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Paspong Chin Udompong (Khun Jong)
Chanthaburi, Thailand
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1976 Pioneered in Heated Treatment of Rubies.
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1981 Success in heating yellow sapphire from Sri Lanka.
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1996 Presented red rabbit carving made of African red stone weighing 9.5 kgs. to H.M. the King on the occasion of 50th Anniversary on behalf of Chantaburi people.
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1999-2000 President of Gems and Jewelry Club of Chantaburi.
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1999-2003 Deputy Chantaburi Chamber of Commerce, Gems department.
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Special Lecturer Chiangmai, Srinakarintaraviroj, Burapa University
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Advisor AIGS Lab
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2002 Advisor Chantaburi Gems and Jewelry Association.
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2004 President of KuenRakKaewSoo Din Association
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2006 Chairman of Advisory Board Chantaburi Gems and Jewelry Association
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2007 Published “Tam Roy Ploy Chan” .
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