Sustainability
Sustainability
Products and Services
TSC is mainly engaged in the manufacturing of Rectifiers, Transistors and LED Drivers, Assembly, Testing, and After-sales Service. Our products include Power Management ICs, Rectifiers, ESD Protection Devices, Bridge Rectifiers, MOSFETs, IGBTs, Trigger Diodes, and Silicon Controlled Rectifiers, which mostly are the automotive market (including gasoline and electric vehicles), industrial market (charging piles, power tools, pneumatic device equipment), and telecom market (5G, IoT).
Being an Integrated Device Manufacturer (IDM) is one of our competitive advantages. We provide end-to-end services, from R&D, production, to assembly, testing, and sales. This integrated approach optimizes the manufacturing process and reduces communication errors.
Building a Diversified, Differentiated, and Competitive Product Profolio
Starting in 2024, we accelerated product development by restructuring R&D resources, creating dedicated teams for core and new products, and assigning exclusive teams to each goal. Leveraging in-house chip design and automated assembly, TSC invests in Schottky rectifiers, Fast Recovery Diodes (FRED), Transient Voltage Suppressors (TVS), MOSFETs, ESD protection devices, and low dropout/low-power automotive regulators.
We are developing next-generation Trench Schottky Rectifiers, FREDs, Super Junction MOSFETs, and Shielded Gate Technology (SGT) MOSFETs to reduce conduction and switching losses, addressing demand for eco-friendly, energy-saving applications. These are applied in automotive electronics, industrial, telecommunications, and energy sectors. ESD protection R&D focuses on compliance with in-vehicle communication and Ethernet standards.
In third-generation semiconductors, we launched SiC Schottky diodes and are developing SiC MOSFETs. We are also producing lowpower, high-output automotive power supplies, with some models developed in-house. Products are progressively passing automotive qualification, to strengthen quality and customer trust.
Quality Excellence Roadmap
To ensure product quality and process reliability, TSC launched the “Quality Excellence Roadmap” in 2017. Aligned with automotive quality standards, the roadmap introduces a Zero Defect Strategy, riskbased management, and process robustness in phased implementation.
By integrating advanced technologies and promoting cross-functional collaboration, TSC continuously strengthens its quality management capabilities. The Company upholds global certifications such as IATF 16949 and ISO 9001, reinforcing its commitment to continuous improvement, defect prevention, and delivering high-quality products to the global automotive market.
Automotive Supplier Audit
To ensure product quality in the automotive supply chain, TSC classifies its automotive suppliers into four categories and conducts regular audits based on VDA 6.3 and ISO 9001 standards. Audit formats include on-site, online, and documentation reviews. In 2024, TSC audited nine automotive suppliers, with no major non-conformities identified—demonstrating solid supplier quality performance.
If non-conformities arise, suppliers must submit and implement corrective action plans within a specified timeframe. TSC conducts follow-up reviews to verify improvements. For systemic issues, the Quality Assurance and Procurement teams support root cause analysis and provide technical guidance. Repeated non-compliance may lead to re-audits or adjustments in cooperation strategy.
Chemical Substance Control and Disclosure
TSC uses various chemical substances in its production processes, posing potential risks to human health and the environment. As international regulations and customer expectations on chemical control rise, TSC recognizes the importance of transparent chemical management throughout R&D, design, and manufacturing.
To support this, TSC has established a Materials Composition Declaration (MCD) system on its official website, allowing customers and stakeholders to access product composition data via a selfservice portal. In 2024, TSC completed full material disclosure for 10,064 products, achieving a 99% disclosure rate by weight, surpassing the 98% target.
Moving forward, TSC will continue expanding its material database and analyzing high-risk substances to strengthen its commitment to producing environmentally friendly products.
Hazardous Substances Management
TSC considers hazardous substance management essential to sustainable operations and customer trust. We strictly comply with international regulations, including EU RoHS and REACH, and have established the TSC Environmental Compliance database to manage such substances. We also disclose hazardous substances in response to customer needs, supporting customers in expanding the green product market.
A full list of applicable environmental regulations is available on our website under Environmental Regulatory Compliance. In 2024, certain products contained declarable substances under IEC 62474, in accordance with the EU RoHs and REACH regulations, which still permit the use of specific substances for which no alternatives currently exist. TSC continues to monitor regulations and explore safer substitutes. Suppliers are also required to comply, and documentation is reviewed
annually.
TSC ensures product safety through ISO 9001 and IATF 16949 systems, incorporating PDCA reviews and customer-specific requirements into development and production. In 2024, all products and packaging met regulatory and customer requirements, with zero violations, no safety-related incidents, and no labeling non-compliance.
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