Walsin Lihwa has institutionalized "green transformation" as a mandatory criterion embedded within its formal product development and capital allocation processes, positioning the development of clean technologyNote and green products as a core driver of corporate sustainability. The Company adopts a comprehensive strategy that advances product premiumization starting from its core businesses, while actively constructing a resource-circular industrial ecosystem. On the supply side, the Company implements green procurement management; on the production side, digital transformation and intelligent manufacturing enhance resource utilization efficiency; and on the product side, the Company systematically grows the share of clean technology products, co-creating sustainable commercial value with its customers. In addition, in response to the global energy transition, the Company is proactively expanding into the new energy sector, supporting the resilience of the national power grid, and partnering with value-chain partners to drive low-carbon transition. Through continuous advancement in R&D capabilities, Walsin Lihwa persistently enhances product added value and works toward a net-zero vision.
Note: Clean technology revenue is derived from the Wire and Cable Business Group (solar cables / solar busbar copper conductors, offshore and onshore wind power cables, EV charging gun-cable assemblies, green energy feeder cables, etc.); the Stainless Steel Business Group (heat exchanger fittings (wind power), solar panels (solar energy), fasteners (EV / wind power), seatbelt ball components (EV), automotive bolts (EV), and slag reuse); and the Resources Business Group (nickel for EV batteries).
▪Annual Production Output by Business Group
Advancing High-Value Transformation
Accelerating High-Value Transformation: Building from the Core, Embracing Intelligent Innovation
To accelerate high-value transformation, Walsin Lihwa has simultaneously advanced multiple systematic initiatives across its Wire and Cable Business Group and Stainless Steel Business Group. Key achievements and progress during the year are summarized below.
▪Wire and Cable Business Group Strategies
▪Stainless Steel Business Group Strategies
Clean Technology and High-Value R&D and Investment
In 2025, the Wire and Cable Business Group continued to embed net-zero carbon emissions as a central development priority. The business sustained its R&D efforts for clean technology sectors-including solar energy, wind power, and electric vehicles-developing low-carbon and environmentally friendly materials in alignment with low-carbon policies and sustainable operations. Revenue from clean technology-related products reached approximately NTD 1.02 billion, representing 0.59% of the Company's total revenue for the year. The Wire and Cable Business Group places eco-design and product compliance governance at its core. Product development has fully integrated TÜV (Technischer Überwachungsverein) standards for energy storage, and the business continues to invest in R&D for recyclable materials and low-environmental-impact insulating materials to reduce the carbon footprint across the entire product lifecycle. Overall, the Wire and Cable Business Group pursues "zero-carbon power transmission and distribution" as its long-term objective, supporting energy transition and sustainable infrastructure development through materials innovation, international certification, and high-value product portfolios.
The Stainless Steel Business Group focuses on low-carbon process optimization and circular material applications, continuously investing in R&D for high-corrosion-resistance and high-strength stainless steel materials to minimize environmental impact. The business is also actively developing specialty steels for use in hydrogen energy equipment, renewable energy facilities, and high-purity process environments, enhancing material safety and reliability within the clean technology sector. Overall, the Stainless Steel Business Group pursues "low-carbon, high-value circular materials" as its long-term objective, supporting the net-zero transition and green industry development through process energy efficiency and emission reduction, material upgrading, and alignment with international standards.
High-Performance Products: Characteristics and Application Fields
Highlights
Achievements in Clean Technology and High-Value R&D
Wire and Cable Business Group
[Hsinchuang Plant] Aligning with Localization Policy: 100% Taiwan-Made EV Charging Gun-Cable Assemblies Driving the Green Mobility Ecosystem
In response to the Ministry of Economic Affairs' December 2023 announcement under the "Taiwan MIT Smile Product Certification System", which mandates the use of domestically produced components in EV charging gun-cable assemblies, Walsin Lihwa established localization and domestic manufacturing as core strategies from the earliest stage of EV charging gun-cable assembly development. This approach strengthens component quality control and reduces carbon emissions associated with long-distance transportation. The EV charging cables and gun-cable assemblies produced at the Hsinchuang Plant have obtained UL and IEC international safety certifications as well as domestic VPC (Voluntary Product Certification), ensuring compliance with national standards and policy requirements in terms of safety, regulatory conformance, and reliability-making Walsin a preferred choice for domestic charging station operators. In 2025, the Company continued to invest in the R&D of liquid-cooled charging gun-cable assemblies for high-current fast-charging applications, conducting extended in-house system integration and durability testing to ensure product compliance with relevant safety standards and regulatory requirements under high-load operating conditions, meeting the market's demand for high-power, low-carbon charging solutions.
