HPQ Silicon Resources Inc. announced that HPQ and technology provider PyroGenesis Canada Inc. have signed a non-disclosure agreement with a for the purposes of preparing 4N silicon (Si) material samples. HPQ will make the dedicated samples using material produced by the PUREVAP™ Quartz Reduction Reactor (QRR) pilot plant, which is scheduled to start at the end of first quarter . For industry competitive reasons and in accordance with terms of the NDA, the identity of the HPMC and other parties involved must remain confidential, however HPQ can divulge that the 4N Silicon material will be tested for usage as potential feedstock for the manufacturing of silicon nitride (Si3N4) ceramics.