半年报窗口开启，科技与资源个股业绩大增

Group 1: Company Performance - Longchuan Technology achieved revenue of 2.167 billion yuan, a year-on-year increase of 41.8%, and net profit of 427 million yuan, a year-on-year increase of 98.73%, exceeding the previous forecast range of 360 million to 420 million yuan [1] - Xiamen Tungsten's revenue for the first half of the year was approximately 7.534 billion yuan, a year-on-year increase of 18.04%, with net profit of 307 million yuan, a year-on-year increase of 27.76% [2][3] - West Mining reported revenue of 31.619 billion yuan and net profit of 1.869 billion yuan, representing year-on-year growth of 27% and 15%, respectively, driven by an increase in copper production and prices [3] - Zhimin Technology's revenue reached 295 million yuan, a year-on-year increase of 84.83%, and net profit surged to 38.3 million yuan, a year-on-year increase of 2147.93%, attributed to increased customer demand and order volume [4] Group 2: Industry Trends - The semiconductor and AI sectors, along with resource industries like rare earths and gold, are showing strong performance according to the statistics from over 1,570 listed companies [4] - The testing industry is experiencing a significant upward trend, with expectations for continued high growth in revenue driven by major customer demand and market expansion [1] - The demand for lithium cobalt and power battery materials is increasing, supported by national subsidy policies and enhanced AI functionalities in consumer electronics [2]