Pledge Amendment dated as of August 8, 2024, to the Pledge Agreement dated as of September 13, 2017, executed by Kronos Louisiana, Inc. and Kronos LPC, LLC regarding additional pledged securities

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Exhibit 10.4

Certain information identified by “[***]” has been excluded from this exhibit because it is both not material and is the type that the company treats as private or confidential.

PLEDGE AMENDMENT

This Pledge Amendment, dated as of August 8, 2024, is delivered pursuant to Section 9(a) of the Pledge Agreement (as amended, amended and restated, supplemented or otherwise modified from time to time, the “Pledge Agreement;” capitalized terms used but not otherwise defined herein shall have the meanings assigned to such terms in the Pledge Agreement), dated as of September 13, 2017, by and among each of the parties listed on the signature pages thereto and those additional entities that thereafter become parties thereto (collectively, jointly and severally, “Grantors” and each, individually, a “Grantor”) and DEUTSCHE BANK TRUST COMPANY AMERICAS, in its capacity as collateral agent for the Secured Parties (in such capacity, together with its successors and assigns in such capacity, “Agent”).  The undersigned hereby agrees that this Pledge Amendment may be attached to the Pledge Agreement and that the Pledged Securities listed on this Pledge Amendment shall be deemed to be and shall become part of the Notes Collateral and shall secure all Secured Obligations.

PLEDGED SECURITIES

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