The Commodity Futures Trading Commission (CFTC) was set up in 1974 to regulate commodity futures and option markets in the US. The independent agency's mandate has been renewed and expanded several times since then, most recently by the Dodd-Frank Wall Street Reform and Consumer Protection Act.

After years of complaints from end-users such as Coca-Cola, regulators are now taking a deeper look into the metal warehousing industry. Photo: SCMP

Metals traders told not to delete files

The US commodities market regulator has put Wall Street banks and other big traders on notice for a possible investigation of their metals warehousing businesses following years of complaints about inflated prices.