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[***] Certain information in this document has been excluded pursuant to Regulation S-K, Item (601)(b)(10). Such excluded information is not material and would likely cause competitive harm to the registrant if publicly disclosed.

TENTH AMENDMENT TO
SECOND AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT

THIS TENTH AMENDMENT TO SECOND AMENDED AND RESTATED LOAN AND
SECURITY AGREEMENT (this “Amendment”) is entered into this 29th day of January, 2022 by and between SILICON VALLEY BANK, a California corporation (“Bank”) and OWLET BABY CARE, INC., a Delaware corporation (“Borrower”).

RECITALS

A.Bank and Borrower have entered into that certain Second Amended and Restated Loan and Security Agreement dated as of April 22, 2020, as amended by that certain First Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of April 23, 2020, but effective as of April 22, 2020, as further amended by that certain Second Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of September 22, 2020, as further amended by that certain Default Waiver, Consent, and Third Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of March 10, 2021, as further amended by that certain Fourth Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of May 14, 2021, as further amended by that certain Fifth Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of May 25, 2021, as further amended by that certain Sixth Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of August 12, 2021, as further amended by that certain Seventh Amendment to Second Amended and Restated Loan and Security Agreement (the “Seventh Amendment”) by and between Bank and Borrower dated as of September 20, 2021, as further amended by that certain Eighth Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of November 15, 2021, and as further amended by that certain Ninth Amendment to Second Amended and Restated Loan and Security Agreement by and between Bank and Borrower dated as of December 13, 2021 (as the same may from time to time be further amended, modified, supplemented or restated, the “Loan Agreement”).

B.Bank has extended credit to Borrower for the purposes permitted in the Loan Agreement.

C.Borrower has requested that Bank amend the Loan Agreement to make certain revisions to the Loan Agreement as more fully set forth herein.

D.Bank has agreed to so amend certain provisions of the Loan Agreement, but only to the extent, in accordance with the terms, subject to the conditions and in reliance upon the representations and warranties set forth below.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable consideration, the receipt and adequacy of which is hereby acknowledged, and intending to be legally bound, the parties hereto agree as follows:

1.Definitions. Capitalized terms used but not defined in this Amendment, including its preamble and recitals, shall have the meanings given to them in the Loan Agreement.
			
	

			
	

2.Amendment to Loan Agreement.

2.1Postponement of 2021 Annual Inventory Appraisal and Collateral Audit and Inspections. Notwithstanding anything to the contrary in Section 6.6 of the Loan Agreement, Bank hereby agrees that Bank shall postpone the requirements of an annual inventory appraisal (performed by a valuation firm satisfactory to Bank), and an annual inspection and audit of Borrower’s Books and Collateral, in each case, for the calendar year 2021, through May 31, 2022.

2.2Section 2.2 (Revolving Line). Section 2.2(a) of the Loan Agreement is hereby amended by deleting it in its entirety and replacing it with the following:

(a)Availability. Subject to the terms and conditions of this Agreement and to deduction of Reserves, Bank shall make Advances not exceeding the Availability Amount. Amounts borrowed under the Revolving Line may be repaid and, prior to the Revolving Line Maturity Date, reborrowed, subject to the applicable terms and conditions precedent herein.

2.3Section 2.6 (Payment of Interest on the Credit Extensions). Section 2.6(a) of the Loan Agreement is hereby amended by deleting it in its entirety and replacing it with the following:

(a)Interest Rate.

(i)Advances. Subject to Section 2.6(b), the principal amount outstanding under the Revolving Line shall accrue interest at a floating per annum rate equal to (1) when a Streamline Period is in effect, the greater of (1) three-quarters of one percent (0.75%) above the Prime Rate or (2) five percent (5.0%), or (2) at all other times, the greater of (A) one and one- quarter of one percent (1.25%) above the Prime Rate or (B) five percent (5.0%) which interest shall be payable monthly in accordance with Section 2.6(d) below.

(ii)Growth Capital Advances. Subject to Section 2.6(b), the principal amount outstanding under each Growth Capital Advance shall accrue interest at a floating per annum rate equal to the greater of (A) two and one-half of one percent (2.50%) above the Prime Rate, or (B) five and three quarters of one percent (5.75%), which interest shall be payable monthly in accordance with Section 2.6(d) below.

2.4Section 6.2 (Financial Statements, Reports, Certificates). Sections 6.2(f) and 6.2(i) of the Loan Agreement are hereby amended by deleting them in their entirety and replacing them with the following:

(f)    [reserved];

(i)    [reserved];

2.5Section 6.3 (Accounts Receivable). Section 6.3(c) of the Loan Agreement is hereby amended by deleting the first (1st) sentence in such section and replacing it with the following:

Borrower shall direct Account Debtors to deliver or transmit all proceeds of Accounts into a lockbox account, or via electronic capture into a “blocked account” as specified by Bank (either such account, the “Cash Collateral Account”); provided, however, that Borrower shall be permitted to allow proceeds of any Canadian Accounts (but excluding any

			
	

			
	

Eligible Canadian Accounts) to be transmitted into any of the Canadian Bank Accounts in accordance with this Agreement.

2.6       Section 6.8 (Accounts). Sections 6.8(a) and 6.8(b) of the Loan Agreement are hereby amended by deleting them in their entirety and replacing them with the following:

(a)Borrower and any Subsidiary of Borrower shall maintain all of its operating accounts and excess cash with Bank or Bank’s Affiliates. Borrower shall also maintain its Cash Collateral Account with Bank. Notwithstanding the foregoing, or anything to the contrary herein, Borrower may maintain (1) the merchant account with CyberSource as more fully described in the Perfection Certificate (the “CyberSource Account”), provided that (x) the aggregate balance of the CyberSource Account shall not exceed
at any time and (y) Borrower sweeps the funds in the CyberSource Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (2) the merchant accounts with Amazon Pay and Stripe each as more fully described in the Perfection Certificate (collectively, the “Amazon Pay and Stripe Accounts”), provided that (x) the aggregate balance of the Amazon Pay and Stripe Accounts shall not exceed
at any time and (y) Borrower sweeps the funds in the Amazon Pay and Stripe Accounts to Borrower’s operating account maintained with Bank every three (3) calendar days, (3) the merchant account with Amazon Marketplace as more fully described in the Perfection Certificate (the “Amazon Marketplace Account”), provided that (x) the aggregate balance of the Amazon Marketplace Account shall not exceed
at any time and (y) Borrower sweeps the funds in the Amazon Marketplace Account to Borrower’s operating account maintained with Bank every two (2) weeks, (4) the merchant account with Affirm as more fully described in the Perfection Certificate (the “Affirm Account”), provided that (x) the aggregate balance of the Affirm Account shall not exceed
at any time and (y) Borrower sweeps the funds in the Affirm Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (5) the merchant account with Square as more fully described in the Perfection Certificate (the “Square Account”), provided that (x) the aggregate balance of the Square Account shall not exceed    at any time and (y) Borrower sweeps the funds in the Square Account to Borrower’s operating account maintained with Bank every three
(3) calendar days, (6) the merchant account with Klarna as more fully described in the Perfection Certificate (the “Klarna Account”), provided that (x) the aggregate balance of the Klarna Account shall not exceed    at any time and
(y) Borrower sweeps the funds in the Klarna Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (7) the merchant account with Shopify Pay as more fully described in the Perfection Certificate (the “Shopify Pay Account”), provided that
(x) the aggregate balance of the Shopify Pay Account shall not exceed
at any time and (y) Borrower sweeps the funds in the Shopify Pay Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (8) the merchant account with Zift as more fully described in the Perfection Certificate (the “Zift Account”), provided that (x) the aggregate balance of the Zift Account shall not exceed
at any time and (y) Borrower sweeps the funds in the Zift Account to Borrower’s operating account 
			
	

			
	

maintained with Bank every three (3) calendar days, (9) the merchant account with Paypal as more fully described in the Perfection Certificate (the “Paypal Account”), provided that (x) the aggregate balance of the Paypal Account shall not exceed    ) at any time and (y) Borrower sweeps the funds in the Paypal Account to Borrower’s operating account maintained with Bank every seven
(7) calendar days, and (10) accounts in Borrower’s name in Canada at or with any bank or financial institution located in Canada other than Bank or Bank’s Affiliates (collectively, the

			
	

			
	

“Canadian Bank Accounts”), provided, that the aggregate balance in all Canadian Bank Accounts does not exceed Three Million Canadian Dollars (CAD$3,000,000) at any time. Any Guarantor shall maintain all depository, operating and securities/investment accounts with Bank and Bank’s Affiliates in those jurisdictions where Bank or Bank’s Affiliates provide banking services.

(b) In addition to and without limiting the restrictions in 0, Borrower shall provide Bank five (5) days prior written notice before establishing any Collateral Account at or with any bank or financial institution other than Bank or Bank’s Affiliates. For each Collateral Account that Borrower at any time maintains, Borrower shall cause the applicable bank or financial institution (other than Bank) at or with which any Collateral Account is maintained to execute and deliver a Control Agreement or other appropriate instrument with respect to such Collateral Account to perfect Bank’s Lien in such Collateral Account in accordance with the terms hereunder which Control Agreement may not be terminated without the prior written consent of Bank. The provisions of the previous sentence shall not apply to (1) deposit accounts exclusively used for payroll, payroll taxes, and other employee wage and benefit payments to or for the benefit of Borrower’s employees and identified to Bank by Borrower as such, (2) the CyberSource Account, provided that (x) the aggregate balance of the CyberSource Account does not exceed Five Hundred Thousand Dollars ($500,000) at any time and (y) Borrower sweeps the funds in the CyberSource Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (3) the Amazon Pay and Stripe Accounts, provided that (x) the aggregate balance of the Amazon Pay and Stripe Accounts do not exceed Seventy-Five Thousand Dollars ($75,000) at any time and (y) Borrower sweeps the funds in the Amazon Pay and Stripe Accounts to Borrower’s operating account maintained with Bank every three (3) calendar days, (4) the Amazon Marketplace Account, provided that (x) the aggregate balance of the Amazon Marketplace Account does not exceed Five Hundred Thousand Dollars ($500,000) at any time and (y) Borrower sweeps the funds in the Amazon Marketplace Account to Borrower’s operating account maintained with Bank every two (2) weeks, (5) the Affirm Account, provided that (x) the aggregate balance of the Affirm Account does not exceed One Hundred Thousand Dollars ($100,000) at any time and (y) Borrower sweeps the funds in the Affirm Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (6) the Square Account, provided that (x) the aggregate balance of the Square Account shall not exceed One Hundred Thousand Dollars ($100,000) at any time and (y) Borrower sweeps the funds in the Square Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (7) the Klarna Account, provided that (x) the aggregate balance of the Klarna Account shall not exceed One Hundred Thousand Dollars ($100,000) at any time and (y) Borrower sweeps the funds in the Klarna Account to Borrower’s operating account maintained with Bank every three
(3) calendar days, (8) the Shopify Pay Account, provided that (x) the aggregate balance of the Shopify Pay Account shall not exceed Five Hundred Thousand Dollars ($500,000) at any time and (y) Borrower sweeps the funds in the Shopify Pay Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (9) the Zift Account, provided that (x) the aggregate balance of the Zift Account shall not exceed One Hundred Thousand Dollars ($100,000) at any time and (y) Borrower sweeps the funds in the Zift Account to Borrower’s operating account maintained with Bank every three (3) calendar days, (10) the Paypal Account, provided that (x) the aggregate balance of the Paypal Account shall not exceed One Hundred Thousand Dollars ($100,000) at any time and (y) Borrower sweeps the funds in the Paypal Account to Borrower’s operating account maintained with Bank every seven (7) calendar days, and (11) the Canadian Bank Accounts; provided, that the aggregate balance in all Canadian Bank Accounts does not exceed Three Million Canadian Dollars (CAD$3,000,000) at any time.

			
	

			
	

2.7    Section 6.9 (Financial Covenants).    Section 6.9 of the Loan Agreement is hereby amended by deleting it in its entirety and replacing it with the following:

6.9    Financial Covenants. Borrower shall maintain:

(a)Minimum Liquidity. Liquidity (tested by Bank as of the last day of each month) of at least Thirty Million Dollars ($30,000,000).

(b)Minimum Net Revenue.   Commencing with the quarter ending March 31, 2022, and as of the last day of each quarter thereafter, an aggregate Net Revenue for the quarter then ended, of at least the following amounts at the following times:

						
	Quarter Ending
	Minimum Net Revenue

	March 31, 2022
	

	June 30, 2022
	

	September 30, 2022
	

	December 31, 2022
	

Commencing with the quarter ending March 31, 2023 and continuing as of the last day of each quarter thereafter, the minimum Net Revenue financial covenant set forth in this Section 6.9(b) (the “2023 Net Revenue Covenant”) is subject to change based on Borrower’s annual financial projections approved by the Board for the 2023 fiscal year as determined by Bank in its sole discretion and delivered to Bank pursuant to Section 6.2(e). Borrower’s failure to reach an agreement with Bank on the 2023 Net Revenue Covenant and to execute and deliver to Bank an amendment to this Agreement which provides the terms for the 2023 Net Revenue Covenant by no later January 31, 2023 shall constitute an immediate Event of Default under this Agreement.

1.8Section 13.1 (Definitions).

(a)Section 13.1 of the Loan Agreement is hereby amended by deleting the following terms and their respective definitions in their entirety and replacing them with the following:

“Borrowing Base” is (a) seventy percent (70%) of Eligible Accounts, plus (b) the lesser of the Inventory Advance Rate or the Eligible Inventory Cap, each as determined by Bank from Borrower’s most recent Borrowing Base Statement (and as may subsequently be updated by Bank based upon information received by Bank including, without limitation, Accounts that are paid and/or billed following the date of the Borrowing Base Statement); provided, however, that Bank has the right to decrease each and any of the foregoing percentage, the Inventory Advance Rate and Eligible Inventory Cap (if applicable) in its good faith business judgment to mitigate the impact of events, conditions, contingencies, or risks which may adversely affect the Collateral or its value.

“Eligible Foreign Accounts” are Accounts for which the Account Debtor does not have its principal place of business in the United States or are billed and/or payable outside of

			
	

			
	

the United States and which (a)(i) otherwise satisfy the definition of Eligible Accounts and (ii) either are (A) due and owing from Cheeky Rascals Limited, or Danish by Design Pty Ltd., or (B) Canadian Accounts, provided that the Account Debtors of such Canadian Accounts deliver or transmit all proceeds of such Canadian Accounts into the Cash Collateral Account with Bank (the “Eligible Canadian Accounts”), or (b) are approved by Bank in writing on a case-by-case basis.

“Inventory Advance Rate” is the lesser of (x) thirty percent (30%) of Borrower’s Eligible Inventory (valued at the lower of cost or wholesale fair market value) and (y)
(i)the OLV Percentage multiplied by (ii) Borrower’s Eligible Inventory (valued at the lower of cost or wholesale fair market value).

