指数跌2.48%报4015.75点，深证成指跌

Market Performance - A-shares experienced a significant decline, with the Shanghai Composite Index dropping by 2.48% to 4015.75 points, and the Shenzhen Component Index falling by 2.69%[1] - The Hong Kong Hang Seng Index fell by 2.23% to 26775.57 points, while the Hang Seng Tech Index plummeted by 3.36%[1] - The total market turnover in Hong Kong was approximately 34.79 billion HKD[1] U.S. Economic Indicators - The U.S. manufacturing sector unexpectedly expanded, with the ISM Manufacturing Index rising from 47.9 to 52.6, marking the fastest growth since 2022[12] - New orders and production indicators showed significant increases, with new orders rising nearly 10 points[12] - The Dow Jones increased by 1.05% to 49407.66 points, while the S&P 500 and Nasdaq rose by 0.54% and 0.56%, respectively[1] Trade and Tariff Changes - President Trump announced a reduction in tariffs on Indian goods from 25% to 18%, contingent on India's commitment to cease purchasing Russian oil and to procure over 500 billion USD in U.S. products[12] - The U.S. is launching a 12 billion USD critical mineral reserve project to reduce dependence on Chinese rare earths[12] Commodity Market Insights - Chinese copper processors are reportedly increasing their inventory ahead of the Lunar New Year, taking advantage of a price drop, with futures prices having fallen by 12% from recent highs[12] - Copper prices are expected to stabilize around 100,000 RMB (approximately 14,400 USD) per ton, influencing procurement strategies[12]