Pittsburgh-based Alcoa plans to divest a minority stake in the Ma'aden Rolling Company, which produces rolled aluminum products in Saudi Arabia.
Alcoa will return its 25.1pc stake in the rolling mill to chief investor Ma'aden, and expects to close on that by the end of the month.
The company will retain its 25.1pc stake in Ma'aden's smelting, alumina and bauxite businesses.
To cover its remaining obligations, Alcoa will pay Ma'aden a total of $100mn in two installments, releasing itself from $295mn in future debt and cash requirements.
The companies will maintain commercial relationships in sales, logistics and other services.
Alcoa joined the partnership in 2009.