Document:

Wdesk | Exhibit

Exhibit 10.5

March 25, 2019

ADES International Holding PLC
Unit 517, Floor 5, Index Tower
DIFC, UAE, Dubai - PO Box: 507118
Attention: Dr. Mohamed Farouk
   Morcos William

Reference is made to that certain (i) Sale and Purchase Agreement, dated as of July 11, 2018, by and between Weatherford Worldwide Holdings GmbH, a Swiss company with limited liability (“Seller”), and ADES International Holding PLC (f.k.a. ADES International Holding Ltd.), a Dubai International Financial Centre entity (“Purchaser”), pertaining to the purchase by Purchaser of certain land drilling rig assets and operations of Seller and its Affiliates in the Republic of Algeria and State of Kuwait, as amended by (a) that certain side letter with respect to the Initial Closing of the Kuwait Assets, dated October 31, 2018 (the “Kuwait Side Letter”); (b) that certain side letter with respect to the Subsequent Closing of the Algeria Assets, dated February 27, 2019 (the “Algeria Side Letter”) and (c) that certain side letter with respect to the Delayed Algeria Rigs, dated March 18, 2019 (the “Delayed Algeria Rigs Side Letter”), (as may be further amended, supplemented or modified from time to time, collectively, the “AK Purchase Agreement”), (ii) Sale and Purchase Agreement, dated as of July 11, 2018, by and between Seller and Purchaser pertaining to the purchase by Purchaser of certain land drilling rig assets and operations of Seller and its Affiliates in the Kingdom of Saudi Arabia, as amended by that certain side letter, dated November 30, 2018 (the “KSA Side Letter”), (as may be further amended, supplemented or modified from time to time, the “KSA Purchase Agreement” and collectively with the AK Purchase Agreement, the “Purchase Agreement”) and (iii) Bridging Agreement, by and between Purchaser and Seller, dated as of July 11, 2018.  Capitalized terms used but not defined in this Agreement shall have the meanings set forth in the Purchase Agreement.

In consideration of the mutual agreements, provisions and covenants contained in this letter agreement and the Purchase Agreement, pursuant to Sections 11.2 and 11.3 of the Purchase Agreement, Seller and Purchaser hereby agree as follows:

		
	1.
	Additional Closing Payment; Purchase Orders; Rig Capital Expenditure Program; Working Capital Adjustment; Employee Matters.  

		
	(a)
	On the Iraq Transfer Date for Rig 827, in addition to the Purchase Price for Rig 827, Purchaser shall pay to Seller an amount equal to $308,586.29, representing amounts owed to Seller for packing and transportation costs (but not the port costs) pursuant to the Kuwait Side Letter.  

		
	(b)
	On or before April 15, 2019, Purchaser shall (to the extent the expenses are validated by Purchaser after receipt of accompanying invoices, supporting documents and receipts) pay to Seller an amount equal to $7,424,112.09, representing all support and advance funds provided by Seller to Purchaser in the State of Kuwait and the Kingdom of Saudi Arabia as of the Iraq Transfer Date for Rig 827.  Seller shall provide to Purchaser copies of all invoices, supporting documents and receipts reasonably requested by Purchaser to allow Purchaser to validate that such amounts were incurred by Seller and its Affiliates. For the avoidance of doubt this letter does not prejudice the rights of either Party in relation any disagreement as to whether an amount has been validated.

1

		
	(a)
	The Parties agree that, for purposes of paragraph 4 of the Kuwait Side Letter (and Section 5.2(b) of the AK Purchase Agreement), the payment date for the second installment of $6,000,000 shall be extended to April 15, 2019.

		
	(b)
	The Parties agree that, for purposes of Section 2.5(c) of the AK Purchase Agreement, the 30 day dispute period referred to therein shall be extended 14 days, such that if the Parties do not resolve all items disputed pursuant to Section 2.5(b) of the AK Purchase Agreement by April 11, 2019, then the parties will submit the remaining items in dispute to Deloitte Touche Tohmatsu Limited for resolution, or if that firm is unwilling or unable to serve, the Parties will engage another mutually agreeable independent accounting firm of recognized international standing, which firm is not the regular auditing firm of Purchaser or Seller.

		
	(c)
	The Parties agree that for purposes of the AK Purchase Agreement, Mohcen Belhachani shall not be deemed a Transferring Employee.

		
	2.
	Miscellaneous.  

		
	(a)
	Each of the parties to this letter agreement represents and warrants that (i) such Person has all requisite corporate power and authority to execute, deliver and perform this letter agreement and (ii) the execution, delivery and performance of this letter agreement have been duly authorized by all requisite corporate approvals on the part of such Person.