“Streamline Period” is, provided no Event of Default has occurred and is continuing, the period (a) commencing on the first (1st) day of the month following the day that Borrower provides to Bank a written report that Borrower’s Liquidity, for each consecutive day in the immediately preceding month, as determined by Bank in its discretion, is equal to or greater than Fifty Million Dollars ($50,000,000) (the “Streamline Threshold”); and
(b)terminating on the earlier to occur of (i) the occurrence of an Event of Default, and (ii) the first (1st) day thereafter in which Borrower fails to maintain the Streamline Threshold, as determined by Bank in its discretion. Upon the termination of a Streamline Period, Borrower must maintain the Streamline Threshold each consecutive day for one (1) fiscal quarter as determined by Bank in its discretion, prior to entering into a subsequent Streamline Period. Borrower shall give Bank prior written notice of Borrower’s election to enter into any such Streamline Period, and each such Streamline Period shall commence on the first (1st) day of the month following the date Bank determines, in its reasonable discretion, that the Streamline Threshold has been achieved.

(b)Section 13.1 of the Loan Agreement is hereby amended by deleting clause (e) in the definition of “Eligible Accounts” in Section 13.1 of the Loan Agreement and replacing it with the following:

(e)   Accounts owing from an Account Debtor (i) which does not have its principal place of business in the United States or (ii) whose billing address (as set forth in the applicable invoice for such Account) is not in the United States, unless in the case of both (i) and
(ii)such Accounts are Eligible Foreign Accounts;

(c)Section 13.1 of the Loan Agreement is hereby amended by adding the following terms and their respective definitions to Section 13.1 of the Loan Agreement in alphabetical order:

“2023 Net Revenue Covenant” is defined in Section 6.9(b).

“Canadian Accounts” are Accounts for which the Account Debtor has its principal place of business in Canada.

“Canadian Bank Accounts” is defined in Section 6.9(a). “Canadian Dollars” means the lawful money of Canada.
“Gross Revenue” is Borrower’s gross revenue as determined in accordance with
GAAP.

			
	

			
	

“Net Revenue” is Gross Revenue minus sales discounts, retail volume discounts, retail ad allowances, and returns and allowances, and Borrower’s net revenue as determined in accordance with GAAP.

(d)The defined terms “2021 EBITDA Covenant”, “EBITDA”, “Loss on Extinguishment of Debt”, “Interest Expense”, “Net Income”, “Net Proceeds”, “Qualifying Liquidity Event” and “Qualifying Liquidity Event Date”, and their respective definitions as set forth in Section
13.1 of the Loan Agreement are hereby deleted in their entirety and all occurrences of and references to such terms in the Loan Agreement are hereby deleted in their entirety and from and after the date of this Amendment shall be of no further force and effect under the Loan Agreement.

2.9 Compliance Certificate. The Compliance Certificate attached to the Loan Agreement as Exhibit B is hereby replaced in its entirety with the Compliance Certificate attached hereto as Exhibit B. From and after the date hereof, all references in the Loan Agreement to the Compliance Certificate shall be deemed to refer to the Compliance Certificate in the form attached hereto as Exhibit B.

3.Limitation of Amendment.

3.1The amendment set forth in Section 2, above, is effective for the purposes set forth herein and shall be limited precisely as written and shall not be deemed to (a) be a consent to any amendment, waiver or modification of any other term or condition of any Loan Document, or (b) otherwise prejudice any right or remedy which Bank may now have or may have in the future under or in connection with any Loan Document.

3.2This Amendment shall be construed in connection with and as part of the Loan Documents and all terms, conditions, representations, warranties, covenants and agreements set forth in the Loan Documents, except as herein amended, are hereby ratified and confirmed and shall remain in full force and effect.

3.3In addition to those Events of Default specifically enumerated in the Loan Documents, the failure to comply with the terms of any covenant or agreement contained herein shall constitute an Event of Default and shall entitle the Bank to exercise all rights and remedies provided to the Bank under the terms of any of the other Loan Documents as a result of the occurrence of the same.

4.Representations and Warranties.    To induce Bank to enter into this Amendment, Borrower hereby represents and warrants to Bank as follows:

4.1Immediately after giving effect to this Amendment (a) the representations and warranties contained in the Loan Documents are true, accurate and complete in all material respects as of the date hereof (except to the extent such representations and warranties relate to an earlier date, in which case they are true and correct as of such date), and (b) no Event of Default has occurred and is continuing;

4.2Borrower has the power and authority to execute and deliver this Amendment and to perform its obligations under the Loan Agreement, as amended by this Amendment;

4.3The organizational documents of Borrower delivered to Bank on the Effective Date and in connection with the Seventh Amendment, as applicable, remain true, accurate and complete and have not been amended, supplemented or restated and are and continue to be in full force and effect;

			
	

			
	

4.4The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, have been duly authorized;

4.5The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, do not and will not contravene (a) any material law or regulation binding on or affecting Borrower, (b) any material contractual restriction with a Person binding on Borrower, (c) any order, judgment or decree of any court or other governmental or public body or authority, or subdivision thereof, binding on Borrower, or (d) the organizational documents of Borrower;

4.6The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, do not require any order, consent, approval, license, authorization or validation of, or filing, recording or registration with, or exemption by any governmental or public body or authority, or subdivision thereof, binding on Borrower, except as already has been obtained or made; and

4.7This Amendment has been duly executed and delivered by Borrower and is the binding obligation of Borrower, enforceable against Borrower in accordance with its terms, except as such enforceability may be limited by bankruptcy, insolvency, reorganization, liquidation, moratorium or other similar laws of general application and equitable principles relating to or affecting creditors’ rights.

5.Integration. This Amendment and the Loan Documents represent the entire agreement about this subject matter and supersede prior negotiations or agreements. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Amendment and the Loan Documents merge into this Amendment and the Loan Documents.

6.Counterparts. This Amendment may be executed in any number of counterparts and all of such counterparts taken together shall be deemed to constitute one and the same instrument.

7.Effectiveness. This Amendment shall be deemed effective upon the due execution and delivery to Bank of this Amendment by each party hereto.

8.Bank Expenses. Borrower shall pay all of Bank’s legal fees and expenses in connection with the negotiation and preparation of this Amendment.

9.Governing Law. This Amendment and the rights and obligations of the parties hereto shall be governed by and construed in accordance with the laws of the State of California.

[Signature page follows.]
			
	

			
	DocuSign Envelope ID: 6F35673D-382C-4246-B2A2-82D62231F181

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and delivered as of the date first written above.

BORROWER:

OWLET BABY CARE, INC.

By:            Name: Kate Scolnick
Title: Chief Financial Officer

By:         Name: Nadir Ajaz
Title: Director – Treasury Operations

BANK:

SILICON VALLEY BANK

By:         Name: Jordan Rigberg
Title: Vice President

[Signature Page to Tenth Amendment to Second Amended and Restated Loan and Security Agreement]EX-10.1

 Exhibit 10.1 

FOURTH AMENDED AND RESTATED 
 U.S.
SILICA HOLDINGS, INC. 
  
  

2011 INCENTIVE COMPENSATION PLAN 
  

 
 (As amended
and restated effective May 12, 2022) 
 ARTICLE I 

PURPOSE 
 The purpose of
this Fourth Amended and Restated U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan is to enhance the profitability and value of the Company for the benefit of its stockholders by enabling the Company to offer Eligible Individuals cash and
stock-based incentives in order to attract, retain and reward such individuals and strengthen the mutuality of interests between such individuals and the Company’s stockholders. The Plan is effective as of the date set forth in Article XV. 

ARTICLE II 
 DEFINITIONS

 For purposes of this Plan, the following terms shall have the following meanings: 

2.1 “Acquisition Event” has the meaning set forth in Section 4.2(d). 

2.2 “Affiliate” means each of the following: (a) any Subsidiary; (b) any Parent; (c) any corporation,
trade or business (including, without limitation, a partnership or limited liability company) which is directly or indirectly controlled 50% or more (whether by ownership of stock, assets or an equivalent ownership interest or voting interest) by
the Company or one of its Affiliates; (d) any trade or business (including, without limitation, a partnership or limited liability company) which directly or indirectly controls 50% or more (whether by ownership of stock, assets or an
equivalent ownership interest or voting interest) of the Company; and (e) any other entity in which the Company or any of its Affiliates has a material equity interest and which is designated as an “Affiliate” by resolution of the
Committee; provided that, unless otherwise determined by the Committee, the Common Stock subject to any Award constitutes “service recipient stock” for purposes of Section 409A of the Code or otherwise does not subject the Award to
Section 409A of the Code. 
 2.3 “Award” means any award under the Plan of any Stock Option, Stock Appreciation
Right, Restricted Stock, Performance Award or Other Stock-Based Award or Other Cash-Based Award. All Awards shall be granted by, confirmed by, and subject to the terms of, a written agreement executed by the Company and the Participant. 

2.4 “Award Agreement” means the written or electronic agreement setting forth the terms and conditions applicable to
an Award. 
 2.5 “Board” means the Board of Directors of the Company. 

2.6 “Cause” means, unless otherwise determined by the Committee in the applicable Award Agreement, with respect to a
Participant’s Termination of Employment or Termination of Consultancy, the following: (a) in the case where there is no employment agreement, consulting agreement, change in control agreement or similar agreement in effect between the
Company or an Affiliate and the Participant at the time of the grant of the Award (or where there is such an agreement but it does not define “cause” 

  
 A-1 

 
(or words of like import)), termination due to a Participant’s, dishonesty, fraud, moral turpitude, willful misconduct or refusal to perform his or her duties or responsibilities for any
reason other than illness or incapacity, as determined by the Committee in its sole discretion; or (b) in the case where there is an employment agreement, consulting agreement, change in control agreement or similar agreement in effect between
the Company or an Affiliate and the Participant at the time of the grant of the Award that defines “cause” (or words of like import), “cause” as defined under such agreement; provided, however, that with regard to any agreement
under which the definition of “cause” only applies on occurrence of a change in control, such definition of “cause” shall not apply until a change in control actually takes place and then only with regard to a termination
thereafter. With respect to a Participant’s Termination of Directorship, “cause” means an act or failure to act that constitutes cause for removal of a director under applicable Delaware law. 

2.7 “Change in Control” has the meaning set forth in Section 11.2. 

2.8 “Change in Control Price” has the meaning set forth in Section 11.1(b). 

2.9 “Code” means the Internal Revenue Code of 1986, as amended. Any reference to any section of the Code shall also be
a reference to any successor provision and any Treasury Regulation promulgated thereunder. 
 2.10 “Committee” means
any committee of the Board duly authorized by the Board to administer the Plan. If no committee is duly authorized by the Board to administer the Plan, the term “Committee” shall be deemed to refer to the Board for all purposes under the
Plan. 
 2.11 “Common Stock” means the common stock, $0.01 par value per share, of the Company. 

2.12 “Company” means U.S. Silica Holdings, Inc., a Delaware corporation, and its successors by operation of law. 

2.13 “Consultant” means any natural person who is an advisor or consultant to the Company or its Affiliates. 

2.14 “Detrimental Activity” means, unless otherwise determined by the Committee, in the applicable Award Agreement:
(a) the disclosure to anyone outside the Company or its Affiliates, or the use in any manner other than in the furtherance of the Company’s or its Affiliate’s business, without written authorization from the Company, of any
confidential information, trade secrets or proprietary information, relating to the business of the Company or its Affiliates that is acquired by a Participant prior to the Participant’s Termination; (b) activity while employed or
performing services that results, or if known could result, in the Participant’s Termination that is classified by the Company as a termination for Cause; (c) any attempt, directly or indirectly, to solicit, induce or hire (or the
identification for solicitation, inducement or hiring of) any employee of the Company or its Affiliates to be employed by, or to perform services for, the Participant or any person or entity with which the Participant is associated (including, but
not limited to, due to the Participant’s employment by, consultancy for, equity interest in, or creditor relationship with such person or entity) or any person or entity from which the Participant receives direct or indirect compensation or
fees as a result of such solicitation, inducement or hire (or the identification for solicitation, inducement or hire) without, in all cases, written authorization from the Company; (d) any attempt, directly or indirectly, to solicit in a
competitive manner any customer or prospective customer of the Company or its Affiliates at the time of a Participant’s Termination, without, in all cases, written authorization from the Company; (e) the Participant’s Disparagement,
or inducement of others to do so, of the Company or its Affiliates or their past and present officers, directors, employees or products; (f) without written authorization from the Company, the rendering of services for any organization, or
engaging, directly or indirectly, in any business, which is competitive with the Company or its Affiliates, or the rendering of services to such organization or business if such organization or business is otherwise prejudicial to or in conflict
with the interests of the Company or its Affiliates provided, however, that competitive activities shall only be those competitive with any business unit or Affiliate of the Company with regard to which the Participant performed services at any time
within the two years prior to the Participant’s Termination; or (g) breach of any agreement between the Participant and the Company or 

  
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an Affiliate (including, without limitation, any employment agreement or noncompetition or nonsolicitation agreement). For purposes of sub-sections (a),
(c), (d) and (f) above, the General Counsel or the Chief Executive Officer of the Company shall have authority to provide the Participant, except for himself or herself, with written authorization to engage in the activities contemplated
thereby and no other person shall have authority to provide the Participant with such authorization. 
 2.15
“Disability” means, unless otherwise determined by the Committee in the applicable Award Agreement, with respect to a Participant’s Termination, a permanent and total disability as defined in Section 22(e)(3) of the
Code. A Disability shall only be deemed to occur at the time of the determination by the Committee of the Disability. Notwithstanding the foregoing, for Awards that are subject to Section 409A of the Code, Disability shall mean that a
Participant is disabled under Section 409A(a)(2)(C)(i) or (ii) of the Code. 
 2.16 “Disparagement” means
making comments or statements to the press, the Company’s or its Affiliates’ employees, consultants or any individual or entity with whom the Company or its Affiliates has a business relationship which could reasonably be expected to
adversely affect in any manner: (a) the conduct of the business of the Company or its Affiliates (including, without limitation, any products or business plans or prospects); or (b) the business reputation of the Company or its Affiliates,
or any of their products, or their past or present officers, directors or employees. 
 2.17 “Effective Date” means
the effective date of the Plan as defined in Article XV. 
 2.18 “Eligible Employee” means each employee of the
Company or an Affiliate. 
 2.19 “Eligible Individual” means an Eligible Employee,
Non-Employee Director or Consultant who is designated by the Committee in its discretion as eligible to receive Awards subject to the conditions set forth herein. 

