On March 14, 2007, representatives of the Thai Gem and Jewelry Traders Association (TGJTA) and Japan Jewelry Association (JJA) announced an agreement regarding the disclosure of beryllium (Be) treatments in corundum. Other signatories were the Thai Department of Export Promotion (DEP) of the Thai Ministry of Commerce; the Gem and Jewelry Institute of Thailand (GIT); and the Chanthaburi Gem and Jewelry Traders Association (CGA).
The memorandum states that exporters of loose corundum must disclose the treatment on invoices using the following terminology:
Non- Be-Treated
Be Treated
Unconfirmed Be Treatment
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