Ten companies, including Caterpillar Inc, Hyundai Motor America and Krispy Kreme Doughnuts, Inc, have indicated they do not have basic policies or procedures in place to address the risk of human trafficking in their supply chains, according to their statements in compliance with a California law requiring businesses to disclose their efforts to prevent slavery...In its response, Johnson Matthey pointed out that its North America business does have a specific policy on human trafficking and slavery...