Summary of Conference Call Notes Industry Overview - The focus is on the application of **tandem solar cells** in **space photovoltaic** systems, highlighting the challenges and advancements in technology related to lightweight and flexible solar panels [1][2]. Key Points and Arguments 1. **Challenges with Thin Silicon Cells**: - Space photovoltaic cells require extreme weight reduction and flexibility, making ultra-thin silicon cells very fragile. The use of string welding can lead to mechanical stress and high-temperature welding issues, increasing the risk of silicon cell breakage and detachment under extreme temperature variations in space [1][2]. 2. **Advantages of Tandem Structure**: - The tandem structure allows for flexible connections of silicon cells, reducing the number of solder joints. This effectively disperses mechanical stress, minimizing the risks of hidden cracks and breakage [1][2]. 3. **Increased Effective Power Generation**: - The tandem structure can achieve zero spacing between solar cells, which enhances the effective power generation area for the same solar wing size [3]. 4. **Historical Context**: - The application of tandem structures in space photovoltaics is well-established, with the "Shijian-1" satellite launched in 1971 being an early example of a solar panel using a "comb-type" structure designed in China [4]. 5. **Industry Feedback**: - Leading North American renewable energy companies are currently using tandem solutions for ground photovoltaic modules. The production line for tandem components is reported to be more than twice the cost of conventional string welding lines, indicating significant market interest [4]. Company Highlights 1. **ST Jingji**: - The wholly-owned subsidiary, Shengcheng Photovoltaics, possesses competitive manufacturing technology for tandem components. It is noted for being the sole supplier of ground tandem production lines to a well-known North American company and has also supplied coating equipment to overseas space perovskite enterprises. The company holds a significant market share in North America, estimated to exceed 50% [4]. 2. **Dike Co., Ltd.**: - A leading company in photovoltaic silver paste, known for its R&D capabilities. It has nearly 100% market share in North America and has been promoting tandem adhesive products since 2019, leveraging its core patent advantages in conductive paste solutions [5]. 3. **Debang Technology**: - A core supplier of tandem conductive adhesives, with products widely used in leading photovoltaic companies such as Tongwei, Canadian Solar, and major North American renewable energy firms, holding a strong competitive position in the market [5]. 4. **Juhe Materials**: - A leading company in photovoltaic silver paste, developing copper paste products suitable for photovoltaic cells, currently undergoing testing with major clients and expected to benefit from the adoption of high/pure copper paste materials [5]. 5. **Aotewei**: - A leading company in photovoltaic component equipment, with key products including string welding machines and silicon wafer sorting machines. The company has also made advancements in tandem equipment, achieving high precision and yield rates [6]. Additional Important Insights - The integration of semiconductor material assets by companies is seen as a solution to domestic supply chain issues, addressing critical bottlenecks in the industry [5][6].

Investment Rating - The investment rating for the company is maintained as "Buy" [2] Core Views - The company is expected to experience a reversal in its photovoltaic equipment business, with significant growth anticipated in solid-state, energy storage, and battery cell (BC) businesses [7] - The company has secured strategic partnerships and contracts, including a collaboration with Shanghai Yili for solid-state battery solutions, and has established a production base for solid-state batteries in Changzhou [7] - The company has achieved a leading position in the energy storage equipment sector, with over 300 production lines shipped globally, and has established partnerships with major players in the energy storage industry [7] - The photovoltaic segment has shown competitive advantages with its core products, and the acquisition of Wuxi Weiyin Technology has expanded its capabilities in smart software and data services [7] - The earnings forecast for 2025 has been adjusted downwards due to a decline in orders, with projected net profits for 2025-2027 being 792 million, 957 million, and 1,245 million respectively, indicating a lower valuation compared to peers [7] Financial Data and Profit Forecast - Total revenue is projected to be 6,848 million in 2025, with a year-on-year decline of 25.5% [6] - The net profit attributable to the parent company is expected to be 792 million in 2025, reflecting a decrease of 37.8% year-on-year [6] - The earnings per share (EPS) is forecasted to be 2.51 yuan per share in 2025 [6] - The company's return on equity (ROE) is projected to be 16.9% in 2025 [6]

Investment Rating - The investment rating for the company is "Buy" (maintained) [1] Core Views - The company's performance is currently under pressure due to industry cycles, but there is optimism regarding its platform layout and expansion into overseas markets [1] - The company has seen a significant decline in revenue and net profit projections for 2025-2027, but the semiconductor and lithium battery businesses are expected to continue growing [1] Financial Summary - Total revenue for 2023 is projected at 6,302 million RMB, with a year-on-year growth of 78.05%. However, for 2025, revenue is expected to decline to 7,092 million RMB, representing a decrease of 22.89% [1] - The net profit attributable to the parent company for 2023 is estimated at 1,255.82 million RMB, with a year-on-year increase of 76.10%. By 2025, this is expected to drop to 729.46 million RMB, a decline of 42.69% [1] - The latest diluted EPS for 2023 is projected at 3.98 RMB, which is expected to fall to 2.31 RMB in 2025 [1] - The current P/E ratio is approximately 10.39 for 2023, increasing to 17.88 for 2025 [1] Operational Insights - In the first half of 2025, the company reported total revenue of 3,379 million RMB, a year-on-year decrease of 23.6%. The revenue from photovoltaic equipment was 2,665 million RMB, down 31.6% [7] - The company has seen a significant increase in orders for semiconductor equipment, with new orders exceeding 90 million RMB in the first half of 2025 [7] - The overseas revenue reached 790 million RMB in the first half of 2025, marking a year-on-year growth of 10.1% and accounting for 23.4% of total revenue [7] Market Position - The company is positioned as a platform company across photovoltaic, lithium battery, and semiconductor sectors, with notable clients including Trina Solar and LONGi Green Energy [7] - The company has accelerated its overseas expansion, with a factory in Malaysia commencing operations in the first half of 2025 [7]