A large amount of refined copper flowing into the United States.

At the beginning of June, copper futures in New York and London continued to trend upwards. According to Reuters, the market is experiencing tension due to the possibility of the United States imposing import tariffs on refined copper at the end of June. American traders have started stocking up in advance, combined with arbitrage operations heating up again, pushing the global copper market into a high-stakes game. Today, international copper prices continued to rise. Data shows that as of the closing on June 1st, the price of the main New York Mercantile Exchange copper futures contract had increased by 10% in the past month, while the cumulative increase in the price of three-month copper futures on the London Metals Exchange over the same period was around 6.5%.