended December 31, 2012 and 2011, respectively. Combined sales, on which we are dependent, to our three largest customers, including TI Services, LLC sales, accounted for 48% of our total gross revenues in 2011 and accounted for 56% of our total gross revenues. We are making efforts to reduce our dependency on a small number of customers by expanding sales in both domestic and foreign markets and through our establishment of the joint venture, TI Services, LLC to expand distribution of products.  We have also put in place an additional sales agreement with one customer that we expect will expand the sale of cobalt products and create the additional opportunity for revenue from new radiological services.

Patents, Trademarks, Licenses and Royalty Agreements

In 2004, we obtained certain patents related to the FEP.  In July 2010, we were granted a new patent on the FEP process and we are currently seeking international protection on this intellectual property.  These patents will be important to our future plans to build upon FEP production capacity including our planned construction of the first commercial depleted uranium de-conversion and fluorine extraction facility in the U.S.  We believe this will provide a commercial opportunity because there are several companies constructing, or planning to construct, new uranium enrichment facilities in the U.S.

Research and Development

We had research and development expenses totaling $990,021 in 2012, compared with $1,695,315 in 2011.  These expenses were primarily associated with engineering, design, production testing, and licensing activities for our planned depleted uranium de-conversion and FEP facility.

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In years prior to 2011, we expensed all costs related to the continued development of the uranium de-conversion facility project as research and development expenses.  These expenses included all Idaho FEP facility operations as well as facility design, product market development, and NRC license application review costs.  During 2011, when it was determined by management that the project had progressed to a point where it was considered very likely that the NRC license for the de-conversion facility would be issued in 2012, these research and development costs were capitalized.  During 2012, all such expenses were capitalized and we will continue to capitalize these expenses in the future.

We expect to continue to expend significant resources on this project for several years as the project total cost is expected to be approximately $125 million over the course of the next several years.

Available Information

Our internet website address is http://www.internationalisotopes.com.  Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act are available free of charge through our website as soon as reasonably practicable after they are electronically filed with, or furnished to, the Securities and Exchange Commission.  Information on our website is not incorporated by reference into this report or other reports filed with the Securities and Exchange Commission.

Item 1A.   RISK FACTORS

Readers should carefully consider the following factors that may affect our business, future operating results and financial condition, as well as other information included in this Annual Report. The risks and uncertainties described below are not the only ones the company faces. Additional risks and uncertainties not presently known to us or that we currently deem immaterial also may impair our business operations. If any of the following risks actually occur, our business, financial condition and operating results could be materially adversely affected.

Risks Related to Our Proposed De-Conversion and FEP Produced Fluoride Gas Business

We will need to raise additional funds to complete the construction of our de-conversion and FEP facility.  We need to raise approximately $125 million additional funds to complete the design, and construction of a de-conversion facility with a production scale FEP operation.  We may not be able to raise the additional capital required to complete the facility on acceptable terms, or at all.  In addition, the total funds required to complete this project have been based upon early preliminary estimates and, while we believe these estimates are conservative, there can be no assurance that unforeseen expense will not be incurred and additional funding required to complete the project.

We do not have an operating history with respect to our strategy to combine de-conversion services and FEP produced fluoride gas products and this business may not succeed. We have no operating results with respect to providing de-conversion services or producing high volumes of fluoride gas products using FEP to date and, therefore, we do not have an operating history upon which you can evaluate this business or our prospects. Our prospects must be considered in light of the risks and uncertainties encountered in entering a new line of business. Some of these risks relate to our potential inability to:

•  Construct our planned de-conversion and FEP production plant, including the effective management of the cost of the design and construction of the facility, and obtain the additional financing necessary for such construction;

•  Obtain the necessary regulatory approvals for the facility and the ongoing operations of the facility;

•  Produce commercially economic volumes of high purity fluoride gas using FEP;

•  Effectively manage this new business and its operations;

•  Successfully establish and maintain our intended low-cost structure;

•  Successfully obtain disposal services for our depleted uranium waste stream; and

•  Successfully address the other risks described throughout this annual report on Form 10-K.

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If we cannot successfully manage these risks, our business and results of operations and financial condition will suffer.

The market for our de-conversion services may be adversely affected if planned enrichment facilities that would create by-products suitable for our de-conversion services are not completed.   We plan to build a de-conversion and FEP production plant, in part, to process the anticipated UF₆ by-product from certain enrichment facilities being planned by several companies, including USEC, AREVA and GE-Hitachi Nuclear Energy's Global Laser Enrichment.  While we have an agreement in place with UUSA and that facility is in operation, additional contracts will be required to utilize the full capacity of our planned facility.  If none of the other anticipated enrichment facilities are completed, we may not have sufficient demand for our de-conversion services to realize the expected economic benefit from our planned de-conversion and FEP production plant.

We currently have only one contract to provide de-conversion services to an enrichment firm.   We currently have only one effective de-conversion services agreement with UUSA. The agreement is conditional upon, among other things, each party obtaining necessary third party and government approvals, UUSA obtaining the approval of the NRC to the amendment of a provision in its materials license that prohibits shipments of depleted uranium to de-conversion facilities employing anhydrous hydrofluoric acid in the de-conversion process, and our meeting certain performance milestones in the construction and start-up of the planned facility. The initial term of the agreement extends for a period sufficient to cover five years of de-conversion services once our planned uranium de-conversion facility is operational, based on operations starting no later than January 1, 2014. Because the start of construction of the project has been delayed this date is no longer realistic and that will require us to renegotiate this term of the contract with URENCO.  If we cannot demonstrate certain production capacities in accordance with the agreement, UUSA has the option to terminate the agreement and we would have no opportunity to cure pursuant to the terms of the agreement.

There is no history of large-scale commercial fluoride gas production utilizing FEP.   We have successfully demonstrated the feasibility of using FEP to produce some fluoride gases and Starmet Corporation (Starmet) that originally developed and patented the technology, also used FEP to produce a fluoride gas. However, FEP has not been used for large-scale commercial production of the size and magnitude envisioned in conjunction with the de-conversion process and there may be technical issues and process challenges related to the utilization of FEP for large-scale commercial production. Unforeseen issues associated with constructing and scaling up these new FEP operations could significantly impact our proposed schedule and our overall ability to produce high-purity fluoride gas in the quantities anticipated.

Prior to the start of operations of the facility, we must obtain a Ground Water Permit from the State of New Mexico, and we cannot guarantee the amount of time required to obtain this permit from the State of New Mexico for operation of these facilities.    The operation of the planned depleted uranium de-conversion facility requires a ground water permit from the State of New Mexico.  There is no assurance that the ground water permit will be issued to us by the State of New Mexico.  We also have no control over the actual time required by the State of New Mexico to review and approve the application for the ground water permit.  Failure to obtain the permit, or any delay in obtaining the permit, could delay the construction of our planned depleted uranium de-conversion facility, and therefore, delay revenue generating operations at the facility.

The DOE is obligated to take depleted uranium from enrichment companies.   The DOE has constructed two depleted uranium de-conversion facilities. These facilities will be obligated to process depleted uranium produced from United States commercial uranium enrichment facilities. We cannot assure you that enrichment companies will not select the DOE as their de-conversion service provider. If we are unable to meet the milestones required by our de-conversion services agreement with UUSA and it terminates that agreement, and other enrichment companies select the DOE as their de-conversion services provider, we will not be able to realize the expected economic benefit from our planned de-conversion and FEP production plant.

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We will be handling large quantities of depleted UF₆ and fluoride gases, which are radioactive and hazardous materials respectively, and are subject to intense regulation.   The hazardous nature of depleted UF₆ and fluoride gases affects the actions we are required to take for licensing, air permitting, environmental review, emergency response, liability insurance, personnel training, and generally increases the level of concern by the general public with respect to our handling of these materials. All of these factors complicate the licensing and operations processes and involve a host of additional regulatory factors that could affect the timeline for completing our de-conversion and FEP facility and cost estimates, and involve political pressures that could negatively influence operations. Additionally, the NRC is revising its regulations on the disposal of depleted uranium waste at Low Level Radioactive Waste (LLRW) disposal facilities that accept substantial quantities of depleted uranium. Any changes to the current regulations may result in increased disposal costs that we intend to pass through to our customers, which, depending on the significance of the increased cost, may cause potential customers to continue to store their depleted UF ₆ rather than pay for de-conversion and disposal services.

