CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of

Constellium SE of our report dated February 25, 2026 relating to the financial statements and the

effectiveness of internal control over financial reporting, which appears in Constellium SE's Annual

Report on Form 10-K for the year ended December 31, 2025.  We also consent to the reference to us under

the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers Audit

Neuilly-sur-Seine, France

June 24, 2026