Mitsui Chemicals, Idemitsu Kosan, Sumitomo Chemical to integrate PP and LLDPE into Prime Polymer

Mitsui Chemicals, Idemitsu Kosan, and Sumitomo Chemical signed an MOU to integrate Sumitomo Chemical's polypropylene and linear low-density polyethylene businesses in Japan into Prime Polymer, a joint venture of Mitsui and Idemitsu, aiming to strengthen domestic polyolefin competitiveness.

“Mitsui, Idemitsu and Sumitomo Chemical have explored the opportunities for collaboration to strengthen the competitiveness of the domestic PO business, including PP and polyethylene (PE), and have reached a mutual understanding as set forth in the MOU.”sumitomo-chem.co.jp

• 7 sources
• sumitomo-chem.co.jpMitsui Chemicals, Idemitsu Kosan, and Sumitomo Chemical Enter Into MOU on Integration of Sumitomo Chemical's PP and LLDPE Businesses into Prime Polymer, Aiming to Strengthen the Competitiveness of the Domestic Polyolefin Business | Business & Products | SUMITOMO CHEMICALSep 10, 2025
• sumitomo-chem.co.jp国内ポリオレフィン事業の競争力強化に向けた3社基本合意について～プライムポリマーへ住友化学PP、LLDPE事業を統合～ | 事業・製品 | 住友化学株式会社Sep 10, 2025
• mltanalytics.comPrime Polymer, Sumitomo Chemical to Combine Polyolefin BusinessesSep 10, 2025
• chemweek.comPrime Polymer JV to absorb Sumitomo Chemical’s Japanese PP, LLDPE businessesSep 10, 2025
• ptonline.comMerger Consolidates Polyolefin Supply in Japan | Plastics TechnologyMatt StonecashSep 11, 2025
• diamond.jp三井化学・出光・住友化学が汎用樹脂事業を統合へ！市場は無反応も、21年ぶりの大型再編が持つ「あなどれない3大インパクト」とは | 化学サバイバル！ | ダイヤモンド・オンライン

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