We will be subject to competition from the DOE and other companies.   While there are no currently operating commercial depleted UF₆ de-conversion facilities in the United States, the DOE is starting up two de-conversion plants intended to process depleted UF ₆ from the DOE’s existing 1.5 billion pound stockpile.  Additionally, AREVA currently operates a de-conversion plant in France, URENCO plans to construct a facility in the U.K., and Rosatom has constructed a facility in Russia. We cannot assure you that the existing UF ₆ de-conversion facilities will not build additional facilities to expand their operations and compete with us in providing de-conversion services or that commercial enrichment companies will not choose to ship their depleted UF ₆ overseas for processing in France, the U.K., or Russia.

We currently hold conditional title to the property in Lea County, New Mexico where the proposed plant is to be constructed.  The property location for our planned facility is located in Lea County, New Mexico.  Lea County, New Mexico has transferred the property to us under the provisions of the New Mexico Local Economic Development Act, Project Participation Agreement.  We are obligated to meet certain performance objectives; namely starting Phase 1 construction no later than December 31, 2014, and completing Phase 1 and hiring at least 75 employees by December 31, 2015, in order to retain title to the property. If we do not retain title to the property, it will have a material adverse impact on our planned de-conversion and FEP project.

After completing Phase I of our planned de-conversion and FEP production facility, we may not have sufficient earnings to complete additional planned phases of the facility.   We plan to integrate the de-conversion of depleted UF₆ with FEP in multiple phases. After funding Phase I, we plan to fund additional phases through earnings. If we do not realize the earnings necessary to fund these additional phases, we may need to find other sources of capital. We cannot assure you that we will be able to raise the additional capital required to complete these phases on acceptable terms, or at all. In addition, the total funds required to complete these phases have been based upon early preliminary estimates and there can be no assurance that unforeseen expenses will not be incurred and additional funding required to complete these phases will be obtained.

Our business may be harmed if we fail to protect our proprietary FEP technology utilized in our planned de-conversion and FEP production facility.   We rely on patents to protect our intellectual property rights to the FEP technology to be used in our planned de-conversion and FEP production plant. Although we have filed international Patent Cooperation Treaty (PCT) applications to seek international protection for the FEP process in certain countries, we cannot be certain that our competitors may be able to design around our patents and that the laws of some countries in which our FEP patents are or may be practiced may not protect our products or intellectual property rights to the same extent as do the laws of the United States, increasing the possibility of piracy of our patents. Although we intend to vigorously defend our intellectual property rights, we may not be able to prevent misappropriation of our FEP technology. Our competitors may also independently develop technologies that are substantially equivalent or superior to our technology.

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Risks Related To Our Current Business Operations

We are dependent on various third parties in connection with our business operations.  The production of high specific activity cobalt is dependent upon the DOE, and its prime-operating contractor, which controls the Idaho reactor. Current activity at the Idaho reactor may continue to affect the supply of cobalt material needed for the manufacture of cobalt sources. Loss of the ability to use, or cost effectively use, these irradiation services would significantly impact our cobalt products business segment because there is not currently another reactor available in the United States that is capable of providing this type of service for us. Our nuclear medicine calibration and reference standard  manufacturing is conducted under an exclusive contract with RadQual, LLC, which in turn has agreements in place with several companies for marketing and sales.  Our radiochemical iodine is supplied through a contract with a single supply source. Unanticipated contract terminations by any of these suppliers and other third parties can have a material adverse impact on operations, financial results, and cash flow.

We are dependent on a limited number of customers in connection with our current business operations.  During 2012, sales to one major customer accounted for 45% of our total gross revenue. Sales under exclusive contract with this customer represented 20% and 21% of our total gross revenues for the years ended December 31, 2012, and 2011, respectively. Combined sales to our three largest customers accounted for 48% of our total gross revenues during 2012. Combined sales to these three customers accounted for 56% of gross revenue in 2011. Although we are making efforts to reduce our dependency on a small number of customers, the loss of any one of these significant customers could have a significant impact on our future results of operations and financial condition. Unanticipated contract terminations by any of these current customers could have a material adverse impact on operations, financial results, and cash flow.

We are subject to competition from other companies.   Each of our existing business areas has direct competition from other businesses. High specific activity cobalt is supplied by other reactor facilities around the world. Nuclear medicine calibration and reference standards are being produced by one other major manufacturer in the United States. Most of our radiochemicals are also manufactured by several other companies in the world, and there are other suppliers of high-purity fluoride products. Each of our competitors has significantly greater financial resources that could give them competitive advantage over us.

Risks Related To Our Company Generally

We have incurred and may continue to incur losses.   With the exception of 2002, we have incurred net losses for most fiscal periods since our inception. From inception through December 31, 2012, we have generated $69,227,735 in revenues and accumulated deficit (including preferred stock dividends and returns) in the amount of $114,235,302. The negative cash flow we have sustained has materially reduced our working capital, which in turn, could materially and negatively impact our ability to fund future operations and continue to operate as a going concern. Management has and continues to take actions to improve our results. The availability of necessary working capital, however, is subject to many factors beyond our control, including our ability to obtain favorable financing, economic cycles, market acceptance of our products, competitors' responses to our products, the intensity of competition in our markets, and the level of demand for our products.

Our operations expose us to the risk of material environmental liabilities.   We are subject to potentially material liabilities related to the remediation of environmental hazards and to personal injuries or property damages that may be caused by hazardous substance releases and exposures. The materials used in our operations subject us to risks of environmental contamination that subject us to liability, including remediation obligations that could be very costly. In addition, the discovery of previously unknown contamination could require us to incur costs in the future that would have a negative effect on our financial condition or results of operations. A surety bond has been used to provide the financial assurance required by the NRC for our Idaho facility license for decommissioning upon termination of operations and a similar mechanism will be required to fund the decommissioning of the new facility. However, if a contamination event from the spread of uranium occurs within, or outside, of our facility, we would be financially responsible to remediate such spills and could have to borrow money or fund the remediation liability from our future revenue. We may not be able to borrow the funds, or have available revenue, sufficient to meet this potential liability, which could have a significant negative impact on our results of operations.

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We are dependent upon key personnel.   Our ongoing operations are dependent on Steve T. Laflin, President and Chief Executive Officer. The loss of Mr. Laflin could have a material adverse effect on our business. We have a $2 million key man life insurance policy on Mr. Laflin and an employment agreement that extends through February 28, 2017. There is no assurance that we will be able to retain Mr. Laflin or our existing personnel or attract additional qualified employees. The loss of any of our key personnel or an inability to attract additional qualified employees could result in a significant decline in revenue.

General economic conditions in markets in which we do business can impact the demand for our goods and services. Decreased demand for our products and services can have a negative impact on our financial performance and cash flow.   Demand for our products and services, in part, depends on the general economic conditions affecting the countries and industries in which we do business. A downturn in economic conditions in a country or industry that we serve may negatively impact demand for our products and services, in turn negatively impacting our operations and financial results. Further, changes in demand for our products and services can magnify the impact of economic cycles on our businesses. For instance, our topaz gemstone processing is affected by the demand for luxury items such as jewelry as well as by the instability of foreign markets which are key in the manufacture of products using irradiated gemstones.

Volatility in raw material and energy costs, interruption in ordinary sources of supply and an inability to recover unanticipated increases in energy and raw material costs from customers could result in lost sales or significantly increase the cost of doing business.   Market and economic conditions affecting the costs of raw materials, utilities, energy costs, and infrastructure required to provide for the delivery of our goods and services are beyond our control and any disruption or halt in supplies, or rapid escalations in costs could affect our ability to manufacture products or to competitively price our products in the marketplace.  For instance, an interruption in the supply of isotopes such as cobalt -57, cobalt-60, or iodine -131 could result in lost sales of nuclear medicine and calibration standards sales and radiochemical products.

We are subject to extensive government regulation in jurisdictions around the globe in which we do business. Regulations address, among other things, environmental compliance, import/export restrictions, healthcare services, taxes and financial reporting, and can significantly increase the cost of doing business, which in turn can negatively impact our operations, financial results and cash flow.   We are subject to government regulation and intervention both in the United States and in all foreign jurisdictions in which we conduct business. Compliance with applicable laws and regulations results in higher capital expenditures and operating costs and changes to current regulations with which we must comply can necessitate further capital expenditures and increases in operating costs to enable continued compliance. Additionally, from time to time, we may be involved in legal or administrative proceedings under certain of these laws and regulations. Significant areas of regulation and intervention include the following:

Radioactive Waste.   All of our manufacturing processes generate some radioactive waste. We must handle this waste pursuant to the Low Level Radioactive Waste Policy Act of 1980, which requires the safe disposal of mildly radioactive materials. The estimated costs for storage and disposal of these materials have been included in the manufacturing and sales price of our products. However, actual disposal costs are subject to change at the discretion of the disposal site and are ultimately applied at the time of disposal. The NRC is revising its regulations on the disposal of depleted uranium waste at LLRW disposal facilities that accept substantial quantities of depleted uranium. If commercial LLRW disposal facilities are not readily available to us, we may not be able to provide the de-conversion services at the level assumed by our business model.

