Almost 70 companies publicly traded on U.S. stock markets have found North Korean gold in their manufacturing supply chains.

Among the more prominent names are electronics companies IBM, HP, Garmin, Philips and Seagate, U.S. kitchenware retailer Willams Sonoma.

The discoveries were disclosed in reports to the U.S. Securities and Exchange Commission that are the result of a new law that mandates companies audit their suppliers and identify sources of so-called conflict minerals: gold, tin, tungsten and tantalum.

The companies all named North Korea’s central bank as the source of some gold that made its way into their products.

Gold sourced from North Korea is identified in an IBM More >