Document:

EX-10.35A

 Exhibit 10.35A 

Confidential Treatment Requested by Tesla Motors, Inc. 
  

 
 October 30, 2013 
  

	To:	Mr. Shinsuke Nakahori 

 Director, Portable Rechargeable Battery Business Division 

SANYO Electric Co., Ltd. 222-1, Kaminaizen, Sumoto City, Hyogo 565-8555, Japan 

Mr. Joseph Howell 

Panasonic Industrial Devices Sales Company of America 

Panasonic Corporation of North America 

Two Riverfront Plaza, 7th Floor, Newark, NJ 07102-5490 

This amendment (“Amendment”) is entered into by and between Tesla Motors, Inc. (“Tesla”) and Panasonic Industrial Devices
Sales Company of America f/k/a Panasonic Industrial Company, division of Panasonic Corporation of North America, and SANYO Electric Co., Ltd. acting through Portable Rechargeable Battery Business Division, the assignee of the Agreement from
Panasonic Corporation, acting through Energy Company (collectively, “Panasonic”) (Tesla and Panasonic are referred to collectively as the “Parties”) as of the date set forth above in connection with the
Parties’ Supply Agreement dated October 5, 2011 (as amended, the “Agreement”). All terms used but not otherwise defined herein shall have the meanings assigned to such terms in the Agreement. In consideration of the mutual
promises and mutual covenants set forth below and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree to amend the Agreement as follows: 

 

	 	1.	In Section 2(b) (Term) of the Agreement, the phrase “December 31, 2015” is deleted from the first sentence and replaced with “December 31, 2017.” 

 

	 	2.	For purposes of Section 3 (Forecast and Orders), Tesla’s subsidiaries and affiliates may issue Orders pursuant to the Agreement, and such Orders shall be deemed to be valid and binding Orders by the issuing
entity and the issuing entity shall be responsible for payment therefor. If the issuing entity fails to pay amounts due pursuant to an accepted Order by the applicable payment date, Panasonic shall notify Tesla and Tesla shall be responsible for
such payment. Items ordered pursuant to such Orders shall count against Tesla’s overall purchase commitments hereunder. 

  

	 	3.	Section 6(c) of the Agreement is amended to include the following additional sentence: “Seller shall use a bonded carrier from the U.S. port of entry to Tesla’s designated facility for each delivery
hereunder, unless Tesla has given express, prior written waiver of this requirement for a particular delivery.” 

  

	 	4.	Section 7 of the Agreement is amended to include the following additional section: “(e) In connection with the foregoing, the Parties have agreed to the Process and Procedures for Damaged Goods Arriving at
Tesla Motors dated June 22, 2012, which is hereby incorporated by reference into the Agreement.” 

  

	 	5.	The last sentence of Section 8(a) of the Agreement is hereby deleted in its entirety and replaced with the following: “Panasonic may, for good cause, propose a change to the payment terms and/or amount or
duration of credit extended to Tesla hereunder, and the Parties shall discuss any such proposal in good faith. Notwithstanding the foregoing, Panasonic reserves the right at any time, but only after a good faith discussion with Tesla, [***].”

  

					
	Amendment to Tesla-Panasonic Supply Agreement	  	 	Page 1 of 5	  
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 Confidential Treatment Requested by Tesla Motors, Inc. 

 
  

	 	6.	The following is added as a new Section 9(i): 

 (i) If, with respect to Items, Modules
and/or Finished Products, [***], Panasonic shall be liable for the [***]. Notwithstanding the foregoing, Panasonic shall not be liable under this paragraph to the extent that [***]. To the maximum extent permitted by law, Panasonic’s liability
to Tesla pursuant to this Section 9(i) shall not [***]. Panasonic’s liability set forth above shall be Tesla’s sole remedy in case of [***] and in no event shall Panasonic be liable for any lost goodwill, profit, revenue or savings in
connection with [***]. To the extent permitted by applicable law, Tesla shall (a) notify Panasonic promptly after becoming aware of [***] and [***] in connection with [***], to the extent related to the Items, (b) consult with Panasonic in
good faith regarding [***], and (c) provide such information as reasonably requested by Panasonic from time to time with respect to [***]. 
  

	 	7.	In Section 11 (Indemnification) of the Agreement, subsection (c) is hereby renumbered as subsection (d) and the following is added at the end of the subsection: “The indemnifying Party may
not[***].” 

