King's Stone Holdings Group Limited is an investment holding company principally engaged as a subcontractor providing construction services to public and private sector clients in Hong Kong. The company offers formwork services including traditional formwork using timber and plywood; system formwork using aluminium and steel; ancillary works such as concrete works, reinforcement works, reinforcement bar fixing, and concrete placing; plastering; additions and alterations works; and other miscellaneous construction activities. It also engages in securities dealing and broking through a separate segment. Founded in 1990 with roots originating from Hop Fat Yuk Ying Engineering Limited—initially focused on structural steel works before shifting to formwork in 1998—the company is headquartered in Wan Chai, Hong Kong, and operates exclusively in that market serving leading contractors whose projects involve government and statutory bodies. In September 2024, the company changed its name from Silver Tide Holdings Limited to King's Stone Holdings Group Limited; in March 2025, Jianeng Era International Trading Co., Limited acquired 75% of its issued share capital, establishing it as a subsidiary and triggering a mandatory cash offer; and in September 2025, it announced a share placing to raise approximately HK$92.55 million gross proceeds, earmarking around HK$67 million for integrating intelligent, green, low-carbon technologies including electronic components, smart infrastructure, Internet of Things systems, drone-based security, smart energy management, user-side industrial energy storage, remote monitoring, smart maintenance, virtual power plants, and demand response programs to upgrade new construction industrial parks and expand into emerging markets like smart buildings and high-end industrial parks.