股票代码：600438 股票简称：通威股份 公告编号：2025-085 债券代码：110085 债券简称：通 22 转债 通威股份有限公司 关于对外提供担保的进展公告 公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重 大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 被担保人名称： 2025 年 10 月 1 日—2025 年 10 月 31 日期间（以下简称"本次期间"）公司担保事 项被担保人均为非上市公司关联人。被担保人如下：公司下属 7 家全资子公司：内蒙 古通威硅能源有限公司、通威渔光一体南昌有限公司、天门通威水产科技有限公司、 东营通裕新能源有限公司、越南通威有限责任公司、和平通威有限责任公司、同塔通 威有限责任公司；公司下属 2 家控股子公司：越南天邦饲料有限公司、通威（海南） 水产食品有限公司；公司部分客户。 本次期间担保金额及已实际为其提供的担保余额： 本次期间，公司及下属子公司相互提供担保金额为 5.30 亿元；公司子公司通威农 业融资担保有限公司（以提供担保为主营业务的持有金融牌照的公司子公司，以下简 称"农业担保公司"）为客户提供担保的担保责 ...

Core Insights - The article outlines the schedule and key events for the 2025 Eighth China International Photovoltaic and Energy Storage Industry Conference, emphasizing the integration of photovoltaic and energy storage technologies [1][5][6]. Event Schedule - The conference will take place from November 16 to November 20, 2025, at the Chengdu Century City International Convention Center, featuring various forums and summits focused on photovoltaic and energy storage technologies [1][12]. - Notable events include the Second Perovskite and Stacked Solar Cell Industrialization Forum, the Global Photovoltaic Waste Resource Recovery Technology Seminar, and the 2025 New Energy Listed Companies Summit [2][3][8]. Key Themes - The conference will address themes such as high-quality development in the new energy sector, investment opportunities in photovoltaic and energy storage industries, and technological innovations [8][9][11]. - Specific forums will focus on collaborative development in the energy supply chain and the integration of AI in the photovoltaic and energy storage sectors [9][11]. Networking Opportunities - The event will provide numerous networking opportunities through various invitation-only dinners and award ceremonies, fostering collaboration among industry leaders [5][6][9]. - The "Green Silicon Valley" night and the "Mianyang·China Crystalline Silicon Photovoltaic Manufacturing Base" night are among the highlighted networking events [5][6]. Industry Development - The conference aims to promote the sustainable development of the photovoltaic and energy storage industries, addressing challenges such as energy consumption and resource recycling [10][11]. - The "Light Storage Journey" will offer insights into the development clusters of the photovoltaic and energy storage industries in Western China [12].

Group 1 - The photovoltaic equipment sector experienced a decline in the afternoon trading session on November 4, with notable drops in stock prices [1] - Hongyuan Green Energy fell over 7%, while Sunshine Power dropped more than 5% [1] - Other companies such as Dike Co., High Measurement Co., and Tongwei Co. also saw declines in their stock prices [1]

Core Viewpoint - The photovoltaic equipment sector experienced a decline in the afternoon trading session, with several companies showing significant drops in their stock prices [1] Company Performance - Hongyuan Green Energy saw a decline of over 7% [1] - Sunshine Power dropped by more than 5% [1] - Other companies such as Dike Co., High Measurement Co., and Tongwei Co. also experienced declines in their stock prices [1]

Core Viewpoint - Tongwei Co., Ltd. is adjusting its production strategy in response to seasonal electricity price increases and aims to stabilize the polysilicon market while promoting long-term healthy development in the photovoltaic industry [1][2]. Group 1: Company Performance - In the third quarter of 2025, Tongwei Co., Ltd. reported a net loss attributable to shareholders of 315 million yuan, an improvement from a loss of 844 million yuan in the same period last year, and a reduction from losses of 2.593 billion yuan in Q1 and 2.362 billion yuan in Q2 of this year [1]. - The company has implemented maintenance and production cuts at its polysilicon production facilities in Yunnan and Leshan since December last year to address supply-demand imbalances in the industry [1]. Group 2: Industry Context - The photovoltaic industry has experienced severe overcapacity in the past two years, leading to a significant price drop in the entire supply chain, with polysilicon prices falling from a peak of 200,000 yuan per ton to around 30,000 yuan per ton at the beginning of this year [1]. - In response to low-price competition, the Ministry of Industry and Information Technology convened meetings with 14 photovoltaic companies and industry associations to signal a need for "anti-involution" measures, resulting in a gradual return to rational pricing in the industry [2]. - As of now, polysilicon prices have increased from a low of 30,000 yuan per ton in the first half of the year to approximately 50,000 yuan per ton [2].

