# Mitsui Chemicals, Idemitsu Kosan, Sumitomo Chemical get JFTC clearance for PP/LLDPE integration into Prime Polymer

Mitsui Chemicals, Idemitsu Kosan, and Sumitomo Chemical received Japan Fair Trade Commission clearance for the integration of Sumitomo Chemical's polypropylene and linear low-density polyethylene businesses into Prime Polymer, a joint venture of Mitsui and Idemitsu.

- Type: Acquisition
- Announced: 2026-04-24
- Where: Japan
- Status: announced
- Products: polypropylene, linear low-density polyethylene
- Sectors: [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [Idemitsu Kosan](https://endata.com/companies/19808.md) (acquirer)
- [Idemitsu Kosan](https://endata.com/companies/19808.md) (partner)
- [Mitsui Chemicals](https://endata.com/companies/19809.md) (acquirer)
- [Mitsui Chemicals](https://endata.com/companies/19809.md) (partner)
- [Sumitomo Chemical](https://endata.com/companies/20503.md) (partner)
- [Sumitomo Chemical](https://endata.com/companies/20503.md) (target)
- [Prime Polymer](https://endata.com/companies/31997.md) (acquirer)

## Sources

- [sumitomo-chem.co.jp](https://www.sumitomo-chem.co.jp/english/news/detail/20260424e.html), 2026-04-24: "notice has today been received from the Japan Fair Trade Commission that it will not issue a cease-and-desist order."
- [jftc.go.jp](https://www.jftc.go.jp/en/pressreleases/yearly-2026/April/260424.html), 2026-04-24: "The JFTC concluded that the proposed transaction would not substantially restrain competition in any particular fields of trade."
- [news.chemnet.com](https://news.chemnet.com/news-5065.html), 2026-05-07: "Mitsui Chemicals, Idemitsu Kosan, and Sumitomo Chemical, three Japanese chemical giants, jointly issued an announcement stating that their plan to integrate polyolefin businesses has officially received antitrust approval from the Japan Fair Trade Commission."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.