American authorities are probing ties between Glencore PLC and an Israeli diamond merchant, according to people familiar with the matter, embroiling the mining giant in foreign and U.S. investigators’ deepening scrutiny of the gem trader.
On Tuesday, London-listed Glencore said it received a subpoena from the U.S. Department of Justice, demanding records related to its compliance with American antibribery and money-laundering laws in the Democratic Republic of Congo, Nigeria and Venezuela.
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