Ng Siu Hung were managers of several ancestral tursts. He was a key person of clan affairs. Duties of a manager include looking after the ancestral trust on a voluntary basis on an unfixed term that can be served for life. The main ancestral trusts of Nga Tsin Wai’s Ng Clan include Ng Shing Tat Tso, Ng Yat Un Tso and Ng Wai Wing Tso, all of which Ng Siu Hung simultaneously represented as Manager. Ancestors after the 18th generation were seen as being family ancestors. Ng Siu Hung is a descendant of the 19th generation of Ng Hon Ko Tso, but as he had already taken up several posts, he did not serve as the Manager of Ng Hon Ko Tso. Each trust’s workload depended on how many properties it owned. As the chief ancestral trust, Ng Shing Tat Tso oversees the Ng Clan Ancestral Hall and Chi Tak Public School. Ng Yat Un Tso owns many properties, having four units in Fung Wong Chuen, the rents on which its Manager is responsible for collecting.