Leading Companies in Thailand | Major Players 2026

Leading Plastics Companies in Thailand

The following is a data-backed list of the leading Plastics Companies in Thailand, compiled through 6Wresearch's proprietary research and validated by in-house industry analysts. Indorama Ventures, PTT Global Chemical currently lead the competitive landscape, alongside several other established players shaping the Thailand Plastics Market.

List of in Thailand:

1. Indorama Ventures Public Company Limited

Indorama Ventures is a global intermediate petrochemicals producer and the world's largest manufacturer of PET resins, operating extensive integrated polyester, yarn, and chemical recycling infrastructure globally and across Thailand.

2. PTT Global Chemical Public Company Limited (GC)

PTT Global Chemical, the flagship petrochemical arm of PTT Group, is Thailand's largest integrated petrochemical and refining company, producing high-grade olefins, aromatics, polyethylene, and eco-friendly bio-based chemical products.

3. SCG Chemicals Public Company Limited (SCGC)

SCG Chemicals, a subsidiary of Siam Cement Group, is a leading integrated petrochemical company in Southeast Asia, manufacturing polyolefins (PE and PP), PVC, and advanced chemical solutions for industrial and CPG packaging applications.

4. IRPC Public Company Limited

IRPC Public Company Limited, a member of PTT Group, operates an integrated petrochemical and petroleum refining complex in Rayong, producing polyolefin resins, specialty styrenics, and synthetic rubber compounds.

5. HMC Polymers Company Limited

HMC Polymers, a joint venture involving LyondellBasell and Thai partners, is the pioneer and first producer of polypropylene (PP) resins in Thailand, manufacturing advanced PP materials for automotive, healthcare, and flexible packaging sectors.

6. Eastern Polymer Group Public Company Limited (EPG)

Eastern Polymer Group is a major manufacturer and exporter of polymer and plastic products, specializing in thermal insulation materials (Aeroflex), automotive accessories (Aeroklas), and rigid plastic packaging (EPP).

7. AJ Plast Public Company Limited

AJ Plast Public Company Limited is a leading Southeast Asian producer of biaxially oriented packaging films, supplying BOPP, BOPET, BOPA (Nylon), and Metallized films for food packaging, electronics, and industrial labeling.

8. Polynet Public Company Limited

Polynet Public Company Limited is an integrated plastic, rubber, and silicone molding manufacturer in Thailand, producing high-precision engineering components for automotive, medical equipment, and consumer product OEMs.

9. TPAC Packaging (Thailand) Public Company Limited

TPAC Packaging (part of Thai Plaspac PCL) is a premier rigid plastic packaging manufacturer specializing in custom injection-molded containers, closures, and engineered bottles for healthcare, personal care, and food industries.

10. Polyplex (Thailand) Public Company Limited

Polyplex (Thailand) PCL, a subsidiary of India's Polyplex Corporation, is a major manufacturer of thin-gauge BOPET films, cast polypropylene (CPP) films, and sustainable packaging substrates operating out of Rayong.

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