Dr. Cheng Ngok, aged 65, is an independent non-executive director, the chairman of the audit committee and a member of the remuneration committee of the Company. He joined the Group in 2003. Dr. Cheng graduated from the National Taiwan University with a Bachelor of Science degree in Medical Technology in 1970 and then obtained a Doctor degree of Medicine, Surgery and Obstetrics, a Diploma certification in Orthopaedic Surgery and a PhD degree (Doctor of Biomedical Science) from Catholic University of Leuven, Belgium in 1978, 1983 and 1984 respectively. After graduation, he worked as an Orthopaedic Surgeon in Europe between 1978 and 1984. Then, he returned to Hong Kong and took up the position of a lecturer in the Department of Orthopaedics and Traumatology in The Chinese University of Hong Kong until 1986. Dr. Cheng had been a member of the Hospital Governing Committee of Alice Ho Miu Ling Nethersole Hospital from April 1997 to March 2009 and had been a member of the Cluster Tender Board in New Territories East Cluster, Hospital Authority from 2003 to 2010. In addition, he is also a medical practitioner in Hong Kong and holds directorship in two private companies engaging in medical diagnostic laboratory and manufacturing of medical devices.

Mr. Choi Hon Ting, Derek, aged 43, was appointed as an independent non-executive Director on 23 June 2004. Mr. Choi graduated from Purdue University in the US with a Bachelor degree in Engineering in Food Processing in 1991. After graduation, Mr. Choi worked as project manager, deputy general manager and executive director of Balama Prima Engineering Company Limited which business included highway construction, underground construction and environmental engineering. Since 1996, Mr. Choi has been a director of C&C Technology Inc. which is a company listed on the Toronto Stock Exchange. Mr. Choi was also a former vice-chairman, chairman and executive secretary of the China Hong Kong Society for Trenchless Technology. Mr. Choi elected as executive sub-committee member of International Society for Trenchless Technology in 2004.

Mr. Wu Karl Kwok, aged 48, is an independent non-executive director and a member of both the audit committee and remuneration committee of the Company. He joined the Group in 2004. Mr. Wu holds a Bachelor of Arts degree in business administration from the University of Washington and is a Certified Public Accountant (USA). He has over 26 years of international working experience in accounting, financial planning and control, business development, logistic, project management and contract administration in various industries. Mr. Wu is currently the managing director of an international pharmaceutical company. Prior to that, he was a senior consultant and vice president of an international trust company for six years. Mr. Wu other past roles include financial controller and company secretary for UDL Holdings Limited, a company listed on the Main Board of the Stock Exchange, and the chief financial officer and company secretary of Innovis Holdings Limited (currently known as Sino Haijing Holdings Limited), a company listed on the Growth Enterprise Market of the Stock Exchange.

Mr. Nguyen, Van Tu Peter, age 68, was appointed as an independent non-executive director of the Company on 1 January 2011. He is a senior counsel and was called to the Bar in England by the Honourable Society of the Middle Temple in 1970. He was an assistant crown counsel and crown counsel in the Legal Department of Hong Kong during the period from August 1970 to November 1974 and after leaving Government service was in private practice as a Barrister in Hong Kong for approximately twenty years. Mr. Nguyen was appointed as Director of Public Prosecutions in the Legal Department of Hong Kong during the period from July 1994 to October 1997 and he was the first and only Chinese to hold such position. Mr. Nguyen was appointed as a Queen’s Counsel in 1995 and was a Judge of the Court of First Instance of the High Court, Hong Kong from February 1998 to April 2009. Currently, Mr. Nguyen is an independent non-executive director of Mayer Holdings Limited (a company listed on the Main Board of the Stock Exchange, stock code: 1116). He also has been appointed as an independent non-executive director of Combest Holdings Limited (a company listed on the Growth Enterprise Market of the Stock Exchange, stock code: 8190) in March 2011.