- From 1907 to 1955: Originated from coal mine of French owners;
- From 1955 to 1960: Belonged to Cam Pha mine;
- March 1960: Changed to Hon Gai Coal Company;
- August 1, 1960: Established Coc Sau Coal enterprise;
- September 2001: Renamed as Coc Sau Coal Company;
- January 2, 2007: Changing to TKV - Coc Sau Coal Joint Stock Company with the chartered capital of VND100 billion;
- June 26, 2008: Listed on HNX;
- October 12, 2011: Increased charter capital to VND129.98 billion.
- August 17, 2016: Renamed as Vinacomin - Coc Sau Coal Joint Stock Company.
- 2016: Increased charter capital to VND324.96 billion.