Mitsui Chemicals to acquire JSR Corp in a multi‑trillion‑yen deal

Mitsui Chemicals announced it will buy semiconductor materials maker JSR Corp for about ¥1.84 trillion, funded mainly by ¥1.64 trillion of bridge loans and a ¥200 billion equity contribution from the Development Bank of Japan. The transaction is slated to close in the second half of fiscal 2027, subject to regulatory approval. Mitsui said its net‑debt‑to‑EBITDA ratio will temporarily exceed 4.0× after the deal and it plans to issue up to ¥150 billion of new shares to refinance part of the bridge financing.

The company warned that the higher debt ratio could affect its credit rating. The planned share issuance creates dilution risk for existing shareholders. The acquisition is intended to make Mitsui Japan’s largest semiconductor‑materials supplier, expanding its growth platform.

  • 1Mitsui Chemicals signed an agreement to acquire JSR for ¥1.84 trillion (≈$11.65 billion).
  • 2The acquisition will be financed with ¥1.64 trillion of bridge loans.
  • 3The Development Bank of Japan will contribute ¥200 billion in equity.
  • 4Mitsui expects its net‑debt‑to‑EBITDA ratio to temporarily exceed 4.0× after closing.
  • 5The company filed a shelf registration for up to ¥150 billion of new common shares to refinance part of the bridge loan.
  • 6Closing is expected in the second half of fiscal 2027, subject to regulatory approvals.
  • Deal value reported as $11.6 billion, $11.65 billion, $8.81 billion, $9 billion, and $12 billion.

Sources