As filed with the Securities and Exchange Commission on May 21, 2021

Registration No. 333-            

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

U.S. Silica Holdings, Inc.

(Exact name of registrant as specified in its charter)

U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan

(Full title of the plan)

Bryan A. Shinn

Chief Executive Officer

U.S. Silica Holdings, Inc.

24275 Katy Freeway, Suite 600

Katy, Texas 77494

(Name and address of agent for service)

(281) 258-2170

(Telephone number, including area code, of agent for service)

Copy to:

G. Scott Lesmes

Morrison & Foerster LLP

2100 L Street NW, Suite 900

Washington, D.C. 20037

(202) 887-1563

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

CALCULATION OF REGISTRATION FEE

This Registration Statement is being filed by U.S. Silica Holdings, Inc. (the “Company”), in accordance with General Instruction E to Form S-8, to register 1,500,000 additional shares of common stock for issuance under the Third Amended and Restated U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan, as amended (the “Plan”), as approved by the Company’s shareholders on May 13, 2021. The contents of the Company’s Registration Statement on Form S-8 (No. 333-179480) filed with the Securities and Exchange Commission (the “Commission”) on February 10, 2012, the Registration Statement on Form S-8 (No. 333-204062) filed with the Commission on May 11, 2015, and the Registration Statement on Form S-8 (No. 333-238198) filed with the Commission on May 12, 2020, each relating to the Plan, are incorporated by reference into this Registration Statement.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

The following documents, which are on file with the Commission, are incorporated herein by reference:

All reports and other documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (other than Current Reports on Form 8-K furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K, including any exhibits included with such information, unless otherwise indicated therein) after the date of this Registration Statement, but prior to the filing of a post-effective amendment that indicates that all securities offered hereby have been sold or that deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing such documents. Our Commission File Number is 001-35416. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be

modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

Not applicable.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Katy, State of Texas, on May 21, 2021.

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each officer and director of U.S. Silica Holdings, Inc. whose signature appears below hereby severally constitutes and appoints Bryan A. Shinn, Stacy Russell and Matthew Rinegar, and each of them individually (with full power to each of them to act alone), with full power of substitution and resubstitution, his true and lawful attorney-in fact and agent, with full powers to each of them to sign for us, in our names and in the capacities indicated below, the Registration Statement on Form S-8 and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, and any and all amendments to said Registration Statement (including post-effective amendments), granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as each of them might or could do in person, and hereby ratifying and confirming all that said attorneys, and each of them, or their substitute or substitutes, may lawfully do or cause to be done by virtue of this power of attorney. This power of attorney may be executed in counterparts and all capacities to sign any and all amendments.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on May 21, 2021.

Exhibit 5.1

		2100 L STREET NW, SUITE 900 WASHINGTON, D.C. 20037   TELEPHONE: 202.887.1500 FACSIMILE: 202.887.0763   WWW.MOFO.COM		MORRISON & FOERSTER LLP   BEIJING, BERLIN, BOSTON, BRUSSELS, DENVER, HONG KONG, LONDON, LOS ANGELES, NEW YORK, NORTHERN VIRGINIA, PALO ALTO, SAN DIEGO, SAN FRANCISCO, SHANGHAI, SINGAPORE, TOKYO, WASHINGTON, D.C.

May 21, 2021

Board of Directors

U.S. Silica Holdings, Inc.

24275 Katy Freeway, Suite 600

Katy, TX 77494

Re: Registration Statement on Form S-8

Ladies and Gentlemen:

We are acting as counsel to U.S. Silica Holdings, Inc., a Delaware corporation (the “Company”), in connection with its registration statement on Form S-8 (the “Registration Statement”), filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), relating to the proposed offering of up to 1,500,000 shares (the “Shares”) of the Company’s common stock, par value $0.01 per share, all of which Shares may be issued pursuant to awards under the Company’s Third Amended and Restated U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan (the “Plan”).

As counsel for the Company, we have examined originals or copies, certified or otherwise identified to our satisfaction, of such documents, corporate records, certificates of public officials and other instruments as we have deemed necessary for the purposes of rendering this opinion, and we are familiar with the proceedings taken and proposed to be taken by the Company in connection with the authorization, issuance and sale of the Shares. In our examination, we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals and the conformity with the originals of all documents submitted to us as copies. For the purpose of the opinion rendered below, we have assumed that in connection with the issuance of the Shares, the Company will receive consideration in an amount not less than the aggregate par value of the Shares covered by each such issuance.

Based upon and subject to the foregoing, it is our opinion that following (i) effectiveness of the Registration Statement, (ii) issuance of the Shares pursuant to the terms of the Plan, and (iii) receipt by the Company of the consideration for the Shares specified in the applicable resolutions of the Board of Directors or a duly authorized committee thereof and the Plan, the Shares will be validly issued, fully paid and nonassessable. The opinion expressed herein is limited to the General Corporation Law of the State of Delaware, the Delaware Constitution and reported judicial decisions interpreting those laws, each as currently in effect.

We consent to the use of this opinion as an exhibit to the Registration Statement, and we consent to the reference of our name wherever appearing in the Registration Statement and any amendments thereto. In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act.

2

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our reports dated February 26, 2021 with respect to the consolidated financial statements and internal control over financial reporting of U.S. Silica Holdings, Inc. included in the Annual Report on Form 10-K for the year ended December 31, 2020, which are incorporated by reference in this Registration Statement. We consent to the incorporation by reference of the aforementioned reports in this Registration Statement.

/s/ GRANT THORNTON LLP

Houston, Texas

May 21, 2021