Green Island Cement is Hong Kong's only major cement producer. It is a wholly owned subsidiary of Cheung Kong Infrastructure Holdings. History The company was founded in Ilha Verde (meaning "green island") in Macau in 1886 with British investment and was the first concrete manufacturer in the region. It relocated to Hok Un, Hong Kong in 1925 and became a British company shortly afterward. The company had been a major employer for many decades. References External links GIC's website Cement companies of Hong Kong CK Hutchison Holdings Former companies in the Hang Seng Index Companies formerly listed on the Hong Kong Stock Exchange 1978 mergers and acquisitions 1988 mergers and acquisitions