Sun Kong Holdings Limited sells diesel oil and diesel exhaust fluid in Hong Kong. Its services include sourcing diesel oil through oil trading companies, dispatching a fleet of diesel tank wagons to collect diesel oil from oil depots, and delivering it to customers. It also provides ancillary transportation services to an Oil Major, transporting diesel oil to that customer's clients. The company was formerly known as Yufengchang Holdings Limited and changed its name to Sun Kong Holdings Limited in February 2025. Founded in 2002, it is headquartered in Yuen Long, Hong Kong.