International Isotopes Inc. Announces Year End Financi...( Company Shows A 5% Increase I...),Health

Company Shows A 5% Increase In Total Revenue To $4.7 Million

IDAHO FALLS, Idaho, March 28 /PRNewswire-FirstCall/ -- International Isotopes Inc. (OTC Bulletin Board: INIS) announces the financial results for fiscal year ended December 31, 2007.

Total revenue in 2007 was $4,690,588 compared to $4,469,538 in 2006, which represents an increase of $221,050 or 5%. The overall increase in revenue was affected to a great extent by an 11% reduction in Cobalt product revenue in 2007 compared to 2006 that was due primarily to normal cyclical fluctuations in bulk cobalt sales. These fluctuations cause large variations in the revenue that impacts period to period comparisons. Excluding cobalt product sales, revenue for the year ended December 31, 2007 was $3,625,861 as compared to $3,277,514 for the same period in 2006, which represents an increase of $348,347 or 11%. Because of the significant impact of the timing of cobalt product sales, management believes excluding sales of cobalt products from the period comparisons of revenue provides useful information to investors and may provide a more accurate projection of our actual revenue growth trends. Please refer to the tables below for a further analysis of this measure and a year to year comparison of the individual business segments.

Business Segment Area 2006 2007 Percent Change

Nuclear Medicine Products $1,684,727 $1,819,049 8%

Radiochemical Products $844,014 $1,062,477 26%

Cobalt Products $1,192,024 $1,064,727 (11%)

Radiological Services $641,411 $590,160 (8%)

Total Revenue $4,469,538 $4,690,588 5%

Total Revenue Excluding

Cobalt Products $3,277,514 $3,625,861 11%

Cost of revenue for 2007, was $2,660,781 compared to $2,462,715 in 2006, an increase of $198,066 or
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