Exhibit 15.2

Cardno, Inc.

534 Industrial Park Road

Bluefield, VA 24605

USA

Phone: +1 276 322 5467

Fax: +1 276 322 5460

www.cardno.com

CONSENT OF CARDNO, INC.

We hereby consent to (a) being named in the Annual Report on Form 20-F of ArcelorMittal for the year ended December 31, 2015 (the "2015 20-F") as having prepared certain coal reserve estimates and (b) the incorporation by reference of the 2015 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 ).

CARDNO, INC.

/s/ J. Scott Nelson, C.P.G.

[J. Scott Nelson, C.P.G.]

[Principal, Practice Leader - Geology]

[Blacksburg, Virginia]

[January 29, 2016]

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

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

[Principal, Business Unit Manager - Mining Advisory Services]

[Bluefield, Virginia]

[January 29, 2016]

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