AB Builders Group Limited (1615.HK) is an investment holding company principally engaged in providing construction services, including fitting-out works and structural works such as foundation works, basement works, piling, and pile cap works; sales of air purification units and systems; sales of construction materials; and financial services encompassing securities advisory (SFC Type 4 license) and asset management (SFC Type 9 license), primarily serving hotel and casino owners, property developers, government entities, and main contractors in Macau, Hong Kong, and the People's Republic of China. Founded in 1998 and headquartered at 10th Floor, Edf. Comercial I Tak, No. 126 Rua de Pequim, Macau, the company operates through subsidiaries like San Fong Seng Construction & Engineering Company Limited in Macau and Lap Polly Engineering Company Limited in Hong Kong. In a key strategic development, it completed the acquisition of a Hong Kong-incorporated SFC-licensed brokerage firm, Delphinium Capital Partners, for HK$1.9 million during the first half of 2025, marking its entry into financial services and business diversification; it also launched construction materials trading in 2025, contributing initial revenue, while reporting revenue of MOP170.8 million for the six months ended June 30, 2025, up 190% year-over-year, driven by fitting-out works and new segments.