Bien is a dedicated professional with extensive experience in sustainability strategy development, corporate communications, and investor relations. As the head of Group ESG, he oversees the integration of sustainability concepts into business strategies, ensuring compliance with stringent international sustainability standards. He has a proven track record at global firms and companies listed on The Stock Exchange of Hong Kong, specialising in corporate compliance and the disclosure of environmental, social, and governance (ESG) policies.

In addition to his professional responsibilities, Bien is actively engaged in public service, focusing on sustainable finance, social impact investment, and corporate governance. He serves on multiple advisory committees for the HKSAR Government and academic institutions. Furthermore, he is a Board Governor for various green organisations and professional associations, advocating for sustainable practices and environmental stewardship. Bien has also shared his expertise as an Adjunct Associate Professor at Hong Kong Baptist University, where he taught courses in sustainability.