2.20 “Exchange Act” means the Securities Exchange Act of 1934, as amended. Reference to a specific section of the
Exchange Act or regulation thereunder shall include such section or regulation, any valid regulation or interpretation promulgated under such section, and any comparable provision of any future legislation or regulation amending, supplementing or
superseding such section or regulation. 
 2.21 “Fair Market Value” means, for purposes of the Plan, unless
otherwise required by any applicable provision of the Code or any regulations issued thereunder, as of any date and except as provided below, the last sales price reported for the Common Stock on the applicable date: (a) as reported on the
principal national securities exchange in the United States on which it is then traded or (b) if the Common Stock is not traded, listed or otherwise reported or quoted, the Committee shall determine in good faith the Fair Market Value in
whatever manner it considers appropriate taking into account the requirements of Section 409A of the Code. For purposes of the grant of any Award, the applicable date shall be the trading day immediately prior to the date on which the Award is
granted. For purposes of the exercise of any Award, the applicable date shall be the date a notice of exercise is received by the Committee or, if not a day on which the applicable market is open, the next day that it is open. 

2.22 “Family Member” means “family member” as defined in Section A.1.(5) of the general instructions of Form
S-8. 
 2.23 “Full Value Award” means any Award other than a Stock Option or
Stock Appreciation Right, which is settled through the issuance of shares of Common Stock. 
 2.24 “Incentive Stock
Option” means any Stock Option awarded to an Eligible Employee of the Company, its Subsidiaries and its Parents (if any) under this Plan intended to be and designated as an “Incentive Stock Option” within the meaning of
Section 422 of the Code. 
 2.25 “Lead Underwriter” has the meaning set forth in Section 14.20. 

2.26 “Lock-Up Period” has the meaning set forth in Section 14.20. 

2.27 “Merger Event” has the meaning set forth in Section 4.2(b). 

  
 A-3 

 2.28 “Non-Employee Director”
means a director or a member of the Board of the Company or any Affiliate who is not an active employee of the Company or any Affiliate. 

2.29 “Non-Qualified Stock Option” means any Stock Option awarded under the
Plan that is not an Incentive Stock Option. 
 2.30 “Non-Tandem Stock Appreciation
Right” shall mean the right to receive an amount in cash and/or stock equal to the difference between (x) the Fair Market Value of a share of Common Stock on the date such right is exercised, and (y) the aggregate exercise
price of such right, otherwise than on surrender of a Stock Option. 
 2.31 “Other Cash-Based Award” means an Award
granted pursuant to Section 10.3 of the Plan and payable in cash at such time or times and subject to such terms and conditions as determined by the Committee in its sole discretion. 

2.32 “Other Extraordinary Event” has the meaning set forth in Section 4.2(b). 

2.33 “Other Stock-Based Award” means an Award under Article X of the Plan that is valued in whole or in part by
reference to, or is payable in or otherwise based on, Common Stock, including, without limitation, an Award valued by reference to an Affiliate. 

2.34 “Parent” means any parent corporation of the Company within the meaning of Section 424(e) of the Code. 

2.35 “Participant” means an Eligible Individual to whom an Award has been granted pursuant to the Plan. 

2.36 “Performance Award” means an Award granted to a Participant pursuant to Article IX hereof contingent upon
achieving certain Performance Goals. 
 2.37 “Performance Goals” means goals established by the Committee as
contingencies for Awards to vest and/or become exercisable or distributable based on one or more of the performance goals set forth in Exhibit A hereto. 

2.38 “Performance Period” means the designated period during which the Performance Goals must be satisfied with
respect to the Award to which the Performance Goals relate. 
 2.39 “Plan” means this Fourth Amended and Restated
U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan, as amended from time to time. 
 2.40 “Reference Stock
Option” has the meaning set forth in Section 7.1. 
 2.41 “Restricted Stock” means an Award of
shares of Common Stock under the Plan that is subject to restrictions under Article VIII. 
 2.42 “Restriction
Period” has the meaning set forth in Section 8.3(a) with respect to Restricted Stock. 
 2.43 “Rule 16b-3” means Rule 16b-3 under Section 16(b) of the Exchange Act as then in effect or any successor provision. 

2.44 “Section 162(m) of the Code” means the exception for performance-based
compensation under Section 162(m) of the Code and any applicable treasury regulations thereunder. 
 2.45
“Section 4.2 Event” has the meaning set forth in Section 4.2(b). 
 2.46
“Section 409A of the Code” means the nonqualified deferred compensation rules under Section 409A of the Code and any applicable treasury regulations and other official guidance
thereunder. 
 2.47 “Securities Act” means the Securities Act of 1933, as amended and all rules and regulations
promulgated thereunder. Reference to a specific section of the Securities Act or regulation thereunder shall include such section or regulation, any valid regulation or interpretation promulgated under such section, and any comparable provision of
any future legislation or regulation amending, supplementing or superseding such section or regulation. 

  
 A-4 

 2.48 “Share Authorization” has the meaning set forth in
Section 4.1(a). 
 2.49 “Stock Appreciation Right” shall mean the right pursuant to an Award granted under
Article VII. 
 2.50 “Stock Option” or “Option” means any option to purchase shares of
Common Stock granted to Eligible Individuals granted pursuant to Article VI. 
 2.51 “Subsidiary” means any
subsidiary corporation of the Company within the meaning of Section 424(f) of the Code. 
 2.52 “Tandem Stock Appreciation
Right” shall mean the right to surrender to the Company all (or a portion) of a Stock Option in exchange for an amount in cash and/or stock equal to the difference between (i) the Fair Market Value on the date such Stock Option (or
such portion thereof) is surrendered, of the Common Stock covered by such Stock Option (or such portion thereof), and (ii) the aggregate exercise price of such Stock Option (or such portion thereof). 

2.53 “Ten Percent Stockholder” means a person owning stock possessing more than ten percent (10%) of the total
combined voting power of all classes of stock of the Company, its Subsidiaries or its Parent. 
 2.54 “Termination”
means a Termination of Consultancy, Termination of Directorship or Termination of Employment, as applicable. 
 2.55 “Termination
of Consultancy” means: (a) that the Consultant is no longer acting as a consultant to the Company or an Affiliate; or (b) when an entity which is retaining a Participant as a Consultant ceases to be an Affiliate unless the
Participant otherwise is, or thereupon becomes, a Consultant to the Company or another Affiliate at the time the entity ceases to be an Affiliate. In the event that a Consultant becomes an Eligible Employee or a
Non-Employee Director upon the termination of his or her consultancy, unless otherwise determined by the Committee, in its sole discretion, no Termination of Consultancy shall be deemed to occur until such
time as such Consultant is no longer a Consultant, an Eligible Employee or a Non-Employee Director. Notwithstanding the foregoing, the Committee may otherwise define Termination of Consultancy in the Award
Agreement or, if no rights of a Participant are reduced, may otherwise define Termination of Consultancy thereafter, provided that any such change to the definition of the term “Termination of Consultancy” does not subject the applicable
Award to Section 409A of the Code. 
 2.56 “Termination of Directorship” means that the Non-Employee Director has ceased to be a director of the Company; except that if a Non-Employee Director becomes an Eligible Employee or a Consultant upon the termination of
his or her directorship, his or her ceasing to be a director of the Company shall not be treated as a Termination of Directorship unless and until the Participant has a Termination of Employment or Termination of Consultancy, as the case may be.

 2.57 “Termination of Employment” means: (a) a termination of employment (for reasons other than a military
or personal leave of absence granted by the Company) of a Participant from the Company and its Affiliates; or (b) when an entity which is employing a Participant ceases to be an Affiliate, unless the Participant otherwise is, or thereupon
becomes, employed by the Company or another Affiliate at the time the entity ceases to be an Affiliate. In the event that an Eligible Employee becomes a Consultant or a Non-Employee Director upon the
termination of his or her employment, unless otherwise determined by the Committee, in its sole discretion, no Termination of Employment shall be deemed to occur until such time as such Eligible Employee is no longer an Eligible Employee, a
Consultant or a Non-Employee Director. Notwithstanding the foregoing, the Committee may otherwise define Termination of Employment in the Award Agreement or, if no rights of a Participant are reduced, may
otherwise define Termination of Employment thereafter, provided that any such change to the definition of the term “Termination of Employment” does not subject the applicable Award to Section 409A of the Code. 

  
 A-5 

 2.58 “Transfer” means: (a) when used as a noun, any direct or
indirect transfer, sale, assignment, pledge, hypothecation, encumbrance or other disposition (including the issuance of equity in any entity), whether for value or no value and whether voluntary or involuntary (including by operation of law), and
(b) when used as a verb, to directly or indirectly transfer, sell, assign, pledge, encumber, charge, hypothecate or otherwise dispose of (including the issuance of equity in any entity) whether for value or for no value and whether voluntarily
or involuntarily (including by operation of law). “Transferred” and “Transferable” shall have a correlative meaning. 

ARTICLE III 

ADMINISTRATION 
 3.1
The Committee. The Plan shall be administered and interpreted by the Committee. To the extent required by applicable law, rule or regulation, it is intended that each member of the Committee shall qualify as (a) a “non-employee director” under Rule 16b-3, (b) an “outside director” under Code Section 162(m) and (c) an “independent director” under
the rules of any national securities exchange or national securities association, as applicable. If it is later determined that one or more members of the Committee do not so qualify, actions taken by the Committee prior to such determination shall
be valid despite such failure to qualify. In the event that any member of the Committee does not qualify as a “non-employee director” for purposes of Section 16 of the Exchange Act, then all
compensation that is intended to be exempt from Section 16 will also be approved by the Board or a subcommittee made up of members of the Board who qualify as non-employee directors. In the event that any
member of the Committee does not qualify as an “outside director” for purposes of Section 162(m) of the Code, then all performance-based compensation that is intended to be exempt from Section 162(m) of the Code will also be
approved by a subcommittee made up of members of the Board who qualify as outside directors. 
 3.2 Grants of Awards. The
Committee shall have full authority to grant, pursuant to the terms of this Plan, to Eligible Individuals: (i) Stock Options, (ii) Stock Appreciation Rights, (iii) Restricted Stock, (iv) Performance Awards; (v) Other
Stock-Based Awards; and (vi) Other Cash-Based Awards. In particular, the Committee shall have the authority: 
 (a) to
select the Eligible Individuals to whom Awards may from time to time be granted hereunder; 
 (b) to determine whether and to
what extent Awards, or any combination thereof, are to be granted hereunder to one or more Eligible Individuals; 
 (c) to
determine the number of shares of Common Stock to be covered by each Award granted hereunder; 
 (d) to determine the terms
and conditions, not inconsistent with the terms of the Plan, of any Award granted hereunder (including, but not limited to, the exercise or purchase price (if any), any restriction or limitation, any vesting schedule or acceleration thereof, or any
forfeiture restrictions or waiver thereof, regarding any Award and the shares of Common Stock relating thereto, based on such factors, if any, as the Committee shall determine, in its sole discretion); 

(e) to determine whether, to what extent and under what circumstances grants of Options and other Awards under the Plan are to
operate on a tandem basis and/or in conjunction with or apart from other awards made by the Company outside of this Plan; 

(f) to determine whether and under what circumstances a Stock Option may be settled in cash, Common Stock and/or Restricted
Stock under Section 6.4(d); 
 (g) to determine whether a Stock Option is an Incentive Stock Option or Non-Qualified Stock Option; 
 (h) to determine whether to require a Participant, as a
condition of the granting of any Award, to not sell or otherwise dispose of shares acquired pursuant to the exercise of an Award for a period of time as determined by the Committee, in its sole discretion, following the date of the acquisition of
such Award; 

  
 A-6 

 (i) to modify, extend or renew an Award, subject to Article XII and
Section 6.4(l), provided, however, that such action does not subject the Award to Section 409A of the Code without the consent of the Participant; and 

(j) solely to the extent permitted by applicable law, to determine whether, to what extent and under what circumstances to
provide loans (which may be on a recourse basis and shall bear interest at the rate the Committee shall provide) to Participants in order to exercise Options under the Plan. 

3.3 Guidelines. Subject to Article XII hereof, the Committee shall have the authority to adopt, alter and repeal such
administrative rules, guidelines and practices governing the Plan and perform all acts, including the delegation of its responsibilities (to the extent permitted by applicable law and applicable stock exchange rules), as it shall, from time to time,
deem advisable; to construe and interpret the terms and provisions of the Plan and any Award issued under the Plan (and any agreements relating thereto); and to otherwise supervise the administration of the Plan. The Committee may correct any
defect, supply any omission or reconcile any inconsistency in the Plan or in any agreement relating thereto in the manner and to the extent it shall deem necessary to effectuate the purpose and intent of the Plan. The Committee may adopt special
guidelines and provisions for persons who are residing in or employed in, or subject to, the taxes of, any domestic or foreign jurisdictions to comply with applicable tax and securities laws of such domestic or foreign jurisdictions. 

Notwithstanding the foregoing, no action of the Committee under this Section 3.3 shall impair the rights of any Participant without the
Participant’s consent. To the extent applicable, this Plan is intended to comply with the applicable requirements of Rule 16b-3, and with respect to Awards intended to be “performance-based,”
the applicable provisions of Section 162(m) of the Code, and the Plan shall be limited, construed and interpreted in a manner so as to comply therewith. 

3.4 Decisions Final. Any decision, interpretation or other action made or taken in good faith by or at the direction of the
Company, the Board or the Committee (or any of its members) arising out of or in connection with the Plan shall be within the absolute discretion of all and each of them, as the case may be, and shall be final, binding and conclusive on the Company
and all employees and Participants and their respective heirs, executors, administrators, successors and assigns. 
 3.5
Procedures. If the Committee is appointed, the Board shall designate one of the members of the Committee as chairman and the Committee shall hold meetings, subject to the By-Laws of the Company,
at such times and places as it shall deem advisable, including, without limitation, by telephone conference or by written consent to the extent permitted by applicable law. A majority of the Committee members shall constitute a quorum. All
determinations of the Committee shall be made by a majority of its members. Any decision or determination reduced to writing and signed by all of the Committee members in accordance with the By-Laws of the
Company, shall be fully effective as if it had been made by a vote at a meeting duly called and held. The Committee shall keep minutes of its meetings and shall make such rules and regulations for the conduct of its business as it shall deem
advisable. 
 3.6 Designation of Consultants/Liability. 

(a) The Committee may designate employees of the Company and professional advisors to assist the Committee in the
administration of the Plan and (to the extent permitted by applicable law and applicable exchange rules) may grant authority to officers to grant Awards and/or execute agreements or other documents on behalf of the Committee. 

(b) The Committee may employ such legal counsel, consultants and agents as it may deem desirable for the administration of the
Plan and may rely upon any opinion received from any such counsel or consultant and any computation received from any such consultant or agent. Expenses incurred by the Committee or the Board in the engagement of any such counsel, consultant or
agent shall be paid by the Company. The Committee, its members and any person designated pursuant to 

  
 A-7 

 
sub-section (a) above shall not be liable for any action or determination made in good faith with respect to the Plan. To the maximum extent permitted
by applicable law, no officer of the Company or member or former member of the Committee or of the Board shall be liable for any action or determination made in good faith with respect to the Plan or any Award granted under it. 

