Leighton Asia is an Asia-Pacific construction contractor, a part of the CIMIC Group, an Australian project development and contracting group. Leighton Asia is currently headquartered in Hong Kong, and has been operating in the continent for more than 45 years. Based in Hong Kong, the company also operates in Macau, Singapore, India, Indonesia, the Philippines, Thailand and Malaysia.

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The company's business include building and civil infrastructure construction, Mechanical and electrical works, as well as oil and gas engineering.