		
	(b)
	The Parties agree that Purchase Agreement is and shall continue to be in full force and effect in accordance with its terms, and, except as expressly set forth in this letter agreement, no other modification to the Purchase Agreement is agreed to or implied.  Without limiting the generality of the foregoing, and for the avoidance of doubt, nothing in this letter agreement is intended to constitute a waiver of any right or otherwise modify the obligations of the Parties under the Purchase Agreement, including without limitation, with respect to any claim that Seller might have under Article 9 of the Purchase Agreement, or with respect the rights and obligations of the Parties in respect of the Iraq Rigs under the Kuwait Side Letter.  This letter agreement and the schedules and exhibits hereto, together with the Purchase Agreement and the other Transaction Documents, constitute the entire agreement among the parties hereto and their respective Affiliates with respect to the subject matter hereof and thereof.  The Parties further agree that Section 11.5, Section 11.6 and Sections 11.8 through 11.16 of the Purchase Agreement are incorporated herein by reference as if set forth in full herein and shall apply to the terms and provisions of this letter agreement and the Parties hereto mutatis mutandis.  For the avoidance of doubt, this letter agreement shall be deemed a “Transaction Document” for purposes of the Purchase Agreement.

		
	3.
	Seller Parent Guarantee.  The Seller Parent has executed this letter agreement where provided for below to confirm that the guarantee it has given under Section 11.17 of the AK Purchase Agreement remains in full force and effect in accordance with its terms.

If the foregoing correctly sets forth your understanding of the subject matter hereof, please so indicate by executing this letter agreement in the space provided below.

(Signature page to follow)

2

	
			
	Sincerely yours,
	 

	 
	 
	 

	WEATHERFORD WORLDWIDE HOLDINGS GMBH

	 
	 
	 

	 
	 
	 

	By:
	/s/ Josh McMorrow
	 

	Name:
	Josh McMorrow
	 

	Title:
	Managing Officer
	 

	 
	 
	 

	 
	 
	 

Signature page to Letter Agreement (Iraq Rig 827)

	
			
	Solely for purposes of paragraph 3 of this letter agreement:

	 
	 
	 

	WEATHERFORD INTERNATIONAL PLC

	 
	 
	 

	 
	 
	 

	By:
	/s/ Josh McMorrow
	 

	Name:
	Josh McMorrow
	 

	Title:
	Vice President
	 

	 
	 
	 

	 
	 
	 

Signature page to Letter Agreement (Iraq Rig 827)

	
			
	Accepted and agreed on March 25, 2019:
	 

	 
	 
	 

	ADES INTERNATIONAL HOLDING PLC

	 
	 
	 

	 
	 
	 

	By:
	/s/ Dr. Mohamed Farouk
	 

	Name:
	Dr. Mohamed Farouk

	 

	Title:
	Director
	 

	 
	 
	 

	 
	 
	 

        

Signature page to Letter Agreement (Iraq Rig 827)EX-10.1

 Exhibit 10.1 

VOTING AND SUPPORT AGREEMENT 

THIS VOTING AND SUPPORT AGREEMENT (this
“Agreement”) is entered into as of May 6, 2019, by and between MARVELL TECHNOLOGY GROUP LTD., a Bermuda exempted company (“Parent”), and
[            ] (“Stockholder”). 

RECITALS 

A.    Stockholder is a holder of record and the “beneficial owner” (within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934, as amended) of certain shares of common stock of Aquantia Corp., a Delaware corporation (the “Company”). 

B.    Parent, Antigua Acquisition Corp., a Delaware corporation (“Merger Sub”), and the Company
are entering into an Agreement and Plan of Merger, dated as of the date hereof (the “Merger Agreement”), which provides (subject to the terms and conditions set forth therein) for the merger of Merger Sub with and into the Company
(the “Merger”). 
 C.    In the Merger, each outstanding share of common stock of the Company is
to be converted into the right to receive the cash consideration set forth in the Merger Agreement. 

D.    Stockholder is entering into this Agreement in order to induce Parent to enter into the Merger Agreement and
cause the Merger to be consummated. 
 AGREEMENT 

The parties to this Agreement, intending to be legally bound, agree as follows: 

SECTION 1. CERTAIN DEFINITIONS 
 For
purposes of this Agreement: 
 (a)    The terms “Acquired Companies,” “Acquisition
Inquiry,” “Acquisition Proposal,” “Company Common Stock,” “Person” and other capitalized terms used but not otherwise defined in this Agreement have the meanings assigned to
such terms in the Merger Agreement. 
 (b)    [“Expiration Date” means the
earliest of: (i) the date on which the Merger Agreement is validly terminated in accordance with its terms; (ii) the date on which the Merger becomes effective; and (iii) the date upon which Parent and Stockholder mutually agree to
terminate this Agreement in writing.] 
 (c)    Stockholder shall be deemed to “Own” or to have
acquired “Ownership” of a security if Stockholder: (i) is the record owner of such security; or (ii) is the “beneficial owner” (within the meaning of Rule 13d-3 under the
Exchange Act) of such security. 
 (d)    “Subject Securities” means: (i) all securities of
the Company (including all shares of Company Common Stock and all options, restricted stock units, warrants and other rights to acquire shares of Company Common Stock) Owned by Stockholder as of the date of this Agreement; and (ii) all
additional securities of the Company (including all additional shares of Company Common Stock and all additional options, restricted stock units, warrants and other rights to acquire shares of Company Common Stock) of which Stockholder acquires
Ownership during the Voting Period. 

