Mr. Sia Chong Hock has been the Director of Quality Assurance and Senior Consultant of Audit and Licensing at the Singapore Health Sciences Authority (HSA) since 2015, where he was previously the Director of the Audit and Licensing Division in the period 2008 to 2015. From 1995 to 2022, he was also an Adjunct Associate Professor at the Department of Pharmacy and Pharmaceutical Sciences of the National University of Singapore (NUS). He had been a member of the Singapore Pharmacy Council and its predecessor Singapore Pharmacy Board from 2002 to 2018, including being the Chair of its Complaints Panel. He holds a Bachelor’s degree in Pharmacy from NUS, as well as a Master’s degree in Healthcare Management (with Distinction) from the University of Wales, UK. 

In 1997, he took up the challenge to set up the GMP Audit Unit and led Singapore to become the first Asian member of the international Pharmaceutical Inspection Co-operation Scheme (PIC/S) in 2000. Mr. Sia and was subsequently appointed Chair of the ASEAN MRA Task Force and Joint Sectoral Committee on GMP Inspection from 2005 to 2020. In 2013, he was conferred the Industry Pharmacist of the Year Award by the Pharmaceutical Society of Singapore, and in 2016, he was honored with the International Pharmaceutical Society of Pharmaceutical Engineering (ISPE) Singapore Affiliate Lifetime Achievement Award for his contributions to the field of Pharmaceutical Regulatory Practices in Singapore and the ASEAN region. More recently, he was a recipient of the PS (Health) Award 2023 for his key role as a core team member responsible for HSA being the first National Regulatory Authority (NRA) in the world to achieve Maturity Level 4 under the World Health Organization Global Benchmarking Tools (WHO GBT) assessment. This WHO GBT certification confirms HSA as an NRA that is operating at an advanced level of regulation in medicinal products and vaccines. 

On the academic front, he contributes review articles regularly to international scientific journals, covering the regulation of pharmaceuticals and biopharmaceuticals. In 2016 and 2019, two of his articles won the ISPE Roger Sherwood Article of the Year Award.