Ms Yau joined the Administrative Service of the Hong Kong Government in 1996 and served in various bureaus and departments. She joined the Occupational Safety and Health Council (OSHC) as the Executive Director in 2014. Ms Yau was elected as the Vice-Chair of the “International Section on Prevention in Trade Goods Logistics and Port Handling” of the International Social Security Association from 2019. OSHC was established in 1988 by the Hong Kong Government for raising the occupational safety and health standards in Hong Kong. Under Ms Yau’s leadership, OSHC has thrived in many areas through promotion, education and training, research, information dissemination and consultancy services.