# Mitsui Chemicals to acquire JSR in $11.6B deal

Mitsui Chemicals Inc. has agreed to acquire semiconductor materials maker JSR Corp. from JIC Capital for ¥1.84 trillion ($11.6 billion). The deal is expected to close in the second half of fiscal year ending March 2028.

- Type: Acquisition
- Announced: 2026-11-09
- Where: Japan
- Value: $11.6B
- Status: announced
- Products: semiconductor materials, photoresists, Mitsui Pellicle, Icros tape, thick-film resists, specialty ABS resins
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md), [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md)

## Companies

- [Development Bank of Japan](https://endata.com/companies/17501.md) (investor)
- [Mitsui Chemicals](https://endata.com/companies/19809.md) (acquirer)
- [JSR Corporation](https://endata.com/companies/23191.md) (target)
- [JIC Capital](https://endata.com/companies/65024.md) (partner)
- [JCIC](https://endata.com/companies/95409.md) (partner)
- [DBJ](https://endata.com/companies/95410.md) (partner)

## Sources

- [p.chemweek.com](https://p.chemweek.com/document/show/phoenix/6320104/Mitsui-Chemicals-to-buy-JSR-in-$116B-deal), 2026-11-08: "Mitsui Chemicals Inc. has agreed to acquire semiconductor materials maker JSR Corp. from JIC Capital for ¥1.84 trillion ($11.6 billion), it said on Nov. 9."
- [japanir.jp](https://japanir.jp/en/company/company-4183/ir/4183-20261109-01_wp_general_ir/), 2026-11-09: "After acquisition, JSR will be positioned as the core of the company's ICT domain"
- [technode.global](https://technode.global/2026/11/09/mitsui-chemicals-jsr-acquisition/), 2026-11-09: "Mitsui Chemicals has agreed to acquire semiconductor-materials supplier JSR alongside the Development Bank of Japan in a transaction valued at 1.84 trillion yen, or about $11.6 billion, creating a larger Japanese supplier of materials used in advanced chip manufacturing."
- [webpronews.com](https://www.webpronews.com/mitsui-chemicals-buys-jsr-photoresist-maker-11-6-billion/), 2026-11-09: "Mitsui Chemicals said Monday it has agreed to buy JSR, the Tokyo-based maker of photoresists, from funds run by JIC Capital for 1.84 trillion yen, or about $11.6 billion, with the Development Bank of Japan putting 200 billion yen into the deal."

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