Document:

Exhibit 4.2

 

	
        NUMBER

        ________-
	 	
        (SEE REVERSE SIDE FOR LEGEND)

        THIS WARRANT WILL BE VOID IF NOT EXERCISED
        PRIOR TO THE EXPIRATION DATE

(DEFINED BELOW)
	 	WARRANTS

 

FUSION
FUEL GREEN PLC

 

CUSIP G3R25D 100

 

WARRANT

 

THIS CERTIFIES THAT, for value
received

 

is the registered holder of a warrant
or warrants (the “Warrant”) of Fusion Fuel Green PLC, a public limited company incorporated under the laws of
Ireland (the “Company”), expiring at 5:00 p.m., New York City time, on the five year anniversary of the Amended
and Restated Warrant Agreement between the Company and Continental Stock Transfer & Trust Company (the “Warrant Agent”)
dated as of [             ] (the “Warrant Agreement”), to subscribe for one fully paid and non-assessable Class A Ordinary Share,
par value $0.0001 per share (“Shares”), of the Company for each Warrant evidenced by this Warrant Certificate.
The Warrant entitles the holder thereof to subscribe for such number of Shares of the Company at the Warrant Price (as defined
below), upon surrender of this Warrant Certificate and payment of the Warrant Price at the office or agency of the Warrant Agent,
but only subject to the conditions set forth herein and in the Warrant Agreement. 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. The initial Warrant Price per Ordinary Share for any Warrant is equal to $11.50
per share.

 

No fraction of a Share will be
issued upon any exercise of a Warrant. If the holder of a Warrant would be entitled to receive a fraction of a Share upon any exercise
of a Warrant, the Company shall, upon such exercise, round up to the nearest whole number the number of Shares to be issued to
such holder.

 

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 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 other than the Company or the Warrant Agent), for the purpose of any exercise hereof, 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 $18.00 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. The call price of the Warrants
is to be $0.01 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 $0.01 call price.

 

This certificate is not valid unless
and until countersigned by the Warrant Agent.

 

	By	 	 	 
	 	Chairman / Chief Executive Officer	 	Secretary / Chief Financial Officer

 

     

     

    

 

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 subscribe for 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)

 

ASSIGNMENT

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

 

For Value Received, _______________________ hereby sell, assign,
and transfer unto

 

	(PLEASE TYPE OR PRINT NAME AND ADDRESS)
	 
	 

(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to _______________________________________________________________________

(PLEASE PRINT OR TYPE NAME AND ADDRESS)

 

______________________ of the Warrants represented by this Warrant
Certificate, and hereby irrevocably constitute and appoint _________________________________ Attorney to transfer this Warrant
Certificate on the books of the Company, with full power of substitution in the premises.

 

	Dated: _________________________	_________________________________
	 	(SIGNATURE)

 

The
signature to the assignment of the Subscription Form must correspond to the name written upon the face of this Warrant Certificate
in every particular, without alteration or enlargement or any change whatsoever, and must be guaranteed by a commercial bank or
trust company or a member firm of the NYSE American, Nasdaq, New York Stock Exchange, Pacific Stock Exchange, or Chicago Stock
Exchange.Exhibit
4.9.1

  

NOVATION
AGREEMENT

 

THIS
NOVATION AGREEMENT (the “Agreement”) is entered into as of [●], 2020, by and among HL Acquisitions
Corp., a British Virgin Islands company (“HL”), Fusion Fuel Green PLC, a public limited company incorporated
in Ireland (“Parent”), and Continental Stock Transfer & Trust Company, a New York corporation, with offices
at 1 State Street Plaza, New York, New York 10004 (“Warrant Agent”).

