Ms Cheng has been Permanent Secretary for the Environment and Director of Environmental Protection since 2 May 2019.
Ms Cheng joined the Administrative Service in September 1987 and rose to the rank of Administrative Officer Staff Grade A in April 2015. She has served in various bureaux and departments. Her recent postings included Deputy Secretary for Transport and Housing (Transport) from February 2010 to June 2012, Director of Government Logistics from January 2013 to September 2015, and Director of Marine from September 2015 to April 2019.
- To head the Environmental Protection Department
Permanent Secretary for the Environment / Director of Environmental Protection