Group 1 - The conference will waive registration fees for attendees who register and present their information to receive a representative certificate [5] - Member organizations are limited to complimentary conference materials and meal vouchers, with specific limits based on membership level [5] - Non-member organizations and excess personnel from member organizations will be charged 2000 yuan per set for materials and meal vouchers [5] Group 2 - Payment for the conference should be made to the designated account, with specific instructions for remittance and invoice requests provided [5] - Contact information for various representatives related to the conference is listed, including mobile numbers for inquiries regarding industrial silicon, polysilicon, crystalline silicon photovoltaic companies, and accommodation [6]

Group 1 - The core viewpoint of the articles indicates that silicon wafer prices are under slight downward pressure due to weak terminal demand and significant declines in raw material prices, particularly polysilicon [1][2] - The average transaction prices for N-type silicon wafers have decreased slightly: G10L at 0.90 yuan per piece (down 3.23%), G12R at 1.04 yuan per piece (down 1.89%), and G12 at 1.25 yuan per piece (down 0.79%) [1][3] - The overall operating rates in the industry remain relatively stable, with major companies operating at rates between 50% and 80% [1] Group 2 - Downstream battery and module prices have remained stable, with mainstream battery prices at 0.24-0.25 yuan/W and module prices at 0.66-0.67 yuan/W, showing no change from the previous week [2] - Short-term demand in the downstream market is not expected to show significant recovery, which will continue to exert pressure on silicon wafer prices [2] - Companies are showing a strong willingness to reduce production to maintain prices amid widespread losses in the industry, suggesting limited downward space for silicon wafer prices if polysilicon prices do not decline significantly [2]

Group 1 - The conference will not charge a registration fee, and attendees can collect their representative certificates based on their registration information [4] - Member units are limited to receiving conference materials and meal vouchers, with specific limits for different membership levels [4] - Non-member units and additional member units will be charged 2000 yuan per set for materials and meal vouchers [5] Group 2 - The conference registration link is provided for attendees to sign up [6] - Contact information for various representatives related to industrial silicon, polysilicon, crystalline silicon photovoltaic companies, and accommodation is listed for assistance [6] - Payment details for the conference are specified, including the account information and invoice type [5]

本周多晶硅价格出现下降。 n型复投料成交价格区间为3. 2 0-3. 5 0万元/吨，成交均价3. 44 万元 /吨，环比下降 6.27 %。n型颗粒硅成交价格区间为3. 30 -3. 40 万元 /吨，成交均价为3. 35 万元 /吨，环比 下降 2.90% 。 p型多晶硅 暂无批量成交。 光伏展后多晶硅签单数量较少，价格再度下滑。具体来看，一线大厂在目前下游要价极低的情 况下接近无法成交，其余企业价格松动较为严重。据了解，价格下跌的主要原因如下：其一为受下 游硅片产品售价急速下跌，原料价格预期随之下调。目前下游企业普遍储备了一定量的硅料库存， 新签单压价较为严重。其二为硅料企业本月产能置换情况逐渐展开，短期内呈现产量增加的态势， 市场认为减产幅度不及预期，难以做出积极反应。其三为前期部分企业为保现金，被迫以低价去 库，下游企业原料价格心理价位已经形成，暂时无法接受更高价格。 截至目前，多晶硅在产企业数量为 11 家，基本全部处于降负荷运作状态。本月部分多晶硅产 能即将恢复生产，带来一定产量增量， 6 月份产出预期上调环比约 8% 。 （阎晓宇） ...

Core Viewpoint - The "2025 China (Leshan) Silicon Industry Chain Development Conference" is scheduled to be held from June 24-26 in Leshan, Sichuan Province, with over 200 companies registered and nearly 500 participants expected [1]. Group 1: Conference Details - The conference aims to discuss the development of the silicon industry chain in China, highlighting the importance of collaboration among various stakeholders [1]. - A list of participating companies includes major players such as Tongwei Co., Ltd., Sichuan Yongxiang Co., Ltd., and JinkoSolar Co., Ltd., indicating strong industry interest [1][2]. Group 2: Participating Companies - Notable companies registered for the conference include: - Tongwei Co., Ltd. - Sichuan Yongxiang Co., Ltd. - JinkoSolar Co., Ltd. - GCL-Poly Energy Holdings Limited - Corning (Shanghai) Management Co., Ltd. [1][2][3]. - The list also features various suppliers, research institutions, and financial firms, showcasing a diverse representation from the silicon industry [2][3][4]. Group 3: Industry Implications - The conference is expected to facilitate discussions on technological advancements and sustainable practices within the silicon industry, which is crucial for the growth of the photovoltaic sector [1]. - The participation of financial institutions and investment firms suggests a growing interest in funding and supporting innovations in the silicon industry [5][6].

Core Viewpoint - The industrial silicon spot prices remained stable over the past week, with minor fluctuations observed in the market, indicating a cautious but improving market sentiment [1]. Supply and Demand Analysis - Supply side: Industrial silicon manufacturers are producing according to plan, with slight production increases from the Southwest region due to some resumption of operations and new capacity coming online [1]. - Demand side: There is an expected increase in operating rates for organic silicon monomer plants in northern regions, which will boost demand for industrial silicon. Additionally, there is a slight increase in operating rates for polysilicon plants, maintaining demand for industrial silicon. Aluminum alloy plants are operating normally, keeping demand stable [1]. Price Dynamics - The overall market for industrial silicon remains under pressure, with prices expected to continue fluctuating within a lower range due to increased supply and limited demand growth. Organic silicon monomer plants are facing inventory pressure, leading to competitive pricing and price declines. The drop in silicon wafer prices has also contributed to a negative sentiment in polysilicon procurement, further impacting prices [1].

