Purebase Receives ASTM Certification for New HP-SCM

Purebase Receives ASTM Certification for New HP-SCM Has Technical Ability To Replace up to 40% of Cement IONE, CA, October 23rd, 2020 (GLOBE NEWSWIRE) — Purebase Corporation (OTCQB: PUBC), a diversified resource company, headquartered in Ione, California, today...