HPQ Silicon Inc., together with its subsidiaries, provides silica and silicon-based solutions in Canada. It is also developing a portfolio of silicon and silica products primarily for battery and electric vehicle manufacturers, and hydrogen applications; and carbon particles for capacitor applications. In addition, the company engages in developing the PUREVAP Quartz Reduction Reactors, a process to transform quartz into silicon metal; and the PUREVAP Nano Silicon Reactors, a process to make the nano silicon materials from silicon chunks. Further, it is involved in developing a plasma-based process that allows direct quartz to fumed silica transformation; and planning and construction of a micron-sized silicon-based battery material production line. The company was formerly known as HPQ-Silicon Resources Inc. and changed its name to HPQ Silicon Inc. in July 2022. HPQ Silicon Inc. was incorporated in 1996 and is headquartered in Montreal, Canada.