Carotech has embarked on its full production activities via its unique extraction process that is protected through US Patent No: 5,157,132 (1992). Unlike typical biodiesel producers who produce unprocessed methyl ester which is later sold as biodiesel, Carotech has taken a step further via the patented molecular distillation process, to commercially extract valuable phytonutrients, specifically the Tocotrienol Complex (Tocomin®), Mixed Carotene Complex (Caromin®) and Phytosterol (Stelessterol) in the patented process.

With the patented process, Carotech produces refined and molecularly-distilled palm methyl ester (CaroDiesel™) and crude glycerine since 1995. CaroDiesel™ is the only refined and molecularly-distilled palm methyl ester in Malaysia.