Document

I, Hernandez Guerrero Hector Rodrigo, an employee of Peña Colorada, in connection with ArcelorMittal's Annual Report on Form 20-F for the year ended December 31, 2025 (the "2025 20-F"):

1.certify that I have supervised and validated the preparation of the mineral resources estimates for Peña Colorada;

2.consent to the use of and references to my name, including my status as an expert or "qualified person" (as defined in Subpart 1300 of Regulation S-K promulgated by the U.S. Securities and Exchange Commission), in connection with the 2025 20-F, the Registration Statements listed in paragraph (c) below and mineral resources estimate for Peña Colorada; and

3.consent to the incorporation by reference of the 2025 20-F into the Registration Statements Nos. 333-147382, 333-153576, 333-162697, and 333-170117 on Form S-8 and the Registration Statement No. 333-278551 on Form F-3 (and any amendments or supplements thereto).

I am responsible for authoring, and this consent pertains to, the mineral resources estimate for Peña Colorada. I certify that I have read the 2025 20-F and that it fairly and accurately represents the mineral resources estimate of each property for which I am responsible.

Australasian Institute of Mining and Metallurgy member MAusIMM CP (Geo) Reg. No. 3059580;

Av. del Trabajo No. 1000 Tapeixtles, 28876 Manzanillo, Colima and +52314 331 0600 EXT 4708

I, Werner Jordaan Spies, an employee of Peña Colorada, in connection with ArcelorMittal's Annual Report on Form 20-F for the year ended December 31, 2025 (the "2025 20-F"):

(a) certify that I have supervised and validated the preparation of the mineral reserves estimate for Peña Colorada;

(b) consent to the use of and references to my name, including my status as an expert or "qualified person" (as defined in Subpart 1300 of Regulation S-K promulgated by the U.S. Securities and Exchange Commission), in connection with the 2025 20-F, the Registration Statements listed in paragraph (c) below and mineral reserves estimate for Peña Colorada; and

(c) consent to the incorporation by reference of the 2025 20-F into the Registration Statements Nos. 333-147382, 333-153576, 333-162697 and 333-170117 on Form S-8 and the Registration Statement No. 333-278551 on Form F-3 (and any amendments or supplements thereto).

I am responsible for authoring, and this consent pertains to, the mineral reserves estimate for Peña Colorada. I certify that I have read the 2025 20-F and that it fairly and accurately represents the mineral reserves estimate for each property for which I am responsible.

South African Institute of Mining and Metallurgy member SAIMM CP(Mining) Reg. 701130

Av. del Trabajo No. 1000 Tapeixtles, 28876 Manzanillo, Colima and +52 314 125437