Stakeholder Engagement

Stakeholders

PTI is committed to transparent and comprehensive ESG communication. In addition to the annual report and financial disclosures, we publish a yearly ESG Report that details our efforts in corporate governance, economic aspects, environmental aspects, and social aspects. Stakeholders could access timely updates through the company website, PTI ESG fan page, and other social media communication platforms.

Stakeholder Identification

To advance corporate sustainability efforts, PTI established a Sustainable Development Task Force, convened by the Sustainability Development Management Department, and composed of representatives from key departments including finance, procurement, environmental health and safety, plant engineering, human resources, quality management, intellectual property, sales, and research and development.

In alignment with the five core principles of the AA1000SES Stakeholder Engagement Standard, stakeholders are identified based on those who are impacted by or concerned with our sustainability performance. PTI has recognized six key stakeholder categories for focused communication: shareholders/investors, employees, customers, suppliers/contractors, government agencies, and communities.

Stakeholder Communication

PTI engages with stakeholders through a variety of communication channels and mechanisms to foster meaningful dialogue and understand the issues and expectations that matter most to them. We utilize diversified approaches, including social media platforms, to ensure ongoing and responsive interaction with stakeholders.

At least once annually, the company reports stakeholder engagement activities to the Board of Directors. For relevant contact persons and communication details, please visit our “Contact Us” page. For insights into the outcomes of our 2024 stakeholder engagement efforts, please refer to “Chapter 1.3 Stakeholder Engagement” in the PTI ESG Report.

Stakeholders	Importance	Issues of Concern	Means of Communication	Communication Frequency
Shareholders /Investors	The support of our shareholders and investors is a steady source of capital for PTI and the driving force behind the Company’s continuous improvement of sustainable governance.	◆Economic Performance ◆Business Integrity ◆Technology and Service ◆Regulatory Compliance	Shareholder meetings Public financial reports Investor conferences Spokesperson and investor relations department Company website	Annual Quarterly Quarterly As needed As needed
Employee	Employees are PTI’s core driving force. We create a friendly work environment and care about our employees, enabling them to unleash their full potential and grow together with the Company.	◆Compensation and Benefits ◆Human Rights ◆Occupational Health and Safety	Employee mailbox Employee welfare committee Labor-management meetings Occupational Safety and Health Committee PTI Journal Employee opinion surveys Seminars/employee forums E-platforms and company announcements Policy improvement proposals Employee counseling	Permanent Quarterly Quarterly Quarterly Quarterly Monthly sampling Monthly As needed As needed As needed
Customer	PTI pays close attention to customers’ needs and continues innovation to provide high-quality services, help clients meet targets, and achieve mutual growth.	◆Biodiversity ◆Customer Relations ◆Occupational Health and Safety ◆Human Rights	Business meetings Customer satisfaction survey Customer complaint system Customer audit	As needed Annually As needed As needed
Suppliers/Contractors	Suppliers and contractors are PTI’s most important partners for production and services. We continue to enhance and intensify partnerships to attain sustainable management models.	◆Business Integrity ◆Human Rights ◆Occupational Health and Safety	Supplier/contractor meetings Supplier assessment Supplier/contractor audit Supplier/contractor forum	As needed Quarterly Annually Annually
Government Agencies	PTI complies with government regulations and vigorously cooperates with policy implementation, where collaboration and interaction with the government are achieved through transparent communication.	◆Water Management ◆Pollution and Waste ◆Occupational Health and Safety	Official letters and emails Advocacy meetings and hearings by the authorities Issuing official letters	As needed As needed As needed
Communities	PTI interacts with various communities to understand their needs and actively integrate resources to continuously give back to society to the best of our ability, thereby enhancing our positive influence on society.	◆Social Engagement ◆Human Rights ◆Occupational Health and Safety ◆Employee Communication	Company website Contact person from the plant engineering department Courses and visits	As needed As needed As needed