CHMB is a Canadian AM radio station, broadcasting from Vancouver, British Columbia on 1320 kHz. The station airs a Chinese language programming format. CHMB's studios are located on Marine Drive in the Marpole neighbourhood of Vancouver, while its transmitters are located on Lulu Island near Richmond.
CHMB and CJMR are the only stations in Canada which broadcast on 1320 kHz.
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.
In 2015, Reuters reported that CHMB broadcasts content controlled by G&E Studio Inc, near Los Angeles, California. In turn, G&E is 60% owned by Guoguang Century — a Beijing firm that is wholly owned by China Radio International (CRI), the state-owned international radio broadcaster of the People's Republic of China (PRC). G&E also broadcasts content nearly full-time on at least 15 U.S. stations. In addition to distributing CRI programming, G&E produces and distributes original Beijing-friendly shows from its California studios. Mr. Ho appears as a "Representative" with a reference to his Mainstream Broadcasting Corp. on a CRI web site.