Document:

Exhibit 4.2

 

	NUMBER	SHARES

 

NATIONAL ENERGY SERVICES REUNITED CORP.

 

INCORPORATED UNDER THE LAWS OF THE BRITISH
VIRGIN ISLANDS

 

ORDINARY SHARES

 

SEE REVERSE FOR

CERTAIN DEFINITIONS

 

	
        This Certifies that

         

        is the owner of
	CUSIP G6375R 107

 

FULLY PAID AND NON-ASSESSABLE ORDINARY SHARES
OF NO PAR VALUE OF

 

NATIONAL ENERGY SERVICES REUNITED CORP.

 

transferable on the
books of the Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed.

 

The Company will be
forced to liquidate if it is unable to complete an initial business combination within twenty-four months from the closing of the
Company’s initial public offering, all as more fully described in the Company’s final prospectus dated ________, 2017.

 

This certificate is
not valid unless countersigned by the Transfer Agent and registered by the Registrar.

 

Witness the facsimile
seal of the Company and the facsimile signatures of its duly authorized officers.

 

	Dated:	 	 
	 	 	 
	 	 	 
	CHAIRMAN	 	CHIEF EXECUTIVE OFFICER

 

The following abbreviations, when used in
the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable
laws or regulations:

 

	TEN COM –	as tenants in common	UNIF GIFT MIN ACT -	_____ Custodian ______
	TEN ENT –	as tenants by the entireties	 	(Cust)            (Minor)
	JT TEN –	
        as joint tenants with right of survivorship

        and not as tenants in common
	 	
        under Uniform Gifts to Minors and not as tenants in common

        Act ______________________

        (State)

 

Additional Abbreviations may also be used
though not in the above list.

 

     

     

    

  

National Energy Services Reunited Corp.

 

The Company will furnish without charge
to each shareholder who so requests the powers, designations, preferences and relative, participating, optional or other special
rights of each class of shares or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences
and/or rights. This certificate and the shares represented thereby are issued and shall be held subject to all the provisions of
the Memorandum and Articles of Association of the Company and all amendments thereto and resolutions of the Board of Directors
providing for the issue of Preferred Shares (copies of which may be obtained from the secretary of the Company), to all of which
the holder of this certificate by acceptance hereof assents.

 

For value received, ___________________________
hereby sell, assign and transfer unto

 

	PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF

ASSIGNEE	 	 
	 	 	 
	 	 	 
	 	 	 

 

	 
	(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
	 

 

		shares

		Units

of the capital stock represented by the within Certificate,
and do hereby irrevocably constitute and appoint

		Attorney

to transfer the said stock on the books of the within named
Company will full power of substitution in the premises.

 

	Dated:	 	 	 	
	 	 	 	Notice:	The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever
	 	 	 	 	 	 

	Signature(s) Guaranteed:	 
	 	 

 

THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR
INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE
MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

 

The holder of this certificate shall be entitled to receive
funds from the trust fund only in the event of the Company’s liquidation upon failure to consummate a business combination
or if the holder seeks to redeem his respective shares upon consummation of such business combination or in connection with certain
amendments to the Company’s Memorandum and Articles of Association. In no other circumstances shall the holder have any right
or interest of any kind in or to the trust fund.Exhibit 4.3

 

	
        NUMBER

        ________-
	(SEE REVERSE SIDE FOR LEGEND)

THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO THE EXPIRATION DATE (DEFINED BELOW)	WARRANTS

 

NATIONAL ENERGY SERVICES REUNITED CORP.

 

CUSIP G6375R 115

 

WARRANT

 

THIS CERTIFIES THAT, for value received

 