[Hsinchuang Plant] Taiwan's First Qualified Supplier of Offshore Wind Turbine Tower Internal Cables
Since 2012, the Hsinchuang Plant has been developing industrial-grade cables, focusing on renewable energy applications such as solar and offshore wind power, including high-reliability tower internal cables for wind turbines. These cables must meet stringent requirements for torsional resistance, extreme temperature tolerance, and environmental corrosion resistance. To ensure long-term stable performance, the plant has established dynamic and low-temperature torsion simulation testing equipment and continuously optimizes cable structures and material formulations. By participating in the offshore wind power localization program and collaborating with international wind turbine manufacturers, Walsin completed product certification for 9.5MW wind turbine tower internal cables and commenced mass production and delivery from 2022, completing deliveries in 2024. The high-voltage tower internal cables for 14MW wind turbines also obtained certification in 2024, with full phase-order shipments completed in 2025 to meet customer demand. With its accumulated track record in R&D, testing, and mass production, Walsin has become Taiwan's first cable manufacturer qualified to supply tower internal cables for offshore wind turbines, continuously supporting the cable supply needs of renewable energy and low-carbon power infrastructure.
[Hangzhou Plant] PV-Dedicated DC Cable
Hangzhou Walsin Power Cable & Wire Co., Ltd. (Hangzhou Walsin) formally launched its proprietary R&D initiative for PV-dedicated DC cables in 2025. These cables must exhibit high-performance characteristics including weatherproofing, cold and heat resistance, UV resistance, and acid-alkali resistance. To ensure product quality, the Company benchmarked against various product and material standards, conducted technical exchanges with leading domestic raw material suppliers, and selected the optimal material solution through multiple small-sample trials. The products have been submitted to TÜV Rheinland (Shanghai) Co., Ltd. for authoritative testing. TÜV Mark certification and CE-LVD certification are expected to be obtained by March 2026, with the project targeting mass shipment in 2026.
Stainless Steel Business Group
[Yenshui Plant] Nickel-Based Alloy Development
The Company has developed nickel-based alloys containing nickel (Ni), chromium (Cr), molybdenum (Mo), titanium (Ti), and copper (Cu). The inclusion of Mo and Cu imparts excellent corrosion resistance across diverse corrosive environments, making the alloys suitable for the oil and gas and chemical industries.
Resources Business Group
In the first quarter of 2025, PT. Walsin Nickel Industrial Indonesia formally implemented the "Coking Gas Recovery and Rotary Kiln Optimization Retrofit Project", substituting coke oven gas for coal and simultaneously advancing rotary kiln system process optimization. By pursuing improvements on both the energy structure and process efficiency fronts, the project systematically reduces greenhouse gas (GHG) emissions from the production process. Following implementation, coke oven gas has successfully replaced the primary consumption of coal, significantly enhancing energy use efficiency and delivering measurable carbon reduction outcomes. In mid-January 2026, the Company participated in the "2025 ESG Co-Construction Summary Conference" organized by the United Nations Industrial Development Organization (UNIDO) and the Indonesia Weda Bay Industrial Park (IWIP), where it received the "Low-Carbon and Energy Efficiency Pioneer Award" in recognition of its concrete achievements in process technology improvement and carbon management. The Company will continue to deepen its low-carbon transformation through process optimization and management innovation, embedding ESG principles into day-to-day operations as a solid foundation for sustainable corporate development.
Intellectual Property Protection
Through the promotion of the Taiwan Intellectual Property Management System (TIPS) certification and the integration of the latest corporate governance assessment indicators for IP management, Walsin Lihwa has established a systematic mechanism for the acquisition, protection, maintenance, and utilization of the Company's intellectual property (IP). Since adopting the TIPS framework and its associated standards in 2020, the Company has continuously identified and protected its patents, trademarks, and other intellectual property rights. Measures implemented include introducing incentive mechanisms to encourage innovation, conducting regular IP-related training programs, refining IP management processes, and strengthening contract review procedures. The Company has consistently obtained TIPS Level A certification, with the current certification valid through 2027.
Implementation Practices
- R&D and technology-related information is stored in a dedicated confidential database with access controls in place; all relevant files and documents are marked with appropriate confidentiality classifications.
- A set of regulations and controls governing the external provision of confidential information has been established. Such information may only be disclosed after undergoing an approval process and complying with confidentiality marking requirements.
- During new product development, patent searches are conducted to verify that no third-party patents are infringed. Where potential infringement is identified, a design-around strategy is evaluated and executed.
