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Thongsak Chintakanroek
Chanthaburi, Thailand.
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The committee of evaluating the research of The Gem and Jewelry Institute of Thailand (GIT)
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Expert Gems Manufacturing Co Ltd. Managing Director.
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2006-2007: President of The Federation of Thai Industries of Chantaburi Province.
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Board Committee of The Federation of Thai Industries of Chantaburi Province. Advisor.
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The International Board Directors of The Federation of Thai Industries. Committee Member.
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