class="YtLlr aHS+3 V-v0y fm7dv _8teMo _5pKBM" data-component="Text">Four Corners has uncovered documents charting the WA government-owned mint's decision to begin "doping" its gold in 2018, and then how it withheld evidence from its largest client in an effort to protect its reputation. Perth Mint confirmed it did receive a customer complaint about a small number of 1kg gold bars but that, "due to Chinese government restrictions on exporting gold from China, the customer did not return the bars … and therefore the customer's concerns could not be verified". The other headache for the mint is an ongoing investigation by financial crime regulator, AUSTRAC, into its compliance with Australia's anti-money-laundering laws