ARTICLE IV 
 SHARE
LIMITATION 
 4.1 Shares. (a) Subject to any increase or decrease pursuant to Section 4.2, the aggregate number of
shares of Common Stock that may be issued or used for reference purposes or with respect to which Awards may be granted under the Plan shall not exceed 14,825,000 shares (the “Share Authorization”). Subject to any increase or
decrease pursuant to Section 4.2, the aggregate number of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options shall not exceed 6,300,000 shares. The shares may be either authorized and unissued Common
Stock or Common Stock held in or acquired for the treasury of the Company or both. The full number of Stock Appreciation Rights granted that are to be settled in Common Stock shall be counted against the number of shares of Common Stock available
for award under the Plan, regardless of the number of shares of Common Stock actually issued upon settlement of such Stock Appreciation Rights. If any Option, Stock Appreciation Right or Other Stock-Based Award granted under the Plan expires,
terminates or is canceled for any reason without having been exercised in full, the number of shares of Common Stock underlying any unexercised Award shall again be available for the purpose of Awards under the Plan. If any shares of Restricted
Stock, Performance Awards or Other Stock-Based Awards denominated in shares of Common Stock awarded under the Plan to a Participant are forfeited for any reason, the number of forfeited shares of Restricted Stock, Performance Awards or Other
Stock-Based Awards denominated in shares of Common Stock shall again be available for purposes of Awards under the Plan. If a Tandem Stock Appreciation Right or a Limited Stock Appreciation Right is granted in tandem with an Option, such grant shall
only apply once against the maximum number of shares of Common Stock which may be issued under the Plan. Any Award under the Plan settled in cash shall not be counted against the foregoing maximum share limitations. Any shares of Common Stock
tendered or withheld to satisfy tax withholding obligations on an Award issued under the Plan, shares of Common Stock tendered or withheld to pay the exercise price of an Award under the Plan, and shares of Common Stock repurchased on the open
market with the proceeds of an Option exercise will no longer be eligible to be again available for grant under this Plan. 

(b) Limit on Full Value Awards. To the extent that a share of Common Stock is issued pursuant to the grant or exercise
of a Full Value Award, it shall reduce the Share Authorization by 1.35 shares of Common Stock; and, to the extent that a share of Common Stock is issued pursuant to the grant or exercise of an Award other than a Full Value Award, it shall reduce the
Share Authorization by one (1) share of Common Stock. 
 (c) Individual Participant Limitations. To the extent
required by Section 162(m) of the Code for Awards under the Plan to qualify as “performance-based compensation,” the following individual Participant limitations shall apply: 

(i) The maximum number of shares of Common Stock subject to any Award of Stock Options, or Stock Appreciation Rights, or shares
of Restricted Stock, or Other Stock-Based Awards for which the grant of such Award or the lapse of the relevant Restriction Period is subject to the attainment of Performance Goals in accordance with Section 8.3(a)(ii) which may be granted
under the Plan during any fiscal year of the Company to any Participant shall be one million five hundred thousand (1,500,000) shares per type of Award (which shall be subject to any further increase or decrease pursuant to Section 4.2),
provided that the maximum number of shares of Common Stock for all types of Awards does not exceed one million five hundred thousand (1,500,000) shares (which shall be subject to any further increase or decrease pursuant to Section 4.2) during
any fiscal year of the Company. If a Tandem Stock Appreciation Right is granted or a Limited Stock Appreciation Right is granted in tandem with a Stock Option, it shall apply against the Participant’s individual share limitations for both Stock
Appreciation Rights and Stock Options. 

  
 A-8 

 (ii) There are no annual individual share limitations applicable to
Participants on Restricted Stock or Other Stock-Based Awards for which the grant, vesting or payment (as applicable) of any such Award is not subject to the attainment of Performance Goals. 

(iii) The maximum number of shares of Common Stock subject to any Performance Award which may be granted under the Plan during
any fiscal year of the Company to any Participant shall be one million five hundred thousand (1,500,000) shares (which shall be subject to any further increase or decrease pursuant to Section 4.2) with respect to any fiscal year of the Company.

 (iv) The maximum value of a cash payment made under a Performance Award which may be granted under the Plan with respect
to any fiscal year of the Company to any Participant shall be seven million five hundred thousand dollars ($7,500,000). 

(v) The individual Participant limitations set forth in this Section 4.1(c) (other than Section 4.1(c)(iii)) shall be
cumulative; that is, to the extent that shares of Common Stock for which Awards are permitted to be granted to a Participant during a fiscal year are not covered by an Award to such Participant in a fiscal year, the number of shares of Common Stock
available for Awards to such Participant shall automatically increase in the subsequent fiscal years during the term of the Plan until used. 

(d) Annual Non-Employee Director Award Limitation. The aggregate grant date fair
value (computed as of the date of grant in accordance with applicable financial accounting rules) of all Awards granted under the Plan to any individual Non-Employee Director in any fiscal year of the Company
(excluding Awards made pursuant to deferred compensation arrangements in lieu of all or a portion of cash retainers and any stock dividends payable in respect of outstanding Awards) shall not exceed $500,000. 

4.2 Changes. 

(a) The existence of the Plan and the Awards granted hereunder shall not affect in any way the right or power of the Board or
the stockholders of the Company to make or authorize (i) any adjustment, recapitalization, reorganization or other change in the Company’s capital structure or its business, (ii) any merger or consolidation of the Company or any
Affiliate, (iii) any issuance of bonds, debentures, preferred or prior preference stock ahead of or affecting the Common Stock, (iv) the dissolution or liquidation of the Company or any Affiliate, (v) any sale or transfer of all or
part of the assets or business of the Company or any Affiliate or (vi) any other corporate act or proceeding. 
 (b)
Subject to the provisions of Section 4.2(d), in the event of a dividend or other distribution (whether in the form of cash, Common Stock, other securities, or other property) other than regular cash dividends, recapitalization, stock split,
reverse stock split, reorganization, merger, consolidation, split-up, spin-off, combination, Change in Control or exchange of Common Stock or other securities of the
Company, or other corporate transaction or event affects the Common Stock such that an adjustment is necessary or appropriate in order to prevent dilution or enlargement of benefits or potential benefits intended to be made available under the Plan
(a “Section 4.2 Event”), the Committee shall equitably adjust (i) the number of shares of Common Stock or other securities of the Company (or number and kind of other securities or property) with respect to
which Awards may be granted under the Plan, (ii) the maximum share limitation applicable to each type of Award that may be granted to any individual participant in any calendar year, (iii) the number of shares of Common Stock or other
securities of the Company (or number and kind of other securities or property) subject to outstanding Awards, and (iv) the exercise price with respect to any Stock Option or any Stock Appreciation Right. Any such adjustment determined by the
Committee shall be final, binding and 

  
 A-9 

 
conclusive on the Company and all Participants and their respective heirs, executors, administrators, successors and permitted assigns. If the Company enters into or is involved in any merger,
reorganization, Change in Control or other business combination with any person or entity (a “Merger Event”), the Committee may, prior to such Merger Event and effective upon such Merger Event, take such action as it deems
appropriate, including, but not limited to, replacing Awards with substitute Awards in respect of the shares, other securities or other property of the surviving corporation or any affiliate of the surviving corporation on such terms and conditions,
as to the number of shares, pricing and otherwise, which shall substantially preserve the value, rights and benefits of any affected Awards granted hereunder as of the date of the consummation of the Merger Event. Upon receipt by any affected
Participant of any such substitute Award (or payment) as a result of any such Merger Event, such Participant’s affected Awards for which such substitute Awards (or payment) were received shall be thereupon cancelled without the need for
obtaining the consent of any such affected Participant. In addition, subject to Section 4.2(d), if there shall occur any change in the capital structure or the business of the Company that is not a Section 4.2 Event or Merger Event (an
“Other Extraordinary Event”), then the Committee, in its sole discretion, may adjust any Award and make such other adjustments to the Plan. Except as expressly provided in this Section 4.2 or in the applicable Award Agreement,
a Participant shall have no rights by reason of any Section 4.2 Event, Merger Event, or any Other Extraordinary Event. 

(c) Fractional shares of Common Stock resulting from any adjustment in Awards pursuant to Section 4.2(a) or 4.2(b) shall
be aggregated until, and eliminated at, the time of exercise by rounding-down for fractions less than one-half and rounding-up for fractions equal to or greater than one-half. No cash settlements shall be made with respect to fractional shares eliminated by rounding. Notice of any adjustment shall be given by the Committee to each Participant whose Award has been adjusted and
such adjustment (whether or not such notice is given) shall be effective and binding for all purposes of the Plan. 
 (d) In
the event of a Merger Event in which the Company is not the surviving entity or in the event of any transaction that results in the acquisition of substantially all of the Company’s outstanding Common Stock by a single person or entity or by a
group of persons and/or entities acting in concert, or in the event of the sale or transfer of all or substantially all of the Company’s assets (all of the foregoing being referred to as an “Acquisition Event”), then the
Committee may, in its sole discretion, terminate all outstanding and unexercised Stock Options, Stock Appreciation Rights, or any Other Stock-Based Awards that provide for a Participant elected exercise, effective as of the date of the Acquisition
Event, by delivering notice of termination to each Participant at least 10 days prior to the date of consummation of the Acquisition Event, in which case during the period from the date on which such notice of termination is delivered to the
consummation of the Acquisition Event, each such Participant shall have the right to exercise in full all of his or her Awards that are then outstanding and vested as of such exercised date, but any such exercise may be indicated as contingent on
the occurrence of the Acquisition Event, and, provided that, if the Acquisition Event does not take place within a specified period after giving such notice for any reason whatsoever, any such notice and contingent exercise pursuant thereto shall be
null and void. 
 If an Acquisition Event occurs but the Committee does not terminate the outstanding Awards pursuant to this
Section 4.2(d), then the provisions of Section 4.2(b) and Article XI shall apply. 
 4.3 Minimum Purchase Price.
Notwithstanding any provision of the Plan to the contrary, if authorized but previously unissued shares of Common Stock are issued under the Plan, such shares shall not be issued for a consideration that is less than as permitted under applicable
law. 

  
 A-10 

 ARTICLE V 

ELIGIBILITY 
 5.1
General Eligibility. All current and prospective Eligible Individuals are eligible to be granted Awards. Eligibility for the grant of Awards and actual participation in the Plan shall be determined by the Committee in its sole
discretion. 
 5.2 Incentive Stock Options. Notwithstanding the foregoing, only Eligible Employees of the Company, its
Subsidiaries and its Parent (if any) are eligible to be granted Incentive Stock Options under the Plan. Eligibility for the grant of an Incentive Stock Option and actual participation in the Plan shall be determined by the Committee in its sole
discretion. 
 5.3 General Requirement. The vesting and exercise of Awards granted to a prospective Eligible Individual are
conditioned upon such individual actually becoming an Eligible Employee, Consultant or Non-Employee Director, respectively. 

5.4 Minimum Vesting Requirements. The minimum vesting period for any Award shall be one (1) year from the date of grant.

 ARTICLE VI 
 STOCK
OPTIONS 
 6.1 Options. Stock Options may be granted alone or in addition to other Awards granted under the Plan. Each
Stock Option granted under the Plan shall be of one of two types: (a) an Incentive Stock Option or (b) a Non-Qualified Stock Option. 

6.2 Grants. The Committee shall have the authority to grant to any Eligible Employee one or more Incentive Stock Options, Non-Qualified Stock Options, or both types of Stock Options. The Committee shall have the authority to grant any Consultant or Non-Employee Director one or more Non-Qualified Stock Options. To the extent that any Stock Option does not qualify as an Incentive Stock Option (whether because of its provisions or the time or manner of its exercise or otherwise), such Stock
Option or the portion thereof which does not so qualify shall constitute a separate Non-Qualified Stock Option. 

6.3 Incentive Stock Options. Notwithstanding anything in the Plan to the contrary, no term of the Plan relating to Incentive
Stock Options shall be interpreted, amended or altered, nor shall any discretion or authority granted under the Plan be so exercised, so as to disqualify the Plan under Section 422 of the Code, or, without the consent of the Participants
affected, to disqualify any Incentive Stock Option under such Section 422. 
 6.4 Terms of Options. Options granted under
the Plan shall be subject to the following terms and conditions and shall be in such form and contain such additional terms and conditions, not inconsistent with the terms of the Plan, as the Committee shall deem desirable: 

(a) Exercise Price. The exercise price per share of Common Stock subject to a Stock Option shall be determined by the
Committee at the time of grant, provided that the per share exercise price of a Stock Option shall be at least equal to 100% (or, in the case of a Ten Percent Stockholder, 110%) of the Fair Market Value of the Common Stock at the time of grant
except as may otherwise be permitted under this Plan with respect to Awards provided in substitution for outstanding awards granted by a business entity acquired by the Company, in accordance with Section 409A of the Code. 

(b) Stock Option Term. The term of each Stock Option shall be fixed by the Committee, provided that no Stock Option
shall be exercisable more than 10 years after the date the Option is granted; and provided further that the term of an Incentive Stock Option granted to a Ten Percent Stockholder shall not exceed five years. 