 (e)    A Person shall be deemed to have effected a
“Transfer” of a security if such Person directly or indirectly: (i) sells, pledges, encumbers, grants an option with respect to, transfers or disposes of such security or any interest in such security to any Person other than
Parent; (ii) enters into an agreement or commitment contemplating the possible sale of, pledge of, encumbrance of, grant of an option with respect to, transfer of or disposition of such security or any interest therein to any Person other than
Parent; or (iii) reduces such Person’s beneficial ownership of or interest in such security. 

(f)    “Voting Period” means the period commencing on (and including) the date of this
Agreement and ending on (and including) the Expiration Date. 
 SECTION 2. TRANSFER OF SUBJECT SECURITIES AND VOTING RIGHTS 

2.1    Restriction on Transfer of Subject Securities. Subject to
Section 2.3, during the Voting Period, Stockholder shall not cause or permit any Transfer of any of the Subject Securities to be effected (other than in the Merger). Without limiting the generality of the foregoing, during
the Voting Period, Stockholder shall not tender, agree to tender or permit to be tendered any of the Subject Securities in response to or otherwise in connection with any tender or exchange offer. 

2.2    Restriction on Transfer of Voting Rights. During the Voting Period, Stockholder shall ensure that:
(a) none of the Subject Securities is deposited into a voting trust; and (b) no proxy is granted (except for the proxy granted in connection with this Agreement), and no voting agreement or similar agreement is entered into (except for the
voting covenants contained in this Agreement), with respect to any of the Subject Securities. 

2.3    Permitted Transfers. Section 2.1 shall not prohibit a transfer of
Subject Securities by Stockholder: (a) if Stockholder is an individual, (i) to any member of Stockholder’s immediate family, or to a trust for the benefit of Stockholder or any member of Stockholder’s immediate family or
(ii) upon the death of Stockholder; or (b) if Stockholder is a partnership or limited liability company, to one or more partners or members of Stockholder or to an affiliated corporation under common control with Stockholder;
provided, however, that a transfer referred to in this sentence shall be permitted only if, as a precondition to such transfer, the transferee agrees in a written document, reasonably satisfactory in form and substance to Parent, to be
bound by all of the terms of this Agreement. 
 SECTION 3. VOTING OF SHARES 

3.1    Voting Covenant. Stockholder hereby agrees that, during the Voting Period, at any meeting of
the stockholders of the Company (however called), and at every adjournment or postponement thereof, and in any action by written consent of stockholders of the Company, unless otherwise directed in writing by Parent, Stockholder shall cause the
Subject Securities with respect to which Stockholder has voting rights to be voted: 
 (a)    in favor of:
(i) the Merger and the adoption of the Merger Agreement; (ii) each of the other actions contemplated by the Merger Agreement; and (iii) any action in furtherance of any of the foregoing; 

(b)    against any action or agreement that would result in a breach of any representation, warranty, covenant or
obligation of the Company in the Merger Agreement; and 

  
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 (c)    against each of the following actions (other than the
Merger and the other Contemplated Transactions): (i) any extraordinary corporate transaction, such as a merger, consolidation, amalgamation, plan or scheme of arrangement, share exchange or other business combination involving any Acquired Company;
(ii) any sale, lease, sublease, license, sublicense or transfer of a material portion of the assets of any Acquired Company; (iii) any reorganization, recapitalization, dissolution or liquidation of any Acquired Company; (iv) any
amendment to the Company’s certificate of incorporation or bylaws, which amendment may have the effect of (A) frustrating the purpose of, or breaching or nullifying any provision of, the Merger Agreement, (B) impeding, interfering
with, preventing, delaying or adversely affecting the Merger or (C) changing the voting rights of any shares of capital stock of the Company; (v) any material change in the capitalization of the Company or the Company’s corporate
structure; and (vi) any other action which is intended, or would reasonably be expected, to impede, interfere with, delay, postpone, discourage or adversely affect the Merger or any of the other Contemplated Transactions. 

3.2    Other Voting Agreements. During the Voting Period, Stockholder shall not enter into any agreement or
understanding with any Person to vote or give any instruction in any manner inconsistent with clause “(a),” clause “(b)” or clause “(c)” of Section 3.1. Except as set forth in or contemplated
by this Agreement, Stockholder may vote his or her Subject Securities in his or her discretion on all matters submitted for the vote of the Company’s stockholders or in connection with any meeting or written consent of the Company’s
stockholders. 
 3.3    Proxy. 

