Palm Kernel Shell (PKS) is a hard, fibrous material that surrounds the kernel of the oil palm fruit. It is a byproduct of the palm oil extraction process, specifically from the cracking of palm kernels. PKS is highly valued as a renewable and sustainable biomass fuel due to its high calorific value, low ash content, and relatively low emissions when burned. It is commonly used in energy production, particularly in biomass power plants and as a biofuel in industrial boilers. Additionally, PKS has applications in carbon production, such as activated carbon for water filtration and purification. Its utilization helps promote waste minimization in the palm oil industry.