Zeng has engaged in law related work for 24 years and specializes in big pharmaceutical healthy industry. Zeng has extensive and in-depth experience in non-litigation legal services in big bio-pharmaceutical healthy industry, and in ligation matters including those related to major pharmaceutical and medical malpractice damage. Zeng has also represented drug research institute in the second instance in relation to a drug technology transfer contract dispute between the institute and a well-known pharmaceutical company in Wuhan, and represented a medical beauty agency in relation to a contract dispute and several medical malpractice lawsuits. Zeng has also provided legal advisory services to many companies, and handled investment, financing, M&A and other project work and complex disputes of large companies.