The United States, Japan and France are urging their businesses to depend less on China to make smartphones, drugs, and many other products. But few companies appear to want to leave China’s skilled workforce and suppliers of unprocessed materials to move to other countries. Too much dependence on China leaves global companies open to costly problems during major world crises. The spread of the new coronavirus is one example. Also, the U.S. and China have been locked in a trade war for several years. Both countries have raised taxes on the goods they exchange. Drug makers are one group that is trying to reduce dependence on Chinese suppliers. The industry is establishing sources of unprocessed materials in the U.S. and Europe. But the medical device, consumer electronics and other industries are continuing to depend on China.