Health Compliance.  Health regulations, dictated by the United States Occupational Safety and Health Administration and NRC are extensive in our business. There is no assurance that our activities will not at times result in liability under health regulations. Costs and expenses resulting from such liability may materially negatively impact our operations and financial condition. Overall, health laws and regulations will continue to affect our business worldwide.

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Environmental Regulation.  We are subject to various federal, state, local and foreign government requirements regulating the discharge of materials into the environment or otherwise relating to the protection of the environment. These laws and regulations include, but are not limited to the Comprehensive Environmental Response, Compensation, and Liability Act, the Resource Conservation and Recovery Act and state statutes such as the Idaho Hazardous Waste Management Act, the Low Level Radioactive Waste Policy Act of 1980, NRC regulations concerning various irradiated, radioactive, and depleted uranium materials, and United States Department of Transportation regulations concerning shipment of radioactive materials. Certain of these laws and regulations can impose substantial fines and criminal sanctions for violations, and require installation of costly equipment or operational changes to limit emissions and/or decrease the likelihood of accidental hazardous substance releases. We incur, and expect to continue to incur capital and operating costs to comply with these laws and regulations. In addition, changes in laws, regulations and enforcement of policies, or the imposition of new clean-up requirements or remedial techniques could require us to incur costs in the future that would have a negative effect on our financial condition or results of operations.

Import/Export Regulation.  We are subject to significant regulatory oversight of our import and export operations due to the nature of our product offerings. Penalties for non-compliance can be significant and violations can result in adverse publicity.

Taxes.  We structure our operations to be tax efficient and to make use of tax credits and other incentives. Nevertheless, changes in tax laws, actual results of operations, final audit of tax returns by taxing authorities, and the timing and rate at which tax credits can be utilized can change the rate at which we are taxed, thereby affecting our financial results and cash flow.

Financial Accounting Standards.  Our financial results can be impacted by new or modified financial accounting standards.

We may incur material losses and costs as a result of product liability claims that may be brought against us.  We face an inherent business risk of exposure to product liability claims in the event that products supplied by us fail to perform as expected or such failures result, or are alleged to result, in bodily injury. Although we have purchased insurance with coverage and in amounts that we believe to be adequate and reasonable in light of our current and planned operations, including our new uranium de-conversion and fluoride gas production business, if a successful product liability claim if brought against us in excess of our available insurance coverage or established reserves, it would have a material adverse effect on our business and financial results.

We will need additional financing to continue operations.  Because we may continue to experience negative cash flow, we will need to obtain additional financing to continue operations. Management will continue to plan and take actions to improve our financial results which could enhance our ability to obtain debt financing.  However, obtaining additional financing is subject to many factors beyond our control and may not be available to us on acceptable terms or at all.

Our earnings, cash flow and financial position are exposed to financial market risks worldwide, including interest rates.   Fluctuations in domestic and world markets could adversely affect interest rates and impact our ability to obtain credit or attract investors. Such market risk could have a negative impact on future business opportunities including our ability to raise additional capital for planned business expansion.  We also purchase some of our radiochemical products from overseas suppliers and the price of those products could be adversely affected through changes in currency exchange rates.

Catastrophic events such as natural disasters, pandemics, war and acts of terrorism could disrupt our business or the business of our suppliers or customers, and any such disruptions could have a negative impact on our operations, financial results and cash flow.   Our operations are at all times subject to the occurrence of catastrophic events outside our control, ranging from severe weather conditions such as hurricanes, floods, earthquakes and storms, to health epidemics and pandemics, to acts of war and terrorism. Any such event could cause a serious business disruption that could affect our ability to produce and distribute our products and possibly expose us to third-party liability claims. Additionally, such events could impact our suppliers, in which event energy and raw materials may be unavailable to us, and our customers, who may be unable to purchase or accept our products and services. Any such occurrence could have a negative impact on our operations and financial condition.

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Our future growth is largely dependent upon our ability to develop new technologies that achieve market acceptance with acceptable margins.   Our businesses operate in global markets that are characterized by rapidly changing technologies and evolving industry standards. Accordingly, our future growth rate depends upon a number of factors, including our ability to (i) identify emerging technological trends in our target end-markets, (ii) develop and maintain competitive products, (iii) enhance our products by adding innovative features that differentiate our products from those of our competitors, and (iv) develop, manufacture, and bring products to market quickly and cost-effectively. Our ability to develop new products based on technological innovation can affect our competitive position and requires the investment of significant resources. These development efforts divert resources from other potential investments in our businesses, and they may not lead to the development of new technologies or products on a timely basis or that meet the needs of our customers as fully as competitive offerings. In addition, the markets for our products may not develop or grow as we currently anticipate. The failure of our technologies or products to gain market acceptance due to more attractive offerings by our competitors could significantly reduce our revenues and adversely affect our competitive standing and prospects.

Risks Related To Our Common Stock

Trading in our common stock is limited and the price of our common stock may be subject to substantial volatility.  Our common stock has historically been quoted on the OTC Bulletin Board® under the ticker symbol “INIS.OB.” The market for our securities is limited, the price of our stock is volatile, and the risk to investors in our common stock is greater than the risk associated with stock trading on other markets. These factors may reduce the potential market for our common stock by reducing the number of potential investors. This may make it more difficult for investors in our common stock to sell shares to third parties or to otherwise dispose of their shares. This could cause our stock price to decline.

We currently do not intend to pay dividends on our common stock.   We currently do not plan to pay dividends on shares of our common stock in the near future. Consequently, an investor in our common stock can only achieve a return on its investment in us if the market price of our common stock appreciates.

We are contractually obligated to issue shares in the future, which will dilute your interest in us.  As of December 31, 2012, there were approximately 13,585,000 shares of common stock issuable upon exercise of vested stock options outstanding, at a weighted-average exercise price of $0.23 per share.  An additional 13,997,495 shares are reserved for issuance under our 2006 Equity Incentive and our Employee Stock Purchase Plan as of December 31, 2012.  We expect to issue additional options to purchase shares of our common stock to compensate employees, consultants and directors, and may issue additional shares to raise capital to fund design, licensing and construction of a uranium de-conversion plant.  Any such issuances will have the effect of further diluting the interest of the holders of our securities.  Also outstanding as of December 31, 2012, are Series F warrants for the issuance of 7,700,000 shares of common stock, Series H Warrants for the issuance of 7,714,451 shares of common stock, Series I Warrants for the issuance of 18,142,333 shares of common stock, and Series K warrants for the issuance of 4,502,520 shares of common stock.

Item 1B.  UNRESOLVED STAFF COMMENTS

We are a smaller reporting company, as defined by Item 10(f)(1) of Regulation S-K, and therefore, are not required to provide the information required by this item.

Item 2.    PROPERTIES

We lease two properties in Idaho Falls, Idaho, and we hold the conditional title to 640 acres of land in Lea County, New Mexico.    The following paragraphs provide a brief summary of these properties.

4137 Commerce Circle, Idaho Falls, ID – The facility located on this property houses our main corporate headquarters and all of our manufacturing operations except our FEP operations.  We hold this property pursuant to a lease that extends through April 2021.  The facility was new when leased in March 2001 and remains in excellent condition.   We have a purchase option and a right of first refusal on this property that allows us to purchase this property at any time for a stated amount.

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1359 Commerce Way, Idaho Falls, ID – The facility located on this property houses our FEP pilot production operations.  The facility was first leased in February 2004 and is in excellent overall condition.  We hold this property pursuant to a lease that extends through April 2013. Our lease includes an option for us to extend the lease for an additional one-year term at the expiration of the current term.   We also have a purchase option and a right of first refusal on this property that allows us to purchase this property at any time for a stated amount.

