1. In 1991, Attington Investment Limited, the predecessor of CMHI, was incorporated in Hong Kong.
2. In 1992, Attington Investment Limited changed its name to Sea Rainbow Group Limited, which was mainly engaged in the paint manufacturing business.
3. In 1992, Sea Rainbow Group Limited was listed on the Hong Kong Stock Exchange, becoming the first red-chip company to be listed in Hong Kong.
4. In 1994, Sea Rainbow Group Ltd. acquired Ming Wah (Universal) Shipping Incorporation, moving from a pure paint business to shipping and other industrial manufacturing businesses.
5. In 1994, Sea Rainbow Group Limited changed its name to China Merchants Sea Rainbow Group Limited.
6. In 1997, it acquired five highways in mainland China and became an investor and operator of toll roads.
7. In 1997, the company acquired 23.73% of the shares of China International Marine Containers (Group) Company Limited, and began to expand into the field of port investment.
8. In 1997, the company was renamed China Merchants International Co.
9. In 2003, it became a listed company focusing on ports and port-related businesses, and changed from an investment company to an investment management company.
10. 2004, sold its tanker fleet and separated from the shipping business.
11. 2004, promoted to Hang Seng Index constituent stock.
12, 2005, CMHI basically completed the strategic layout of building China's container hub port network.
13, 2009, "Sea Rainbow Old Man Brand Coatings equity transfer ceremony" held in the headquarters of China Merchants Group in Hong Kong, China Merchants International to the Danish old man brand to sell the 64% stake in the Sea Rainbow Old Man Brand Coatings transaction was formally completed.