  

	 	8.	In Section 11 (Indemnification) of the Agreement, a new subsection (c) is added as follows: 

(c) Infringement Indemnity by Panasonic. At any time during the term of this Agreement and thereafter, Panasonic shall indemnify and
hold the Tesla Parties harmless from and against any and all Claims arising out of any actual or alleged infringement or misappropriation of the patent, trademark, copyright, trade secret or other intellectual or industrial property rights of any
third party with respect to the extent caused by Panasonic and/or the Items as delivered by Panasonic; provided, however, that the foregoing indemnity shall not apply with respect to Claims to the extent [***]. 

 

	 	9.	Section 12(a) is amended and restated in its entirety as follows: 

 (a) Limitation of
Liability. 
 (i) TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW AND EXCEPT FOR (1) [***], (2) EACH PARTIES’
OBLIGATIONS SET FORTH IN SECTION 11, (3) [***], (4) TESLA’S OBLIGATIONS SET FORTH IN SECTION 12(d), AND (5) [***], NEITHER PARTY SHALL BE LIABLE OR RESPONSIBLE TO THE OTHER PARTY FOR ANY SPECIAL, INDIRECT,
INCIDENTAL, EXEMPLARY, CONSEQUENTIAL OR PUNITIVE DAMAGES ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT, INCLUDING, WITHOUT LIMITATION, ANY WORK DELAYS, LOST GOODWILL, PROFIT, REVENUE OR SAVINGS, LOSS OF USE, COST OF CAPITAL, COST OF SUBSTITUTE
EQUIPMENT, FACILITIES OR SERVICES, OR DOWNTIME COSTS, EVEN IF SUCH PARTY HAS BEEN ADVISED OR IS AWARE OF THE POSSIBILITY OF SUCH DAMAGES, AND NEITHER PARTY’S LIABILITY FOR MONETARY DAMAGES TO THE OTHER PARTY UNDER THIS AGREEMENT SHALL EXCEED
[***]. [***] MEANS AN AMOUNT EQUAL TO [***]. 
 (II) TESLA’S LIABILITY TO PANASONIC RESULTING FROM
[***] SHALL NOT EXCEED [***]. 
 (III) THE PARTIES AGREE THAT DAMAGES INCURRED DUE TO [***], WILL BE CONSIDERED
DIRECT DAMAGES. 

  

					
	Amendment to Tesla-Panasonic Supply Agreement	  	 	Page 2 of 5	  
	[***] Information has been omitted and filed separately with the Securities and Exchange Commission. Confidential Treatment has been requested with respect to the omitted portions.	   

 Confidential Treatment Requested by Tesla Motors, Inc. 

 
  

	 	10.	The current version Attachment 1 of the Agreement is no longer in effect and is hereby replaced in its entirety by Attachment 1-A, attached hereto. 

 

	 	11.	This Amendment, together with the Agreement (including any open purchase orders), constitutes the entire agreement between the Parties and supersedes all prior agreements and understandings, both oral and written,
between the Parties. This Amendment may be executed in counterparts, each of which when so executed and delivered will be deemed an original, and all of which taken together will constitute one and the same instrument. 

I am pleased that we have reached this point and look forward to a continuing productive relationship with you. Please confirm Seller’s agreement with
the foregoing by signing a copy of this letter where indicated below and returning it to me. 
  

	
	 Sincerely,

	
	 /s/ JB Straubel

	
	 JB Straubel

	 Chief Technology Officer

	 Tesla Motors, Inc.

	 3500 Deer Creek Road

	 Palo Alto, CA 94304

 Agreed to by Panasonic Industrial Devices Sales Company of America, division of Panasonic Corporation of North America 

 

			
	By:	  	/s/ Kazuto Nezu
		
	Name:	  	Kazuto Nezu
		
	Title:	  	Director, Panasonic Industrial Devices Sales Company of America, division of Panasonic Corporation of North America

 Agreed to by SANYO Electric Co., Ltd. acting through Portable Rechargeable Battery Business Division 

 

			
	By:	  	/s/ Shinsuke Nakahori
		
	Name:	  	Shinsuke Nakahori
		
	Title:	  	Director, SANYO Electric Co., Ltd. acting through Portable Rechargeable Battery Business Division

  

					
	Amendment to Tesla-Panasonic Supply Agreement	  	 	Page 3 of 5	  
	[***] Information has been omitted and filed separately with the Securities and Exchange Commission. Confidential Treatment has been requested with respect to the omitted portions.	   

