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Green Procurement and Logistics

GC’s procurements are executed in accordance with PTT Group’s Procurement Policy which serves to align procurement operations of PTT Group companies. GC strives to operate our business towards sustainable growth in conjunction with corporate governance for the community, society, and environment. The company also implements the Green Procurement Policy which features the procurement of products or services that produce lower impacts on the environment in comparison with conventional products and services of the same function. The criteria based on ISO 20400:2017 have been applied to the joint procurement of products and services by PTT Group companies, taking into account the entire life cycle, from raw material procurement, production, selection of appropriate energy and technology, packaging, transportation, usage, and end-of-life management.

GC supports procurement that gives special consideration to suppliers offering environmentally friendly goods and services, alongside price, quality, and delivery factors, in order to incentivize and create shared benefits for the company, its suppliers, and society as a whole.

Building Green Network

GC recognizes the importance of creating a green network by exchanging know-how with and developing partners to address environmental, social, and governance issues relating to the company's operations. This encourages a value-added supply chain for all parties that also benefits surrounding communities and the environment. The green network is aligned with supplier relationship management as well as GC's Green Industry Level 5 certification by the Industry Promotion and Development Office in 2015.

GC has continuously organized trainings and meetings with suppliers to build capability and strengthen mutual understanding of sustainability requirements, in line with the value chain management approach under the Operational Excellence Management System (OEMS) of the PTT Group. This program focuses on encouraging suppliers and contractors to develop sound management practices in safety, environment, and sustainable risk management, including mandatory contractor trainings before commencing work and annual supplier conferences. For suppliers that did not pass the assessment, the company also provides guidance and capacity development plans, and monitors their progress through on-site audits or various communication channels such as email, telephone inquiries, and electronic meetings.

In addition, the company supports its suppliers in enhancing their ESG capabilities by sharing relevant information, case studies, and best practices. These resources help suppliers better understand and improve their ESG performance. Suppliers who wish to access more specific information may contact the company for tailored guidance, enabling more effective implementation. Furthermore, the company encourages suppliers to participate in various activities designed to provide deeper insights into ESG trends, regulatory developments, and strategies that can be practically applied.

Procurement of Green Products

The lack or shortage of raw materials is accounted for one of GC's business risks. In order to have a better management on raw material procurement, GC has worked closely with their suppliers in procurement in emergency situation, through monthly meeting with critical suppliers to identify the short term and long term of procurement plan, factory maintenance plan, the monthly performance, the emergency mitigation plan and the procurement of green products.

Green Logistics Programs - Conduct Program to Improve the Environmental Performance of its Logistics and its Fleet Management

GC has collaborated with PTT, main suppliers and other company in PTT group on efficient ocean freight transportation in order to make sure that the companies have complied with safety and environment standards and regulations of sea transportation. This matter is considered to be a proactive action in order to reduce the risks to the operation and to reduce the accidents that might have a major impact to society and environment.

Local Procurement of Products and Services GRI 204-1

GC encourages the procurement of products and services from local sources (referring to procurement within Thailand) and areas where the establishments are located in order to support the local economy, create jobs, and generate income for local people along with efficiently procuring raw materials and promoting the economy and quality of life in the community. The company continuously supports the procurement of products and services from local vendors in Rayong province through the Local Vendor Spending Program. At present, GC supports products and services from local vendors who meet the company’s standards. In 2025, products and services were procured from 47 local communities, which is equivalent to a value of 198 million baht.