This report responds to a request from the Technology Assessment Board—the congressional oversight body for the Office of Technology Assessment (OTA)–prompted by the balance-of-trade and other economic implications of these events. The report describes the conditions the domestic and world copper industry faced during the early 1980s. It documents the steps U.S. copper companies took to improve their position so dramatically in the mid-980s, and evaluates the industry’s present and possible future status, including relative costs of production and the elements of those costs.