 Confidential Treatment Requested by Tesla Motors, Inc. 

 
  
 

 
 Attachment 1-A 

List of Items, Pricing Mechanism 
  

	1.	Pricing for Cells Delivered Through December 31, 2013 

 [***]. 

 

	2.	Pricing for Cells Delivered After January 1, 2014 

  

	(a)	Cell Pricing. 

  

																	
	 2014-2015
	  	1Q14	 	2Q14*	 	3Q14*	 	4Q14*	 	1Q15*	 	2Q15*	 	3Q15*	 	4Q15*
	 Price for Li-Ion Cell [***] (Tesla Part No. [***]) 1
	  	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]
	 Quantity (millions)
	  	[***]	 	[***]	 	[***]	 	[***]
									
	 2016-2017
	  	1Q16*	 	2Q16*	 	3Q16*	 	4Q16*	 	1Q17*	 	2Q17*	 	3Q17*	 	4Q17*
	 Price for Li-Ion Cell [***] (Tesla Part No. [***]) 1
	  	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]
	 Quantity (millions)
	  	[***]	 	[***]	 	[***]	 	[***]

 The pricing set forth above is based on the following [***]. The Parties shall work together on an on-going
basis and in good faith to [***], the Parties shall jointly determine the amount of [***] in good faith [***] following any such meeting, and [***] shall be reflected in [***] pricing under this Attachment 1-A as follows: [***]. 

 

																			
	 2014-2015
	  	4Q13	 	1Q14	 	2Q14	 	3Q14	 	4Q14	 	1Q15	 	2Q15	 	3Q15	 	4Q15
	 [***] cost per cell
	  	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]
	 [***] cost per cell
	  	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]
	 [***] cost per cell
	  	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]
	 [***] cost per cell
	  	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]	 	[***]

  

	1 	The Parties may also agree to modify the types of Items eligible for purchase under this Agreement (e.g. by substituting later versions of earlier cells), and purchases of such Items hereunder shall be deemed to satisfy
any applicable purchase commitments hereunder and the price for such Items shall be negotiated in good faith by the Parties. 

	*	The prices set forth above are [***], and the Parties shall recalculate the [***] in good faith [***]. 

  

					
	Amendment to Tesla-Panasonic Supply Agreement	  	 	Page 4 of 5	  
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	(b)	Price Adjustments. The prices set forth above shall be adjusted [***] for adjustments in prices for the [***] materials set forth below, in accordance with the adjustment mechanism process set forth in Exhibit
1 ([***]). The following assumptions shall apply for purposes of the price adjustment mechanism: 

  

			
	 Baseline Commodity Assumption
	  	 
	 [***] Content (g)
	  	[***]
	 [***] Price (USD/kg)
	  	[***]
	 [***] Content (g)
	  	[***]
	 [***] Price (USD/kg)
	  	[***]
	 [***] Content (g)
	  	[***]
	 [***] Price (USD/kg)
	  	[***]
	 [***] Content (g)
	  	[***]
	 [***] Price (USD/kg)
	  	[***]
	 Exchange rate (Yen/$)
	  	[***]

 For purposes of this adjustment, the [***] materials prices shall be converted from United States Dollars
(USD) into Japanese Yen (JPY) using the [***] and the [***] for the applicable [***] period set forth below: 
  

			
	 [***]
	  	[***]
	 [***]
	  	[***]
	 [***]
	  	[***]
	 [***]
	  	[***]
	 [***]
	  	[***]
	 [***]
	  	

 Attachment 2 to the Agreement is hereby deleted. 

 

	2.	Panasonic’s Investment. 

  

	 	(a)	Panasonic will make certain capital investments to enable production of cells for Tesla under the Agreement at Panasonic’s factories at [***], Japan, consisting of [***] (the cost of the foregoing investments is
the “Investment Cost”). Panasonic will use reasonable efforts to limit the amount of the Investment Cost, and the Investment Cost shall not [***]. 

 

	 	(b)	Tesla commits that Panasonic will recover the Investment Cost from Tesla [***] for at least 1.836 billion Items (cells) [***]; provided, however, that [***]. 

  

					
	Amendment to Tesla-Panasonic Supply Agreement	  	 	Page 5 of 5	  
	[***] Information has been omitted and filed separately with the Securities and Exchange Commission. Confidential Treatment has been requested with respect to the omitted portions.	   

