CHMB is a Canadian radio station, broadcasting at 1320 AM in Vancouver, British Columbia. The station airs a Chinese language programming format. CHMB is currently owned and operated by Mainstream Broadcasting Corporation, a British Columbia media company owned and operated by Vancouver businessman James Ho. Mainstream began broadcasting in 1973 as Overseas Chinese Voice (OCV). In 1993, OCV programming was incorporated into the multicultural AM radio station of CHMB AM 1320, serving the needs of Vancouver’s multicultural community.