is the registered holder of a warrant or warrants (the “Warrant”),
expiring at 5:00 p.m., New York City time, on the five year anniversary of the completion by National Energy Services Reunited
Corp., a British Virgin Islands company (the “Company”), of a share exchange, share reconstruction and amalgamation,
purchase of all or substantially all of the assets, contractual arrangement, or other similar business combination with one or
more businesses or entities (a “Business Combination”), to purchase one-half (1/2) of one fully paid and non-assessable
ordinary share, no par value (“Shares”), of the Company for each Warrant evidenced by this Warrant Certificate. The
Warrant entitles the holder thereof to purchase from the Company, commencing on the later of (a) _________, 2018, 12 months from
the date of the final prospectus, and (b) thirty (30) days after the Company’s completion of a Business Combination, such
number of Shares of the Company at the price of $5.75 per half share (the “Warrant Price”); provided however, that
a Warrant may not be exercised for a fractional share, so that only an even number of Warrants may be exercised at any given time,
upon surrender of this Warrant Certificate and payment of the Warrant Price at the office or agency of the Warrant Agent, Computershare
Trust Company, N.A., but only subject to the conditions set forth herein and in the Warrant Agreement between the Company and Computershare
Trust Company, N.A. In no event will the Company be required to net cash settle any warrant exercise. The Warrant Agreement provides
that upon the occurrence of certain events the Warrant Price and the number of Shares purchasable hereunder, set forth on the face
hereof, may, subject to certain conditions, be adjusted. The term Warrant Price as used in this Warrant Certificate refers to the
price per Share at which Shares may be purchased at the time the Warrant is exercised.

 

Upon any exercise of the Warrant for less
than the total number of full Shares provided for herein, there shall be issued to the registered holder hereof or the registered
holder’s assignee a new Warrant Certificate covering the number of Shares for which the Warrant has not been exercised.

 

Warrant Certificates, when surrendered at
the office or agency of the Warrant Agent by the registered holder hereof in person or by attorney duly authorized in writing,
may be exchanged in the manner and subject to the limitations provided in the Warrant Agreement, but without payment of any service
charge, for another Warrant Certificate or Warrant Certificates of like tenor and evidencing in the aggregate a like number of
Warrants.

 

Upon due presentment for registration of
transfer of the Warrant Certificate at the office or agency of the Warrant Agent, a new Warrant Certificate or Warrant Certificates
of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee in exchange for this
Warrant Certificate, subject to the limitations provided in the Warrant Agreement, without charge except for any applicable tax
or other governmental charge.

 

The Company and the Warrant Agent may deem
and treat the registered holder as the absolute owner of this Warrant Certificate (notwithstanding any notation of ownership or
other writing hereon made by anyone), for the purpose of any exercise hereof, of any distribution to the registered holder, and
for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary.

 

This Warrant does not entitle the registered
holder to any of the rights of a shareholder of the Company.

 

     

     

    

  

The Company reserves the right to call the
Warrant at any time prior to its exercise with a notice of call in writing to the holders of record of the Warrant, giving at least
30 days’ notice of such call, at any time while the Warrant is exercisable, if the last sale price of the Shares has been
at least $21.00 per share on each of 20 trading days within any 30 trading day period (the “30-day trading period”)
ending on the third business day prior to the date on which notice of such call is given and if, and only if, there is a current
registration statement in effect with respect to the Shares underlying the Warrants commencing five business days prior to the
30-day trading period and continuing each day thereafter until the date of redemption. The call price of the Warrants is to be
$.01 per Warrant. Any Warrant either not exercised or tendered back to the Company by the end of the date specified in the notice
of call shall be canceled on the books of the Company and have no further value except for the $.01 call price.

 

	By	 	 	 
	 	President	 	Secretary

 

SUBSCRIPTION FORM

To Be Executed by the Registered Holder in Order to Exercise Warrants

 

The undersigned Registered Holder irrevocably elects to exercise
______________ Warrants represented by this Warrant Certificate, and to purchase the ordinary shares issuable upon the exercise
of such Warrants, and requests that Certificates for such shares shall be issued in the name of

 

	 
	(PLEASE TYPE OR PRINT NAME AND ADDRESS)
	 
	 
	 
	(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)
	and be delivered to
	 
	(PLEASE PRINT OR TYPE NAME AND ADDRESS)
	 

 

and, if such number of Warrants shall not be all the Warrants
evidenced by this Warrant Certificate, that a new Warrant Certificate for the balance of such Warrants be registered in the name
of, and delivered to, the Registered Holder at the address stated below:

 

	Dated:	 	 	(SIGNATURE)
	 	 	 	 
	 	 	 	(ADDRESS)
	 	 	 	 
	 	 	 	 
	 	 	 	(TAX IDENTIFICATION NUMBER)

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