Summary of Conference Call on Taiwan Electronic Copper Foil Industry Industry Overview - The high-frequency and high-speed electronic copper foil market is primarily dominated by Taiwanese and Japanese suppliers, such as Nanya, Chang Chun, and Mitsui, with overall supply being relatively tight, especially for high-end products [1][4][6]. Key Insights - **High-End Copper Foil Demand**: There is a strong demand for high-end electronic copper foil (third and fourth generation HVOP), mainly used in ultra-high-speed transmission servers, AI, and cloud transmission, with optimistic market growth expected in the coming years [1][6]. - **COOP Technology Impact**: The COOP technology route significantly influences the electric film formation field, requiring a balance between adhesion and electrical performance for high-end HVOP copper foil. Demand for HBOP3 and HBOP4 grades is increasing, but production technology is still immature [1][7][8]. - **Emerging Demand from COF Technology**: COF technology may create new demand for ultra-thin glass substrate copper foil, currently produced only by Mitsui in Japan and its Malaysian factory, indicating substantial future growth potential despite high technical barriers [1][9]. - **Domestic Competitors**: Domestic companies like Defu Technology are making strides in the substrate copper foil sector but still lag behind international leaders like Mitsui in adhesion and product formulation, needing to address intellectual property issues [1][10]. Production and Cost Insights - **Processing Fees**: The processing fees for HVOP copper foil vary by generation, with first-generation fees at 60-80 RMB/kg and fourth-generation fees exceeding 200 RMB/kg. The demand for fourth-generation products is expected to exceed 1,000 tons/month by 2027 [1][19][17]. - **Market Supply and Demand**: The copper foil market is expected to remain in a supply-demand imbalance through 2026 due to long certification cycles and limited supplier options for end manufacturers, despite overall copper foil capacity being sufficient [2][24][25]. Competitive Landscape - **Global Capacity Overview**: Major players in the global high-frequency and high-speed electronic copper foil market include Taiwanese companies (Nanya, Chang Chun) and Japanese firms (Mitsui, Fukuda). Specific capacities include Mitsui's 6,000 tons total capacity, with 3,000 tons for HVLP [4][5]. - **Challenges for Domestic Manufacturers**: Domestic manufacturers face challenges in entering the high-end market due to brand reliance and the need for specific imported equipment, which limits their competitiveness against established foreign brands [28]. Future Outlook - **High-End Product Demand Growth**: The demand for high-end HLP copper foil is projected to quadruple by 2026, reaching 400 tons/month, with potential to exceed 1,000 tons/month by 2027 as AI penetration and product upgrades drive growth [21][22]. - **Potential Supply Shortages**: There may be future supply shortages for high-end HLP products, depending on the pace of AI integration and terminal product upgrades, as well as the progress of supply chain certification [23]. Additional Considerations - **Technical Equipment Limitations**: The expansion of production capacity for high-end copper foil is constrained by the need for specialized equipment and technology, which are not readily available [26][27]. - **Production Losses**: Transitioning production from first-generation to fourth-generation copper foil can result in significant capacity losses, highlighting the challenges in meeting evolving market demands [42]. This summary encapsulates the key points discussed in the conference call regarding the electronic copper foil industry, focusing on market dynamics, technological advancements, and competitive challenges.

Core Viewpoint - Defu Technology (301511) is acquiring 100% of Circuit Foil Luxembourg S.a.r.l. (CFL) for a total enterprise value of €215 million, with a net purchase price of €174 million after adjustments, aiming to enhance its position in the high-end electronic circuit copper foil market [1][2] Group 1: Acquisition Details - The acquisition agreement was signed on July 29, 2025, and Defu Technology plans to establish a wholly-owned subsidiary in Luxembourg to manage the acquisition [1] - CFL is recognized as a "hidden champion" in the global copper foil sector, holding advanced technologies in HVLP (Ultra-Low Profile Copper Foil) and DTH (Carrier Copper Foil) [2] - The acquisition will increase Defu Technology's total copper foil production capacity from 175,000 tons per year to 191,000 tons per year, positioning it as the largest producer globally [2] Group 2: Market Position and Strategy - Defu Technology aims to break the long-standing dominance of Japanese and Taiwanese companies in the high-end electronic circuit copper foil market through this acquisition [2] - The acquisition will enable Defu Technology to penetrate international markets and compete with Japanese firms, facilitating domestic substitution in high-end electronic circuit copper foil [2][4] - CFL's production facility in Luxembourg will serve as a strategic base for Defu Technology's global operations, supporting a "Asia-Pacific + Europe and America" sales system [3] Group 3: Financial Implications - CFL's average processing fee income is significantly higher than that of domestic IT copper foil, primarily due to its high-end product offerings [3] - The acquisition is expected to enhance Defu Technology's revenue through higher processing fees and potential improvements in product gross margins via technological innovations [3]