  
 A-11 

 (c) Exercisability. Unless otherwise provided by the Committee in
accordance with the provisions of this Section 6.4, and subject to Section 5.4, Stock Options granted under the Plan shall be exercisable at such time or times and subject to such terms and conditions as shall be determined by the
Committee at the time of grant. If the Committee provides, in its discretion, that any Stock Option is exercisable subject to certain limitations (including, without limitation, that such Stock Option is exercisable only in installments or within
certain time periods), the Committee may waive such limitations on the exercisability at any time at or after the time of grant in whole or in part (including, without limitation, waiver of the installment exercise provisions or acceleration of the
time at which such Stock Option may be exercised). Unless otherwise determined by the Committee at the time of grant, the Option agreement shall provide that (i) in the event that the Participant engages in Detrimental Activity prior to any
exercise of the Stock Option (whether vested or unvested), all Stock Options held by the Participant shall thereupon terminate and expire, (ii) as a condition of the exercise of a Stock Option, the Participant shall be required to certify (or
shall be deemed to have certified) at the time of exercise in a manner acceptable to the Company that the Participant is in compliance with the terms and conditions of the Plan and that the Participant has not engaged in, and does not intend to
engage in, any Detrimental Activity, and (iii) in the event that the Participant engages in Detrimental Activity during the one-year period commencing on the date that the Stock Option is exercised or
becomes vested, the Company shall be entitled to recover from the Participant at any time within one year after such exercise or vesting, and the Participant shall pay over to the Company, an amount equal to any gain realized as a result of the
exercise (whether at the time of exercise or thereafter). 
 (d) Method of Exercise. Subject to whatever installment
exercise and waiting period provisions apply under Section 6.4(c), to the extent vested, Stock Options may be exercised in whole or in part at any time during the Option term, by giving written notice of exercise to the Company specifying the
number of shares of Common Stock to be purchased. Such notice shall be accompanied by payment in full of the purchase price as follows: (i) in cash or by check, bank draft or money order payable to the order of the Company; (ii) solely to
the extent permitted by applicable law, if the Common Stock is traded on a national securities exchange, and the Committee authorizes, through a procedure whereby the Participant delivers irrevocable instructions to a broker reasonably acceptable to
the Committee to deliver promptly to the Company an amount equal to the purchase price; or (iii) on such other terms and conditions as may be acceptable to the Committee (including, without limitation, having the Company withhold shares of
Common Stock issuable upon exercise of the Stock Options or by payment in full or in part in the form of Common Stock owned by the Participant based on the Fair Market Value of the Common Stock on the payment date as determined by the Committee). No
shares of Common Stock shall be issued until payment therefore, as provided herein, has been made or provided for. 
 (e) Non-Transferability of Options. No Stock Option shall be Transferable by the Participant otherwise than by will or by the laws of descent and distribution, and all Stock Options shall be exercisable, during the
Participant’s lifetime, only by the Participant. Notwithstanding the foregoing, the Committee may determine, in its sole discretion, at the time of grant or thereafter that a Non-Qualified Stock Option
that is otherwise not Transferable pursuant to this Section is Transferable to a Family Member in whole or in part and in such circumstances, and under such conditions, as specified by the Committee. A
Non-Qualified Stock Option that is Transferred to a Family Member pursuant to the preceding sentence 

(i) may not be subsequently Transferred otherwise than by will or by the laws of descent and distribution and (ii) remains
subject to the terms of this Plan and the applicable Award Agreement. Any shares of Common Stock acquired upon the exercise of a Non-Qualified Stock Option by a permissible transferee of a Non-Qualified Stock Option or a permissible transferee pursuant to a Transfer after the exercise of the Non-Qualified Stock Option shall be subject to the terms of this Plan
and the applicable Award Agreement. 

  
 A-12 

 (f) Termination by Death or Disability. Unless otherwise determined
by the Committee at the time of grant, or if no rights of the Participant are reduced, thereafter, if a Participant’s Termination is by reason of death or Disability, all Stock Options that are held by such Participant that are vested and
exercisable at the time of the Participant’s Termination may be exercised by the Participant at any time within a period of one year from the date of such Termination (or in the case of death, by the legal representative of the
Participant’s estate), but in no event beyond the expiration of the stated term of such Stock Options; provided, however, that, in the case of a Termination due to Disability, if the Participant dies within such exercise period, all unexercised
Stock Options held by such Participant shall thereafter be exercisable, to the extent to which they were exercisable at the time of death, for a period of one year from the date of such death, but in no event beyond the expiration of the stated term
of such Stock Options. 
 (g) Involuntary Termination Without Cause. Unless otherwise determined by the Committee at
the time of grant, or if no rights of the Participant are reduced, thereafter, if a Participant’s Termination is by involuntary termination without Cause, all Stock Options that are held by such Participant that are vested and exercisable at
the time of the Participant’s Termination may be exercised by the Participant at any time within a period of 90 days from the date of such Termination, but in no event beyond the expiration of the stated term of such Stock Options. 

(h) Voluntary Termination. Unless otherwise determined by the Committee at the time of grant, or if no rights of the
Participant are reduced, thereafter, if a Participant’s Termination is voluntary (other than a voluntary termination described in Section 6.4(i)(y) hereof), all Stock Options that are held by such Participant that are vested and
exercisable at the time of the Participant’s Termination may be exercised by the Participant at any time within a period of 90 days from the date of such Termination, but in no event beyond the expiration of the stated term of such Stock
Options. 
 (i) Termination for Cause. Unless otherwise determined by the Committee at the time of grant, or if no
rights of the Participant are reduced, thereafter, if a Participant’s Termination (x) is for Cause or (y) is a voluntary Termination (as provided in Section 6.4(h)) after the occurrence of an event that would be grounds for a
Termination for Cause, all Stock Options, whether vested or not vested, that are held by such Participant shall thereupon terminate and expire as of the date of such Termination. 

(j) Unvested Stock Options. Unless otherwise determined by the Committee at the time of grant, or if no rights of the
Participant are reduced, thereafter, Stock Options that are not vested as of the date of a Participant’s Termination for any reason shall terminate and expire as of the date of such Termination. 

(k) Incentive Stock Option Limitations. To the extent that the aggregate Fair Market Value (determined as of the time of
grant) of the Common Stock with respect to which Incentive Stock Options are exercisable for the first time by an Eligible Employee during any calendar year under this Plan and/or any other stock option plan of the Company, any Subsidiary or any
Parent exceeds $100,000, such Options shall be treated as Non-Qualified Stock Options. In addition, if an Eligible Employee does not remain employed by the Company, any Subsidiary or any Parent at all times
from the time an Incentive Stock Option is granted until three months prior to the date of exercise thereof (or such other period as required by applicable law), such Stock Option shall be treated as a
Non-Qualified Stock Option. Should any provision of this Plan not be necessary in order for the Stock Options to qualify as Incentive Stock Options, or should any additional provisions be required, the
Committee may amend this Plan accordingly, without the necessity of obtaining the approval of the stockholders of the Company. 

(l) Form, Modification, Extension and Renewal of Stock Options. Subject to the terms and conditions and within the
limitations of the Plan, Stock Options shall be evidenced by such form of agreement or grant as is approved by the Committee, and the Committee may (i) modify, extend or renew outstanding Stock Options granted under the Plan (provided that the
rights of a Participant are not reduced without his or her consent and provided further that such action does not subject the Stock Options to Section 409A of the Code without the consent of the Participant), and (ii) accept the surrender
of outstanding Stock Options (up to the extent not theretofore exercised) and authorize the 

  
 A-13 

 
granting of new Stock Options in substitution therefor (to the extent not theretofore exercised). Notwithstanding the foregoing, an outstanding Option may not be modified to reduce the exercise
price thereof nor may a new Option at a lower price be substituted for a surrendered Option (other than adjustments or substitutions in accordance with Section 4.2) nor may any cash payment be made for a surrendered Option, unless such action
is approved by the stockholders of the Company. 
 (m) Deferred Delivery of Common Stock. The Committee may in its
discretion permit Participants to defer delivery of Common Stock acquired pursuant to a Participant’s exercise of an Option in accordance with the terms and conditions established by the Committee in the applicable Award Agreement, which shall
be intended to comply with the requirements of Section 409A of the Code. 
 (n) Dividend Equivalents. No dividend
equivalents may accrue with respect to Stock Options. 
 (o) Other Terms and Conditions. The Committee may include a
provision in an Award Agreement providing for the automatic exercise of a Non-Qualified Stock Option on a cashless basis on the last day of the term of such Option if the Participant has failed to exercise the
Non-Qualified Stock Option as of such date, with respect to which the Fair Market Value of the shares of Common Stock underlying the Non-Qualified Stock Option exceeds
the exercise price of such Non-Qualified Stock Option on the date of expiration of such Option, subject to Section 14.4. No dividend equivalents may accrue with respect to Stock Options. No dividend
equivalents may accrue with respect to Stock Options. Stock Options may contain such other provisions, which shall not be inconsistent with any of the terms of the Plan, as the Committee shall deem appropriate. 

ARTICLE VII 
 STOCK
APPRECIATION RIGHTS 
 7.1 Tandem Stock Appreciation Rights. Stock Appreciation Rights may be granted in conjunction with
all or part of any Stock Option (a “Reference Stock Option”) granted under the Plan (“Tandem Stock Appreciation Rights”). In the case of a Non-Qualified Stock Option, such
rights may be granted either at or after the time of the grant of such Reference Stock Option. In the case of an Incentive Stock Option, such rights may be granted only at the time of the grant of such Reference Stock Option. 

7.2 Terms and Conditions of Tandem Stock Appreciation Rights. Tandem Stock Appreciation Rights granted hereunder shall be
subject to such terms and conditions, not inconsistent with the provisions of the Plan, as shall be determined from time to time by the Committee, and the following: 

(a) Exercise Price. The exercise price per share of Common Stock subject to a Tandem Stock Appreciation Right shall be
determined by the Committee at the time of grant. To the extent that a Stock Appreciation Right is granted with an exercise price that is less than 100% of the Fair Market Value of the Common Stock at the time of grant, such Stock Appreciation Right
will be intended to comply with the requirements of Section 409A of the Code, and the Committee shall take such requirements into account when approving any such grant. 

(b) Term. A Tandem Stock Appreciation Right or applicable portion thereof granted with respect to a Reference Stock
Option shall terminate and no longer be exercisable upon the termination or exercise of the Reference Stock Option, except that, unless otherwise determined by the Committee, in its sole discretion, at the time of grant, a Tandem Stock Appreciation
Right granted with respect to less than the full number of shares covered by the Reference Stock Option shall not be reduced until and then only to the extent that the exercise or termination of the Reference Stock Option causes the number of shares
covered by the Tandem Stock Appreciation Right to exceed the number of shares remaining available and unexercised under the Reference Stock Option. 

  
 A-14 

 (c) Exercisability. Tandem Stock Appreciation Rights shall be
exercisable only at such time or times and to the extent that the Reference Stock Options to which they relate shall be exercisable in accordance with the provisions of Article VI, and shall be subject to the provisions of Section 6.4(c). 

(d) Method of Exercise. A Tandem Stock Appreciation Right may be exercised by the Participant by surrendering the
applicable portion of the Reference Stock Option. Upon such exercise and surrender, the Participant shall be entitled to receive an amount determined in the manner prescribed in this Section 7.2. Stock Options which have been so surrendered, in
whole or in part, shall no longer be exercisable to the extent that the related Tandem Stock Appreciation Rights have been exercised. 

(e) Payment. Upon the exercise of a Tandem Stock Appreciation Right, a Participant shall be entitled to receive up to,
but no more than, an amount in cash and/or Common Stock (as chosen by the Committee in its sole discretion) equal in value to the excess of the Fair Market Value of one share of Common Stock over the Option exercise price per share specified in the
Reference Stock Option agreement multiplied by the number of shares of Common Stock in respect of which the Tandem Stock Appreciation Right shall have been exercised, with the Committee having the right to determine the form of payment. 

(f) Deemed Exercise of Reference Stock Option. Upon the exercise of a Tandem Stock Appreciation Right, the Reference
Stock Option or part thereof to which such Stock Appreciation Right is related shall be deemed to have been exercised for the purpose of the limitation set forth in Article IV of the Plan on the number of shares of Common Stock to be issued under
the Plan. 
 (g) Non-Transferability. Tandem Stock Appreciation Rights shall
be Transferable only when and to the extent that the underlying Stock Option would be Transferable under Section 6.4(e) of the Plan. 

7.3 Non-Tandem Stock Appreciation Rights.
Non-Tandem Stock Appreciation Rights may also be granted without reference to any Stock Options granted under the Plan. 

7.4 Terms and Conditions of Non-Tandem Stock Appreciation Rights. Non-Tandem Stock Appreciation Rights granted hereunder shall be subject to such terms and conditions, not inconsistent with the provisions of the Plan, as shall be determined from time to time by the Committee, and
the following: 
 (a) Exercise Price. The exercise price per share of Common Stock subject to a Non-Tandem Stock Appreciation Right shall be determined by the Committee at the time of grant, provided that the per share exercise price of a Non-Tandem Stock Appreciation
Right shall not be less than 100% of the Fair Market Value of the Common Stock at the time of grant. 
 (b) Term. The
term of each Non-Tandem Stock Appreciation Right shall be fixed by the Committee, but shall not be greater than 10 years after the date the right is granted. 

(c) Exercisability. Unless otherwise provided by the Committee in accordance with the provisions of this
Section 7.4, and subject to Section 5.4, Non-Tandem Stock Appreciation Rights granted under the Plan shall be exercisable at such time or times and subject to such terms and conditions as shall be
determined by the Committee at the time of grant. If the Committee provides, in its discretion, that any such right is exercisable subject to certain limitations (including, without limitation, that it is exercisable only in installments or within
certain time periods), the Committee may waive such limitations on the exercisability at any time at or after grant in whole or in part (including, without limitation, waiver of the installment exercise provisions or acceleration of the time at
which such right may be exercised). 
 Unless otherwise determined by the Committee at grant, the Award Agreement shall provide that
(i) in the event that the Participant engages in Detrimental Activity prior to any exercise of the Non-Tandem Stock Appreciation Right, all Non-Tandem Stock
Appreciation Rights held by the Participant 

  
 A-15 

 
shall thereupon terminate and expire, (ii) as a condition of the exercise of a Non-Tandem Stock Appreciation Right, the Participant shall be required
to certify (or shall be deemed to have certified) at the time of exercise in a manner acceptable to the Company that the Participant is in compliance with the terms and conditions of the Plan and that the Participant has not engaged in, and does not
intend to engage in, any Detrimental Activity, and (iii) in the event that the Participant engages in Detrimental Activity during the one-year period commencing on the date the Non-Tandem Stock Appreciation Right is exercised or becomes vested, the Company shall be entitled to recover from the Participant at any time within one year after such exercise or vesting, and the Participant shall
pay over to the Company, an amount equal to any gain realized as a result of the exercise (whether at the time of exercise or thereafter). 

(d) Method of Exercise. Subject to whatever installment exercise and waiting period provisions apply under
Section 7.4(c), Non-Tandem Stock Appreciation Rights may be exercised in whole or in part at any time in accordance with the applicable Award Agreement, by giving written notice of exercise to the Company
specifying the number of Non-Tandem Stock Appreciation Rights to be exercised. 
 (e)
Payment. Upon the exercise of a Non-Tandem Stock Appreciation Right a Participant shall be entitled to receive, for each right exercised, up to, but no more than, an amount in cash and/or Common Stock
(as chosen by the Committee in its sole discretion) equal in value to the excess of the Fair Market Value of one share of Common Stock on the date that the right is exercised over the Fair Market Value of one share of Common Stock on the date that
the right was awarded to the Participant. 
 (f) Termination. Unless otherwise determined by the Committee at grant
or, if no rights of the Participant are reduced, thereafter, subject to the provisions of the applicable Award Agreement and the Plan, upon a Participant’s Termination for any reason, Non-Tandem Stock
Appreciation Rights will remain exercisable following a Participant’s Termination on the same basis as Stock Options would be exercisable following a Participant’s Termination in accordance with the provisions of Sections 6.4(f) through
6.4(j). 
 (g) Non-Transferability. No
Non-Tandem Stock Appreciation Rights shall be Transferable by the Participant otherwise than by will or by the laws of descent and distribution, and all such rights shall be exercisable, during the
Participant’s lifetime, only by the Participant. 
 (h) Dividend Equivalents. No dividend equivalents may accrue
with respect to Stock Appreciation Rights. 
 7.5 Limited Stock Appreciation Rights. The Committee may, in its sole
discretion, grant Tandem and Non-Tandem Stock Appreciation Rights either as a general Stock Appreciation Right or as a Limited Stock Appreciation Right. Limited Stock Appreciation Rights may be exercised only
upon the occurrence of a Change in Control or such other event as the Committee may, in its sole discretion, designate at the time of grant or thereafter. Upon the exercise of Limited Stock Appreciation Rights, except as otherwise provided in an
Award Agreement, the Participant shall receive in cash and/or Common Stock, as determined by the Committee, an amount equal to the amount (i) set forth in Section 7.2(e) with respect to Tandem Stock Appreciation Rights, or (ii) set
forth in Section 7.4(e) with respect to Non-Tandem Stock Appreciation Rights. 
 7.6 No
Repricings or Cash Buyouts of Stock Appreciation Rights. Notwithstanding the foregoing, an outstanding Stock Appreciation Right may not be modified to reduce the exercise price thereof nor may a new Stock Appreciation Right at a lower price
be substituted for a surrendered Stock Appreciation Right (other than adjustments or substitutions in accordance with Section 4.2) nor may any cash payment be made for a surrendered Stock Appreciation Right, unless such action is approved by
the stockholders of the Company. 