Core Insights - The A-share listed companies in Chengdu have reported strong performance for the third quarter of 2025, with 91 out of 122 companies profitable, representing a profitability rate of 74.6% [1][3] - Total operating revenue for these companies reached 4340.55 billion, with a net profit totaling 411.75 billion [1][3] - Chengdu Bank led in net profit with 94.93 billion, while Olin Bio achieved the highest year-on-year net profit growth rate at 1079.36% [1][3] Financial Performance - Among the 122 Chengdu A-share listed companies, 58 reported positive year-on-year net profit growth, accounting for nearly 48% [3] - Twelve companies reported net profits exceeding 10 billion, including Chengdu Bank, New Yisheng, and Sichuan Road and Bridge [3] - The net profit growth rates for several companies were remarkable, with Olin Bio at 1079.36% and Zhimingda at 995.37% [3][4] Sector Performance - The economic data from Chengdu shows a GDP of 18226.9 billion for the first three quarters, growing by 5.8% year-on-year, indicating a stable growth environment for listed companies [4] - Various sectors, including electronics, non-ferrous metals, and biomedicine, showed strong performance, particularly driven by downstream demand [4] - New Yisheng reported significant growth in the artificial intelligence sector, with a revenue increase of 221.70% and a net profit increase of 284.37% [4][5] Company Highlights - New Yisheng's revenue for the first three quarters reached 165.05 billion, with a third-quarter revenue of 60.68 billion, reflecting a year-on-year growth of 152.53% [4][5] - Olin Bio achieved a revenue of 5.07 billion, with a net profit of 4747.98 million, marking a year-on-year growth of 1079.36% [5] - Zhimingda, focusing on high-reliability embedded computing, reported a revenue of 5.12 billion, with a net profit turnaround [5]

Investment Rating - The report maintains an "Outperform" rating for the renewable energy sector, indicating a positive outlook compared to the broader market [2]. Core Insights - The report highlights that major companies in the energy storage sector have shown impressive Q3 performance, with significant year-on-year profit growth [7]. - The photovoltaic sector has seen a sequential improvement in profitability, although challenges remain due to market pressures [28][29]. - The wind energy sector is experiencing robust growth, particularly with significant overseas contracts being secured [6][25]. Summary by Sections Wind Energy - Goldwind Technology has signed a contract for a 3GW wind power project in Saudi Arabia, providing a full lifecycle solution from equipment to operation [6][11]. - The wind index increased by 1.12% in the week of October 27-31, outperforming the CSI 300 index by 1.55 percentage points, with a current PE TTM of 26.07 [12][13]. - The report emphasizes the competitive advantage of domestic large-capacity wind turbine models in international markets [11][25]. Photovoltaic - Major photovoltaic companies reported Q3 losses, but with a reduction in losses compared to previous quarters; Longi Green Energy reported a loss of 830 million yuan, a reduction of 300 million yuan [28][27]. - The photovoltaic equipment index rose by 8.65%, outperforming the CSI 300 index by 9.08 percentage points, with a current PE TTM of 48.20 [30]. - The improvement in profitability is attributed to stabilized prices in the photovoltaic supply chain and a reduction in inventory impairment losses [28][29]. Energy Storage & Hydrogen Energy - Major energy storage companies reported strong Q3 results, with Sunshine Power's net profit increasing by 56.34% year-on-year [7]. - The report notes that the domestic energy storage market is expected to grow significantly, with a projected market size of approximately 800GWh over the next three years [7]. - The global energy storage market is anticipated to grow at a rate of 40-50% by 2026, indicating strong demand in both domestic and international markets [7].

Core Insights - The Zhongzheng Photovoltaic Industry Index (931151) has seen a strong increase of 2.70% as of November 3, 2025, with significant gains in constituent stocks such as Tebian Electric (600089) and Hongyuan Green Energy (603185), both rising by 10.01% [1] - The Photovoltaic ETF Fund (516180) has also risen by 2.94%, with a recent price of 0.84 yuan, and has accumulated a 6.54% increase over the past week [1] - The index reflects the overall performance of listed companies involved in the photovoltaic industry chain, selecting up to 50 representative stocks [1] Company Performance - The top ten weighted stocks in the Zhongzheng Photovoltaic Industry Index as of October 31, 2025, account for 60.74% of the index, with significant players including Sunshine Power (300274) and Longi Green Energy (601012) [2] - The performance of key stocks includes: - Sunshine Power (300274): up 3.26%, weight 17.58% - Longi Green Energy (601012): up 2.61%, weight 8.38% - Tebian Electric (600089): up 10.01%, weight 7.31% - TCL Technology (000100): up 0.46%, weight 7.29% - Tongwei Co. (600438): up 1.21%, weight 4.91% - Zhengtai Electric (601877): down 0.59%, weight 2.68% - Jingcheng Machinery (300316): up 0.82%, weight 2.43% - Deyang Co. (605117): up 6.40%, weight 2.42% - TCL Zhonghuan (002129): up 2.43%, weight 2.38% - Jiejia Weichuang (300724): down 0.30%, weight 2.26% [4]

