The Trump administration's tariffs won't extend to refined copper, and that disappointed speculators recently.The share price of America's leading copper company, Freeport-McMoRan (FCX 0.87%) has been volatile recently, even falling sharply at the end of July after the Trump administration's tariff actions left copper speculators disappointed. However, the stock has recovered since then, and there's likely more to come for long-term investors. Here's why. A complicated copper market in 2025Copper speculator ...