Market Overview - On February 27, 2026, A-shares exhibited extreme divergence, with the Shanghai Composite Index rising by 0.39% to close at 4162 points, while the ChiNext Index fell by 1.04% [1][3] - The market's profit-making effect was concentrated in the metal sector, particularly small metals, rare earths, and non-ferrous metals, which saw a surge in stock prices [3][5] Metal Sector Performance - The small metals sector experienced significant gains, with an overall increase exceeding 7%, and multiple stocks such as Xiamen Tungsten and Zhongtung High-tech hitting the daily limit [5][6] - Tungsten powder prices surpassed 1800 RMB per kilogram, marking a nearly 470% increase compared to early 2025, while ammonium paratungstate reached a historical high of 1.1 million RMB per ton, up over 400% year-on-year [6][9] Supply and Demand Dynamics - The supply constraints in the tungsten market are attributed to reduced mining quotas and stricter environmental checks in China, alongside limited overseas production increases [11][13] - The demand for tungsten is surging in emerging sectors such as photovoltaics and new energy, further tightening the market [11][13] International Political Factors - A report indicated that the Trump administration is planning to use an AI model developed by the Department of Defense to set global reference prices for strategic minerals, including tungsten, which could intensify the competition for resource pricing power [9][13] - China's dominance in the production and processing of key minerals, holding over 70% of heavy rare earth production and 90% of separation processing capacity, positions it as a critical player in this geopolitical landscape [9][13] Capital Flow and Market Sentiment - Despite the strong performance of certain sectors, there was a net outflow of approximately 200 billion RMB from the market, indicating a cautious stance among major investors [11] - The market sentiment remains cautiously optimistic, with a structural shift in capital flow from technology stocks to the rising metal resource sector, driven by commodity price trends and geopolitical factors [13]