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$GEVO Gevo, Inc. (NASDAQ:GEVO), that ASTM International has now completed its process of approving the revision of ASTM D7566 (Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons) to include alcohol to jet synthetic paraffinic kerosene (ATJ-SPK) derived from renewable isobutanol. As previously announced on March 28, 2016, the proposed revision passed on the committee ballots, but ASTM still needed to complete the Society Review, perform a final ballot tally, and publish the new specification. The ASTM process is now completed in all respects.

As a result, ASTM International has published the revision of ASTM D7566 (Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons) on its website (http://www.astm.org/Standards/D7566.htm) and Gevo's renewable alcohol to jet fuel ("ATJ") is now eligible to be used as a blending component in standard Jet A-1 for commercial airline use in the United States and in many other countries around the globe. Gevo's ATJ is eligible to be used for up to a 30% blend in conventional jet fuel for commercial flights.

"We have been eagerly awaiting the completion of the ASTM approval process. With this significant milestone achieved, we look forward to making the first test flight with Alaska Airlines a reality. We fundamentally believe that our ATJ is one of the most cost competitive bio-based jet alternatives in the market place, and we anticipate being able to announce further partnerships across the aviation industry in the near future. Jet fuel is one of Gevo's core market segments and this ASTM revision represents the next step in building a profitable business from this market vertical," said Dr. Patrick Gruber, Gevo's Chief Executive Officer.