Sustainability

Responsible Procurement

TSC regards suppliers as mutually supportive partners. In addition to jointly supporting the vision and goals of the Responsible Business Alliance (RBA), TSC also promotes sustainable supply chain assessments. All suppliers are required to sign the RBA Vendor Code of Conduct, which sets clear standards in areas such as labor, health and safety, environmental protection, and business ethics. Together, we aim to safeguard labor rights, prevent discrimination and harassment, ensure occupational safety, uphold environmental responsibility, operate with integrity, and avoid the use of minerals sourced from conflict-affected regions, in pursuit of building a sustainable supply chain. TSC strives to exert a positive influence on green operations while consolidating its core business operations.

Policy and Commitment

  • Collaborate with suppliers across QDCST (Quality, Delivery, Cost, Service, Technology) to ensure operational stability and strengthen customer service.
  • In line with the RBA Code of Conduct, TSC promotes ESG practices with suppliers to enhance sustainability competitiveness.

Management Approach and Evaluation Mechanism

  • Follow the RBA Code of Conduct and requires suppliers to comply with laws and standards on labor, health and safety, environment, and ethics.
  • The Code is regularly updated per the latest RBA version and published on TSC’s website.
  • Supplier management and evaluation follow the Regulations Governing Vendor Management.
  • Monitor potential supply chain risks and activate Business Continuity Management (BCM) when necessary to ensure stability.

Supply Chain Management Measures and Strategies

Sustainable supply is a key element of TSC’s supply chain strategy. In response to increasing geopolitical uncertainty, TSC prioritizes supplier diversification, inventory monitoring, and Business Continuity Management (BCM) to mitigate risks and maintain operational continuity.

The Supply Chain Management Department centrally integrates procurement across all sites, overseeing resource planning, demand forecasting, production, and delivery. Regular production-sales cycles and a dedicated platform ensure efficient coordination, streamlined operations, and compliance with internal controls. To strengthen supply continuity, flexible inventory policies are applied based on market trends and product demand. Since implementing the BCM system in 2023, TSC developed secondary sources for three critical materials in 2024 to reduce procurement risk. Each site works closely with headquarters to assess risks and align upstream strategies.

Additionally, TSC collaborates with customers via contracts and digital platforms to improve information exchange, enhance transparency, and boost responsiveness. These efforts reduce costs, improve efficiency, and ensure a flexible and resilient supply chain.

Supplier Sustainability Impact Assessment

TSC continues to enhance supply chain resilience and sustainability by evaluating suppliers not only on technical capabilities, delivery, quality, and cost, but also across economic, environmental, and social dimensions, aligning with the Company’s risk management and sustainability principles.

Since 2017, TSC has adopted the Responsible Business Alliance (RBA) standards and established the RBA Vendor Code of Conduct. This Code, approved by the Chairman, requires suppliers to comply with local regulations and adhere to clear standards across labor rights, occupational safety, environmental protection, and business ethics. Each site’s procurement team monitors supplier compliance and reports any violations to the Supply Chain Management Department.


In 2024, TSC launched internal training to reinforce understanding of the updated Code, which will be published on the corporate website in 2025. New suppliers are required to sign the Code and undergo evaluation under the Vendor Management Regulations. These assessments include environmental and social impact records, as well as certifications such as ISO 14001 and ISO 45001. All suppliers passed the environmental and social evaluation criteria in 2024, with no significant negative impacts identified. TSC also closely monitors regulatory and geopolitical developments that may affect material sourcing—for example, steel restrictions due to the Russia-Ukraine war, export controls amid U.S.-China trade tensions, and human rights-related origin investigations concerning Xinjiang. In response, TSC has implemented relevant policies, due diligence processes, and origin declarations to ensure service quality and customer trust.


For details regarding conflict minerals (tantalum, tin, tungsten, and gold), please refer to the website.

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