信和集團
Due to his business positions, Ng wields a significant amount of power under Hong Kong's functional constituency system. In 1998, he and companies owned by Sino Group controlled roughly 3–4% of the votes in the real estate constituency, and an additional two votes in the tourism constituency. The voting power he wields through this system has been described as equivalent to anywhere from 6,100 to 15,940 votes in geographic constituencies, which has led to criticism by the "Hong Kong Human Rights Monitor".