Supplier Management Policy
Sitronix is committed to driving a positive circulation in the industry and alongside the supply chain, actively cooperating with suppliers and partners to establish a supplier quality management mechanism, and jointly taking corporate social responsibilities with suppliers in the areas of environmental protection, occupational safety and health, and labor human rights to enhance its sustainable performance.
Quality Management Mechanism
The Company has implemented ISO 9001 quality management system to carry out quarterly evaluation and annual audits of our suppliers according to the “Supplier Management Procedures”.
New suppliers: They are evaluated in terms of delivery, quality, cost, process capability and occupational safety system. The new domestic and foreign suppliers approved by the Company are required to maintain quality systems and occupational safety system, and carry out on-site audits, including environmentally friendly products, environmental safety, and social responsibility. If the audit results do not meet the requirements, all issues identified in the audit shall be corrected and improved within three months, and the evaluation team shall implement quality system and on-site audits again; if the revalidation still fails, the new supplier will be disqualified.
Qualified Suppliers: They are evaluated in terms of delivery, quality, cost, and engineering services. And their scores will directly affect the awarded contracts. For those who have failed to pass the evaluation, an evaluation team will be assigned to audit the quality systems and sites. If the suppliers still fail, they will be removed from the list of qualified suppliers. The qualified suppliers will be subject to annual audits, and the failed suppliers must complete all corrective improvements within 3 months for the evaluation team to audit the quality systems and sites again. If the qualified suppliers have used any forbidden substances in production, they will be disqualified.
Environmental Protection
Control of environmentally restricted substances: Sitronix has summarized chemical substances that are hazardous to the ecology, environment and human body in accordance with national regulations and customer requirements. Our company has established the “Management Procedures for Environmentally Restricted Substances”, which specifies that all raw materials and packaging materials used by the suppliers must fully comply with the EU RoHS (Directive 2011/65/EU)/REACH SVHC/Packaging Material Waste (Directive 94/62/EC) Directive/Halogen Free Directive and customers’ requirements for green environmental protection, and they shall also sign the “Declaration of Not Using Environmentally Hazardous Substances by Suppliers” and providing third-party inspection reports to jointly enhance corporate social responsibilities.
Suppliers are required to be ISO 14001 certified and, if not, they shall have plans to complete the certification.
Occupational Safety and Health and Human Rights Protection
We have implemented ISO 45001 occupational health and safety management system. Suppliers are required to pass ISO 45001 certification or comply with laws and regulations for occupational safety and health and labor protection, as well as other relevant regulations and human rights rules such as no child labor regulations.
Implementation
| Status of Suppliers in the Quarterly Evaluation in 2025 | |
| Passing Rate | 100% |
Status of Certification of Suppliers in 2025
| Item | Obtaining/Complying with Statistics | |
| Quality Management | ISO 9001 Quality Management System | 100% |
| IATF 16949 Automobile Industry Quality Management System | 86% | |
| Environment Protection | ISO 14001 Environmental Management System | 100% |
| QC 080000 or SONY GP Hazardous Substance Management System | 67.57% | |
| Occupational Safety, Health, and Labor Rights Protection | ISO 45001 Occupational Health and Safety Management System | 89.19% |
| Environmental Matters Management Standards | RoHS /HF/ REACH | 100% |
| Information Security | ISO 27001 International Information Security Management Certification | 75.68% |
Average Score of Suppliers in the Past Three Years
| Average Score of Suppliers in the Past Three Years | |
| 2024 | 97.49 |
| 2024 | 97.49 |
| 2025 | 96.88 |
Supplier Code of Conduct
Our company is focused on international, industry, and customer sustainability issues and seeks to understand the potential ESG risks that our suppliers might face. In addition to the previously mentioned quality management mechanisms, in 2025 we referred to the “Responsible Business Alliance (RBA) Code of Conduct 8.0” to establish our own “Supplier Code of Conduct.” This code not only manages the integration of new suppliers, but also requires existing suppliers to review the content, sign an acknowledgement, and follow to the Code. Suppliers’ response status:
| Description of the Status | Percentage of Target Achievement |
| Already a member of RBA or provide valid RBA verification | 22.22% |
| Signed Sitronix’s “Supplier Code of Conduct” | 60.00% |
|
i. Provide a self-declaration of compliance with the RBA ii. Provide a “Supplier Code of Conduct ”developed by its respective company, which has been reviewed extensively to cover the items outlined in the RBA Code of Conduct. |
17.78% |
Supplier Due Diligence
Through the annual audit questionnaire, the Company conducts human rights due diligence and on-site audits for major suppliers, implemented by the Packaging and Outsourcing Resource Management function. The assessment covers suppliers’ adherence to key human rights standards, including the prohibition of child labor, forced labor, discrimination and harassment; the provision of humane treatment; and compliance with wage, benefits, and working hours requirements, in order to evaluate suppliers’ human rights management practices. The results of the questionnaire are incorporated into the annual audit performance evaluation. Suppliers rated as non-compliant based on the evaluation results are required to complete corrective actions for all identified deficiencies within three months. The Company will arrange for an evaluation team to conduct follow-up on-site audits to verify the implementation of improvement measures. In addition, the Company has established a reporting mailbox on its website to provide both internal and external stakeholders with an effective communication and grievance mechanism. The Company places a high priority on the protection of stakeholder confidentiality and information security and offers anonymous reporting channels to mitigate the risk of retaliation, thereby enabling stakeholders to report concerns or misconduct. The status of supplier due diligence in 2025 is as follows:
Scope of assessment: Major suppliers of Sitronix Technology Corp.
Implementation Procedures:
| Procedure | Description |
| 1. Integration | Incorporate responsible business conduct into the supplier management system. |
| 2. Identification and Assessment | Identify and evaluate the positive and negative human rights impacts of suppliers on the Company’s operations. |
| 3. Monitoring | Track and maintain visibility over suppliers’ actual operating conditions. |
| 4. Communication | Where material deficiencies are identified during audits, the Company will conduct follow-up to ensure that corrective actions have been effectively implemented. |
Based on the documentation provided by major suppliers in 2025 and the results of relevant reviews, no risks of human rights violations were identified across the six aforementioned metrics. Nevertheless, to further strengthen human rights management within the supply chain, the Company plans to enhance its human rights risk classification mechanism. This initiative aims to more precisely identify suppliers’ management practices and implementation performance on human rights issues, thereby enabling the Company to formulate appropriate risk prevention, mitigation, and, where necessary, remediation measures, and to continuously improve the quality of human rights governance across the supply chain.
No conflicting metals
The Company seriously takes minerals from Congo and its surrounding countries (Sudan, Uganda, Rwanda, Burundi, United Republic of Tanzania, Zambia, Angola, and Central African Republic) or areas of conflict controlled by illegal military forces. The illegal mining profits made by local military forces are stolen from local citizens and result in human rights violations and environmental degradation. We hereby guarantee that the metals used in the products supplied by our suppliers are not sourced from Congo and its neighboring countries, as well as conflict minerals from any areas controlled by armed forces within these countries, and we continue to monitor our direct supply chain sourcing practices to avoid the use of conflicting metal raw materials. In 2025, we issued a ” Statement of Conflict Minerals ” to our suppliers, asking them to sign, comply with, and confirm that Sitronix will continue to conduct reasonable investigations into the source countries of minerals. The signing rate* reached 100%.
*Includes suppliers who, though not signing, provided their own statements.