  
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 ARTICLE VIII 

RESTRICTED STOCK 
 8.1
Awards of Restricted Stock. Shares of Restricted Stock may be issued either alone or in addition to other Awards granted under the Plan. The Committee shall determine the Eligible Individuals, to whom, and the time or times at which,
grants of Restricted Stock shall be made, the number of shares to be awarded, the price (if any) to be paid by the Participant (subject to Section 8.2), the time or times within which such Awards may be subject to forfeiture, the vesting
schedule (subject to Section 5.4) and rights to acceleration thereof, and all other terms and conditions of the Awards. 
 Unless
otherwise determined by the Committee at grant, each Award of Restricted Stock shall provide that in the event that the Participant engages in Detrimental Activity prior to, or during the one-year period
after, any vesting of Restricted Stock, the Committee may direct that all unvested Restricted Stock shall be immediately forfeited to the Company and that the Participant shall pay over to the Company an amount equal to the Fair Market Value at the
time of vesting of any Restricted Stock which had vested in the period referred to above. 
 The Committee may condition the grant or
vesting of Restricted Stock upon the attainment of specified performance targets (including, the Performance Goals) or such other factor as the Committee may determine in its sole discretion, including to comply with the requirements of
Section 162(m) of the Code. 
 8.2 Awards and Certificates. Eligible Individuals selected to receive Restricted Stock
shall not have any right with respect to such Award, unless and until such Participant has delivered a fully executed copy of the agreement evidencing the Award to the Company and has otherwise complied with the applicable terms and conditions of
such Award. Further, such Award shall be subject to the following conditions: 
 (a) Purchase Price. The purchase
price of Restricted Stock shall be fixed by the Committee. Subject to Section 4.3, the purchase price for shares of Restricted Stock may be zero to the extent permitted by applicable law, and, to the extent not so permitted, such purchase price
may not be less than par value. 
 (b) Acceptance. Awards of Restricted Stock must be accepted within a period of 60
days (or such shorter period as the Committee may specify at grant) after the grant date, by executing a Restricted Stock agreement and by paying whatever price (if any) the Committee has designated thereunder. 

(c) Legend. Each Participant receiving Restricted Stock shall be issued a stock certificate in respect of such shares of
Restricted Stock, unless the Committee elects to use another system, such as book entries by the transfer agent, as evidencing ownership of shares of Restricted Stock. Such certificate shall be registered in the name of such Participant, and shall,
in addition to such legends required by applicable securities laws, bear an appropriate legend referring to the terms, conditions, and restrictions applicable to such Award, substantially in the following form: 

“The anticipation, alienation, attachment, sale, transfer, assignment, pledge, encumbrance or charge of the shares of
stock represented hereby are subject to the terms and conditions (including forfeiture) of the Fourth Amended and Restated U.S. Silica Holdings, Inc. (the “Company”) 2011 Incentive Compensation Plan (the “Plan”) and an Agreement
entered into between the registered owner and the Company dated                        . Copies of
such Plan and Agreement are on file at the principal office of the Company.” 

  
 A-17 

 (d) Custody. If stock certificates are issued in respect of shares of
Restricted Stock, the Committee may require that any stock certificates evidencing such shares be held in custody by the Company until the restrictions thereon shall have lapsed, and that, as a condition of any grant of Restricted Stock, the
Participant shall have delivered a duly signed stock power or other instruments of assignment (including a power of attorney), each endorsed in blank with a guarantee of signature if deemed necessary or appropriate by the Company, which would permit
transfer to the Company of all or a portion of the shares subject to the Restricted Stock Award in the event that such Award is forfeited in whole or part. 

8.3 Restrictions and Conditions. The shares of Restricted Stock awarded pursuant to the Plan shall be subject to the following
restrictions and conditions: 
 (a) Restriction Period. (i) The Participant shall not be permitted to Transfer
shares of Restricted Stock awarded under the Plan during the period or periods set by the Committee (the “Restriction Period”) commencing on the date of such Award, as set forth in the Restricted Stock Award Agreement and such
agreement shall set forth a vesting schedule and any event that would accelerate vesting of the shares of Restricted Stock. Within these limits, based on service, attainment of Performance Goals pursuant to Section 8.3(a)(ii) and/or such other
factors or criteria as the Committee may determine in its sole discretion, the Committee may condition the grant or provide for the lapse of such restrictions in installments in whole or in part, or may accelerate the vesting of all or any part of
any Restricted Stock Award and/or waive the deferral limitations for all or any part of any Restricted Stock Award. 
 (ii)
If the grant of shares of Restricted Stock or the lapse of restrictions is based on the attainment of Performance Goals, the Committee shall establish the objective Performance Goals and the applicable vesting percentage of the Restricted Stock
applicable to each Participant or class of Participants in writing prior to the beginning of the applicable fiscal year or at such later date as otherwise determined by the Committee and while the outcome of the Performance Goals are substantially
uncertain. Such Performance Goals may incorporate provisions for disregarding (or adjusting for) changes in accounting methods, corporate transactions (including, without limitation, dispositions and acquisitions) and other similar type events or
circumstances. With regard to a Restricted Stock Award that is intended to comply with Section 162(m) of the Code, to the extent that any such provision would create impermissible discretion under Section 162(m) of the Code or otherwise
violate Section 162(m) of the Code, such provision shall be of no force or effect. 
 (b) Rights as a
Stockholder. Except as provided in Section 8.3(a) and this Section 8.3(b) and as otherwise determined by the Committee, the Participant shall have, with respect to the shares of Restricted Stock, all of the rights of a holder of shares
of Common Stock of the Company including, without limitation, the right to vote such shares, subject to and conditioned upon the full vesting of shares of Restricted Stock, the right to tender such shares, and the right to receive all dividends and
other distributions paid with respect to the Restricted Stock, provided that such dividends or other distributions will be subject to the same vesting requirements as the underlying Restricted Stock and shall be paid at the time the Restricted Stock
becomes vested. If dividends or distributions are paid in shares of Common Stock, such shares shall be deposited with the Company and shall be subject to the same restrictions on transferability and forfeitability as the Restricted Stock with
respect to which they were paid. The Committee may, in its sole discretion, determine at the time of grant that the payment of dividends shall be deferred until, and conditioned upon, the expiration of the applicable Restriction Period. 

(c) Termination. Unless otherwise determined by the Committee at grant or, if no rights of the Participant are reduced,
thereafter, subject to the applicable provisions of the Award Agreement and the Plan, upon a Participant’s Termination for any reason during the relevant Restriction Period, all Restricted Stock still subject to restriction will be forfeited in
accordance with the terms and conditions established by the Committee at grant or thereafter. 

  
 A-18 

 (d) Lapse of Restrictions. If and when the Restriction Period expires
without a prior forfeiture of the Restricted Stock, the certificates for such shares, if any, shall be delivered to the Participant, unless the Committee elects to use another system, such as book entries by the transfer agent. All legends shall be
removed from said certificates at the time of delivery to the Participant, except as otherwise required by applicable law or other limitations imposed by the Committee. 

ARTICLE IX 
 PERFORMANCE
AWARDS 
 9.1 Performance Awards. The Committee may grant a Performance Award to a Participant payable upon the attainment
of specific Performance Goals. The Committee may grant Performance Awards that are intended to qualify as “performance-based compensation” under Section 162(m) of the Code, as well as Performance Awards that are not intended to
qualify as “performance-based compensation” under Section 162(m) of the Code. If the Performance Award is payable in shares of Restricted Stock, such shares shall be transferable to the Participant only upon attainment of the relevant
Performance Goal in accordance with Article VIII. If the Performance Award is payable in cash, it may be paid upon the attainment of the relevant Performance Goals either in cash or in shares of Restricted Stock (based on the then current Fair
Market Value of such shares), as determined by the Committee, in its sole and absolute discretion. Each Performance Award shall be evidenced by an Award Agreement in such form that is not inconsistent with the Plan and that the Committee may from
time to time approve. 
 Unless otherwise determined by the Committee at grant, each Performance Award shall provide that in the event the
Participant engages in Detrimental Activity prior to, or during the one-year period after, any vesting of the Performance Award, the Committee may direct (at any time within one year thereafter) that all of
the unvested portion of the Performance Award shall be immediately forfeited to the Company and that the Participant shall pay over to the Company an amount equal to any gain that the Participant realized from any Performance Award that had vested
in the period referred to above. 
 With respect to Performance Awards that are intended to qualify as “performance-based
compensation” under Section 162(m) of the Code, the Committee shall condition the right to payment of any Performance Award upon the attainment of objective Performance Goals established pursuant to Section 9.2(c). 

9.2 Terms and Conditions. Performance Awards awarded pursuant to this Article IX shall be subject to the following terms and
conditions: 
 (a) Earning of Performance Award. At the expiration of the applicable Performance Period, the Committee
shall determine the extent to which the Performance Goals established pursuant to Section 9.2(c) are achieved and the percentage of each Performance Award that has been earned. 

(b) Non-Transferability. Subject to the applicable provisions of the Award
Agreement and the Plan, Performance Awards may not be Transferred during the Performance Period. 
 (c) Objective
Performance Goals, Formulae or Standards. With respect to Performance Awards that are intended to qualify as “performance-based compensation” under Section 162(m) of the Code, the Committee shall establish the objective
Performance Goals for the earning of Performance Awards based on a Performance Period applicable to each Participant or class of Participants in writing prior to the beginning of the applicable Performance Period or at such later date as permitted
under Section 162(m) of the Code and while the outcome of the Performance Goals are substantially uncertain. Such Performance Goals may incorporate, if and only to the extent permitted under Section 162(m) of the Code, provisions for
disregarding (or adjusting for) changes in accounting methods, corporate transactions (including, without limitation, dispositions and acquisitions) and other similar type events or circumstances. To the extent that any such provision would create
impermissible discretion under Section 162(m) of the Code or otherwise violate Section 162(m) of the Code, such provision shall be of no force or effect, with respect to Performance Awards that are intended to qualify as
“performance-based compensation” under Section 162(m) of the Code. 

  
 A-19 

 (d) Dividends. Unless otherwise determined by the Committee at the
time of grant, amounts equal to dividends declared during the Performance Period with respect to the number of shares of Common Stock covered by a Performance Award will not be paid to the Participant. 

(e) Payment. Following the Committee’s determination in accordance with Section 9.2(a), the Company shall
settle Performance Awards, in such form (including, without limitation, in shares of Common Stock or in cash) as determined by the Committee, in an amount equal to such Participant’s earned Performance Awards. Notwithstanding the foregoing, the
Committee may, in its sole discretion, award an amount less than the earned Performance Awards and/or subject the payment of all or part of any Performance Award to additional vesting, forfeiture and deferral conditions as it deems appropriate. 

(f) Termination. Subject to the applicable provisions of the Award Agreement and the Plan, upon a Participant’s
Termination for any reason during the Performance Period for a given Performance Award, the Performance Award in question will vest or be forfeited in accordance with the terms and conditions established by the Committee at grant. 

(g) Accelerated Vesting. Based on service, performance and/or such other factors or criteria, if any, as the Committee
may determine, the Committee may, at or after grant, accelerate the vesting of all or any part of any Performance Award. 
 ARTICLE X

 OTHER STOCK-BASED AND CASH-BASED AWARDS 

10.1 Other Stock-Based Awards. The Committee is authorized to grant to Eligible Individuals Other Stock-Based Awards that are
payable in, valued in whole or in part by reference to, or otherwise based on or related to shares of Common Stock, including but not limited to, shares of Common Stock awarded purely as a bonus and not subject to restrictions or conditions, shares
of Common Stock in payment of the amounts due under an incentive or performance plan sponsored or maintained by the Company or an Affiliate, stock equivalent units, restricted stock units, and Awards valued by reference to book value of shares of
Common Stock. Other Stock-Based Awards may be granted either alone or in addition to or in tandem with other Awards granted under the Plan. 

Subject to the provisions of the Plan, the Committee shall have authority to determine the Eligible Individuals, to whom, and the time or
times at which, such Awards shall be made, the number of shares of Common Stock to be awarded pursuant to such Awards, and all other conditions of the Awards. The Committee may also provide for the grant of Common Stock under such Awards upon the
completion of a specified Performance Period. 
 The Committee may condition the grant or vesting of Other Stock-Based Awards upon the
attainment of specified Performance Goals as the Committee may determine, in its sole discretion; provided that to the extent that such Other Stock-Based Awards are intended to comply with Section 162(m) of the Code, the Committee shall
establish the objective Performance Goals for the grant or vesting of such Other Stock-Based Awards based on a Performance Period applicable to each Participant or class of Participants in writing prior to the beginning of the applicable Performance
Period or at such later date as permitted under Section 162(m) of the Code and while the outcome of the Performance Goals are substantially uncertain. Such Performance Goals may incorporate, if and only to the extent permitted under
Section 162(m) of the Code, provisions for disregarding (or adjusting for) changes in accounting methods, corporate transactions (including, without limitation, dispositions and acquisitions) and other similar type events or circumstances. To
the extent that any such provision would create impermissible discretion under Section 162(m) of the Code or otherwise violate Section 162(m) of the Code, such provision shall be of no force or effect, with respect to Performance Awards
that are intended to qualify as “performance-based compensation” under Section 162(m) of the Code. 

  
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 10.2 Terms and Conditions. Other Stock-Based Awards made pursuant to this
Article X shall be subject to the following terms and conditions: 
 (a)
Non-Transferability. Subject to the applicable provisions of the Award Agreement and the Plan, shares of Common Stock subject to Awards made under this Article X may not be Transferred prior to the date
on which the shares are issued, or, if later, the date on which any applicable restriction, performance or deferral period lapses. 