Land - Lea County New Mexico – In August 2011, we received land from Lea County, New Mexico, pursuant to a Project Participation Agreement whereby the land was deeded to us for no monetary consideration. In return, we committed to construct a uranium de-conversion and FEP facility on the land.  In order to retain title to the property, we must begin construction of the uranium de-conversion facility no later than December 31, 2014, complete Phase 1 of the project and have hired at least 75 persons to operate the facility no later than December 31, 2015, although commercial operations need not have begun by that date. If we do not timely perform the construction and hiring by those dates, then we may, at our sole option, either purchase or re-convey the property to Lea County, New Mexico.  The purchase price of the property would be $776,078, plus interest at the annual rate of 5.25% from the date of the closing to the date of payment.  If we timely perform the project commencement requirements, Lea County, New Mexico will execute a full and complete release of the mortgage on the property.  We have not recorded the value of this property as an asset and will not until such time that sufficient progress on the project has been made to meet our obligations under the agreements for permanent transfer of the title.

Item 3.   LEGAL PROCEEDINGS

We are not party to any material pending legal proceedings.

Item 4.   MINE SAFETY DISCLOSURES

Not Applicable.

PART II

Item 5.

MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our common stock is quoted on the Over-the-Counter Bulletin Board (OTCBB) under the trading symbol “INIS.OB”  High asked prices and low bid prices reported by the OTCBB during the periods indicated are shown below, which reflect inter-dealer prices, without retail markup, mark-down, or commission and may not reflect actual transactions:

On March 4, 2013, there were 509 holders of record of our common stock.   We have never paid any cash dividends on our common stock.  In the future, and based upon our profit performance, our Board of Directors will evaluate and determine whether to issue dividends or retain funds for research and development and expansion of our business. We do not anticipate paying any dividends to shareholders for the foreseeable future.

Item 6.   SELECTED FINANCIAL DATA

We are a smaller reporting company, as defined by Item 10(f)(1) of Regulation S-K, and is, therefore, are not required to provide the information required by this item.

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Item 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion of the results of the company's operations and financial condition should be read in conjunction with the accompanying financial statements and related Notes thereto included in Item 8, “Financial Statements and Supplementary Data,” within this report.

Our belief is that transparency and clarity are key goals of responsible financial reporting.  We are committed to these goals which we believe will provide our shareholders with informative financial disclosures and present an accurate overview of our financial position and operating results.

Management’s Discussion and Analysis of Financial Condition and Results of Operations is intended to provide readers of our financial statements with a clear explanation, from the perspective of our management, of our financial condition, results of operations, liquidity, and certain other factors that may affect our future results.  The following information is presented in six sections:

·

Overview

·

Business Strategy and Core Philosophies

·

Results of Operations

·

Liquidity and Capital Resources

·

New Accounting Standards

·

Outlook for 2013

Overview

We manufacture a full range of nuclear medicine calibration and reference standards, a wide range of products including cobalt teletherapy sources, and a varied selection of radioisotopes and radiochemicals for medical research, and clinical devices. We hold several patents for a fluorine extraction process that we are planning to use in conjunction with a new planned commercial depleted uranium de-conversion facility, and provide a host of transportation, recycling, and processing services on a contract basis for clients. A more detailed description of each of these product lines and services can be found in Item 1, “Business” under “General Business and Products Description,” within this report.

In 2012, we continued to build our various business segments, make investments into facilities and infrastructure, launch new products, and enter into new agreements that we believe will increase our future revenues.  Although a detailed description of segment performance can be found in the Results of Operations section of this report, the following list highlights some of our more significant accomplishments in 2012:

·

In April 2012, we received our air permit from the New Mexico Environment Department for the planned depleted uranium de-conversion and fluorine extraction processing facility.

·

In July 2012, we completed a $3 million private placement that further funded NRC licensing activities and allowed us to make significant investments in our core business segments.

·

In October 2012, we were issued a Part 40 combined construction and operating license for our planned depleted uranium de-conversion and fluorine extraction processing facility.

·

Completed significant manufacturing process improvements in our iodine-131 processes.

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Business Strategy and Core Philosophies

Broadly defined, our business strategy is to continue to build our reputation as a leader in the nuclear medicine and nuclear products industries, as well as seek ways to improve our customer service, and expand our market share with the ultimate goal of providing greater returns to our shareholders.  Specifically, we are continuously working with our customers to improve and develop products to better serve the needs of the end user which, ultimately, will boost product sales. A key part of our near and long range business strategy is to continue work on building the nation’s first commercial depleted uranium de-conversion and fluorine extraction process facility.

Our core philosophy is to strive to provide high quality products and services as a profitable and environmentally conscious business, while offering excellent customer service and the highest quality working environment to our employees.  We operate under an ISO Quality Management System under which we seek to continuously improve our product manufacturing processes.

Summary for 2012:

·

Revenue in 2012 was approximately $7.6 million.

·

Net loss for 2012 decreased by approximately 19% compared to 2011.

·

Our total gross profit rate decreased from 36% in 2011 to 35% in 2012.

·

Our operating costs, exclusive of research and development expense, decreased approximately 24% in 2012. Including research and development expense in total operating expense, overall operating costs decreased by approximately 28%.

Year ended December 31, 2012 compared to year ended December 31, 2011

The following table presents comparative Sale of Product for the years 2012 and 2011:

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Revenues

Radiochemical Products

Sales of radiochemical products accounted for approximately 22% of our total sales revenue in 2012 and decreased by $134,643, or approximately 7% to $1,677,291, as compared to $1,811,935 in 2011.  Sales performance in this segment was largely driven by the decrease in our sales of iodine-131.  Sales of iodine-131 decreased in 2011 after we received the warning letter from the U.S. Food and Drug Administration (FDA) discussed below. As a result of the warning letter, several of our customers moved to other distributers of iodine-131 for their radiochemical needs. However, we expect that the corrective actions that we completed during 2012 will mitigate this drop in iodine-131 revenue and we will see stronger sales of this product during 2013.

Of our total iodine-131 sales for 2012, approximately 83% of those sales were made through one distributor, RadQual, LLC, of which we own a 24.5% share. Should RadQual, LLC discontinue sales of iodine-131, or if we terminate their distributor role, we have the option to market and sell this product directly to customers.

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At our request, in July 2011 the FDA conducted an inspection of our radiochemical manufacturing processes.  We requested the inspection in order to establish our status as a registered FDA facility for the re-packaging and distribution of iodine-131as an Active Pharmaceutical Ingredient (API).  During the inspection, the FDA made the determination that it considered us to be a drug product “manufacturer” and not a “re-packager” and therefore evaluated our processes against a higher compliance standard than we had in place.  As a result of this inspection we were issued a Warning Letter by the FDA for Current Good Manufacturing Practices (CGMP) deficiencies related to our iodine-131 production processing. During 2012 we have incorporated all applicable CGMP requirements into our radiochemical production processes to ensure that our products meet specific quality requirements.  We also provided the FDA with a complete response to its Warning Letter and have attained full CGMP compliance.

Cobalt Products

Total cobalt products sales accounted for approximately 18% of our total sales revenue in 2012. There were no bulk cobalt sales during 2012, and we reported $929,898 of bulk cobalt sales in 2011. Please refer to the previous table which presents this comparative data.

The following table presents sales of each of our cobalt product lines for 2012 as compared to 2011:

Sales of total Cobalt Products decreased by 41% to $1,369,130 in 2012, as compared to $2,339,154 in 2011 primarily as the result of the decline in bulk cobalt sales.  Bulk cobalt sales decreased by $929,898, or 100%, from 2011 to 2012. Sales of cobalt products excluding bulk cobalt sales decreased by approximately 3% to $1,369,130, as compared to $1,409,256 in 2011.  We believe that, if we had been able to pull additional target material from the ATR during 2012, both our bulk cobalt sales and our sealed source sales would have been significantly higher. During 2012 we had customers requesting both bulk cobalt and sealed source products; however, we were unable to supply these products due to the DOE reactor management issues discussed below. Cobalt Recycle decreased by 12% in 2012, as compared to 2011.  This decrease was directly attributable to the lack of an approved shipping package to transport expended sources.  During the latter part of 2012, the AOS 5979 shipping package was removed from service when its permit expired and the manufacture of its replacement, the AOS 100, had not been completed.  The decrease in revenue in this segment was attributable to a combination of a decrease in the production rate of high specific activity material caused by the U.S. Department of Energy’s (DOE) experimental projects and a curtailment of cobalt handling by the DOE pending an investigation of a damaged cobalt target in the test reactor.  We are working with the DOE and the subcontractor to resolve both these issues and hope to resume cobalt product production by mid-2013.  We have also received certification under both ISO-9001 and ISO-13485 standards for the manufacture and design of certain cobalt-60 products.  The ISO certifications are important to our plans for continued expansion of sales of several products into international markets. We anticipate that these certifications will continue to strengthen our international source sales and benefit all of our customers in terms of the quality of the products supplied.

