Exhibit 15.2

582 Industrial Park Road, Bluefield, VA 24605-9364 ■Phone 276.322.5467 ■Fax 276.322.5460

www.mma1.com ■ info@mma1.com

CONSENT OF MARSHALL MILLER & ASSOCIATES, INC.

We hereby consent to (a) being named in the Annual Report on Form 20-F of ArcelorMittal for the year ended December 31, 2016 (the "2016 20-F") as having prepared certain coal reserve estimates and (b) the incorporation by reference of the 2016 20-F into the Registration Statements Nos. 333-147382, 333-153576, 333-162697 and 333-170117 on Form S-8 and Registration Statement No. 333 -202409 on Form F-3 (as amended by Post-Effective Amendment No. 1 ).

MARSHALL MILLER & ASSOCIATES, INC.

/s/ J. Scott Nelson

J. Scott Nelson, C.P.G.

Senior Principal

Blacksburg, Virginia

February 10, 2017

/s/ Justin S. Douthat

Justin S. Douthat, P.E., M.B.A.

Supervisory Engineer

Bluefield, Virginia

February 10, 2017

ENERGY & MINERAL RESOURCES ■ HYDROGEOLOGY & GEOLOGY ■ GEOPHYSICAL LOGGING SERVICES

CARBON MANAGEMENT ■ EXPERT WITNESS TESTIMONY ■MINING ENGINEERING ■ PETROLEUM ENGINEERING