Promethean Biofuels and USEI sign biodiesel production agreement
In California, Promethean Biofuels and the US Energy Initiatives Corporation (USEI) have signed a biodiesel production agreement to expand Promethean’s current production to its 2.1 to 3 mgy capacity by next month. The plant, which has been in operation below name plate capacity for the last six years, is expected to bring in $6 million […]