(a)    Contemporaneously with the execution of this Agreement: (i) Stockholder shall deliver to Parent a proxy
in the form attached to this Agreement as Exhibit A, which shall (at all times during the Voting Period) be irrevocable to the fullest extent permitted by law with respect to the shares referred to therein (the “Proxy”); and
(ii) Stockholder shall cause to be delivered to Parent an additional proxy (in the form attached hereto as Exhibit A) executed on behalf of the record owner of any outstanding shares of Company Common Stock that are owned beneficially
(within the meaning of Rule 13d-3 under the Exchange Act), but not of record, by Stockholder. 

(b)    Stockholder shall not enter into any tender, voting or other similar agreement, or grant a proxy or power of
attorney, with respect to any of the Subject Securities that is inconsistent with this Agreement or otherwise take any other action with respect to any of the Subject Securities that would in any way restrict, limit or interfere with the performance
of any of Stockholder’s obligations hereunder or any of the actions contemplated hereby. 
 SECTION 4. WAIVER OF APPRAISAL AND DISSENTERS’
RIGHTS 
 Stockholder hereby irrevocably and unconditionally waives, and agrees to cause to be waived and to prevent the exercise of, any
rights of appraisal, any dissenters’ rights and any similar rights relating to the Merger or any related transaction that Stockholder or any other Person may have by virtue of, or with respect to, any shares of Company Common Stock Owned by
Stockholder (including any and all such rights under Section 262 of the DGCL). 
 SECTION 5. REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER 

Stockholder hereby represents and warrants to Parent as follows: 

5.1    Authorization, etc. Stockholder has the absolute and unrestricted right, power, authority and
capacity to execute and deliver this Agreement and the Proxy and to perform Stockholder’s obligations hereunder and thereunder. This Agreement and the Proxy have been duly executed and delivered by Stockholder and constitute legal, valid and
binding obligations of Stockholder, enforceable against 

  
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Stockholder in accordance with their terms, subject to: (a) laws of general application relating to bankruptcy, insolvency and the relief of debtors; and (b) rules of law governing
specific performance, injunctive relief and other equitable remedies. If Stockholder is a corporation, then Stockholder is a corporation duly organized, validly existing and in good standing under the laws of the jurisdiction in which it was
organized. If Stockholder is a general or limited partnership, then Stockholder is a partnership duly organized, validly existing and in good standing under the laws of the jurisdiction in which it was organized. If Stockholder is a limited
liability company, then Stockholder is a limited liability company duly organized, validly existing and in good standing under the laws of the jurisdiction in which it was organized. Stockholder and its Representatives have reviewed and understand
the terms of this Agreement, and Stockholder has consulted and relied upon Stockholder’s counsel in connection with this Agreement. 

5.2    No Conflicts or Consents. 

(a)    The execution and delivery of this Agreement and the Proxy by Stockholder do not, and the performance of this
Agreement and the Proxy by Stockholder will not: (i) if Stockholder is an Entity, conflict with or violate any of the charter or organizational documents of Stockholder or any resolution adopted by the equity holders, the board of directors (or
other similar body) or any committee of the board of directors (or other similar body) of Stockholder; (ii) conflict with or violate any Legal Requirement or Order applicable to Stockholder or by which Stockholder or any of Stockholder’s
properties is or may be bound or affected in any material respect; or (iii) result in or constitute (with or without notice or lapse of time or both) any breach of or default under, or give to any Person (with or without notice or lapse of time
or both) any right of termination, amendment, acceleration or cancellation of, or result (with or without notice or lapse of time or both) in the creation of any Encumbrance on any of the Subject Securities pursuant to, any Contract to which
Stockholder is a party or by which Stockholder or any of Stockholder’s affiliates or properties is or may be bound or affected. 

(b)    The execution and delivery of this Agreement and the Proxy by Stockholder do not, and the performance of
this Agreement and the Proxy by Stockholder will not, require any Consent of any Person. The execution and delivery of any additional proxy pursuant to Section 3.3(a)(ii) with respect to any shares of Company Common
Stock that are owned beneficially but not of record by Stockholder do not, and the performance of any such additional proxy will not, require any Consent of any Person. Stockholder is not, nor will Stockholder be, required to give any notice to any
person in connection with the execution, delivery or performance of this Agreement or the Proxy. 

5.3    Title to Securities. As of the date of this Agreement: (a) Stockholder holds of record (free and
clear of any Encumbrance) the number of outstanding shares of Company Common Stock set forth under the heading “Shares Held of Record” on the signature page of this Agreement; (b) Stockholder holds (free and clear of any Encumbrance)
the options, restricted stock units, warrants and other rights to acquire shares of Company Common Stock set forth under the heading “Options, RSUs, Warrants and Other Rights” on the signature page of this Agreement; (c) Stockholder
Owns the additional securities of the Company set forth under the heading “Additional Securities Beneficially Owned” on the signature page of this Agreement; and (d) Stockholder does not directly or indirectly Own any shares of
capital stock or other securities of the Company, or any option, restricted stock unit, warrant or other right to acquire (by purchase, conversion or otherwise) any shares of capital stock or other securities of the Company, other than the shares,
options, restricted stock units, warrants and other rights set forth on the signature page of this Agreement. 