 

WHEREAS,
HL and the Warrant Agent have previously entered into a warrant agreement, dated as of June 27, 2018 (the “Warrant Agreement”)
governing the terms of HL’s outstanding warrants to purchase ordinary shares of HL (the “HL Warrants”);

 

WHEREAS,
HL entered into a Business Combination Agreement, dated as of June 6, 2020 (as amended and restated on August 25, 2020, and as
may be further amended from time to time, the “Business Combination Agreement”), with Parent, Fusion Fuel Atlantic
Limited, a British Virgin Islands business company and wholly owned subsidiary of Parent (“Merger Sub”), Fusion
Welcome – Fuel, S.A., a public limited company domiciled in Portugal, sociedade anónima (“Fusion
Fuel”), and the shareholders of Fusion Fuel (“Fusion Fuel Shareholders”), pursuant to which, among
other things, upon the closing of the transactions contemplated by the Business Combination Agreement (“Closing”),
(i) Merger Sub will merge with and into HL (the “Merger”) with HL being the surviving entity of the Merger
and becoming a wholly-owned subsidiary of Parent, followed immediately by (ii) the acquisition by Parent of all of the issued
and outstanding shares of Fusion Fuel (the “Share Exchange”, and together with the Merger, the “Transactions”);

 

WHEREAS,
effective upon the consummation of the Merger, (i) each HL ordinary share outstanding on the closing date will be converted into
one Class A ordinary share of Parent (“Parent Class A Ordinary Shares”), except that holders of HL ordinary
shares sold in HL’s initial public offering will be entitled to elect instead to receive a pro rata portion of HL’s
trust account, as provided in HL’s amended and restated memorandum and articles of association (“M&A”),
and except for an aggregate of 125,000 ordinary shares of HL held by certain initial holders which will be forfeited and cancelled
upon the consummation of the Merger, (ii) each outstanding unit purchase option of HL will be terminated, forfeited and cancelled
in consideration for the issuance of an aggregate of 50,000 Parent Class A Ordinary Shares, (iii) each outstanding right of HL
will be adjusted for one-tenth of one ordinary share of HL immediately prior to the effective time of the Merger, and each such
ordinary share of HL will be converted into one Parent Class A Ordinary Share, (iv) each outstanding warrant issued by HL as part
of the units in HL’s initial public offering (“IPO Warrants”) will remain outstanding and, in accordance
with Section 4.5 of the Warrant Agreement, will be automatically adjusted to entitle the holder to subscribe for one Parent Class
A Ordinary Share at a price of $11.50 per share, subject to adjustment as set forth herein, (v) each outstanding warrant issued
by HL in a private placement (“Placement Warrants”) will remain outstanding and, in accordance with Section
4.5 of the Warrant Agreement, will be automatically adjusted to entitle the holder to purchase one Parent Class A Ordinary Share
at a price of $11.50 per share, subject to adjustment as set forth herein, and (vi) certain convertible notes of HL may be converted
into warrants of HL (“Working Capital Warrants”), and upon the Closing each Working Capital Warrant will remain
outstanding and, in accordance with Section 4.5 of the Warrant Agreement, will be automatically adjusted to entitle the holder
to subscribe for one Parent Class A Ordinary Share at a price of $11.50 per share, subject to adjustment as set forth herein;

 

WHEREAS,
upon consummation of the Share Exchange, (i) the Fusion Fuel Shareholders will be issued a total of 2,125,000 Class B ordinary
shares of Parent and 2,125,000 warrants of Parent (the “Fusion Fuel Warrants”), with each Fusion Fuel Warrant
entitling the holder to subscribe for one Parent Class A Ordinary Share at a price of $11.50 per share, subject to adjustment
as set forth in the Warrant Agreement, and (ii) the Fusion Fuel Shareholders holding Class A Shares of Fusion Fuel will have the
right, upon the achievement of certain milestones as set forth in the Business Combination Agreement, to receive their pro rata
portion of up to an aggregate of 1,137,000 Parent Class A Ordinary Shares and 1,137,000 warrants of Parent (the “Contingent
Consideration Warrants” together with the IPO Warrants , Placement Warrants, Working Capital Warrants, and Fusion Fuel
Warrants, collectively, the “Warrants”), with each Contingent Consideration Warrant entitling the holder to
subscribe for one Parent Class A Ordinary Share at a price of $11.50 per share, subject to adjustment as set forth in the Warrant
Agreement;

