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SeAH News 2025-12-15

SeAH Aerospace & Defense Signs Long-Term Supply Agreement with Boeing for Aircraft-Grade Aluminum Alloys

Starting in 2026, to supply high-strength aluminum alloy materials for aircraft fuselage and wings to Boeing in the United StatesSecuring stable supply volumes of high-strength aluminum alloys and establishing a trust-based partnership with Boeing, a global aircraft manufacturerDemonstrating global-level material traceability and quality management capabilities, with expectations to expand supply scope through diversification of aerospace material portfolio

SeAH Aerospace & Defense, a subsidiary of SeAH Besteel Holdings, announced that it has signed a Long-Term Agreement (LTA) with Boeing to supply high-strength aluminum alloy materials for aerospace applications.

Under the agreement, SeAH Aerospace & Defense will supply aluminum alloy materials used in aircraft fuselage and wing structures to Boeing starting in 2026. The agreement reflects Boeing's confidence in the company's quality performance, on-time delivery capabilities, and supply reliability.

The agreement also secures stable production volumes for the company's new aluminum manufacturing facility in Changnyeong, Korea. The facility, with an annual capacity of 2,300 tons, is scheduled to commence full-scale operations in 2027.

SeAH Aerospace & Defense and Boeing long-term supply agreement

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