尾盘突发！利好，来了！

Market Overview - The A-share market experienced fluctuations on August 7, with the Shanghai Composite Index reaching a new high for the year, closing up by 0.16% [2][3]. - A total of 2,118 stocks rose, while 3,086 stocks fell, with a total trading volume of 18,524.79 billion [4]. Sector Performance - The rare earth permanent magnet sector saw significant gains, with companies like Zhenghai Magnetic Materials and Aishi Chuang hitting the daily limit [5][6]. - China's rare earth exports in July reached 5,994.3 tons, a year-on-year increase of 21% [5]. - The semiconductor chip sector also performed well, with companies such as Dongxin Co. and Fuman Microelectronics reaching the daily limit [7][8]. - The medical device sector experienced a surge, with companies like Sainuo Medical and Zhonghong Medical hitting the daily limit [9][10]. Brain-Computer Interface Industry - A major positive development for the brain-computer interface (BCI) sector was announced, with the Ministry of Industry and Information Technology and other government bodies releasing implementation opinions aimed at promoting innovation in the BCI industry [12][13]. - By 2027, key technologies in the BCI field are expected to achieve breakthroughs, establishing an advanced technical, industrial, and standard system [12][14]. - The plan includes the development of high-performance brain signal processing chips and auxiliary devices to enhance interaction control and precision assessment [14].