Dominic Yin has taken nearly a lifetime to find his true calling. The former industrialist and entrepreneur, 66, now describes himself as an environmental evangelist.
He handed over the control of his companies to his son, Benjamin, in 2000, and in the past seven years, he has attended close to 200 conferences, seminars, panels and other environmental-related discussion groups - all funded from his own pocket.
Mr Yin began his working life at the Dah Chung Industrial Company, a manufacturing firm, in 1966. On returning to Hong Kong from Taiwan in the 1980s, he established trading and investment company Trigo Enterprises and was active in a number of other businesses in Hong Kong, Taiwan and on the mainland. Since 2000, he has formed a number of environmentally focused companies.
This journey, he defends China against US politicians who question the emerging superpower's commitment towards tackling its environmental problems. On the other side, despite being a member of the Chinese People's Political Consultative Committee, he is still just as comfortable standing up to top party officials who are standing in the way of environmental progress on the mainland.
Mr Yin has just established the Hong Kong Association of Energy Services Companies (Haesco), a collection of businessmen, engineers and other professionals and concerned citizens determined to improve energy efficiency and protect the environment.
The long-term goal of the group is to bring the 'blue skies back to Hong Kong', but they are focused on bringing their experience to help find clean production solutions and energy efficiency projects. The organisation's backers believe it will be able to offer solutions to companies and governments who want help in becoming sustainable and energy efficient.