Build King Holdings Limited is an investment holding company principally engaged in building construction and civil engineering works in Hong Kong and the People's Republic of China. The company undertakes a comprehensive range of construction services across three major areas including civil engineering such as site formation, roads and bridges, drainage and waterworks, marine works, railways and associated works, tunnels, and structural steel works; building construction encompassing institutional, residential, commercial, and school projects; and environmental projects comprising landscaping, parks, and sportgrounds. It provides full project lifecycle services from design and construction to testing and commissioning, maintenance, facility management, and operation, with projects primarily in the public and private sectors of Hong Kong and selective markets in Mainland China. Founded in 1980 and headquartered at Units 601-605A, 6th Floor, Tower B, Manulife Financial Centre, 223 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong, the company employs over 3,700 staff and maintains a strong track record of high-value contracts exceeding billions of Hong Kong dollars. In late 2025, Build King entered into the 2026 Framework Agreement with Wai Kee Holdings Limited, renewing terms for the continuing purchase of ready-mixed concrete from Wai Kee and its associates for the group's civil and building projects through 2028, with proposed annual caps reflecting an expected contract sum backlog of approximately HK$14 billion for civil works and HK$16.5 billion for building projects. The company also maintains ongoing involvement in major infrastructure initiatives such as the Central Kowloon Route, Shatin to Central Link, and Tung Chung New Town Extension, alongside recent award-winning projects including Kwu Tung North New Development Area site formation works.