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Mitsui Chemicals and DBJ to buy JSR for $11.6 billion, filing shows

By Thomson Reuters Nov 8, 2026 | 8:55 PM

By Anton Bridge

TOKYO, Nov 9 (Reuters) – Mitsui Chemicals and the Development Bank of Japan (DBJ) will ​acquire chipmaking materials maker JSR from ‌state-backed fund Japan Investment Corp (JIC) for 1.84 trillion yen ($11.61 billion), a filing showed on Monday.

The deal is among ‌the ​largest in the ⁠sector and stands to ⁠reshape Japan’s chip supply chain as the government moves to boost its competitiveness. It is more ​than double Showa Denki’s $4.55-billion acquisition of Hitachi Chemical in ⁠2020.

Mitsui Chemicals will ⁠sell shares worth up to ​150 billion yen to help finance ​the transaction, the filing showed, ‌taking out a a bridge loan of 1.64 trillion yen, to be partially paid back through ⁠the equity raise, the filing showed.

DBJ will invest 200 billion yen.

Shares of Mitsui ⁠Chemicals were ‌trading down around 13% ⁠on Monday at about ​1,500 ‌yen each, following last ​week’s fall ⁠of more than 10% after Reuters first reported that it was the final buyer for JSR.

($1=158.4500 yen)

(Reporting by Anton Bridge; Editing by ​Clarence Fernandez)