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William Ellwood Heinecke (born 1949) is a businessman in Thailand. He is the CEO and Chairman of Minor Corporation, the CEO and Chairman of Minor International, and Chairman of Minor Food Group.
Born in 1949, Heinecke moved to Bangkok in 1963 with his family, having previously been based in Japan, Hong Kong and Malaysia. His father served for 25 years in the US military, through two wars, and later joined the foreign service. His mother worked as an Asia correspondent for Time magazine. Heinecke became a student at the International School Bangkok and persuaded the editor of Bangkok World to let him write a weekly column on go-carting, in exchange for the advertisement space alongside.
At the age of 17, Heinecke took over from the Bangkok World's advertising manager while still attending high school. By the time he graduated a year later, he had founded Inter-Asian Enterprise to supply office cleaning services, and Inter-Asian Publicity, a radio advertising company, with around US$1,200 he had borrowed. The latter he later sold off to Ogilvy & Mather and, in 1967, founded Minor Holdings that would grow into The Minor Group over the next four decades, spanning more than 30 companies. In 1968, Heinecke married his high school sweetheart Kathy and went on to have two children with her.
Heinecke had his first hotel venture in 1978, the Royal Garden Resort in Pattaya. His business ventures have included advertising agencies and other hotels in Bangkok, Hua Hin, Phuket, Chiang Mai, Chiang Rai as well as outside of Thailand. He also introduced American-style fast foods to Thailand in the late 1970s and 1980s – brands like Mister Donut, The Pizza Company and Burger King. Heinecke naturalized as a Thai citizen in 1991, renouncing United States citizenship in the process. He was the president of the American Chamber of Commerce in Thailand and sat on the Prime Minister’s Foreign Investment Advisory Council. He is a supporter of the Thai Elephant Conservation Centre. He authored The Entrepreneur, which has been translated into a number of languages.
Minor International 
Minor International Plc is one of the largest hospitality and leisure companies in the Asia Pacific region. The company's hotels and resorts are operated under the Four Seasons, Marriott Resort & Spa, Anantara and other brands in Thailand, Vietnam, the Maldives, the Middle East and Indonesia, and its spa brands like Mandara and Anantara have consistently been named among the best in the world. Minor Corporation manufactures and markets a portfolio of fashion, cosmetics and leisure brands, while Minor International currently operates 16 hotels and resorts and more than 630 branded food service outlets across Asia and the Middle East.
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