美元走软助力大宗商品反攻：LME期铜价站上1.3万美元大关，印尼减产推动镍价五连阳

Group 1 - Despite a decrease in Chinese buyers before the Spring Festival holiday, copper prices continue to rise due to tightening supply prospects and a weaker dollar [1] - Investor optimism regarding copper prices is driven by expectations of increased demand from global manufacturing, green transition, and artificial intelligence development [1] - Speculative funds, including Chinese capital, have contributed to the price increase in recent months, supported by the weaker dollar making commodities cheaper when priced in other currencies [1] Group 2 - Wu Kunjin, head of non-ferrous metals research at Wuxing Futures Co., noted that while Chinese buyers have slowed their purchases before the holiday, overseas risk appetite remains [4] - According to Shanghai Steel Union's survey, China's refined copper spot trading volume dropped to 13,400 tons on Wednesday, down from a peak of over 38,000 tons on February 2 [4] - As of the report, copper prices on the London Metal Exchange rose by 0.5% to $13,166.50 per ton, while nickel prices increased by 0.6% due to production cuts at the world's largest nickel mine in Indonesia [4]