Career
Zhu Zhengrong joined the Genbao Football Academy in 2000. He left the academy to join China League Two club Shanghai Weirun in May 2004 and returned to academy in December 2005. He was promoted to Shanghai East Asia"s first team for the 2006 season.
Zhu played as a regular starter at the striker position and scored nine goals as Shanghai was promoted to the second tier in the 2007 season.