S un Shoukuan is a Chinese steel tycoon and the founder and chairman of the Jiaxin Group. He has built the company into a major private-sector steel producer in China. His career is a classic example of a post-reform era entrepreneur who has built a massive industrial enterprise. His company is a significant player in the Chinese steel market, which is the largest in the world.

In addition to his core steel business, he has also diversified his interests into the shipping and port logistics sectors, which are a natural extension of his industrial base. His wealth is derived from his ownership of the privately held industrial conglomerate he founded. He is a major and influential figure in the Chinese steel industry.