This document discusses the potential for using rice hulls as a source of biosilica. It summarizes a process developed by ChK Group to convert rice hulls into high-purity biosilica and generate process heat and power. Biosilica has various applications as a renewable cementitious material and pozzolan additive for high-performance concrete, and it can also be used to produce zeolites. The document outlines plans to commercialize the ChK process and use of biosilica.