Jim Thomp­son (Thai Silk) Co Ltd.

MARIGOT JEW­ELLERY (THAI­LAND) CO.,LTD.

Old­siam laser jew­elry (The Old Siam Plaza)

Thai Gem & Jew­elry Traders Asso­ci­a­tion

WORLD JEMS COL­LEC­TION COM­PANY LIM­ITED