When Japan decided to step up its fight with South Korea last month, it dug deep into the supply chain to impose sanctions on three obscure materials made by a handful of Japanese companies few have ever heard of.

Budget carrier Flyadeal reversed a commitment to buy as many as 50 Boeing 737 Max jets, becoming the first airline to officially drop the plane since its grounding following two deadly crashes.

Over the past two decades, China’s Huawei Technologies has come to dominate the global telecom equipment market, winning contracts with a mix of sophisticated technology and attractive prices. Now, with Huawei at the center of a U.S.-China trade war, the tide is turning.

The world’s largest bulk-chocolate maker is eyeing supply deals in the U.S. as the market consolidates and consumer tastes change.

Beijing’s threat to use its dominance of rare earths in the trade war risks serious disruption to U.S. industry, by starving manufacturers of components commonplace in everything from cars to dishwashers and military equipment.

Most of the tainted drugs originated in India and China, which have become popular sources of generic medications and active-drug ingredients as producers and health-care providers try to hold down costs.