The London Bullion Market Association (LBMA) said it is reviewing allegations involving Indonesian State miner Aneka Tambang (Antam) over the purity of its gold products.
Indonesia's Attorney General Office has named six former general managers at Antam's Precious Metal Processing and Refining Business Unit as suspects for alleged misuse of Antam's stamping service.
Investigators said over the period 2010 to 2021, the suspects oversaw production of around 109 t of gold through the alleged illegal practice.
The investigators did not disclose from where the gold originated or where it was distributed to after stamping.
Aneka Tambang last week denied there were 109 t of counterfeit Antam gold circulating in the community in the period 2010 to 2021.
"All Antam precious metal gold products (are) derived with official certificates, and processed at the only gold processing and refining plant in Indonesia that has been certified by the London Bullion Market Association," the miner said in the May 31 statement.
LBMA, an industry body whose rules for gold refineries include requirements they source gold responsibly, said on Wednesday an Incident Review Process. It added it was difficult to commit to a timeline, given that process involves numerous stakeholders.
Antam did not immediately respond when reached for comments on Thursday.
Aneka Tambang remains on LBMA's Good Delivery List currently, the gold refinery accreditor in London said.