The Cross-Harbour Tunnel Company Limited was incorporated with a nominal capital of HK$10 million in 1965.

[6][7] CHHL together with its wholly owned subsidiary hold a 50 per cent stake in Western Harbour Tunnel Company Limited (WHTCL).

In 2008, CHHL acquired a 39.5% effective interest in Tate's Cairn Tunnel Company Limited (TCTC).

TCTC owned the franchise to build and operate the Tate's Cairn Tunnel from 1988 to 2018.

[citation needed] Subsequently, on 13 August 2019, Lanyon outlined a strategy[8] for CHHL to liquidate their securities portfolio, sell the company yacht and return the surplus cash to CHHL shareholders as a special dividend.