Kaiser Aluminum Corporation and certain of its subsidiaries have entered into Amendment No. 5 to their existing Credit Agreement with Wells Fargo Bank, National Association, and other financial institutions. The amendment extends the maturity date of the credit facility and revises the terms of the unused line fee, allowing for a rate of either 0.20% or 0.25% per annum depending on average revolver usage. The company may also request an increase in revolving commitments by up to $200 million, with the potential for an additional first-in last-out tranche, subject to lender approval. The amendment permits the incurrence of certain types of secured debt and increases asset sale capacity, while maintaining a fixed charge coverage ratio covenant and first priority lien on specific assets. The agreement continues to include various restrictions and default provisions.