5.4    Accuracy of Representations. The representations and warranties contained in this Section 5 are
accurate and complete in all respects as of the date of this Agreement, and will be accurate and complete in all respects as of the date of the Company Stockholders’ Meeting (and the date of each adjournment or postponement thereof, if any) as
if made as of the date of the Company Stockholders’ Meeting (and as of the date of each such adjournment or postponement thereof, if any). 

  
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 SECTION 6. MISCELLANEOUS 

6.1    Stockholder Information. Stockholder hereby agrees to permit Parent, Merger Sub and the Company to
(a) publish and disclose in the Proxy Statement, any current report on Form 8-K or any other document or schedule required to be filed with the SEC or any other regulatory authority in connection with the
Merger (collectively, the “Public Filings”), Stockholder’s identity and ownership of shares of Company Common Stock and the nature of Stockholder’s commitments, arrangements and understandings under this Agreement and
(b) file this Agreement as an exhibit to any Public Filing. 
 6.2    No Solicit. [Subject to
Section 6.3, and subject to Stockholder’s right to take any action in his capacity as a director or officer of the Company that may be necessary to further the exercise by the Company of its rights under the Merger
Agreement,] Stockholder agrees that, during the Voting Period, Stockholder shall not directly or indirectly, and shall ensure that each of Stockholder’s Representatives does not, directly or indirectly: (a) solicit, initiate, knowingly
encourage, assist, knowingly induce or facilitate the making, submission or announcement of any Acquisition Proposal or Acquisition Inquiry or take any action that would reasonably be expected to lead to an Acquisition Proposal or Acquisition
Inquiry; (b) furnish or otherwise provide access to any information regarding any of the Acquired Companies to any Person in response to an Acquisition Proposal or Acquisition Inquiry; (c) engage in discussions or negotiations with any
Person with respect to any Acquisition Proposal or Acquisition Inquiry; (d) make any disclosure or communication to any Person (other than Stockholder or any Representative of Stockholder) of any
non-public information regarding the Merger, any of the other Contemplated Transactions, this Agreement, the Merger Agreement or any Acquisition Proposal or Acquisition Inquiry (without Parent’s prior
written approval) unless (i) Stockholder shall have been advised by Stockholder’s outside legal counsel that such disclosure or communication is required by applicable law or exchange rule and (ii) prior to making such disclosure or
communication, Stockholder shall have provided Parent with reasonable (and in no event less than 48 hours’) advance written notice of Stockholder’s intent to make such disclosure or communication, the content of such disclosure or
communication and the identities of the Persons to which such disclosure or communication is intended to be made; (e) approve, endorse or recommend any Acquisition Proposal; (f) take any action that could result in the revocation or
invalidation of the Proxy or that would reasonably be expected to suggest that Stockholder no longer supports the Merger; or (g) agree or publicly propose to take any of the actions referred to in this Section 6.2 or
otherwise prohibited by this Agreement. 
 6.3    [Fiduciary Duties. Stockholder is entering into this
Agreement solely in Stockholder’s capacity as an Owner of Subject Securities, and Stockholder shall not be deemed to be making any agreement in this Agreement in Stockholder’s capacity as a director or officer of the Company, or that would
limit Stockholder’s ability to take or fulfill, or refrain from taking or fulfilling, actions or fiduciary duties as, a director or officer of the Company. Nothing in this Agreement shall preclude Stockholder from making such filings as are
required by the SEC or any other regulatory authority in connection with the entering into of this Agreement.] 

6.4    Termination. This Agreement shall terminate on the Expiration Date; provided, however, that
(a) the provisions of this Section 6 (other than Sections 6.1, 6.2 and 6.3) shall survive any termination of this Agreement and (b) the termination of this Agreement shall not relieve
Stockholder from any liability arising from any intentional breach of any representation, warranty, covenant or other provision of this Agreement prior to such termination. 

  
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 6.5    Further Assurances. From time to time and without
additional consideration, Stockholder shall execute and deliver, or cause to be executed and delivered, such additional certificates, proxies, consents and other instruments, and shall take such further actions, as Parent may reasonably request
(prior to, at or after the Closing) for the purpose of carrying out and furthering the intent of this Agreement. 

