 IONE, CA, March 22, 2021 GLOBE NEWSWIRE -- Purebase Corporation OTCQB:PUBC, Purebase or the Company, a diversified resource company, headquartered in Ione, California, announced today that it has received an additional financing commitment of up to 2,000,000 from its largest shareholder, US Mine Corp. USMC, a privately held mining and exploration company, of which certain owners also serve on the Companys board of directors. 