- March 17, 2012, Tan Cang Marine Services Joint Stock Company (TCO) was officially established with the initial charter capital of VND 91,500,000,000;
- September 7, 2012, Increased the charter capital to VND150,000,000,000.
- June 13, 2015, Increased the charter capital to VND250,000,000,000 VND.
- April 27, 2016, Increased the charter capital to VND 265,000,000,000.
- December 15, 2020, Approved to become a public company according to Official Letter No. 7342/UBCK-GSÐC.
- April 28, 2021, Officially granted the Certificate of Securities Registration by the Vietnam Securities Depository Center. The number of registered securities is 26,500,000 shares with the Ticker TOS.
- September 8, 2021, Traded on Upcom market.
