Tin’s Rapid Rally Crashes to a Halt After SHFE Probes Traders

Tin retreated from a record after the Shanghai Futures Exchange announced restrictions on positions for some clients suspected of not properly disclosing their ultimate ownership.

Three groups of clients — numbering sixteen in total — will be subject to one-month limits on opening new positions, as well as curbs on withdrawing funds from both the tin and silver markets, the bourse said in a statement. Tin slumped more than 6% in London, while the action by China’s top commodities exchange prompted other metals including copper to soften.