Thailand Chemical & Petrochemical Market Intelligence
SEA's #2 chemical market; PTTGC, IRPC, IVL, SCG Chemicals. Map Ta Phut complex anchor; USD 50-60B revenue; olefins, aromatics, polymers cyclical cycle.
Key takeaways
- 1
Thai chemical, petrochemical sector is Southeast Asia's #2 market after Indonesia at roughly FY2024 revenue, down from the peak in 2022 as Chinese ethylene, polyolefin capacity adds compressed regional spreads.
- 2
Listed stack: PTT Global Chemical (SET: PTTGC) booked FY2024 revenue but a net loss as olefin, polymer margins thinned; Indorama Ventures (SET: IVL) delivered FY2024 EBITDA (+ YoY) under its IVL 2.0 restructuring; IRPC (SET: IRPC) integrated refining, ABS, PS, EPS.
- 3
Map Ta Phut, Rayong is the anchor cluster β shared natural-gas feedstock, port access at Map Ta Phut Industrial Port, Laem Chabang, and BOI, EEC tax holidays for upstream petchem, specialty, bio-based capacity.
- 4
Capacity discipline is now the operator playbook: IVL 2.0 announced closure of six 'West' assets (Rotterdam PET, PTA shut April 2024); SCG Chemicals booked a FY2024 loss on Long Son Petrochemicals Vietnam (commissioned September 2024, temporarily idled October 2024) and pivoted to a ethane-feedstock conversion targeting + unit-cost reduction.
- 5
Our read: PTTGC = integrated scale, feedstock advantage but cycle-exposed; IVL = global PET specialty platform with a different cycle but mid-restructure; IRPC = refinery-margin play; SCGC = ASEAN regional growth bet on Vietnam ethane. Binding variables: Chinese capacity rationalisation, EU CBAM Phase 2 polymer scope, naphtha vs. ethane economics, EEC bio-refinery, specialty pivot.
Executive summary
Thailand's chemical, petrochemical sector is Southeast Asia's second-largest after Indonesia, generating roughly in FY2024 revenue. The value chain spans naphtha- and gas-fed crackers (olefins) and aromatic intermediates upstream, commodity polymers (HDPE, LDPE, LLDPE, PP, PVC, PET, PS) midstream, and specialty chemicals, formulations, converter feedstock downstream. Production is concentrated at the Map Ta Phut industrial complex in Rayong, with Indorama Ventures globally distributed.[, , ]
The listed stack carries the sector's reported scale. PTT Global Chemical (SET: PTTGC) is the integrated leader within the PTT group, spanning ethylene, propylene, benzene, polyethylene, polypropylene, and the Allnex specialty coatings platform; FY2024 revenue was but the segment turned a net loss of as olefin-naphtha spreads compressed. IRPC (SET: IRPC) is refinery-linked, anchoring ABS, PS, EPS polymer downstream. Indorama Ventures (SET: IVL) is globally diversified across PET, PTA, fibres, packaging, with a circa 30-country footprint β far less Thailand-concentrated. SCG Chemicals (SCGC, listed 2023) is the Siam Cement Group polymer arm centred on Map Ta Phut and the Long Son Petrochemicals (LSP) complex in Vietnam.[, , , ]
The 2024-2025 cycle is defined by Chinese capacity overhang. Global ethylene capacity rose more than 40Mt between 2020 and 2025 (around of it in China) while demand grew only roughly 27Mt; S&P Global estimates approximately of global ethylene capacity is now at structural closure risk. Thai operators responded with capacity discipline (IVL 2.0 plant rationalisation, IRPC asset reviews) and a specialty, circular pivot. Forward variables: EU CBAM Phase 2 polymer scope (decision pending, exposure window 2026-2030), Map Ta Phut Phase 4 EEC capex, gas-feedstock allocation under PDP2024, and SCGC's ethane-conversion play at Long Son.[, , , ]