6.6    Expenses. All costs and expenses incurred in connection with the transactions contemplated by this
Agreement shall be paid by the party incurring such costs and expenses. 
 6.7    Notices. Each notice,
request, demand or other communication under this Agreement shall be in writing and shall be deemed to have been duly given, delivered or made as follows: (a) if delivered by hand or sent by registered or certified mail in the United States,
return receipt requested, when delivered; (b) if sent by registered, certified or first class mail, the third Business Day after being sent; (c) if sent via an international courier service, three Business Days after being delivered to
such courier; and (d) if sent by email, when sent, provided that (i) the subject line of such email states that it is a notice delivered pursuant to this Agreement and (ii) the sender of such email does not receive a written
notification of delivery failure. All notices and other communications hereunder shall be delivered to the address or email address set forth beneath the name of such party below (or to such other address or email address as such party shall have
specified in a written notice given to the other party hereto): 
 if to Stockholder: 

at the address set forth on the signature page of this Agreement; and 

if to Parent: 
 Marvell
Technology Group Ltd. 
 Canon’s Court 

22 Victoria Street 
 Hamilton HM
12 Bermuda 

	 	Attention:	 General Manager 

	 	Facsimile:	 (441) 295-3328 

with a copy (which shall not constitute notice) to: 

Hogan Lovells US LLP 
 4085
Campbell Avenue, Suite 100 
 Menlo Park, California 94025, USA 

	 	Attention:	 Richard E. Climan 

	 	    	 Christopher R. Moore 

	 	Facsimile:	 (650) 463-4199 

	 	Email:	 richard.climan@hoganlovells.com 

	 	    	 christopher.moore@hoganlovells.com 

6.8    Severability. Any term or provision of this Agreement that is invalid or unenforceable in any
situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions of this Agreement or the validity or enforceability of the offending term or provision in any other situation or in any other
jurisdiction. If the final judgment of a court of competent jurisdiction declares that any term or provision of this Agreement is invalid or unenforceable, the parties hereto agree that the court 

  
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making such determination shall have the power to limit the term or provision, to delete specific words or phrases or to replace any invalid or unenforceable term or provision with a term or
provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this Agreement shall be enforceable as so modified. In the event such court does not exercise the power
granted to it in the prior sentence, the parties hereto agree to replace such invalid or unenforceable term or provision with a valid and enforceable term or provision that will achieve, to the extent possible, the economic, business and other
purposes of such invalid or unenforceable term or provision. 
 6.9    Entire Agreement. This Agreement
and the Proxy and any other documents delivered by the parties hereto in connection herewith and therewith constitute the entire agreement between the parties hereto with respect to the subject matter hereof and thereof and supersede all prior
agreements and understandings, both written and oral, between the parties with respect thereto. 

6.10    Amendments. This Agreement may not be amended, modified, altered or supplemented other than by means
of a written instrument duly executed and delivered on behalf of Parent and Stockholder. 

6.11    Assignment; Binding Effect; No Third Party Rights. Except as provided herein, neither this Agreement
nor any of the interests or obligations hereunder may be assigned or delegated by Stockholder without the prior written consent of Parent, and any attempted or purported assignment or delegation of any of such interests or obligations shall be null
and void. Subject to the preceding sentence, this Agreement shall be binding upon Stockholder and Stockholder’s heirs, estate, executors and personal representatives and Stockholder’s successors and assigns, and shall inure to the benefit
of Parent and its successors and assigns. Without limiting any of the restrictions set forth in Section 2, Section 3 or elsewhere in this Agreement, this Agreement shall be binding upon any Person
to whom any Subject Securities are transferred. Nothing in this Agreement is intended to confer on any Person (other than Parent and its successors and assigns) any rights or remedies of any nature. 

6.12    Specific Performance. The parties hereto acknowledge and agree that irreparable damage would
occur in the event that any of the provisions of this Agreement or the Proxy required to be performed by either of the parties hereto were not performed in accordance with its specific terms or were otherwise breached, and that monetary damages,
even if available, would not be an adequate remedy therefor. Stockholder agrees that, in the event of any breach or threatened breach by Stockholder of any covenant or obligation contained in this Agreement or in the Proxy, Parent shall be entitled,
without any proof of actual damages (and in addition to any other remedy that may be available to it at law or in equity, including monetary damages) to obtain: (a) a decree or order of specific performance to enforce the observance and
performance of such covenant or obligation; and (b) an injunction restraining such breach or threatened breach. Stockholder further agrees that neither Parent nor any other Person shall be required to obtain, furnish or post any bond or similar
instrument in connection with or as a condition to obtaining any remedy referred to in this Section 6.12, and Stockholder irrevocably waives any right Stockholder may have to require the obtaining, furnishing or posting of
any such bond or similar instrument. 
 6.13    Applicable Law; Jurisdiction; Waiver of Jury Trial. 

(a)    This Agreement, and any action, suit or other legal proceeding arising out of or relating to this Agreement
(including the enforcement of any provision of this Agreement) (whether at law or in equity, whether in contract or in tort or otherwise), shall be governed by, and construed and interpreted in accordance with, the laws of the State of Delaware,
regardless of the choice of laws principles of the State of Delaware, as to all matters, including matters of validity, construction, effect, enforceability, performance and remedies. In any action between any of the parties hereto arising out of or
relating to this 

  
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Agreement (whether at law or in equity, whether in contract or in tort or otherwise), each of the parties hereto: (i) irrevocably and unconditionally consents and submits to the exclusive
jurisdiction and venue of the Court of Chancery of the State of Delaware in and for New Castle County, Delaware (unless the federal courts have exclusive jurisdiction over the matter, in which case the United States District Court for the District
of Delaware); (ii) agrees that it will not attempt to deny or defeat such jurisdiction by motion or other request for leave from such court; and (iii) agrees that it will not bring any such action in any court other than the Court of Chancery
of the State of Delaware in and for New Castle County, Delaware (unless the federal courts have exclusive jurisdiction over the matter, in which case the United States District Court for the District of Delaware). Service of any process, summons,
notice or document to any party’s address and in the manner set forth in Section 6.7 shall be effective service of process for any such action. 