 

WHEREAS,
in connection with the foregoing, HL, the Parent, and the Warrant Agent wish that the Parent shall assume by way of novation all
of the liabilities, duties, and obligations of HL under and in respect of the Warrant Agreement, and that HL and the Warrant Agent
shall be released from all obligations to each other under the Warrant Agreement;

 

    1

     

    

 

WHEREAS,
the Warrant Agent consents to the novation of the Warrant Agreement from HL to Parent and wishes to release HL from its obligations
under and in respect of the Warrant Agreement;

 

NOW, THEREFORE,
for good and valuable consideration, receipt of which is hereby acknowledged, the parties hereby agree as follows:

 

1. Novation.
In accordance with Section 9.1 of the Warrant Agreement:

 

(a)
Parent shall be substituted for HL in the Warrant Agreement and shall become obligated to perform all of the duties, obligations
and liabilities of HL under and in respect of the Warrant Agreement. Parent undertakes full performance of the Warrant Agreement
in the place of HL and hereby agrees to faithfully and fully perform the Warrant Agreement as if Parent had been the original
party thereto.

 

(b)
The Warrant Agent and HL shall be irrevocably and unconditionally released from their obligations to each other under and in respect
of the Warrant Agreement and their respective rights against each other under and in respect of the Warrant Agreement shall be
cancelled.

 

(c)
The Warrant Agent shall owe to the Parent all the rights that were, immediately prior to the novation, owed to HL under and in
respect of the Warrant Agreement.

 

(d)
The Warrant Agent shall perform and discharge all obligations under and in respect of the Warrant Agreement and be bound by its
terms in every way as if the Parent had been the original party thereto in place of HL.

 

2. Amendment
and Restatement of Warrant Agreement. At the Closing, pursuant to Section 9.8 of the Warrant Agreement, Parent and the Warrant
Agent shall enter into an amended and restated Warrant Agreement to reflect the novation hereunder and to add the Fusion Fuel
Warrants and Contingent Consideration Warrants as “Warrants” under the Warrant Agreement.

 

3. Release
of HL from Liabilities. In consideration of this novation, HL shall be released and discharged of all obligations to perform
under the Warrant Agreement as of the date hereof, and shall be fully relieved of all liability to Parent or the Warrant Agent
arising out of the Warrant Agreement.

 

4. Replacement
Instruments. From and after the Closing, upon request by any holder of a Warrant, Parent shall issue a new certificate for
such Warrant reflecting the adjustment to the terms and conditions described herein.

 

5. Governing
Law. This Agreement shall be governed by, and construed in accordance with, the laws of the State of New York, as such laws
are applied to contracts entered into and performed in such State without resort to that State’s conflict-of-laws rules.

 

6. Counterparts.
This Agreement may be executed in counterparts, each of which shall be deemed to be an original, but all of which together shall
constitute one and the same instrument. Execution and delivery of this Agreement by email or exchange of facsimile copies bearing
the facsimile signature of a party hereto shall constitute a valid and binding execution and delivery of this Agreement by such
party.

 

7. Successors
and Assigns. All the covenants and provisions of this Agreement shall bind and inure to the benefit of each party’s
respective successors and assigns.

 

[Signature
Page Follows]

  

    2

     

    

 

IN
WITNESS WHEREOF, the parties hereto have signed this Agreement as of the date and year first written above.

 

	 	HL
    ACQUISITIONS CORP.
	 	 	 	 
	 	By: 	 
	 	 	Name: 	Jeffrey
    E. Schwarz
	 	 	Title:	Chief
    Executive Officer
	 	 	 	 
	 	FUSION
    FUEL GREEN PLC
	 	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	CONTINENTAL
    STOCK TRANSFER & TRUST COMPANY
	 	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 

 

 

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