- November 15, 1977: Established as Construction Company No 9
- November 20, 1995: Became a member of Vietnam Construction and Import-Export Joint Stock Corporation (Vinaconex)
- November 04, 2004: Equitized and renamed as Construction Joint Stock Company No 9 with the initial charter capital of VND21 billion
- July 14, 2008: Increased the charter capital to VND80 billion
- November 05, 2009: Officially traded on Hanoi Stock Exchange (HNX).
- April 2011: Increased the charter capital to VND120 billion