Fatty acid methyl ester (FAME) has emerged as a vital bio-based chemical with significant environmental and economic benefits. Commonly known as biodiesel, FAME is produced through the transesterification of natural oils or fats—such as soybean, palm, canola, or animal fats—with methanol in the presence of a catalyst. The result is a biodegradable, renewable, and clean-burning fuel alternative that serves as a direct substitute or blend for conventional diesel. Beyond fuel applications, FAME also plays a crucial role in various industrial sectors, including lubricants, coatings, and surfactants.