PTTGC and SCC move ahead with olefins joint venture, terms expected by October 2026

HoonVision·1 Oct 2026·

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M&A · Partnership Corporate Action Chemicals

PTTGC.BK ▲

SCC.BK ▲

Summary · why it matters

PTT Global Chemical, or PTTGC, and Siam Cement Group, or SCC, announced that discussions on establishing a joint venture for olefins and polyolefins businesses in Thailand have entered the due diligence stage to verify information. This marks clear progress from the signing of a non-binding memorandum of understanding in April. The proposed joint venture would combine nearly all of the two groups' core olefins and polyolefins assets in Thailand. PTTGC would contribute its olefins production plant, its polyethylene, or PE, production plant, and its investment in HMC Polymers Company Limited. SCC would contribute its olefins production plant in Thailand, its PE and polypropylene, or PP, production plants, as well as SCGC's investments in various joint ventures, namely Siam Polyethylene Company Limited, Siam Synthetic Latex Company Limited, Thai MMA Company Limited, and Bangkok Synthetics Company Limited. PTTGC is expected to be the major shareholder in the joint venture, while SCGC would remain a significant shareholder. Key terms of the transaction are expected to be clarified by October 2026, including the shareholding structure, transaction procedures, and the expected value of the collaboration. After that, requests will be submitted to the Trade Competition Commission, as well as for internal approvals, shareholder approvals, and approvals from partners in the relevant joint ventures.

PTT Global Chemical Public Company Limited ▲

The Siam Cement Public Company Limited ▲