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 Participants 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 Companys or its Affiliates 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 Participants Termination; (b) activity while employed or
performing services that results, or if known could result, in the Participants 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 Participants 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 Participants Termination, without, in all cases, written authorization from the Company; (e) the Participants 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 Participants Termination; or (g) breach of any agreement between the Participant and the Company or 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.
A-2