The board of CSR has accepted a $4.3 billion buyout bid from French company Saint-Gobain.

The deal, priced at $9 per share, includes a 25% stake in the Tomago aluminium smelter.

Saint-Gobain aims to tap into Australia's high-growth construction market through the transaction.

The transaction, subject to shareholder and regulatory approvals, is expected to close in the second half of 2024.