(b)    EACH PARTY ACKNOWLEDGES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO INVOLVE
COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE IT HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY ACTION ARISING OUT OF OR RELATING TO THIS AGREEMENT. EACH PARTY ACKNOWLEDGES, AGREES AND CERTIFIES THAT:
(i) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD, IN THE EVENT OF LITIGATION, SEEK TO PREVENT OR DELAY ENFORCEMENT OF SUCH WAIVER; (ii) IT UNDERSTANDS AND HAS
CONSIDERED THE IMPLICATIONS OF SUCH WAIVER; (iii) IT MAKES SUCH WAIVER VOLUNTARILY; AND (iv) IT HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS
SECTION 6.13. 
 6.14    Counterparts; Exchanges by Electronic Delivery.
This Agreement may be executed in several counterparts, each of which shall be deemed an original and all of which, when taken together, shall constitute one and the same instrument. The exchange of a fully executed Agreement (in counterparts or
otherwise) by electronic transmission in .PDF format shall be sufficient to bind the parties hereto to the terms of this Agreement. 

6.15    Captions. The captions contained in this Agreement are for convenience of reference only, shall not
be deemed to be a part of this Agreement and shall not be referred to in connection with the construction or interpretation of this Agreement. 

6.16    Waiver. No failure on the part of Parent to exercise any power, right, privilege or remedy under
this Agreement, and no delay on the part of Parent in exercising any power, right, privilege or remedy under this Agreement, shall operate as a waiver of such power, right, privilege or remedy; and no single or partial exercise of any such power,
right, privilege or remedy shall preclude any other or further exercise thereof or of any other power, right, privilege or remedy. Parent shall not be deemed to have waived any claim available to Parent arising out of this Agreement, or any power,
right, privilege or remedy of Parent under this Agreement, unless the waiver of such claim, power, right, privilege or remedy is expressly set forth in a written instrument duly executed and delivered on behalf of Parent; and any such waiver shall
not be applicable or have any effect except in the specific instance in which it is given. 

6.17    Independence of Obligations. The covenants and obligations of Stockholder set forth in
this Agreement shall be construed as independent of any other Contract between Stockholder, on the one hand, and the Company or Parent, on the other. The existence of any claim or cause of action by Stockholder against the Company or Parent shall
not constitute a defense to the enforcement of any of such covenants or obligations against Stockholder. Nothing in this Agreement shall limit any of the rights or remedies of Parent under the Merger Agreement, or any of the rights or remedies of
Parent or any of the obligations of 

  
 8 

 
Stockholder under any agreement between Stockholder and Parent or any certificate or instrument executed by Stockholder in favor of Parent; and nothing in the Merger Agreement or in any other
such agreement, certificate or instrument, shall limit any of the rights or remedies of Parent or any of the obligations of Stockholder under this Agreement. 

6.18    Construction. 

(a)    For purposes of this Agreement, whenever the context requires: the singular number shall include the plural,
and vice versa; the masculine gender shall include the feminine and neuter genders; the feminine gender shall include the masculine and neuter genders; and the neuter gender shall include the masculine and feminine genders. 

(b)    The parties hereto agree that any rule of construction to the effect that ambiguities are to be resolved
against the drafting party shall not be applied in the construction or interpretation of this Agreement. 

(c)    As used in this Agreement, the words “include,” “including” and variations thereof,
shall not be deemed to be terms of limitation, but rather shall be deemed to be followed by the words “without limitation.” 

(d)    Except as otherwise indicated or if the context otherwise requires: (i) all references in this
Agreement to “Sections” and “Exhibits” are intended to refer to Sections of this Agreement and Exhibits to this Agreement; (ii) the words “herein,” “hereof” and “hereunder,” and words of similar
import, shall be construed to refer to this Agreement in its entirety and not to any particular provision of this Agreement; (iii) any definition of or reference to any agreement, instrument or other document or any Legal Requirement in this
Agreement shall be construed as referring to such agreement, instrument or other document or Legal Requirement as from time to time amended, supplemented or otherwise modified; and (iv) any statute defined or referred to in this Agreement shall
include all rules and regulations promulgated thereunder. 

  
 9 

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

			
	 MARVELL TECHNOLOGY GROUP
LTD.