(b) Dividends. Unless otherwise determined by the Committee at the time of Award, subject to the provisions of the Award
Agreement and the Plan, the recipient of an Award under this Article X shall not be entitled to receive, currently or on a deferred basis, dividends or dividend equivalents with respect to the number of shares of Common Stock covered by the Award,
as determined at the time of the Award by the Committee, in its sole discretion. 
 (c) Vesting. Subject to
Section 5.4, any Award under this Article X and any Common Stock covered by any such Award shall vest or be forfeited to the extent so provided in the Award Agreement, as determined by the Committee, in its sole discretion. 

(d) Price. Common Stock issued on a bonus basis under this Article X may be issued for no cash consideration. Common
Stock purchased pursuant to a purchase right awarded under this Article X shall be priced, as determined by the Committee in its sole discretion. 

10.3 Other Cash-Based Awards. The Committee may from time to time grant Other Cash-Based Awards to Eligible Individuals in such
amounts, on such terms and conditions, and for such consideration, including no consideration or such minimum consideration as may be required by applicable law, as it shall determine in its sole discretion. Other Cash-Based Awards may be granted
subject to the satisfaction of vesting conditions or may be awarded purely as a bonus and not subject to restrictions or conditions, and if subject to vesting conditions, the Committee may accelerate the vesting of such Awards at any time. The grant
of an Other Cash-Based Award shall not require a segregation of any of the Company’s assets for satisfaction of the Company’s payment obligation thereunder. 

10.4 Detrimental Activity. Unless otherwise determined by the Committee at grant, the Award Agreement shall provide that
(i) in the event that the Participant engages in Detrimental Activity prior to any exercise, distribution or settlement of any Other Stock-Based Award and/or Other Cash-Based Award, such Other Stock-Based Awards and/or Other Cash-Based Awards
held by the Participant shall thereupon terminate and expire, (ii) as a condition of the exercise, distribution or settlement of an Other Stock-Based Award and/or Other Cash-Based Award, the Participant shall be required to certify (or shall be
deemed to have certified) at the time of exercise in a manner acceptable to the Company that the Participant is in compliance with the terms and conditions of the Plan and that the Participant has not engaged in, and does not intend to engage in,
any Detrimental Activity, and (iii) in the event that the Participant engages in Detrimental Activity during the one-year period commencing on the date of exercise, distribution, or settlement of an Other
Stock-Based Award and/or Other Cash-Based Award, the Company shall be entitled to recover from the Participant at any time within one year after such exercise, settlement, or distribution, and the Participant shall pay over to the Company, an amount
equal to any gain realized as a result of the exercise, distribution or settlement (whether at the time of exercise, distribution or settlement or thereafter). 

  
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 ARTICLE XI 

CHANGE IN CONTROL PROVISIONS 

11.1 Benefits. In the event of a Change in Control of the Company (as defined below), and except as otherwise provided by the
Committee in an Award Agreement, a Participant’s unvested Awards shall not vest and a Participant’s Awards shall be treated in accordance with one of the following methods as determined by the Committee: 

(a) Awards, whether or not then vested, shall be continued, assumed, have new rights substituted therefor or be treated in
accordance with Section 4.2(d) hereof in a manner consistent with the requirements of Section 409A of the Code, as determined by the Committee, and restrictions to which shares of Restricted Stock or any other Award granted prior to the
Change in Control are subject shall not lapse upon a Change in Control and the Restricted Stock or other Award shall, where appropriate in the sole discretion of the Committee, receive the same distribution as other Common Stock on such terms as
determined by the Committee; provided that the Committee may decide to award additional Restricted Stock or other Awards in lieu of any cash distribution. Notwithstanding anything to the contrary herein, for purposes of Incentive Stock Options, any
assumed or substituted Stock Option shall comply with the requirements of Treasury Regulation Section 1.424-1 (and any amendment thereto). 

(b) The Committee, in its sole discretion, may provide for the purchase of any Awards by the Company or an Affiliate for an
amount of cash equal to the excess (if any) of the Change in Control Price (as defined below) of the shares of Common Stock covered by such Awards, over the aggregate exercise price of such Awards. For purposes of this Section 11.1,
“Change in Control Price” shall mean the highest price per share of Common Stock paid in any transaction related to a Change in Control of the Company. 

(c) Notwithstanding any other provision herein to the contrary, the Committee may, in its sole discretion, provide for
accelerated vesting or lapse of restrictions, of an Award in connection with a Change of Control of the Company. 
 11.2 Change in
Control. Unless otherwise determined by the Committee in the applicable Award Agreement or other written agreement approved by the Committee, a “Change in Control” shall be deemed to occur if: 

(a) any “person,” as such term is used in Sections 13(d) and 14(d) of the Exchange Act (other than the Company, any
trustee or other fiduciary holding securities under any employee benefit plan of the Company, or any company owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their ownership of Common Stock
of the Company), becoming the beneficial owner (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing 50% or more of the combined voting power of
the Company’s then outstanding securities; 
 (b) during any period of two consecutive years, individuals who at the
beginning of such period constitute the Board, and any new director (other than a director designated by a person who has entered into an agreement with the Company to effect a transaction described in paragraph (a), (c), or (d) of this
Section 11.2 or a director whose initial assumption of office occurs as a result of either an actual or threatened election contest (as such term is used in Rule 14a-11 of Regulation 14A promulgated under
the Exchange Act) or other actual or threatened solicitation of proxies or consents by or on behalf of a person other than the Board) whose election by the Board or nomination for election by the Company’s stockholders was approved by a vote of
at least two-thirds of the directors then still in office who either were directors at the beginning of the two-year period or whose election or nomination for election
was previously so approved, cease for any reason to constitute at least a majority of the Board; 
 (c) a merger or
consolidation of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding
or by being converted into voting securities of the surviving entity) more than 50% of the combined voting power of the voting securities of the Company or such surviving entity outstanding immediately after such merger or

  
 A-22 

 
consolidation; provided, however, that a merger or consolidation effected to implement a recapitalization of the Company (or similar transaction) in which no person (other than those covered by
the exceptions in Section 11.2(a)) acquires more than 50% of the combined voting power of the Company’s then outstanding securities shall not constitute a Change in Control of the Company; or 

(d) a complete liquidation or dissolution of the Company or the consummation of a sale or disposition by the Company of all or
substantially all of the Company’s assets other than the sale or disposition of all or substantially all of the assets of the Company to a person or persons who beneficially own, directly or indirectly, 50% or more of the combined voting power
of the outstanding voting securities of the Company at the time of the sale. 
 Notwithstanding the foregoing, with respect to any Award
that is characterized as “nonqualified deferred compensation” within the meaning of Section 409A of the Code, an event shall not be considered to be a Change in Control under the Plan for purposes of payment of any such Award unless
such event is also a “change in ownership,” a “change in effective control” or a “change in the ownership of a substantial portion of the assets” of the Company within the meaning of Section 409A of the Code. 

ARTICLE XII 
 TERMINATION
OR AMENDMENT OF PLAN 
 12.1 Termination or Amendment. Notwithstanding any other provision of the Plan, the Board may at
any time, and from time to time, amend, in whole or in part, any or all of the provisions of the Plan (including any amendment deemed necessary to ensure that the Company may comply with any regulatory requirement referred to in Article XIV or
Section 409A of the Code), or suspend or terminate it entirely, retroactively or otherwise; provided, however, that, unless otherwise required by law or specifically provided herein, the rights of a Participant with respect to Awards granted
prior to such amendment, suspension or termination, may not be impaired without the consent of such Participant and, provided further, that without the approval of the holders of the Company’s Common Stock entitled to vote in accordance with
applicable law, no amendment may be made that would (i) increase the aggregate number of shares of Common Stock that may be issued under the Plan (except by operation of Section 4.2); (ii) increase the maximum individual Participant
limitations for a fiscal year under Section 4.1(c) (except by operation of Section 4.2); (iii) change the classification of individuals eligible to receive Awards under the Plan; (iv) decrease the minimum option price of any Stock
Option or Stock Appreciation Right; (v) extend the maximum option period under Section 6.4; (vi) alter the Performance Goals for Restricted Stock, Performance Awards or Other Stock-Based Awards as set forth in Exhibit A hereto;
(vii) award any Stock Option or Stock Appreciation Right in replacement of a canceled Stock Option or Stock Appreciation Right with a higher exercise price than the replacement award, except in accordance with Section 6.4(l); or
(viii) require stockholder approval in order for the Plan to continue to comply with the applicable provisions of Section 162(m) of the Code or, to the extent applicable to Incentive Stock Options, Section 422 of the Code. In no event
may the Plan be amended without the approval of the stockholders of the Company in accordance with the applicable laws of the State of Delaware to increase the aggregate number of shares of Common Stock that may be issued under the Plan, decrease
the minimum exercise price of any Award, or to make any other amendment that would require stockholder approval under Financial Industry Regulatory Authority (FINRA) rules and regulations or the rules of any exchange or system on which the
Company’s securities are listed or traded at the request of the Company. Notwithstanding anything herein to the contrary, the Board may amend the Plan or any Award Agreement at any time without a Participant’s consent to comply with
applicable law including Section 409A of the Code. 
 The Committee may amend the terms of any Award theretofore granted, prospectively
or retroactively, but, subject to Article IV or as otherwise specifically provided herein, no such amendment or other action by the Committee shall impair the rights of any holder without the holder’s consent. 

  
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 ARTICLE XIII 

UNFUNDED STATUS OF PLAN 

The Plan is intended to constitute an “unfunded” plan for incentive and deferred compensation. With respect to any payment as to
which a Participant has a fixed and vested interest but which are not yet made to a Participant by the Company, nothing contained herein shall give any such Participant any right that is greater than those of a general unsecured creditor of the
Company. 
 ARTICLE XIV 

GENERAL PROVISIONS 
 14.1
Legend. The Committee may require each person receiving shares of Common Stock pursuant to a Stock Option or other Award under the Plan to represent to and agree with the Company in writing that the Participant is acquiring the shares
without a view to distribution thereof. In addition to any legend required by the Plan, the certificates for such shares may include any legend that the Committee deems appropriate to reflect any restrictions on Transfer. All certificates for shares
of Common Stock delivered under the Plan shall be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations and other requirements of the Securities and Exchange Commission, any
stock exchange upon which the Common Stock is then listed or any national securities exchange system upon whose system the Common Stock is then quoted, any applicable federal or state securities law, and any applicable corporate law, and the
Committee may cause a legend or legends to be put on any such certificates to make appropriate reference to such restrictions. 
 14.2
Other Plans. Nothing contained in the Plan shall prevent the Board from adopting other or additional compensation arrangements, subject to stockholder approval if such approval is required, and such arrangements may be either generally
applicable or applicable only in specific cases. 
 14.3 No Right to Employment/Directorship/Consultancy. Neither the Plan nor
the grant of any Option or other Award hereunder shall give any Participant or other employee, Consultant or Non-Employee Director any right with respect to continuance of employment, consultancy or
directorship by the Company or any Affiliate, nor shall there be a limitation in any way on the right of the Company or any Affiliate by which an employee is employed or a Consultant or Non-Employee Director
is retained to terminate his or her employment, consultancy or directorship at any time. 
 14.4 Withholding of Taxes. The
Company shall have the right to deduct from any payment to be made pursuant to the Plan, or to otherwise require, prior to the issuance or delivery of shares of Common Stock or the payment of any cash hereunder, payment by the Participant of, any
federal, state or local taxes required by law to be withheld. Upon the vesting of Restricted Stock (or other Award that is taxable upon vesting), or upon making an election under Section 83(b) of the Code, a Participant shall pay all required
withholding to the Company. Any minimum statutorily required withholding obligation with regard to any Participant may be satisfied, subject to the consent of the Committee, by reducing the number of shares of Common Stock otherwise deliverable or
by delivering shares of Common Stock already owned. Any fraction of a share of Common Stock required to satisfy such tax obligations shall be disregarded and the amount due shall be paid instead in cash by the Participant. 

14.5 No Assignment of Benefits. No Award or other benefit payable under the Plan shall, except as otherwise specifically
provided by law or permitted by the Committee, be Transferable in any manner, and any attempt to Transfer any such benefit shall be void, and any such benefit shall not in any manner be liable for or subject to the debts, contracts, liabilities,
engagements or torts of any person who shall be entitled to such benefit, nor shall it be subject to attachment or legal process for or against such person. 

  
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 14.6 Listing and Other Conditions. 

(a) Unless otherwise determined by the Committee, as long as the Common Stock is listed on a national securities exchange or
system sponsored by a national securities association, the issuance of shares of Common Stock pursuant to an Award shall be conditioned upon such shares being listed on such exchange or system. The Company shall have no obligation to issue such
shares unless and until such shares are so listed, and the right to exercise any Option or other Award with respect to such shares shall be suspended until such listing has been effected. 

(b) If at any time counsel to the Company shall be of the opinion that any sale or delivery of shares of Common Stock pursuant
to an Option or other Award is or may in the circumstances be unlawful or result in the imposition of excise taxes on the Company under the statutes, rules or regulations of any applicable jurisdiction, the Company shall have no obligation to make
such sale or delivery, or to make any application or to effect or to maintain any qualification or registration under the Securities Act or otherwise, with respect to shares of Common Stock or Awards, and the right to exercise any Option or other
Award shall be suspended until, in the opinion of said counsel, such sale or delivery shall be lawful or will not result in the imposition of excise taxes on the Company. 

(c) Upon termination of any period of suspension under this Section 14.6, any Award affected by such suspension which
shall not then have expired or terminated shall be reinstated as to all shares available before such suspension and as to shares which would otherwise have become available during the period of such suspension, but no such suspension shall extend
the term of any Award. 
 (d) A Participant shall be required to supply the Company with certificates, representations and
information that the Company requests and otherwise cooperate with the Company in obtaining any listing, registration, qualification, exemption, consent or approval the Company deems necessary or appropriate. 

14.7 Stockholders Agreement and Other Requirements. Notwithstanding anything herein to the contrary, as a condition to the
receipt of shares of Common Stock pursuant to an Award under the Plan, to the extent required by the Committee, the Participant shall execute and deliver a stockholder’s agreement or such other documentation that shall set forth certain
restrictions on transferability of the shares of Common Stock acquired upon exercise or purchase, and such other terms as the Board or Committee shall from time to time establish. Such stockholder’s agreement or other documentation shall apply
to the Common Stock acquired under the Plan and covered by such stockholder’s agreement or other documentation. The Company may require, as a condition of exercise, the Participant to become a party to any other existing stockholder agreement
(or other agreement). 
 14.8 Governing Law. The Plan and actions taken in connection herewith shall be governed and construed
in accordance with the laws of the State of Delaware (regardless of the law that might otherwise govern under applicable Delaware principles of conflict of laws). 