Thai chemical, petrochemical sector revenue (USD B, 2020-2024)
2020
Revenue (USD B)
42
Context
COVID trough; demand, freight dislocation
2021
Revenue (USD B)
48
Context
Recovery; tight container, commodity price strength
2022
Revenue (USD B)
55
Context
Peak cycle; polymer, aromatic spreads at multi-year highs
2023
Revenue (USD B)
52
Context
Chinese capacity wave begins; spread compression
| Year | Revenue (USD B) | Context |
|---|---|---|
| 2020 | 42 | COVID trough; demand, freight dislocation |
| 2021 | 48 | Recovery; tight container, commodity price strength |
| 2022 | 55 | Peak cycle; polymer, aromatic spreads at multi-year highs |
| 2023 | 52 | Chinese capacity wave begins; spread compression |
| 2024 | 50 | PTTGC net loss FY2024; IVL EBITDA recovery on restructuring; LSP idled |
Segment mix (% of FY2024 revenue)
Chemicals, specialty (coatings, MMA, performance)
Downstream petrochem (resins, additives, vinyls, styrenics)
Share %
Notes
Vinythai PVC, HMC PP-JV, BST styrenics
| Segment | Share % | Notes |
|---|---|---|
| Olefins, polyolefins (HDPE, LDPE, LLDPE, PP) | 40% | PTTGC, SCGC dominate |
| Aromatics (PX, PTA, PET, benzene chain) | 25% | IRPC, IVL integration |
| Chemicals, specialty (coatings, MMA, performance) | 20% | Allnex (PTTGC), specialty resin producers |
| Downstream petrochem (resins, additives, vinyls, styrenics) | 15% | Vinythai PVC, HMC PP-JV, BST styrenics |
Operator snapshot
SET: PTTGC
PTTGC
Integrated leader; FY2024 revenue $10.9B, net loss $536.2M; Map Ta Phut anchor; Allnex specialty coatings; aromatics, phenol chain EBITDA margins near 18%.
SET: IVL
Indorama Ventures
FY2024 EBITDA USD 1.41B (+26% YoY); IVL 2.0 restructuring; Rotterdam PET, PTA shut April 2024; six 'West' assets under review; CPET segment EBITDA USD 1.01B.
SET: IRPC
IRPC
215kbpd refinery integrated with aromatic, ABS, PS, EPS polymers; downstream specialty pivot; PTT-group majority owned.
SCC subsidiary, listed 2023
SCG Chemicals (SCGC)
FY2024 loss $298.6M on LSP Vietnam; LSP COD September 2024, idled October 2024, restart Q3 2025; USD 700M ethane-feedstock pivot.
Analyst framing
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Key figures
Selected anchors from the report evidence pack.
Thai chemical and petrochemical sector revenue (2020-2024)
FTI Petrochemical Industry Club, NESDC National Accounts, PTTGC/IRPC/IVL/SCGC annual reports
PTT Global Chemical (PTTGC) revenue (2020-2024)
PTTGC, SET annual filings, Allnex acquisition disclosures
Indorama Ventures (IVL) EBITDA (2020-2024)
Indorama Ventures, IVL quarterly earnings releases, Bloomberg Intelligence chemicals coverage
Thai ethylene cracker capacity utilisation (2020-2024)
S&P Global Chemicals / IHS Markit, PTTGC and SCGC quarterly operating reports, Petrochemicals Asia
China ethylene capacity at structural closure risk
S&P Global Chemicals, IHS Markit Olefins Outlook, PTTGC FY2024 investor presentation, SCGC FY2024 deck
EU CBAM Phase 2 Thai polymer exposure
European Commission CBAM regulation EU 2023/956, Thai Customs export statistics, IVL/PTTGC/SCGC investor disclosures, FTI Petrochemical Industry Club
SCGC Long Son Petrochemicals (LSP) Vietnam operating loss
SCG, SCGC investor presentation, Bangkok Post petrochemical coverage
Thai petrochemical bio-based and net-zero targets
PTTGC Sustainability Report, SCGC Climate Strategy disclosure, Indorama Ventures rPET commitments, Thai government COP26 commitments
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