Sales of sealed source products decreased 1% in 2012, as compared to 2011.  During 2012 we continued marketing our sealed source products internationally, and, although world economic conditions will potentially have a significant impact on foreign sales, we believe, that with these continued marketing efforts coupled with the restored ability to pull cobalt material from the ATR, and the availability of our new transportation containers, we will be able to promote growth in this segment.  In February 2012, the NRC issued a Certificate of Compliance for three sizes and five different models of the AOS model containers. These containers are the newest Type B (U) package designed in the United States and meet all of the most current International Atomic Energy Agency (IAEA) regulations for the safe transport of radioactive material.  The AOS model containers are suitable to replace many models of radioactive material containers used by the United States Government and commercial interests that lost their approval for use in October 2008.  We have an agreement with AOS to be the exclusive worldwide distributor of this new family of containers and anticipate that our role as exclusive distributor will enhance our cobalt products business segment.

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The production of cobalt, which we use in both bulk cobalt sales and sealed source sales, is currently dependent on the U.S. Department of Energy and its prime-operating contractor, which manages the U.S. government’s Advanced Test Reactor in Idaho Falls, Idaho. Loss of the ability to use these irradiation services would significantly impact our cobalt products business segment because there is not currently another reactor available in the U.S. that is capable of providing this type of service for us and because it takes three years to produce cobalt-60.

We previously reported that in December 2011 we were forced into a new contract arrangement through the DOE Office of Science National Isotope Development Center (NIDC).  As expected, this change in contract approach by the DOE resulted in a significant increase in costs and impacted communication and coordination on production issues to the point of reducing sales.  Furthermore, in June 2012, a leak of a cobalt target belonging to another commercial business resulted in the curtailment of all further cobalt handling and production activities at the ATR pending completion of several corrective actions.  The investigation into the leaking cobalt target identified three areas that needed corrective action.  Those areas were; (1) changes to cobalt target handling controls, (2) concerns with continued irradiation of in-process targets, and (3) enhancing the design of future cobalt targets.  We are currently working through completing corrective actions for target handling and enhanced target design.  We currently anticipate beginning to handle cobalt targets in mid-2013 which will allow resumption of cobalt sales. We also anticipate a new cobalt target design later this year that will allow a resumption of irradiation of this new design later this year.  However, it is not certain that the INL contractor will permit continued irradiation of the in process cobalt targets currently stored at the reactor site.  We are still discussing this issue with the INL contractor but should we not be able to resume irradiation of these targets we would be forced to write down the amount of the inventory costs assigned to this material (currently valued at approximately $830,000) and sell or salvage these targets.  Because cobalt takes approximately three years to produce not being able to continue irradiation of these targets would cause about a three year gap in new cobalt production.

To mitigate the impact of these delays and interruptions to our cobalt production activities caused by the NIDC and the cobalt target failure we are investigating alternative sources of cobalt supply, evaluating possible sales of lower activity cobalt already in process, and identifying additional reactors for cobalt irradiation.

Nuclear Medicine Standards

Sales of nuclear medicine standards accounted for approximately 55% and 51%, of our total sales revenue in 2012 and 2011, respectively. Sales in this segment decreased by $625,659, or approximately 13%, to $4,169,710 in 2012, as compared to $4,795,369 in 2011.  This year-to-year comparison includes sales from TI Services, LLC, a 50/50 joint venture that we formed with RadQual, LLC in December 2010, to distribute products and services for nuclear medicine, nuclear cardiology and Positron Emission Tomography (PET) imaging.  The following table presents 2012 and 2011 sales for the nuclear medicine standards segment:

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TI Services, LLC sales for 2012 were $2,390,514 as compared to $2,801,109, for 2011, a decrease of $410,595, or approximately 15%.  This decrease in TI Services, LLC sales is largely attributable to a drop in sales of paper products used in nuclear medicine imaging which is the result of clinics shifting towards maintaining electronic records. We are working closely with RadQual, LLC, our partner in the TI Services, LLC joint-venture, to develop new products to market through TI Services, LLC.  Sales of flood sources decreased to $1,448,179 in 2012, from $1,650,485, in 2011.  This is a decrease of $202,306, or approximately 12%. We believe this decline is the result of medical facilities delaying the replacement of imaging sources due to budgetary constraints and a decline in operating nuclear medicine clinics. However, in 2011, we received both ISO-9000 and ISO-13485 quality program certifications and in 2012 we began marketing our nuclear medicine products into several foreign countries that required this additional quality certification for manufacturers. We believe that as the global economy improves and with our added certifications, our sales in this segment will potentially return to historical growth levels.  Miscellaneous source sales decreased by $12,758, to $331,017 in 2012, from $343,775 in 2011.  This is a $12,758 decrease, or approximately 4%.  The decreases in these year-to-year comparisons are, again, likely the result of clinics delaying the replacement of imaging and calibrating sources in an effort to cut costs.  We anticipate, that, as clinics find it necessary to replenish their source supplies, and with stronger marketing efforts by TI Services, LLC, sales in this segment will again increase in 2013.

Radiological Services

Revenues from our Radiological Services segment accounted for approximately 2% of our total sales revenue in both 2012 and 2011.  Sales in this segment decreased by $50,760, or approximately 22%, from $228,631 in 2011, to $177,871 in 2012. Gemstone processing accounted for approximately 92% of Radiological Services sales in 2012 and approximately 78% in 2011.  Revenues from gemstone processing decreased by $15,087, from $179,451 in 2011, to $164,364 in 2012.  This is a decrease of approximately 8% and reflects the general economy and slow growth in sales of luxury items, such as jewelry.

Miscellaneous Radiological Services revenue decreased by approximately 73% in 2012, as compared to 2011. We perform radiological service consulting work in conjunction with our sealed source sales and expended source disposal services. During 2012, opportunities for performing radiological services declined as material used in sealed source manufacture became unavailable to us.  This drastic drop in the availability of material was due to a decrease in the production rate of high specific activity material caused by the DOE’s experimental projects and a curtailment of cobalt handling by the DOE pending an investigation of a damaged cobalt target in the test reactor.

We obtained an amendment to our NRC license during 2012 that will allow the performance of certain field service activities.  These activities include efforts to support recovery of disused sources under the DOE’s Orphan Source Recovery Program (OSRP) and installation or removal of certain cobalt therapy units.  Based upon the current contract commitments for this type of work in 2013 we expect that field services will become the primary source of revenue within this segment.

Fluorine Products

There were no revenues to report from the fluorine products segment for 2012.  We are developing our fluorine products in conjunction with uranium de-conversion, in order to take advantage of the anticipated need for depleted uranium de-conversion services.  Our FEP patents provide a unique opportunity to provide certain high-purity fluoride compounds while also offering a “for fee” de-conversion service to the uranium enrichment industry.  During 2012, we incurred $1,050,995 of planning and other expenses related to the de-conversion project, as compared to $4,428,799 in 2011.  This decrease of approximately $3,378,000 is the result of reduced project spending due to a decrease in available funds for the project during 2012, as well as capitalizing certain expenditures on the project versus expensing them as research and development cost, as had been done in prior periods.   Although funding was limited in 2012, we not only received our NRC combination construction and operating license, but we also made excellent progress on additional planning for the de-conversion project.  Having completed our FEP test program during 2012, we expect to complete the shutdown of the FEP pilot scale facility during 2013 and do not anticipate any revenue from the sale of fluoride products in the coming year.

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Transportation

Revenues from our Transportation segment accounted for approximately 3% of our total revenues in 2012 and 2011.  Sales in this segment decreased by approximately 21% to $227,932 in 2012, as compared to $286,923 in 2011. This decline in revenue was attributable to reduced opportunities for transportation contracting during the period. The decline in our cobalt products segment directly affects revenues in our transportation segment since we use our specially trained drivers to transport our products, such as teletherapy sources, as well as in the transportation of shipping containers such as the type B(U) casks.  As revenues for our cobalt products and radiological services segments regain strength through cask sales and field service work, we anticipate that our transportation segment revenues will grow as well. There are numerous regulations that apply to, and agencies which monitor, the security and tracking of cobalt shipments and our Transportation segment specializes in the transport of hazardous, radioactive materials including large quantity cobalt shipments.

