 HPQ Silicon Resources Inc., through its wholly owned subsidiary HPQ Nano Silicon Powders Inc., updated shareholders on advancements of the Purevap nano silicon reactor NSiR development project led by technology provider PyroGenesis Canada Inc. TSX:PYR As expected with ground-breaking research and development projects, the PyroGenesis engineering team continues to resolve design and process issues encountered during Phase 1 of the Purevap NSiR development program. As testing progressed during the second half of 2021, the challenge for the team became eliminating oxygen from the final product of nano-silicon material. 