LEG Leggett and Platt Inc

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

Scott S. Douglas

Senior Vice President,

General Counsel & Secretary

(417) 358-8131

(Name and telephone number, including area code, of the person to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

Section 1 – Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

This Form SD of Leggett & Platt, Incorporated is filed pursuant to Rule 13p-1 promulgated under the Securities Exchange Act, as amended, for the reporting period from January 1, 2018 to December 31, 2018.

A copy of the Company’s Conflict Minerals Report is provided as Exhibit 1.01 to this Form SD and incorporated by reference herein, and is publicly available at http://www.leggett.com/SupplierDocuments/Corporate . The website and information accessible through it are not incorporated into this document.

Item 1.02 Exhibit

As specified in Section 2, Item 2.01 of this Form SD, the Company is hereby filing its Conflict Minerals Report as Exhibit 1.01 to this report.

Section 2 – Exhibits

Item 2.01 Exhibits

The following exhibit is filed as part of this report.

EXHIBIT INDEX

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

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