		
	 By:
	 	
                 

	 Name
	 	  

	 Title
	 	  

 
			
	
	 STOCKHOLDER

	
	  

	 Signature

	
	  

	 Printed Name

		
	 Address:
	 	
         

		
		 	  

		
		 	  

		
	 Facsimile:
	 	  

  

					
	 Shares Held of Record
	 	 Options, RSUs, Warrants

        and Other
Rights        
	 	 Additional Securities

  Beneficially Owned  

 EXHIBIT A 

FORM OF IRREVOCABLE PROXY 

 IRREVOCABLE PROXY 

The undersigned stockholder (the “Stockholder”) of Aquantia Corp., a Delaware corporation (the
“Company”), hereby irrevocably (to the fullest extent permitted by law) appoints and constitutes Antigua Acquisition Corp., a Delaware corporation and Marvell Technology Group Ltd., a Bermuda exempted company
(“Parent”), and each of them, the attorneys and proxies of the Stockholder, with full power of substitution and resubstitution, to the full extent of the Stockholder’s rights with respect to: (a) the outstanding shares of
capital stock of the Company owned of record by the Stockholder as of the date of this proxy, which shares are specified on the final page of this proxy; and (b) any and all other shares of capital stock of the Company which the Stockholder may
acquire on or after the date hereof. (The shares of the capital stock of the Company referred to in clauses “(a)” and “(b)” of the immediately preceding sentence are collectively referred to as the “Shares.”)
Upon the execution of this proxy, all prior proxies given by the Stockholder with respect to any of the Shares are hereby revoked, and the Stockholder agrees that no subsequent proxies will be given with respect to any of the Shares. 

This proxy is irrevocable, is coupled with an interest and is granted in connection with, and as security for, the Voting and Support
Agreement, dated as of the date hereof, between Parent and the Stockholder (the “Support Agreement”), and is granted in consideration of Parent entering into the Agreement and Plan of Merger, dated as of the date hereof, among
Parent, Antigua Acquisition Corp., a wholly owned subsidiary of Parent, and the Company (the “Merger Agreement”). This proxy will terminate and be of no further force or effect on the Expiration Date (as defined in the Support
Agreement). 
 The attorneys and proxies named above will be empowered, and may exercise this proxy, to vote the Shares at any time until
the Expiration Date at any meeting of the stockholders of the Company (however called) and at every adjournment or postponement thereof, and in connection with any action by written consent of stockholders of the Company: 

(a)    in favor of: (i) the merger contemplated by the Merger Agreement (the
“Merger”), the execution and delivery by the Company of the Merger Agreement and the adoption of the Merger Agreement; (ii) each of the other actions contemplated by the Merger Agreement; and (iii) any action in
furtherance of any of the foregoing; 
 (b)    against any action or agreement that would result in a
breach of any representation, warranty, covenant or obligation of the Company in the Merger Agreement; and 

(c)    against each of the following actions (other than the Merger and the other Contemplated Transactions
(as defined in the Merger Agreement)): (i) any extraordinary corporate transaction, such as a merger, consolidation, amalgamation, plan or scheme of arrangement, share exchange or other business combination involving any Acquired Company (as defined
in the Merger Agreement); (ii) any sale, lease, sublease, license, sublicense or transfer of a material portion of the assets of any Acquired Company; (iii) any reorganization, recapitalization, dissolution or liquidation of any Acquired
Company; (iv) any amendment to the Company’s certificate of incorporation or bylaws, which amendment may have the effect of (A) frustrating the purpose of, or breaching or nullifying any provision of, the Merger Agreement,
(B) impeding, interfering with, preventing, delaying or adversely affecting the Merger or (C) changing the voting rights of any shares of capital stock of the Company; (v) any material change in the capitalization of the Company or
the Company’s corporate structure; and (vi) any other action which is intended, or would reasonably be expected to impede, interfere with, delay, postpone, discourage or adversely affect the Merger or any of the other Contemplated
Transactions. 

 The attorneys and proxies named above may not exercise this proxy on any matter not referred
to in this proxy. The Stockholder may vote the Shares on all other matters not referred to in this proxy, and the attorneys and proxies named above may not exercise this proxy with respect to such other matters. 

This proxy shall be binding upon the heirs, estate, executors, personal representatives, successors and assigns of the Stockholder (including
any transferee of any of the Shares). 
 Any term or provision of this proxy that is invalid or unenforceable in any situation in any
jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions hereof or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If the final judgment
of a court of competent jurisdiction declares that any term or provision hereof is invalid or unenforceable, the Stockholder agrees that the court making such determination shall have the power to limit such term or provision, to delete specific
words or phrases, or to replace any invalid or unenforceable term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this
proxy shall be enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the parties hereto agree to replace such invalid or unenforceable term or provision with a valid and enforceable term
or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term or provision. 

Dated: May 6, 2019 
  

			
	STOCKHOLDER
		
	By:	 	
                 

		 	Signature

  

	
	  

	Printed Name
	
	  

	Title
	
	Number of shares of common stock of the Company owned of record as of the date of this proxy:

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