Mr. Wong Kong Chi, aged 52, has been an independent non-executive director of the Group since 1993. He is a fellow member of the Association of Chartered Certified Accountants and a certified public accountant of the Hong Kong Institute of Certified Public Accountants. Mr. Wong retired in 1993 after working in the merchant banking industry for over 10 years. He is also an independent non-executive director of Kee Shing (Holdings) Limited, a company listed on The Stock Exchange of Hong Kong Limited.

Mr. Ip Chi Shing, Tony, aged 63, is the co-founder and the non-executive chairman of the Group. Mr. Ip has over 30 years of experience in the manufacture of and trading in petrochemical products. He is the brother of Mr. Yip Tsz Hin, Stephen, deputy chairmen and executive directors of the Group. In 2006, Mr. Ip established "Ip Chi Shing Foundation" with the objectives of fostering education in China and providing care for the underprivileged groups in Hong Kong.

Mr. Tong Wui Tung, Ronald, aged 60, was elected as an independent non-executive director of the Group since 1993 and was re-designated as a non-executive director of the Group in 2004. Mr. Tong is a partner of the law firm, Messrs. Cheung, Tong & Rosa, legal advisers of the Group on Hong Kong Law which receives usual professional fees in connection with services rendered to the Group. Mr. Tong has been practising as a solicitor in Hong Kong for over 30 years and is also an independent non-executive director of Country Garden Holdings Company Limited, a company listed on The Stock Exchange of Hong Kong Limited.

Mr. Ng Siu Ping, George, aged 53. Mr. Ng was appointed as an executive director of the Company in 1992. Mr. Ng obtained a Higher Diploma in Accountancy from the Hong Kong Polytechnic (now known as the Hong Kong Polytechnic University) in 1980. He is a fellow member of the Association of Chartered Certified Accountants and a certified public accountant of the Hong Kong Institute of Certified Public Accountants. He joined the Group in 1991 and has over 30 years of experience in the field of auditing and accounting. Mr. Ng retired as an Executive Director of the Company and was re-designated as a Non-Executive Director in July 2011.

Mr. Au-Yeung Tsan Pong, Davie, aged 64, has been an independent non-executive director of the Group since 2004. Mr. Au-yeung graduated from the Hong Kong Polytechnic (now known as the Hong Kong Polytechnic University) in 1974. He is a fellow member of the Hong Kong Institute of Directors. Mr. Au-Yeung has extensive experience in management, having held senior executive appointments in the tertiary education field and the service industry for over 30 years. He is the treasurer of a charitable organization which raises funds and advocates for the well-being of children. He is also Honorary Secretary of the Hong Kong Anti Cancer Society.

Mr. Li Chak Man, Chuck, aged 63, has been an independent nonexecutive director of the Group since 2004. Mr. Li graduated from Texas A&M University with a Master Degree in Statistics in 1973. Mr. Li retired in 2004 after having worked in the petrochemical industry for over 25 years accumulating extensive experience in logistics, procurement, management, personnel and administration. He was a representative to the Association of International Chemical Manufacturers in the 90's to promote safety distribution of hazardous chemicals. Mr. Li does not hold any directorship in other listed companies.

Mr. Ku Yuen Fun, Andy, aged 58, has been an independent nonexecutive director of the Group since 2008. Mr. Ku graduated from the Hong Kong Polytechnic (now known as the Hong Kong Polytechnic University) and began his career at Shell Chemicals. Mr. Ku has extensive managerial experience in the oil & petrochemical industries in the Greater China region. He was a Director of Shell Hong Kong Limited, a Board Director of the Business Environment Council and the Chairman of Tianjin International Petroleum Storage and Transportation Company Limited. Mr. Ku does not hold any directorship in other listed companies.