His company, Portland Mint, sells old pennies in bulk — 40,000 pounds (18,100 kilograms) at a time — to investors angling to profit on the copper that makes up 95% of the coins minted before 1983. A cache of one-cent pieces from Portland Mint with a face value of roughly $60,

Metals including aluminum and copper declined as moves by US President Donald Trump to restrict Chinese investments undermined market sentiment, with raw materials losing ground along with local equities.

China's growing copper reserves have caught the eye of President Donald Trump, who on Tuesday ordered an investigation into what administration officials say is Beijing's move to "gain control of the world's copper markets.

Most copper mined in the U.S. comes from Arizona - but President Donald Trump’s surprise announcement that he will halt production of pennies won’t make a dent in the state’s mining industry, as nearly all of the metal used has been zinc since 1982.

To search for the Company’s financial statements, enter the following parameters in the empty fields: Empresa: Sociedad Minera Corona S.A. Sierra Metals is a Canadian mining company focused on copper production with additional base and precious metals by-product credits at its Yauricocha Mine in Peru and Bolivar Mine in Mexico.

President Donald Trump took to his Truth Social platform on Tuesday to propose tariffs on yet another critical raw material needed in U.S. industry."Like our Steel and Aluminum Industries, our Great American Copper Industry has been decimated by global actors attacking our domestic production,

Donald Trump ordered an investigation Tuesday into possible levies on US copper imports, with officials citing a need to rebuild domestic production and safeguard national security — the latest salvo of the president’s tariff threats.

A Trump administration investigation into copper imports has led to an after-hours rise of 20 cents per pound in Comex copper’s value.