CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-237964) of ÁñÁ«ÊÓƵ of our report dated June 17, 2022 relating to the financial statements and supplemental schedule of the ÁñÁ«ÊÓƵ 401(k) Plan for USW-Represented Employees which appears in this Form 11-K.
/s/PricewaterhouseCoopers LLP
Pittsburgh, Pennsylvania June 17, 2022
PricewaterhouseCoopers LLP, 301 Grant Street, Suite 4500, Pittsburgh, PA 15219
