Performance Results for the Year 2025 (Annual Supplier Assessment)

In 2025, the Company and its subsidiaries established an annual supplier audit plan, utilizing Supplier Self-Assessment questionnaires and scheduling ESG On-site Audits. Over the past year, the Company conducted on-site audits for three key partners: Sikarin Public Company Limited (Healthcare and Medical Services), Durbell Company Limited (Consumer Goods Distribution), and Iron Mountain (Thailand) Company Limited (Document Storage and Management Services). The audit results for all three companies were rated as 'Excellent,' demonstrating their commitment to comprehensive ESG business practices. Furthermore, the subsidiaries conducted on-site visits to 32 additional suppliers, all of whom are identified as Critical Tier-1 Suppliers. The Company has therefore developed a comprehensive sustainability audit and engagement plan to encourage our partners to integrate Environmental, Social, and Governance (ESG) principles into their operations. This initiative not only strengthens the relationships between the Company and its suppliers but also fosters collaborative opportunities for long-term sustainable business development

Premier Marketing Public Company Limited reinforces its commitment to sustainable business practices by completing its 2025 ESG On-site Audits for key strategic partners. The company is pleased to announce that all audited partners achieved an "Excellent" rating, demonstrating a shared vision for Environmental, Social, and Governance (ESG) excellence.

Throughout 2025, the audit team conducted comprehensive on-site evaluations to ensure compliance with sustainability standards and ethical business operations. The schedule and partners involved included:

• Q1/2025: Sikarin Public Company Limited – Recognized for its excellence in Corporate Governance. The company demonstrated a strong commitment to employee well-being by actively conducting internal surveys to gather feedback and suggestions, supported by clear roadmaps and goals for Employee Care.
• Q3/2025: Durbell Co., Ltd. – Distinguished by its comprehensive approach to Employee Engagement, utilizing surveys to address diverse staff needs. Durbell also maintains clear targets in multiple dimensions, including Environmental Management, flexible employee welfare programs, and a strong emphasis on educating and adhering to an international-standard Code of Conduct.
• Q4/2025: Iron Mountain (Thailand) Ltd. – Highlighted for its robust Corporate Governance and ambitious environmental leadership. The company has officially announced its Net Zero greenhouse gas emissions target and operates strictly in accordance with recognized international standards.

Driving Sustainability Through Collaboration

The "Excellent" results from all three partners reflect Premier Marketing’s proactive approach to risk management and its dedication to fostering a "Green Supply Chain." By working closely with partners like Sikarin, Durbell, and Iron Mountain, the company ensures that its business ecosystem remains resilient, transparent, and socially responsible.

Sikarin Public Company Limited

Durbell Co., Ltd.