 Confidential Treatment Requested by Tesla Motors, Inc. 

 
 Exhibit 1 

Material Adjustment Calculator 
 [***] 

 

					
		  		  	
			
		  		  	
			
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	
		  		  	

  

			
	[***] Information has been omitted and filed separately with the Securities and Exchange Commission. Confidential Treatment has been requested with respect to the omitted portions.

 Confidential Treatment Requested by Tesla Motors, Inc. 

Tesla-Panasonic Confidential 
  

June 22, 2012 
 Process and Procedures for Damaged
Goods Arriving at Tesla Motors 
 Process incorporates language of Section 7 of Supply Agreement between Tesla Motors and Panasonic Industrial
Company and Panasonic Corporation dated Oct. 5, 2011 (the “Agreement”)1 
  

	1.	Tesla will inspect shipments promptly upon delivery: within [***] of receipt at the DAP Point [***]. Inspection will be to determine if Items conform to mutually agreed upon inspection specifications and to determine if
Items are damaged. Tests will include: 

  

	 	a.	OCV measurements 

  

	 	b.	Impedance measurements 

  

	 	c.	[***] 

  

	2.	Tesla must notify Panasonic of damage or other non-conformity within [***] of delivery to the DAP Point. This notice must be in writing. 

 

	3.	If Panasonic does not receive a notice of damage or non-conformity within [***] after delivery to the DAP Point, the Items will be deemed to be “accepted” for purposes of payment. 

 

	4.	If damage or a non-conformity is found or alleged: 

  

	 	a.	Tesla will send written notice to [***] of Panasonic as soon as possible after discovery of damage or non-conformity. Tesla will supply Panasonic detailed facts and supporting evidence (such as test results) regarding
the damage or non-conformity. 

  

	 	b.	As soon as practical, [***] will travel to Tesla site (Fremont or Palo Alto) to inspect the affected Items and take photos. 

  

	 	c.	On the same day of the inspection, [***] will email photos to the Panasonic factory (represented by [***]) for review. 

  

	 	d.	As soon as practical, [***] will respond to [***] with a determination as to whether the Items: (i) are usable; (ii) should be subject to additional inspection; (iii) should be returned to the Panasonic
factory; or (iv) should be destroyed. 

  

	1 	This document is not intended to, and shall not, modify the Agreement or otherwise waive or modify the parties’ rights and obligations thereunder. 

  

					
	Tesla-Panasonic – Process for Damaged Goods	  	 	Page 1 of 2	  
	[***] Information has been omitted and filed separately with the Securities and Exchange Commission. Confidential Treatment has been requested with respect to the omitted portions.	   

 Confidential Treatment Requested by Tesla Motors, Inc. 

Tesla-Panasonic Confidential 
  

 

	5.	If Items are determined to be usable, the Panasonic factory will send a written report to [***] that can be submitted to Tesla certifying that the Items are okay to use (i.e., they are free from damage and conform to
the agreed specifications). 

  

	6.	If the Panasonic factory determines that the Items must leave the Tesla site for further investigation: 

  

	 	a.	Tesla will arrange for pick-up of the allegedly damaged or non-conforming Items and transport to a mutually agreed upon designated location at Tesla’s expense; and 

 

	 	b.	Once Items are at the designated location, Panasonic or the parties’ selected third party service will promptly begin the additional inspection (including technical evaluation of cells) to determine whether cells
are usable. This additional inspection will be conducted at Tesla’s expense. 

  

	7.	If the cause of the damage or non-conformity is determined to be solely attributable to Panasonic (i.e., cells were damaged or non-conforming upon delivery to Tesla), Panasonic shall: 

 

	 	a.	Replace the affected Items. [***]; 

  

	 	b.	Reimburse Tesla for the reasonable costs of transporting the Items to Panasonic or an alternate designated location for inspection and testing (if transport was conducted at Tesla expense); and 

 

	 	c.	Reimburse Tesla for the reasonable costs of inspection and testing (if they were conducted by a third party at Tesla’s expense). 

 

	8.	If, based on the findings of Panasonic’s investigation, Panasonic determines that the Items must be returned to the Panasonic factory in Japan, Panasonic will arrange for pick up and shipping of the goods to the
factory at Panasonic’s expense. 