Core Insights - The photovoltaic sector is showing resilience with the CSI Photovoltaic Industry Index rising by 1.94%, driven by significant gains in key stocks such as Arctech, Trina Solar, and Hongyuan Green Energy [1] - New advancements in perovskite photovoltaic devices have achieved a record conversion efficiency of 25.19%, maintaining over 95% performance after 1000 hours of operation [1] - The introduction of "anti-involution" policies by the government is expected to enhance competition and promote sustainable development in the photovoltaic industry [2] Group 1: Market Performance - The CSI Photovoltaic Industry Index increased by 1.94%, with Arctech rising over 7%, Trina Solar over 6%, and Hongyuan Green Energy nearly 6% [1] - The Photovoltaic 50 ETF (516880) rose by 2.03%, with a trading volume of nearly 10 million yuan within the first five minutes of opening [1] - As of October 31, the Photovoltaic 50 ETF had a circulating share of 2.314 billion and a market size of 1.941 billion yuan [1] Group 2: Technological Advancements - A research team from Nanjing University of Technology developed a perovskite photovoltaic device with a conversion efficiency of 25.19% using "all-vacuum thermal evaporation" technology [1] - The device's performance remained above 95% after continuous operation for over 1000 hours, indicating significant technological progress [1] Group 3: Industry Outlook - Since June 2025, the government has implemented "anti-involution" policies to regulate competition in the photovoltaic sector, shifting from chaotic price competition to sustainable development [2] - The market share of N-type monocrystalline silicon technology is expected to exceed 96.9%, with three major technological routes (TOPCon, HJT, BC) driving efficiency improvements and cost reductions [2] - The installed capacity of photovoltaic systems in China is projected to grow by approximately 45% in 2024 compared to the previous year, marking a nearly 20-fold increase since 2015 [2]

Core Viewpoint - The "14th Five-Year Plan" emphasizes green transformation as a core goal, aiming to consolidate and expand the advantages of the wind and solar industries, with a significant focus on optimizing the competitive landscape and promoting profitability recovery in the solar industry [1][2]. Policy and Technology Drivers - The dual drivers of policy and technology are propelling the solar industry towards high-quality development, with the "14th Five-Year Plan" leading the way and "anti-involution" policies optimizing both supply and demand sides [1]. - Since June 2025, the government has introduced multiple "anti-involution" policies to regulate competition, shifting the industry from chaotic low-price competition to sustainable development [1]. Technological Transformation - The solar industry is undergoing profound changes, with China expected to officially transition away from P-type technology by 2025, and N-type monocrystalline silicon technology projected to capture over 96.9% market share [2]. - Key technological routes such as TOPCon, HJT, and BC are driving improvements in battery efficiency and reductions in cost per kilowatt-hour [2]. Industry Growth - China's solar installation capacity is set to experience significant growth, with an anticipated 45% year-on-year increase in new installations for 2024, marking nearly a 20-fold increase since 2015 [2]. - The industry is showing signs of recovery after adjustments, with "anti-involution" policies expected to enhance the competitive landscape and support profitability recovery [2]. Index Investment Value - The CSI Photovoltaic Industry Index (931151.CSI) covers the entire solar industry chain, focusing on core manufacturing segments, with a weight of 68% in solar equipment and significant representation from key sectors like inverters and battery components [3]. - The index has delivered a cumulative return of 177% since its inception in 2012, with an annualized return of 8.53%, outperforming major market indices [3]. Valuation and Future Outlook - Despite recent adjustments due to supply-demand mismatches, the current valuation of the index is attractive, with a price-to-book ratio of 2.43, indicating a high margin of safety [3]. - Revenue and profitability are expected to gradually recover, with a projected 15.31% growth in total revenue by 2026 and a return on equity (ROE) potentially returning to around 10% [3]. Strategy for Investment - The solar industry index is characterized by concentration, high volatility, and strong elasticity, making it suitable for capturing excess returns through thematic investment strategies [4]. - A core-satellite strategy combining the solar index with broad-based ETFs can enhance returns while managing risk, with the core-satellite approach yielding an annualized return of 30.4% compared to 2.3% for the CSI 500 ETF [4].