14.9 Jurisdiction; Waiver of Jury Trial. Any suit, action or proceeding with respect to the Plan or any Award Agreement, or any
judgment entered by any court of competent jurisdiction in respect of any thereof, shall be resolved only in the courts of the State of Delaware or the United States District Court for the District of Delaware and the appellate courts having
jurisdiction of appeals in such courts. In that context, and without limiting the generality of the foregoing, the Company and each Participant shall irrevocably and unconditionally (a) submit in any proceeding relating to the Plan or any Award
Agreement, or for the recognition and enforcement of any judgment in respect thereof (a “Proceeding”), to the exclusive jurisdiction of the courts of the State of Delaware, the court of the United States of America for the District
of Delaware, and appellate courts having jurisdiction of appeals from any of the foregoing, and agree that all claims in respect of any such Proceeding shall be heard and determined in such Delaware State court or, to the extent permitted by law, in
such federal court, (b) consent that any such Proceeding may and shall be brought in such courts and waives any objection that the Company and each Participant may now or thereafter have to the venue or jurisdiction of any such Proceeding in
any 

  
 A-25 

 
such court or that such Proceeding was brought in an inconvenient court and agree not to plead or claim the same, (c) waive all right to trial by jury in any Proceeding (whether based on
contract, tort or otherwise) arising out of or relating to the Plan or any Award Agreement, (d) agree that service of process in any such Proceeding may be effected by mailing a copy of such process by registered or certified mail (or any
substantially similar form of mail), postage prepaid, to such party, in the case of a Participant, at the Participant’s address shown in the books and records of the Company or, in the case of the Company, at the Company’s principal
offices, attention General Counsel, and (e) agree that nothing in the Plan shall affect the right to effect service of process in any other manner permitted by the laws of the State of Delaware. 

14.10 Construction. Wherever any words are used in the Plan in the masculine gender they shall be construed as though they were
also used in the feminine gender in all cases where they would so apply, and wherever words are used herein in the singular form they shall be construed as though they were also used in the plural form in all cases where they would so apply. 

14.11 Other Benefits. No Award granted or paid out under the Plan shall be deemed compensation for purposes of computing
benefits under any retirement plan of the Company or its Affiliates nor affect any benefit under any other benefit plan now or subsequently in effect under which the availability or amount of benefits is related to the level of compensation. 

14.12 Costs. The Company shall bear all expenses associated with administering this Plan, including expenses of issuing Common
Stock pursuant to Awards hereunder. 
 14.13 No Right to Same Benefits. The provisions of Awards need not be the same with
respect to each Participant, and such Awards to individual Participants need not be the same in subsequent years. 
 14.14
Death/Disability. The Committee may in its discretion require the transferee of a Participant to supply it with written notice of the Participant’s death or Disability and to supply it with a copy of the will (in the case of the
Participant’s death) or such other evidence as the Committee deems necessary to establish the validity of the transfer of an Award. The Committee may also require that the agreement of the transferee to be bound by all of the terms and
conditions of the Plan. 
 14.15 Section 16(b) of the Exchange Act. All elections and transactions under the Plan by persons
subject to Section 16 of the Exchange Act involving shares of Common Stock are intended to comply with any applicable exemptive condition under Rule 16b-3. The Committee may establish and adopt written
administrative guidelines, designed to facilitate compliance with Section 16(b) of the Exchange Act, as it may deem necessary or proper for the administration and operation of the Plan and the transaction of business thereunder. 

14.16 Section 409A of the Code. The Plan is intended to comply with the applicable requirements of Section 409A of the Code
and shall be limited, construed and interpreted in accordance with such intent. To the extent that any Award is subject to Section 409A of the Code, it shall be paid in a manner that will comply with Section 409A of the Code, including
proposed, temporary or final regulations or any other guidance issued by the Secretary of the Treasury and the Internal Revenue Service with respect thereto. Notwithstanding anything herein to the contrary, any provision in the Plan that is
inconsistent with Section 409A of the Code shall be deemed to be amended to comply with Section 409A of the Code and to the extent such provision cannot be amended to comply therewith, such provision shall be null and void. The Company
shall have no liability to a Participant, or any other party, if an Award that is intended to be exempt from, or compliant with, Section 409A of the Code is not so exempt or compliant or for any action taken by the Committee or the Company and,
in the event that any amount or benefit under the Plan becomes subject to penalties under Section 409A of the Code, responsibility for payment of such penalties shall rest solely with the affected Participants and not with the Company.
Notwithstanding any contrary provision in the Plan or Award Agreement, any payment(s) of “nonqualified deferred compensation” (within the meaning of Section 409A of the Code) that are otherwise required to be made under the Plan to a
“specified employee” (as defined under Section 409A of the Code) as a result of his or 

  
 A-26 

 
her separation from service (other than a payment that is not subject to Section 409A of the Code) shall be delayed for the first six (6) months following such separation from service
(or, if earlier, the date of death of the specified employee) and shall instead be paid (in a manner set forth in the Award Agreement) on the payment date that immediately follows the end of such six-month
period or as soon as administratively practicable thereafter to the extent permitted under Section 409A of the Code. 
 14.17
Successor and Assigns. The Plan shall be binding on all successors and permitted assigns of a Participant, including, without limitation, the estate of such Participant and the executor, administrator or trustee of such estate. 

14.18 Severability of Provisions. If any provision of the Plan shall be held invalid or unenforceable, such invalidity or
unenforceability shall not affect any other provisions hereof, and the Plan shall be construed and enforced as if such provisions had not been included. 

14.19 Payments to Minors, Etc. Any benefit payable to or for the benefit of a minor, an incompetent person or other person
incapable of receipt thereof shall be deemed paid when paid to such person’s guardian or to the party providing or reasonably appearing to provide for the care of such person, and such payment shall fully discharge the Committee, the Board, the
Company, its Affiliates and their employees, agents and representatives with respect thereto. 
 14.20
Lock-Up Agreements. As a condition to the grant of an Award, if requested by the Company and the lead underwriter of any public offering of the Common Stock (the “Lead
Underwriter”), a Participant shall irrevocably agree not to sell, contract to sell, grant any option to purchase, transfer the economic risk of ownership in, make any short sale of, pledge or otherwise transfer or dispose of, any interest
in any Common Stock or any securities convertible into, derivative of, or exchangeable or exercisable for, or any other rights to purchase or acquire Common Stock (except Common Stock included in such public offering or acquired on the public market
after such offering) during such period of time following the effective date of a registration statement of the Company filed under the Securities Act that the Lead Underwriter shall specify (the
“Lock-Up Period”). The Participant shall further agree to sign such documents as may be requested by the Lead Underwriter to effect the foregoing and agree that the Company may impose
stop-transfer instructions with respect to Common Stock acquired pursuant to an Award until the end of such Lock-Up Period. 

14.21 Headings and Captions. The headings and captions herein are provided for reference and convenience only, shall not be
considered part of the Plan, and shall not be employed in the construction of the Plan. 
 14.22 Section 162(m) of the Code.
Notwithstanding any other provision of the Plan to the contrary, the provisions of the Plan requiring compliance with Section 162(m) of the Code shall not apply to Awards granted under the Plan that are not intended to qualify as
“performance-based compensation” under Section 162(m) of the Code. 
 14.23 Company Recoupment of Awards. A
Participant’s rights with respect to any Award hereunder shall in all events be subject to (i) any right that the Company may have under any Company recoupment policy or other agreement or arrangement with a Participant, or (ii) any
right or obligation that the Company may have regarding the clawback of “incentive-based compensation” under Section 10D of the Exchange Act and any applicable rules and regulations promulgated thereunder from time to time by the U.S.
Securities and Exchange Commission. 
 ARTICLE XV 

EFFECTIVE DATE OF PLAN 

The Plan shall become effective at 12:01 a.m. Eastern Time on May 12, 2022, subject to the approval of the Plan by the stockholders of
the Company in accordance with the requirements of the laws of the State of Delaware. 

  
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 ARTICLE XVI 

TERM OF PLAN 
 No Award
shall be granted pursuant to the Plan on or after the tenth anniversary of the earlier of the date that the Plan is adopted or the date of stockholder approval, but Awards granted prior to such tenth anniversary may extend beyond that date; provided
that no Award (other than a Stock Option or Stock Appreciation Right) that is intended to be “performance-based compensation” under Section 162(m) of the Code shall be granted on or after the fifth anniversary of the stockholder
approval of the Plan unless the Performance Goals are re-approved (or other designated Performance Goals are approved) by the stockholders no later than the first stockholder meeting that occurs in the fifth
year following the year in which stockholders approve the Performance Goals. 
 ARTICLE XVII 

NAME OF PLAN 
 This Plan
shall be known as the “Fourth Amended and Restated U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan.” 

  
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 EXHIBIT A 

PERFORMANCE GOALS 

To the extent permitted under Section 162(m) of the Code, performance goals established for purposes of Awards intended to be
“performance-based compensation” under Section 162(m) of the Code, shall be based on the attainment of certain target levels of, or a specified increase or decrease (as applicable) in one or more of the following performance goals:

  

	 	•	 	 earnings per share; 

  

	 	•	 	 operating income; 

  

	 	•	 	 gross income; 

  

	 	•	 	 net income (before or after taxes); 

 

	 	•	 	 cash flow; 

  

	 	•	 	 gross profit; 

  

	 	•	 	 gross profit return on investment; 

 

	 	•	 	 gross margin return on investment; 

 

	 	•	 	 gross margin; 

  

	 	•	 	 operating margin; 

  

	 	•	 	 working capital; 

  

	 	•	 	 earnings before interest and taxes; 

 

	 	•	 	 earnings before interest, tax, depreciation, depletion and amortization; 

 

	 	•	 	 return on equity; 

  

	 	•	 	 return on assets; 

  

	 	•	 	 return on capital; 

  

	 	•	 	 return on invested capital; 

 

	 	•	 	 net revenues; 

  

	 	•	 	 gross revenues; 

  

	 	•	 	 revenue growth; 

  

	 	•	 	 net revenues by segment; 

 

	 	•	 	 revenue growth by segment; 

 

	 	•	 	 overall contribution margin; 

 

	 	•	 	 contribution margin growth; 

 

	 	•	 	 contribution margin by segment; 

 

	 	•	 	 sales or market share; 

 

	 	•	 	 total shareholder return; 

 

	 	•	 	 economic value added; 

  

	 	•	 	 specified objectives with regard to limiting the level of increase in all or a portion of the Company’s bank
debt or other long-term or short-term public or private debt or other similar financial obligations of the Company, which may be calculated net of cash balances and/or other offsets and adjustments as may be established by the Committee in its sole
discretion; 

  
 A-29 

	 	•	 	 the fair market value of a share of Common Stock; 

 

	 	•	 	 the growth in the value of an investment in the Common Stock assuming the reinvestment of dividends;

  

	 	•	 	 reduction in operating expenses; 

 

	 	•	 	 volume growth by segment; 

 

	 	•	 	 overall volume growth; 

 

	 	•	 	 price growth by segment; 

 

	 	•	 	 overall price growth; 

  

	 	•	 	 reduction in variable costs; 

 

	 	•	 	 reduction in fixed costs; 

 

	 	•	 	 asset productivity; 

  

	 	•	 	 cost per ton; 

  

	 	•	 	 output per employee; 

  

	 	•	 	 logistics efficiency; or 

 

	 	•	 	 customer acquisitions. 

With respect to Awards that are intended to qualify as “performance-based compensation” under Section 162(m) of the Code, to
the extent permitted under Section 162(m) of the Code, the Committee may, in its sole discretion, also exclude, or adjust to reflect, the impact of an event or occurrence that the Committee determines should be appropriately excluded or
adjusted, including: 
 (a) restructurings, discontinued operations, extraordinary items or events, and other unusual or non-recurring charges as described in Accounting Standards Codification 225-20, “Extraordinary and Unusual Items,” and/or management’s discussion and analysis
of financial condition and results of operations appearing or incorporated by reference in the Company’s Form 10-K for the applicable year; 

(b) an event either not directly related to the operations of the Company or not within the reasonable control of the
Company’s management; or 
 (c) a change in tax law or accounting standards required by generally accepted accounting
principles. 
 Performance goals may also be based upon individual participant performance goals, as determined by the Committee, in its
sole discretion. In addition, Awards that are not intended to qualify as “performance-based compensation” under Section 162(m) of the Code may be based on the performance goals set forth herein or on such other performance goals as
determined by the Committee in its sole discretion. 
 In addition, such performance goals may be based upon the attainment of specified
levels of Company (or subsidiary, division, other operational unit or administrative department of the Company) performance under one or more of the measures described above relative to the performance of other corporations. With respect to Awards
that are intended to qualify as “performance-based compensation” under Section 162(m) of the Code, to the extent permitted under Section 162(m) of the Code, but only to the extent permitted under Section 162(m) of the Code
(including, without limitation, compliance with any requirements for stockholder approval), the Committee may also: 
 (a) designate
additional business criteria on which the performance goals may be based; or 
 (b) adjust, modify or amend the aforementioned business
criteria. 

  
 A-30 

 FOURTH AMENDED AND RESTATED 

U.S. SILICA HOLDINGS, INC. 
  

 
 2011 INCENTIVE
COMPENSATION PLAN 
  
  

TABLE OF CONTENTS 
  

					
	 ARTICLE I PURPOSE
	  	 	A-1	 
	 ARTICLE II DEFINITIONS
	  	 	A-1	 
	 ARTICLE III ADMINISTRATION
	  	 	A-6	 
	 ARTICLE IV SHARE LIMITATION
	  	 	A-8	 
	 ARTICLE V ELIGIBILITY
	  	 	A-11	 
	 ARTICLE VI STOCK OPTIONS
	  	 	A-11	 
	 ARTICLE VII STOCK APPRECIATION RIGHTS
	  	 	A-14	 
	 ARTICLE VIII RESTRICTED STOCK
	  	 	A-17	 
	 ARTICLE IX PERFORMANCE AWARDS
	  	 	A-19	 
	 ARTICLE X OTHER STOCK-BASED AND CASH-BASED AWARDS
	  	 	A-20	 
	 ARTICLE XI CHANGE IN CONTROL PROVISIONS
	  	 	A-22	 
	 ARTICLE XII TERMINATION OR AMENDMENT OF PLAN
	  	 	A-23	 
	 ARTICLE XIII UNFUNDED STATUS OF PLAN
	  	 	A-24	 
	 ARTICLE XIV GENERAL PROVISIONS
	  	 	A-24	 
	 ARTICLE XV EFFECTIVE DATE OF PLAN
	  	 	A-27	 
	 ARTICLE XVI TERM OF PLAN
	  	 	A-28	 
	 ARTICLE XVII NAME OF PLAN
	  	 	A-28	 
	 EXHIBIT A PERFORMANCE GOALS
	  	 	A-29	 

  
 A-31

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