  

	 	a.	[***] will work with Panasonic Operations to complete a Return Material Authorization form (RMA). [***] will issue an RMA number to Tesla as soon as practical. 

 

	 	b.	The RMA number must be issued before Tesla transports the Items either to the Panasonic factory, or to an alternate designated location. 

 

	 	c.	The RMA number must be referenced on shipping documentation. 

  

	9.	If Panasonic instructs Tesla in writing to destroy the damaged or non-conforming Items, Panasonic shall reimburse Tesla for the reasonable cost of such destruction. 

  

					
	Tesla-Panasonic – Process for Damaged Goods	  	 	Page 2 of 2	  
	[***] Information has been omitted and filed separately with the Securities and Exchange Commission. Confidential Treatment has been requested with respect to the omitted portions.EX-10.5

 Exhibit 10.5 
 SEPARATION, OPTION EXTENSION AND 
 POST-SEPARATION COVENANT
AGREEMENT 
 THIS AGREEMENT is made this 20th day of December, 2013 (the “Effective Date”), by
and among U.S. Silica Company, a Delaware corporation (the “Company”), U.S. Silica Holdings, Inc., a Delaware corporation (“Holdings”), and Brian Slobodow (“Executive”, and together with the Company
and Holdings, the “Parties”). 
 WITNESSETH: 

WHEREAS, the Company and Executive previously entered into that certain Employment Agreement, dated as of June 1, 2011 (as
amended, the “Employment Agreement”), pursuant to which the Company agreed to employ Executive, and Executive agreed to serve, as Chief Administrative Officer of the Company; 

WHEREAS, Holdings and Executive previously entered into that certain Non-Qualified Stock Option Agreement, dated as of
July 12, 2011 (as amended pursuant to the “Separation Agreement” (as defined below) (as amended, the “Option Agreement”)), pursuant to which Holdings granted Executive a stock option (the “Option”) to
purchase an aggregate of 359,527 shares of common stock of Holdings under the GGC USS Holdings, Inc. 2011 Incentive Compensation Plan (the “Plan”) on the terms and conditions set forth in the Option Agreement; 

WHEREAS, the Company, Holdings and Executive previously entered into that certain Separation and Transition Agreement dated as of
October 1, 2012 (the “Separation Agreement”), pursuant to which Executive has served and continues to serve as a member of the Board of Directors of Holdings (the “Board”). 

WHEREAS, Executive has notified the Company and Holdings, in writing, of his resignation from the Board (the
“Separation”), effective January 2, 2014 (the “Separation Date”); 
 WHEREAS, the
Option Agreement and the Separation Agreement contain certain terms and conditions relating to the vesting and exercise rights with respect to Executive and the Option, which terms and conditions the Parties desire to modify in the manner set forth
herein. 
 NOW, THEREFORE, in consideration of the mutual promises and agreements herein contained, and other good and
valuable consideration the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows: 
  

	1.	Amendment to Option Agreement. In partial consideration for Executive agreeing to be bound by the restrictions set forth in this Agreement during the
“Noncompete Period” (as redefined in Section 2 hereof), the Parties hereby agree to amend the Option Agreement as follows: 

  

	 	(a)	Executive’s continued compliance with the restrictive covenants contained herein during the Noncompete Period shall constitute continued service with the Company
for purposes of the Option Agreement and a Termination shall not be deemed to have occurred for purposes of the Option Agreement until the earlier of the date of expiration of the Noncompete Period and the date on which Executive materially breaches
any of Executive’s obligations hereunder. The Option shall continue to remain outstanding and become vested and exercisable in accordance with the terms and conditions of the Option Agreement during the Noncompete Period until the occurrence of
a “Termination” (as modified herein). All references in the Option Agreement to Executive’s “continued service” or “employment” with the Company shall be deemed to include the Noncompete Period (or such shorter
period ending on the date on which Executive materially breaches Executive’s obligations hereunder). The Parties acknowledge and agree that, as of the Separation Date, the cumulative percentage of the Option that will have vested in the
ordinary course operation of the Option Agreement is 83.33%. 