Core Viewpoint - The article provides a detailed analysis of the pricing trends for high-purity quartz sand and quartz crucibles, highlighting the price fluctuations and average prices across different categories as of June 17, 2025 [1][2]. Pricing Trends of High-Purity Quartz Sand - Import quartz sand has a highest price of 9 million yuan per ton and a lowest price of 8.5 million yuan per ton, with a fluctuation of -1 [1]. - Inner layer quartz sand ranges from a highest price of 7 million yuan per ton to a lowest of 5 million yuan per ton, showing no fluctuation [1]. - Middle layer quartz sand has a highest price of 3 million yuan per ton and a lowest price of 2.5 million yuan per ton, also with no fluctuation [1]. - Outer layer quartz sand is priced between 2.2 million yuan per ton and 1.8 million yuan per ton, with no fluctuation [1]. Pricing Trends of Quartz Crucibles - The 28-inch quartz crucible has a highest price of 0.62 million yuan and a lowest price of 0.6 million yuan, with an average price of 0.61 million yuan and no fluctuation [1]. - The 32-inch quartz crucible ranges from a highest price of 0.7 million yuan to a lowest of 0.66 million yuan, with an average price of 0.68 million yuan and no fluctuation [1]. - The 36-inch quartz crucible has a highest price of 0.78 million yuan and a lowest price of 0.74 million yuan, with an average price of 0.76 million yuan and no fluctuation [1].

Company Overview - Hebei Sunchon Electrode Co., Ltd. is a private enterprise specializing in the research, production, and sales of silicon-specific electrodes [2] - The company adheres to the philosophy of "creating value for customers" and implements a brand development strategy while establishing a modern management system [2] - Sunchon has strong technical research and development capabilities, with a provincial carbon materials engineering technology research center and collaborations with institutions like the Chinese Academy of Sciences [2] Product Offerings - The company offers over 60 products in two main series: high graphite electrodes and graphite electrodes, with large specifications ranging from Φ1146mm to 1600mm [2][6] - The high-power graphite electrodes have reached internationally advanced technology levels and are exported to markets in the USA, Australia, and Brazil [2] Product Performance - The electrode products exhibit excellent electrical conductivity, allowing them to withstand high current densities during smelting [12] - They possess good thermal conductivity, which reduces internal temperature gradients and minimizes thermal stress [13] - The mechanical strength is high enough to endure external impacts during smelting without breaking [14] - The products have high chemical purity, ensuring that the final products remain uncontaminated [15] - Reliable connections ensure smooth current flow through the electrode columns, maintaining production continuity [16] Industry Position - Sunchon Electrode is recognized as the first standard setter in the industry, emphasizing its leadership in the market [6]

Core Viewpoint - The article provides an overview of the pricing trends in the photovoltaic glass market, highlighting the price ranges and average prices for different thicknesses of photovoltaic glass as of June 17, 2025, indicating a stable market with no significant fluctuations in prices [1][2]. Pricing Summary - For 2.0mm photovoltaic glass, the highest price is 12 yuan per square meter, the lowest is 11.5 yuan, and the average price is 11.75 yuan, with no price fluctuation reported [1]. - For 3.2mm photovoltaic glass, the highest price is 21 yuan per square meter, the lowest is 19 yuan, and the average price is 20 yuan, also showing no price fluctuation [1].

Core Viewpoint - Quartz glass fiber, with a silica content exceeding 99.99%, exhibits exceptional thermal resistance and electrical insulation properties, making it suitable for various high-temperature applications in aerospace, military, and semiconductor industries [1][3][5]. Production Process - Quartz glass fiber is produced by refining pure natural crystal into molten quartz glass rods, which are then drawn into fibers. The production methods include hydrogen-oxygen flame and plasma methods, with various coatings applied based on intended use [3][4]. Physical and Chemical Properties - The chemical composition of quartz glass fiber closely resembles that of high-purity quartz glass, resulting in similar physical and chemical properties [4]. - It has superior electrical insulation properties, with the lowest dielectric constant and loss factor among mineral fibers, making it ideal for high-frequency applications [5][6]. Mechanical Properties - Quartz glass fiber has a tensile strength of 6,000 MPa, which is three times that of standard glass fibers. Its tensile modulus and elongation at break are also competitive compared to other fibers [11][12]. Thermal Properties - The softening temperature of quartz glass fiber is 1,700 °C, and it can be used continuously at temperatures up to 1,050 °C. It exhibits minimal weight loss (less than 1.5%) after being subjected to 1,000 °C for 1,000 hours [16][17]. Applications - The superior electrical insulation properties make quartz glass fiber suitable for radar domes in military aircraft, electromagnetic emission windows, and high-frequency circuit boards [20]. - Its thermal resistance allows for applications in aerospace, such as heat-resistant auxiliary facilities around spacecraft engines, thermal protection systems, and ablative materials for re-entry [21].