太平洋机械日报：LET 2025在广州盛大开幕

Market Performance - On May 22, 2025, the CSI 300 index fell by 0.06%, with the machinery sector declining by 0.98%, ranking 20th among all primary industries [1] - Within the sub-sectors, railway transportation equipment saw the highest increase of 0.57%, while lithium battery equipment experienced the largest drop of 2.21% [1] - Top three gainers included Hongming Co. (+20.00%), Huayan Precision (+19.99%), and Dongbei Group (+10.03%), while the largest decliners were Xinbang Intelligent (-17.76%), Gribot (-8.03%), and Ruihua Technology (-6.72%) [1] Company Announcements - Jindun Co.'s major shareholder reduced its stake from 7.08% to 6.00% through a centralized bidding process, decreasing its holdings by 1.08% [2] - Boying Special Welding's major shareholder plans to reduce its stake from 5.10% to 3.10%, with a total reduction of 2% through centralized bidding and block trading [2] - Boying Special Welding's other major shareholder reduced its stake from 8.10% to 8.00%, with a total reduction of 0.11% [2] - Jindi Co. plans to establish a wholly-owned subsidiary in Germany, Jindi Technology Europe Co., with an initial registered capital of €300,000 to support its overseas market expansion strategy [2] Industry News - The 2025 China (Guangzhou) International Logistics Equipment and Technology Exhibition (LET 2025) and the 2025 Guangzhou International Intelligent Robot Exhibition (IRE2025) opened on May 21, 2025, featuring over 600 brand exhibitors and covering more than 50,000 square meters [5] - The exhibitions focus on themes such as "Smart Factory, Intelligent Logistics, and Robotics," showcasing innovations in logistics systems, mobile robots, and intelligent loading technologies [5] - The event included a special interactive area for robot demonstrations, enhancing audience engagement with innovative products [5] Semiconductor Equipment - Tsinghua University's research team made significant progress in high-frequency supercapacitor research, addressing the challenges of power management chips amid rising demands for computing power and efficiency [6][7] - The team achieved a breakthrough by quantitatively measuring the upper limit of dynamic response frequency for supercapacitors, utilizing micro-nano processing technology to create ideal electrodes [7] - A new concept of "dielectric-electrochemical" asymmetric capacitors was proposed, achieving a characteristic frequency exceeding 1 MHz, significantly higher than commercial supercapacitors [7]