Dr. Cheng Ngok, aged 63, was appointed as an independent non-executive Director on 3 June 2003 and the chairman of the audit committee of the Company on 25 June 2004. 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 PH.D degree (Doctor of Biomedical Science) from Catholic University of Leuven, Belgium in 1978, 1983 and 1984 respectively. After graduation, Dr. Cheng worked as an Orthopaedic Surgeon in Europe between 1978 and 1984. From 1985 to 1986, he retuned to Hong Kong and took up the position of a lecturer in the Department of Orthopaedic and Traumatology in the Chinese University of Hong Kong. Dr. Cheng has been a member of the Hospital Governing Committee of Alice Ho Miu Ling Nethersole Hospital from April 2002 to March 2004 and a member of the Cluster Tender Board in New Territories East Cluster, Hospital Authority in 2003. In addition, Dr. Cheng is also a medical practitioner in Hong Kong and holds directorship in two private companies engaging in medical diagnostic laboratory and manufacturing of medical equipments and devices.

Mr. Choi Hon Ting, Derek, aged 40, 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 45, was appointed as an independent non-executive Director on 23 June 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 21 years of international working experience in accounting, financial planning and control, business development, logistic, project management and contract administration in various industries. Mr. Wu currently works in an international trust company. Prior to that, he had been a financial controller and company secretary for UDL Holdings Limited, a company listed on the Main Board, and the chief financial officer and company secretary of Innovis Holdings Limited, a company listed on the Growth Enterprise Market of the Stock Exchange. Mr. Wu also used to be a project director of a private engineering and construction company in Hong Kong and served there for seven years. Before that, he worked for a private trading company, an international architectural and interior consultancy firm and a manufacturing company for a total of nine years principally responsible for financial controlling and business development.