Document:

THIS
NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY APPLICABLE
STATE SECURITIES LAWS AND HAS BEEN ACQUIRED FOR INVESTMENT PURPOSES AND MAY NOT BE OFFERED, SOLD, PLEDGED, HYPOTHECATED OR OTHERWISE
TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION
FROM, OR IN A TRANSACTION NOT SUBJECT TO THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE
STATE SECURITIES LAWS OR AN OPINION OF COUNSEL SATISFACTORY TO THE MAKER THAT SUCH REGISTRATION IS NOT REQUIRED.

 

JOHN
KEELER & CO., INC.

 

4%
Promissory Note

 

	$500,000.00	November
    26, 2019

 

The
Note has been issued in accordance with exemptions from registration under the Securities Act of 1933, as amended (the “Securities
Act”) pursuant to a Merger Agreement, dated the date hereof (the “Merger Agreement”), among John
Keeler & Co., Inc., d/b/a Blue Star Foods, a Florida corporation (the “Maker”), the Holder (as defined
below), and the other Sellers signatories thereto, and Coastal Pride Company, Inc., a South Carolina corporation (“Coastal”)
and Coastal Pride Seafood, LLC, a Florida limited liability company and wholly-owned subsidiary of the Maker. Capitalized terms
not otherwise defined herein shall have the meanings ascribed to them in the Merger Agreement.

 

Section
1. Principal and Interest. FOR VALUE RECEIVED, the Maker promises to pay to the order of Walter Lubkin, Jr., an individual
(the “Holder”), the principal sum of FIVE HUNDRED THOUSAND DOLLARS ($500,000.00) together with interest on
any outstanding unpaid principal at the rate of four percent (4%) per annum (computed on the basis of a 365-day year and the actual
days elapsed) on November 26, 2024 or such earlier date as this Note is required or permitted to be repaid as provided hereunder.
The outstanding principal amount hereunder and all accrued interest thereon shall be payable quarterly within thirty (30) days
of the last day of the quarter (the “Quarterly Payment”), commencing February 26, 2020. Each Quarterly Payment
shall be an amount equal to the lesser of (i) $25,000 and (ii) 25% of the Company’s quarterly earnings before interest,
tax, depreciation and amortization (“EBITDA”), as determined on the first day of each quarter. The amount of
EBITDA shall be adjusted for expenses reflected on Coastal’s income statement after the Closing Date which expenses are
for the sole benefit of the Maker.

 

All
payments due hereunder shall be made in lawful money of the United States.

 

Section
2. Paying Agent and Registrar. Initially, the Maker shall act as paying agent and registrar. The Maker may change any paying
agent or registrar by giving the Holder not less than five (5) business days’ written notice of its election to do so, specifying
the name, address, telephone number and facsimile number of the paying agent or registrar.

 

    	 	 	 

    	 

    

 

Section
3. Prepayment. The principal hereunder and any and all interest accrued thereon may be prepaid by the Maker in whole or
in part at any time without premium or penalty.

 

Section
4. Offset. The principal amount due under this Note shall be reduced, pro rata with the principal amounts due under the
convertible notes issued by the Maker pursuant to the Merger Agreement, dated even date herewith, by the amount of Damages, if
any, to the Purchaser Indemnified Parties under Sections 6.2 and 6.3 of the Merger Agreement.

 

Section
5. Events of Default. An Event of Default is defined as follows: (i) failure by the Maker to pay interest and/or principal
under the Note when due, which failure shall continue unremedied for fifteen (15) or more business days after notice of such failure
has been given to the Maker; or (ii) if the Maker files for relief under the United States Bankruptcy Code (the “Bankruptcy
Code”) or under any other state or federal bankruptcy or insolvency law, or files an assignment for the benefit of creditors,
or if an involuntary proceeding under the Bankruptcy Code or under any other federal or state bankruptcy or insolvency law is
commenced against the Maker, and has not been resolved in a period of thirty (30) days after such commencement.

 

Upon
the occurrence of an Event of Default, the entire indebtedness with accrued interest thereon due under this Note shall, at the
option of the Holder, become immediately due and payable.

 

Section
6. Representations of the Holder.

 

(a)
The Holder is acquiring this Note for his own account as principal, not as a nominee or agent, for investment purposes only, and
not with a view to, or for, resale, distribution or fractionalization thereof, in whole or in part, and no other Person has a
direct or indirect beneficial interest in this Note or any portion thereof. The Holder does not have any contract, undertaking,
agreement or arrangement with any Person to sell, transfer or grant participation rights to such Person or to any third party
with respect to this Note.