Cost of Revenues and Gross Profit

During 2012, we took steps to recover increased freight and shipping costs by making sales price adjustments and by pursuing alternate shipping methods. We were also able to cut some freight costs by using our own transportation vehicles for some higher cost, cross-country shipments of material. We also made adjustments to sales prices and reduced distributor discounts to increase revenue.  We will continue to monitor these costs and make further adjustments as necessary to maintain product margins.

Operating Costs and Expenses

Total operating costs and expenses for 2012 were $4,835,351, as compared to $6,786,991 in 2011; this is a decrease of   $1,951,640 or approximately 29%.

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The following table presents Operating Costs and Expenses for 2012 as compared to 2011:

Salaries and Contract Labor decreased 38% in 2012, as compared to 2011. Salaries and Contract Labor included approximately $286,000 in equity-based compensation in 2012, as compared to approximately $1,400,000 in 2011. This decrease was the result of recording a significant amount of non-cash, equity based compensation expense in 2011 resulting from modification to the terms of several classes of warrants, in which we offered holders a discounted exercise price, as well as non-cash compensation expense recorded for stock options and restricted stock awards outstanding. Equity-based compensation recorded during 2012 was based on stock options and restricted stock awards outstanding. These transactions are discussed in detail in the Notes to Consolidated Financial Statements for the years ending December 31, 2012 and 2011.  General, Administrative and Consulting expenses decreased 4% to $1,946,105 in 2012, as compared to $2,031,862 in 2011.  During 2011, we incurred additional consulting and training expenses to enhance and develop our quality assurance program and to address FDA comments with regard to our radiochemical product production processes. These costs decreased in 2012 as corrective actions were fully implemented.

Research and development expense was $990,021 for 2012 as compared to $1,695,315 for 2011.  This is a decrease of $705,294, or approximately 42%.  The majority of research and development expense, reported in both 2012 and 2011, was incurred for planning and licensing activities with regard to the planned de-conversion facility.  During 2012, funding specifically for this project was limited; consequently, we limited some of the additional investment in the project.

Other Income (Expense)

Other income was $49,982 for 2012 as compared to $6,339 for 2011.  This increase of $43,643 was in large part due to the net effect of a non-operating cost reimbursement project that was completed during 2012, whereas in 2011, there was no such project.  Equity in net income of affiliate reported reflects the Company’s 24.5% share of net income reported by RadQual, LLC.  Interest income reported in 2012 was $502, as compared to $4,724 reported in 2011.  This decrease of $4,222, or approximately 89%, is due to a decrease in funds held at banks, and other institutions, in interest bearing accounts. Interest expense decreased significantly during 2012, from $2,809,177 in 2011, to $203,596 in 2012.  This is a decrease of $2,605,581, or approximately 92%. This decrease is largely due to non-cash interest expense recorded in 2011 for convertible debentures which matured in August 2011.

Net Loss

Our Net Loss was $2,240,810 in 2012, compared to a Net Loss of $5,950,438 in 2011.  The decrease in net loss of $3,709,628, or approximately 62%, was the result of the decrease in research and development expense related to the proposed de-conversion facility and the decrease in interest expense recorded during 2012 as compared to 2011.

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Liquidity and Capital Resources

On December 31, 2012, we had cash and cash equivalents of $546,143 compared to $2,102,696 at December 31, 2011, and cash used in operating activities was $2,734,752.

The decrease of cash and cash equivalents of $1,556,553 (difference off balance sheet, CCE) is primarily due to the use of cash for expenses related to the licensing, planning, and engineering of the planned de-conversion facility during 2012.

Accounts receivable at December 31, 2012 were $861,790 as compared to $803,350 at December 31, 2011.

Inventories at December 31, 2012 were $1,284,561 as compared to $1,465,293 at December 31, 2011.  The majority of our inventory consists of irradiated material held at the site of the U.S. Department of Energy’s prime-operating contractor, which controls the Idaho test reactor.  The typical operating cycle for the irradiation of this material is greater than one year.  It is not certain at the present time whether the INL contractor will permit the continued irradiation of this material.  Should the INL contractor determine that continued irradiation of the material will not be allowed we will attempt to sell or salvage this material and would have to write down a significant percentage of the inventory value carried for the targets.  A final decision on the fate of these targets is expected before mid-2013.

We incurred a loss of $2,240,810 for the year ended December 31, 2012, and have an accumulated deficit of $114,235,302 since inception.  To date, our operations and plant and equipment expenditures have been funded principally from proceeds from public and private sales of equity as well as through asset sales.

Net cash used in investing activities was $1,526,252 for 2012. We used $1,835,313 to purchase property and equipment and intangible assets. We received member distributions from our investment in RadQual, LLC, in the amount of $83,352 and also received proceeds from the maturity of a restricted certificate of deposit in the amount of $225,709.

Financing activities provided cash of $2,704,451 for the year ended December 31, 2012.  We received proceeds from the issuance of convertible debentures in the amount of $2,969,900 and proceeds from the sale of stock in the amount of $62,910.

In March 2012, the Company renegotiated the terms of a $500,000 unsecured note payable to its former Chairman of the Board.  The original loan required annual interest payments on the principal balance at 7% per year, payable each April 1st, and the note was to mature on April 1, 2012.  Pursuant to an amendment to the loan, the maturity date was extended from April 1, 2012 to November 1, 2012, and accrued interest in the amount of $35,000 was paid in cash on March 30, 2012.  Additionally, 204,167 shares of the Company’s common stock were issued on April 1, 2012 to the former Chairman in lieu of the interest to be paid in cash on the loan from April 1, 2012 to November 1, 2012, based on an annual interest rate of 14% and the closing price of the Company’s common stock of $0.20 per share on March 23, 2012. On July 26, 2012, as part of a private placement transaction, the former Chairman of the Board converted $100,000 of this $500,000 note due from the Company as consideration for purchase of convertible debentures in the offering, thereby reducing the amount due from the Company under the original note to $400,000.  In October 2012, the Company renegotiated the remaining $400,000 unsecured note payable which was to mature in full on November 1, 2012, and the terms of the note were further modified.  Pursuant to the terms of the modification, the Company made a $200,000 principal payment on October 29, 2012.  Starting on November 1, 2012, interest shall accrue on the remaining principal balance at an annual rate of 5% and the remaining principal payments were to be made in $100,000 installments on December 1, 2012 and January 1, 2013. In November 2012, the note was further modified to state that the remaining $100,000 installments would be made on January 1, 2013 and February 1, 2013. Subsequently, in January 2013, the note was again modified making the final $100,000 payment plus accrued interest due in March 2013.

We expect that cash from operations, cash obtained through equity offerings, and our current cash balance will be sufficient to fund operations for the next twelve months. And, although we may seek additional debt financing for our projects and operations in the future, there is no assurance that we will be able to secure additional debt financing on acceptable terms to us, or at all.

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On July 27, 2012, we entered into a securities purchase agreement with certain institutional and private investors pursuant to which we sold convertible debentures for an aggregate of $3,069,900. The debentures bear interest at 8%, mature July 2017 and are unsecured.  These debentures are convertible at any time into shares of our common stock at an initial conversion price of $0.225 per share, subject to adjustment in certain conditions.  Under certain conditions, we may force the conversion of the debentures any time following the one year anniversary of the closing date.  In addition, from and after the second anniversary of the closing date, we have the right to redeem all or part of the debenture at any time prior to their maturity date. Notwithstanding the foregoing, we also have the right prior to the second anniversary of the issuance of the debentures to redeem all or part of the debenture if, but only if, we successfully consummate a financing of the proposed Hobbs, New Mexico de-conversion facility in the amount of at least $25 million.  Any redemption of the debentures by us requires the payment of a redemption fee as set forth in the debentures. Each investor also received a common stock purchase warrant to purchase such number of shares of our common stock equal to twenty five percent (25%) of the number of shares of common stock that the note purchased by such investor may be convertible into on the closing date.  The total Warrants to be issued is 4,502,520. The Warrants are immediately exercisable at a price of $0.30 per share and have a term of five years. The fair value of the warrants, determined using the Black-Scholes Option Pricing Model, was calculated using the following assumptions: risk free rate of .650%, expected dividend yield of 0%, expected volatility of 88%, and an expected life of 5 years.

