[US dollar weakens ahead of US-Japan talks, copper prices hold up well]: On the macro side, US Fed officials made more cautious remarks about the economy and doubled down on their concerns about the economic impact of the Trump administration's trade policies. Meanwhile, traders are looking forward to the upcoming US-Japan talks, which may include discussions on exchange rates as part of a trade agreement. The US dollar weakened again on Tuesday, which is bullish for copper prices. On the fundamental side, supply side, there is a shortage of mainstream cargo, and suppliers are reluctant to sell at low prices due to tight supply. On the demand side, after the copper prices fell in the morning session, downstream buyers began to purchase at lower prices, and both the market's purchasing sentiment index and sales sentiment index improved during the day. Factors such as inventory buildup and the expected significant outflow of warrants today are expected to curb spot premiums, but the current market has some support for spot premiums due to the shortage of mainstream cargo. On the price side, it is expected that there will be some support for copper prices today.