The maintenance and transition to production of advanced bio-fuel comes in the wake of recent Environmental Protection Agency (EPA) rulings allowing the use of grain sorghum feedstock along with biogas in a combined heat and power system to produce an advanced bio-fuel.

Also, according to the regulations advanced bio-fuels should contain 50% lower carbon content than gasoline.

Commenting on the developments, Aemetis chairman and CEO Eric McAfee stated that the completion of the transition within scheduled time reflects company’s technical capability.

"About $5 million of capital investment and new working capital has been invested since mid-January for maintenance and to enable the plant to produce Advanced Biofuel in a flexible configuration that enables the use of multiple feedstocks and energy sources," added McAfee.

Also, Keyes plant is said to have equipped with an energy-efficient combined heat and power (CHP) system to reduce energy costs and decrease the carbon content of fuel.

"The plant’s location enables both rail and ocean shipping access to advanced biofuel feedstock from lower-cost supply sources," noted McAfee.