On February 20, 2013, we entered into a securities purchase agreement with certain private investors pursuant to which we sold convertible debentures for an aggregate of $1,060,000. The debentures accrue interest at a rate of 10% per annum, compounded annually. The conversion price in effect for these debentures, on any conversion date, is equal to the lesser of $0.14 or the average closing price of our common stock for the 120 consecutive trading days up to, but not including, the maturity date.  If at any time prior to the maturity date, the volume weighted average price of our common stock exceeds $0.50 per share over any consecutive thirty trading days then the Company is required to convert the debentures.  At the maturity date all of the outstanding principal of the debentures as well as the accrued interest will be converted into shares of common stock.  The fair market value of the Company’s common stock was $0.15 per share on the date of the agreement. Consequently, the difference between the anticipated conversion price of $0.14 and the closing price of $0.15, multiplied by the number of issuable common shares upon conversion, will be recorded as a beneficial conversion feature with an increase to equity and a debt discount in the amount of $75,715. This amount will be accreted to interest expense through February 20, 2015.

Off-Balance Sheet Arrangements

As of December 31, 2012 and 2011, we had no off-balance sheet arrangements or obligations.

New Accounting Standards

None.

Outlook for 2013

Based upon the investments we have made in our facilities, projects, and products developed in 2012, we have the following goals for 2013:

·

Continue the New Mexico groundwater permitting activities for the planned uranium de-conversion and processing facility;

·

Complete financing arrangements on the planned depleted uranium facility, complete detailed design and break ground on construction of the project.

·

Complete additional long term sales agreements with customers for various fluoride products from the planned depleted uranium processing facility;

·

Successfully resume  cobalt production and source sales though existing agreements and international sales, and identify additional back-up sources of supply;

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·

Increase the revenue within the Radiological Services segment by utilizing the  NRC license for additional field service activities;

·

Continue to examine new opportunities to expand the sale of radiochemical products through joint development agreements with Universities, such as Idaho State University for Copper-67, and evaluate new generic drug product applications through the U.S. Food and Drug Administration (FDA);

·

Continue to expand our customer base, increase revenues in every business segment, continue to reduce production and operating costs, and attempt to achieve profitability in our core business segment operations; and

·

Expand sales of our nuclear medicine products and increase cash flow by offering new products, expanding international sales, and improving the profitability of our joint venture, TI Services LLC.

Item 7A.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are a smaller reporting company, as defined by Item 10(f)(1) of Regulation S-K, and, therefore, are not required to provide the information required by this item.

Item 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The following financial statements are included herewith and are hereby incorporated by reference:

Item 9.   CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

Item 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), that are designed to ensure information required to be disclosed in our reports that are filed or submitted under the Exchange Act, are recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms.  Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

Management, with the participation of our CEO and CFO, has evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2012. Based on that evaluation, our CEO and CFO concluded that our disclosure controls and procedures were effective as of December 31, 2012.

27

Annual Report of Management on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is a process to provide reasonable assurance regarding the reliability of our financial reporting for external purposes in accordance with accounting principles generally accepted in the United States of America. Internal control over financial reporting includes maintaining records that in reasonable detail accurately and fairly reflect our transactions; providing reasonable assurance that transactions are recorded as necessary for preparation of our financial statements; providing reasonable assurance that receipts and expenditures are made in accordance with management authorization; and providing reasonable assurance that unauthorized acquisition, use or disposition of company assets that could have a material effect on our financial statements would be prevented or detected on a timely basis. Because of its inherent limitations, internal control over financial reporting is not intended to provide absolute assurance that a misstatement of our financial statements would be prevented or detected.

Management conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework and criteria established in Internal Control — Integrated Framework, issued by the Committee of Sponsoring Organizations of the Treadway Commission. This evaluation included review of the documentation of controls, evaluation of the design effectiveness of controls, testing of the operating effectiveness of controls and a conclusion on this evaluation. Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2012.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended December 31, 2012, that have materially affected, or are reasonable likely to materially affect, our internal control over financial reporting.

Item 9B. OTHER INFORMATION

In October 2012, we renegotiated the remaining $400,000 principal balance on an unsecured note payable to our former Chairman of the Board.   Pursuant to the terms of the modification to the note, we made a $200,000 principal payment on October 29, 2012.  Starting on November 1, 2012, interest began to accrue on the remaining principal balance at an annual rate of 5% and the remaining principal payments were to be made in $100,000 installments on December 1, 2012 and January 1, 2013. In November 2012, the note was further modified to state that the remaining $100,000 installments would be made on January 1, 2013 and February 1, 2013. Subsequently, in January 2013, we renegotiated the remaining $100,000 principal balance of the note.  Per the modified agreement, the remaining $100,000 principal would continue to accrue interest at a rate of 5% until March 2013.  All accrued principal and accrued interest was paid in full in March 2013.

PART III.

Item 10.    DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE

We have adopted a Code of Ethics that applies to our principal executive officer, principal financial officer, principal accounting officer or controller or persons performing similar functions. Our Code of Ethics is posted on our website and can be accessed, free of charge, at http://www.internationalisotopes.com. If we waive, or implicitly waive, any material provision of the Code of Ethics that apply to our executive officers, or substantively amend the Code of Ethics, we will disclose that fact on our website.

The other information required by this item is incorporated by reference in our definitive proxy statement for our 2013 annual meeting of shareholders, which will be filed with the Securities and Exchange Commission within 120 days after December 31, 2012.

Item 11.    EXECUTIVE COMPENSATION

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Item 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

Securities Authorized for Issuance under Equity Compensation Plans

We currently maintain three equity compensation plans that provide for the issuance of our common stock to officers and other employees, directors and consultants, each of which have been approved by our shareholders:  the 2002 Long Term Incentive Plan, the International Isotopes Inc. Employee Stock Purchase Plan and the 2006 Equity Incentive Plan. The following table sets forth information regarding outstanding options and shares reserved for future issuance under the foregoing plans as of December 31, 2012:

(1)

Includes 12,735,908 shares available for issuance under the 2006 Equity Incentive Plan and 1,261,587 shares available for issuance under the International Isotopes Inc. Employee Stock Purchase Plan.  Up to 2,000,000 shares that are currently subject to outstanding options granted under the 2002 Long Term Incentive Plan may become available for issuance under the Company’s 2006 Equity Incentive Plan in the future to the extent those shares are not issued (for example, if those options expire without being exercised).  Shares available for issuance under the 2006 Equity Incentive Plan may be granted in the form of stock options, stock awards, restricted stock awards, restricted stock units, stock appreciation rights or any other form of equity compensation approved by the Compensation Committee or the Board.

Item 13.   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Item 14.   PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this item is incorporated by reference to our definitive proxy statement for our 2013 annual meeting of shareholders, which will be filed with the Securities and Exchange Commission within 120 days after December 31, 2012.

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Item 15.   EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)(1) and (a)(2) Financial Statements and Financial Statement Schedules

See the index to and the financial statements and supplementary data beginning on page 27 and 48 which are incorporated herein by reference.

(a)(3)  Exhibits

The following documents are filed or incorporated herein by reference as exhibits to this report:

2.1

Unit Purchase Agreement, effective as of May 23, 2008, among the Company, Randall O’Kane, Keith Allberg and Peter Ouimette (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K filed on June 2, 2008).

2.2

Asset Purchase Agreement, dated May 30, 2008, between the Company and Sequoyah Fuels Corporation (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K filed on June 5, 2008).

2.3

First Amendment to the Asset Purchase Agreement, dated June 3, 2008, between the Company and Sequoyah Fuels Corporation (incorporated by reference to Exhibit 99.2 of the Company’s Current Report on Form 8-K filed on June 5, 2008).

2.4

Securities Purchase Agreement, dated November 7, 2008, among the Company and the purchasers named therein (incorporated by reference to Exhibit 2.1 of the Company’s Current Report on Form 8-K filed on November 12, 2008).

2.5

Securities Purchase Agreement, dated September 18, 2009, among the Company and the purchasers named therein (incorporated by reference to Exhibit 2.1 of the Company’s Current Report on Form 8-K filed on September 18, 2009).

2.6

Securities Purchase Agreement, dated February 24, 2010, among the Company and the purchasers named therein (incorporated by reference to Exhibit 2.1 of the Company’s Current Report on Form 8-K filed on February 25, 2010).

2.7

Securities Purchase Agreement, dated October 29, 2010, among the Company and the purchasers named therein (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K filed on November 1, 2010).

2.8

Securities Purchase Agreement, dated July 27, 2012, among the Company, the purchasers named therein and Euro Pacific Capital, Inc. (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K filed on August 2, 2012).

3.1

Restated Certificate of Formation, as amended (incorporated by reference to Exhibit 3.1 of the Company’s Quarterly Report on Form 10-Q for quarter ended June 30, 2010).