  

	 	(b)	 Upon the occurrence of a “Termination” (as modified herein), the unvested portion of the Option (if any) shall be immediately forfeited and
cancelled on the date of such “Termination” without any consideration being paid therefor and without any further action of the Company or Holdings whatsoever, and the vested portion of the Option shall

	 	
remain exercisable until the earlier to occur of ninety (90) days following the date of such “Termination” and the expiration of the stated ten (10)-year term of the Option as set
forth in the Option Agreement; provided, however, that in the event that a “Termination” occurs as a result of Executive’s material breach of Executive’s obligations hereunder, the entire Option, whether vested or
unvested, shall be immediately forfeited and cancelled on the date of such “Termination” without any consideration being paid therefor and without any further action of the Company or Holdings whatsoever; and, provided,
further, that any breach by Executive of Executive’s obligations hereunder shall not serve to reduce or otherwise modify the Noncompete Period or any of Executive’s other covenants referenced in this Agreement.

  

	 	(c)	For the avoidance of doubt, the provisions of Section 6.4(c) of the Plan shall continue to apply to the Option, and any material breach of Executive’s
obligations hereunder shall constitute a “Detrimental Activity” thereunder. 

 Except as specifically modified herein,
the Option and the Option Agreement will remain in full force and effect in accordance with all of the terms and conditions thereof. 
  

	2.	Confidential Information; Work Product; Non-Compete; Non-Solicitation. Sections 5, 6, 7, 8 and 9 of the Employment
Agreement are incorporated herein by reference, and will apply to Executive to the maximum extent permitted by applicable law; provided, however, that for purposes of this Agreement the Parties hereby agree that the Noncompete Period (as
defined in the Employment Agreement) will be re-defined to mean the 24-month period beginning on the Separation Date. Executive acknowledges and agrees that his non-competition and non-solicitation covenants in Section 7 of the Employment
Agreement will be and remain enforceable throughout the Noncompete Period (as re-defined herein), even in the event of his material breach of this Agreement and subsequent forfeiture of rights otherwise granted to him hereunder. Executive further
acknowledges and agrees that all other representations, warranties and covenants he has made to Holdings and/or the Company, whether in this Agreement or otherwise, will not be affected by this Agreement and will remain in full force and effect.

  

	3.	Disputes. Any disputes between the Parties arising under this Agreement will be resolved in accordance with the arbitration procedures set forth in
Section 20 of the Employment Agreement. 

  

	4.	Entire Agreement. This Agreement, including all agreements referenced herein (as modified by this Agreement, the “Related Agreements”),
constitutes the entire understanding and agreement between the Parties as to the subject matters hereof, and this Agreement supersedes all other agreements or other arrangements (except the Related Agreements) between the Parties, whether oral or
written, with respect to the subject matters hereof. 

  

	5.	Governing Law; Choice of Forum. This Agreement, and any questions relating or regarding the validity, interpretation, or performance, shall be governed by
and construed in accordance with the laws of the State of Maryland, without reference to the conflicts or choice of law principles thereof. 

 BY SIGNING THIS AGREEMENT, EXECUTIVE HEREBY CERTIFIES THAT EXECUTIVE (A) HAS RECEIVED A COPY OF THIS AGREEMENT FOR REVIEW AND STUDY BEFORE SIGNING IT; (B) HAS READ THIS AGREEMENT CAREFULLY
BEFORE SIGNING IT; (C) HAS HAD SUFFICIENT OPPORTUNITY TO REVIEW THE AGREEMENT WITH ANY ADVISOR WHICH EXECUTIVE MAY DESIRE TO CONSULT, INCLUDING LEGAL COUNSEL; (D) HAS HAD SUFFICIENT OPPORTUNITY BEFORE SIGNING IT TO ASK ANY QUESTIONS
EXECUTIVE HAS ABOUT THIS AGREEMENT AND HAS RECEIVED SATISFACTORY ANSWERS TO ALL SUCH QUESTIONS; AND (E) UNDERSTANDS EXECUTIVE’S RIGHTS AND OBLIGATIONS UNDER THIS AGREEMENT. 

  

					
	EXECUTIVE	  	
		
	 /s/ Brian Slobodow
	  	 Date: 12/20/13

	        Brian Slobodow	  	
		
	U.S. SILICA COMPANY	  	
			
	By:	 	/s/ Bryan A. Shinn	  	 Date: 12/16/13

	Name:	 	Bryan A. Shinn	  	
	Title:	 	President & CEO	  	
		
	U.S. SILICA HOLDINGS, INC.	  	
			
	By:	 	/s/ Bryan A. Shinn	  	 Date: 12/16/13

	Name:	 	Bryan A. Shinn	  	
	Title:	 	President & CEO

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