Core Viewpoint - The company has successfully developed and mass-produced a high-performance T1 AC Surge Protective Device (SPD) after passing customer validation [2]. Group 1 - The custom-developed high-performance T1 AC SPD has completed the customer verification phase [2]. - The product has now entered mass production [2].

Core Insights - SMIC is testing a DUV lithography machine developed by the Shanghai startup Yuliangsheng, which uses immersion technology similar to ASML's, but it is unclear when it will be ready for mass production [1] - If successful, this development could significantly reduce China's reliance on Western technology and enhance its AI chip production capacity [1] - Following this news, SMIC's stock rose nearly 7% on September 17, and related stocks in the lithography machine sector also experienced a surge [1] Company Developments - Dinglong Co. has developed nearly 30 high-end wafer photoresist products, with over 15 samples sent for customer validation, and several products expected to secure orders in the latter half of the year [1] - WaveOptics focuses on optical components and systems, with a small revenue scale in the lithography machine sector, but maintains competitive advantages through rapid R&D and cost optimization [2] - Dongfang Jiasheng is expanding its semiconductor service capabilities and has established a supply chain service for semiconductor equipment maintenance in Southern China [3] - Qiaoyuan Co. specializes in high-purity gases for various industries, including semiconductor manufacturing, and plans to focus on electronic specialty gases as a strategic direction [5] - Zhongci Electronics is advancing in the SiC power semiconductor field and aims to capture market share in high-voltage applications [5] - Tongfei Co. provides temperature control products for semiconductor manufacturing, ensuring high precision in temperature management [5] - Zhongrun Optics produces high-end optical filters used in lithography machines, with clients including ASML [5] - Chipbond Technology has a stable and deep partnership with Shenghong Technology, focusing on AI server and advanced packaging demands [7]

Group 1: Investment Projects - The company has invested in a data center liquid cooling project through Hangyuan Photothermal (Beijing) Technology Co., Ltd., which utilizes advanced aerospace cooling technology, achieving a PUE of 1.1 and a WUE of less than 0.05 kg/kWh [2] - The company has invested 1,200,000 yuan in Chengdu Shuzhilian Technology Co., Ltd., holding a 0.915% stake as of August 31, 2025 [2] Group 2: Product Development - The company has developed a high-performance T1 AC SPD (surge protective device) for domestic photolithography machines, currently in the sample stage [2] - A new multifunctional protective device against lightning and electromagnetic pulses has been successfully validated in several defense projects [3] Group 3: Financial Performance and Shareholder Returns - Since its listing in 2015, the company has consistently prioritized investor interests, with a total cash dividend amounting to 9,878.11 million yuan over the years, representing 68.52% of the average net profit over the last three fiscal years [3] - The controlling shareholder has not reduced their stake since the company's listing and completed a share increase plan in August 2018, amounting to 1,000.22 million yuan [3] Group 4: Market Confidence and Management - The management expresses confidence in the company's future development despite market fluctuations, attributing any personal share reductions to individual financial needs [3]

Core Viewpoint - Zhongguang Lightning Protection (中光防雷) has announced the development of a high-performance ultra-large flow T1AC SPD (surge protective device) tailored for the domestic photolithography machine application requirements, which is currently in the sample stage [1] Company Summary - Zhongguang Lightning Protection is actively engaged in the research and development of advanced surge protective devices to meet the specific needs of the domestic photolithography machine sector [1]