3.2

Bylaws of the Company (incorporated by reference to Exhibit 3.2 of the Company's Registration Statement on Form SB-2 filed on May 1, 1997 (Registration No. 333-26269).

4.1

Form of Class E Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Current Report on Form 8-K filed on April 21, 2008).

4.2

Form of Class F Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Current Report on Form 8-K filed on November 12, 2008).

4.3

Form of Class G Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Current Report on Form 8-K filed on September 18, 2009).

30

4.4

Form of Class H Warrant (incorporated by reference to Exhibit 4.2 of the Company’s Current Report on Form 8-K filed on February 25, 2010).

4.5

Form of Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Current Report on Form 8-K filed on November 1, 2010).

4.6

Form of Class J Warrant (incorporated by reference to Exhibit 4.7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2011).

4.7

Form of 8% Convertible Note (incorporated by reference to Exhibit 99.2 of the Company’s Current Report on Form 8-K filed on August 2, 2012).

4.8

Form of Class K Warrant (incorporated by reference to Exhibit 99.3 of the Company’s Current Report on Form 8-K filed on August 2, 2012).

10.1†

2002 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 of the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002).

10.2†

Form of Incentive Stock Option Agreement under the 2002 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.2 of the Company’s Annual Report on Form 10-KSB for the year ended December 31, 2004).

10.3†

International Isotopes Inc. Employee Stock Purchase Plan (incorporated by reference to Appendix B to the Company’s definitive proxy statement on Schedule 14A, as amended, filed on May 6, 2005).

10.4

Lease Agreement (4137 Commerce Circle), dated May 1, 2011, between the Company and Adrian Rand Robison and Dorothy Robison (incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2011).

10.5

Option to Purchase and Right of First Refusal for Property located at 4137 Commerce Circle (incorporated by reference to Exhibit 10.7 of the Company’s Annual Report on Form 10-KSB for the year ended December 31, 2004).

10.6

Lease Agreement (3159 Commerce Way), dated May 1, 2011, between the Company and Adrian Rand Robison and Dorothy Robison (incorporated by reference to Exhibit 10.2 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2011).

10.7

Option to Purchase and Right of First Refusal for Property located at 3159 Commerce Way (incorporated by reference to Exhibit 10.9 of the Company’s Annual Report on Form 10-KSB for the year ended December 31, 2004).

10.8

Unsecured Note, dated April 1, 20002, issued to William Nicholson (incorporated by reference to Exhibit 10.12 of the Company’s Annual Report on Form 10-KSB for the year ended December 31, 2004).

10.9

Modification #1 to Unsecured Note Agreement between the Company and William Nicholson (incorporated by referenced to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2012).

10.10

Modification #2 to Unsecured Note Agreement between the Company and William Nicholson (incorporated by referenced to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012).

10.11

Modification #3 to Unsecured Note Agreement between the Company and William Nicholson (incorporated by referenced to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2012).

10.12+

Modification #4 to Unsecured Note Agreement between the Company and William Nicholson.

31

10.13†

2006 Equity Incentive Plan (incorporated by reference to Annex A of the Company’s definitive proxy statement on Schedule 14A filed on May 1, 2006).

10.14

Alpha Omega Services, Inc. Distributor Agreement, dated August 14, 2007, between the Company and Alpha Omega Services, Inc. (incorporated by reference to Exhibit 99.1 of the Company's Current Report of Form 8-K filed on August 22, 2007).

10.15

Technical Support Services Agreement, dated May 30, 2008, between the Company and Sequoyah Fuels Corporation (incorporated by reference to Exhibit 99.3 of the Company’s Current Report on Form 8-K filed on June 5, 2008).

10.16†

Form of Indemnification Agreement (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K filed on September 17, 2008).

10.17

Memorandum of Agreement, dated October 22, 2009, between International Isotopes Inc. and New Mexico Environment Department (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K filed on October 27, 2009).

10.18

Gemstone Processing Agreement between the Company and Quali-Tech, Inc. (incorporated by reference to Exhibit 10.1 of Amendment No. 1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2009 filed on September 24, 2009).

10.19

Manufacturing Agreement, dated January 30, 2006, between the Company and RadQual, LLC (incorporated by reference to Exhibit 10.2 of Amendment No. 1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2009 filed on September 24, 2009).

10.20

De-Conversion Services Agreement, dated April 13, 2010, between International Isotopes Fluorine Products, Inc. and Louisiana Energy Services, LLC. (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2010).**

10.21

Sales Agreement, dated April 1, 2012, between the Company and GE-Hitachi Nuclear Energy Americas, LLC (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2010).**

10.22

Sales Agreement, effective August 1, 2010, between International Isotopes Idaho, Inc. and NTP Radioisotopes (Pty) Ltd. (incorporated by reference to Exhibit 10.3 of the Company’s Quarterly Report on Form 10-Q for period ended June 30, 2010).**

10.23

Registration Rights Agreement, dated October 29, 2010, among the Company and certain investors party thereto (incorporated by reference to Exhibit 99.2 of the Company’s Current Report on Form 8-K filed on November 1, 2010).

10.24

Isotope and Technical Services Order Form, dated December 23, 2011, between the Company and the U.S. Department of Energy (incorporated by reference to Exhibit 10.23 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2011).**

10.25

Registration Rights Agreement, dated July 27, 2012, among the Company and the purchasers named therein (incorporated by reference to Exhibit 99.4 of the Company’s Current Report on Form 8-K filed on August 2, 2012).

10.26†

Amended and Restated Employment Agreement, dated May 16, 2012, between the Company and Steve Laflin (incorporated by reference to Exhibit 10.2 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012).

21.1

Subsidiaries (incorporated by reference to the Company’s Annual Report on Form 10-KSB for the year ended December 31, 2005).

32

23.1+

Consent of Hansen, Barnett & Maxwell.

31.1+

Certification of Chief Executive Officer under section 302 of the Sarbanes-Oxley Act of 2002.

31.2+

Certification of Chief Financial Officer under section 302 of the Sarbanes-Oxley Act of 2002.

32.1*

Certification of Chief Executive Officer furnished under section 906 of the Sarbanes-Oxley Act of 2002.

32.2*

Certification of Chief Financial Officer furnished under section 906 of the Sarbanes-Oxley Act of 2002.

101*

The following financial statements, formatted in XBRL: (i) Consolidated Balance Sheets as of December 31, 2012 and 2011, (ii) Consolidated Statements of Operations for the years ended December 31, 2012 and 2011, (iii) Consolidated Statement of Shareholders’ Equity for the years ended December 31, 2012 and 2011, (iv) Consolidated Statements of Cash Flows for the years ended December 31, 2012 and 2011 and (v) Notes to Consolidated Financial Statements.  The information in Exhibit 101 is “furnished” and not “filed,” as provided in Rule 402 of Regulation S-T.

________________________________________________

†  This exhibit constitutes a management contract or compensatory plan or arrangement.

**  Contains material that has been omitted pursuant to a request for confidential treatment and such material has been filed separately with the Commission.

+  Filed herewith.

*  Furnished herewith.

33

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

34

INTERNATIONAL ISOTOPES INC. AND SUBSIDIARIES

CONSOLIDATED FINANCIAL STATEMENTS

TABLE OF CONTENTS

35

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and the Shareholders

International Isotopes, Inc.

We have audited the accompanying consolidated balance sheets of International Isotopes, Inc. and subsidiaries as of , and the related consolidated statements of operations, stockholders’ equity, and cash flows for the years then ended. International Isotopes, Inc.’s management is responsible for these financial statements. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion the consolidated financial statements referred to above present fairly, in all material respects, the financial position of International Isotopes, Inc. and subsidiaries as of , and the results of its operations and its cash flows for the years then ended in conformity with accounting principles generally accepted in the United States of America.

/s/ HANSEN, BARNETT & MAXWELL P.C.

Salt Lake City, Utah

March 28, 2013

F-1

INTERNATIONAL ISOTOPES INC. AND SUBSIDIARIES

Consolidated Balance Sheets

See accompanying notes to consolidated financial statements.

F-2

INTERNATIONAL ISOTOPES INC. AND SUBSIDIARIES

Consolidated Statements of Operations

See accompanying notes to consolidated financial statements.

F-3

INTERNATIONAL ISOTOPES INC AND SUBSIDIARIES

Consolidated Statement of Stockholders' Equity

Years ended December 31, 2012 and 2011

See accompanying notes to consolidated financial statements.

F-4

INTERNATIONAL ISOTOPES INC. AND SUBSIDIARIES

Consolidated Statements of Cash Flows