Mr Zeng joined one of China's conglomerates, CITIC Group Corporation in 1989 and has spent over 20 years with CITIC Australia. He has played a pivotal role in CITIC's investments in Macarthur Coal Limited and Alumina Limited. In 2014, Mr Zeng was appointed CEO of CITIC Pacific Mining, the developer and operator of CITIC's Sino Iron project, the largest magnetite mining, processing and export operation in Australia. In 2019, he became Chairman and President of CITIC Pacific Limited. Mr Zeng is the Chairman and President of CITIC Pacific Limited, the Chairman and Chief Executive Officer of CITIC Pacific Mining Management Pty Ltd and its holding company, CITIC Mining International Ltd. He also serves as the Chairman of CITIC Australia and Dah Chong Hong Holdings Limited.