 

(b)
The Maker is under no obligation to register this Note under the Securities Act.

 

Section
7. Notice. All notices or other communications required or permitted hereunder shall be in writing. Any notice,
request, demand, claim or other communication hereunder shall be deemed duly given (a) if by personal delivery, when so delivered,
(b) if mailed, three (3) business days after having been sent by registered or certified mail, return receipt requested, postage
prepaid and addressed to the intended recipient as set forth below, or (c) if sent through an overnight delivery service in circumstances
to which such service guarantees next day delivery, the day following being so sent:

 

    	 	2	 

    	 

    

 

	If
    to the Maker to: 	John
    Keeler & Co., Inc.
	 	3000
        NW 109th Avenue

        Miami,
        Florida 33172

        Attn:
        Christopher Constable

        Facsimile:
        (306)-836-6859

        

	 	 
	With
    a copy to:	The
        Crone Law Group, P.C.

        500
        Fifth Ave, Suite 938

        New
        York, NY 10110

        Attention:
        Eric Mendelson, Esq.

        Facsimile:
        (818) 688-3130

	 	 
	If
    to the Holder:	Walter
        Lubkin Jr.

        10
        B March Harbor Drive

        Beaufort,
        South Carolina 29907

        Facsimile
        : ________________

 

Any
party may change the address to which notices and other communications hereunder are to be delivered by giving the other parties
notice in the manner herein set forth.

 

Section
8. Subordination. This Note and the indebtedness evidenced by this Note is subordinate and subject to prior payment in
full of all indebtedness and other liabilities and obligations of the Maker under its loan and security agreement with ACF Finco
I LP, dated August 31, 2016, as amended, and related revolving credit note and other associated documents.

 

Section
9 Governing Law. This Note shall be deemed to be made and governed, construed and enforced in accordance with the laws
of the State of Florida, without giving effect to principles of conflicts of law. The Maker and the Holder hereby consent to and
irrevocably submit to personal jurisdiction over each of them by the applicable State or Federal Courts of the State of Florida,
County of Dade, in any action or proceeding, irrevocably waive trial by jury and personal service of any and all process and other
documents and specifically consent that in any such action or proceeding, any service of process may be effectuated upon any of
them by certified mail, return receipt requested, in accordance with Section 7 above.

 

Section
10. Severability. The invalidity of any of the provisions of this Note shall not invalidate or otherwise affect
any of the other provisions of this Note, which shall remain in full force and effect.

 

Section
11. Successors and Assigns. This Note may not be assigned or transferred by the Holder without the prior written
consent of the Maker. Subject to the preceding sentence, the rights and obligations of the Maker and the Holder shall be binding
upon and benefit the successors, permitted assigns, heirs, administrators and permitted transferees of the Holder.

 

    	 	3	 

    	 

    

 

IN
WITNESS WHEREOF, the Maker has executed this Note as of the date first written above by its duly authorized
officer.

 

	 	JOHN KEELER & CO., INC.
	 	 	 
	 	By:	/s/
    John Keeler
	 	Name:	John
    Keeler
	 	Title:	Chief
    Executive Officer

 

    	 	4THIS
NOTE AND THE SECURITIES ISSUABLE HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES
ACT”), OR ANY APPLICABLE STATE SECURITIES LAWS AND HAS BEEN ACQUIRED FOR INVESTMENT PURPOSES AND MAY NOT BE OFFERED, SOLD,
PLEDGED, HYPOTHECATED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT
OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO THE REGISTRATION REQUIREMENTS OF THE SECURITIES
ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS OR AN OPINION OF COUNSEL SATISFACTORY TO THE MAKER THAT SUCH REGISTRATION
IS NOT REQUIRED.

 

JOHN
KEELER & CO., INC.

 

4%
Convertible Promissory Note

 

	$________.00	November
    26, 2019

 

The
Convertible Note (this “Note”) has been issued in accordance with exemptions from registration under the Securities
Act of 1933, as amended (the “Securities Act”) pursuant to a Merger Agreement, dated the date hereof (the “Merger
Agreement”), among John Keeler & Co., Inc., d/b/a Blue Star Foods, a Florida corporation (the “Maker”),
the Holder (as defined below), and the other Sellers signatories thereto, Coastal Pride Company, Inc., a South Carolina corporation,
and Coastal Pride Seafood, LLC, a Florida limited liability company and wholly-owned subsidiary of the Maker. This Note is one
of an issue of four (4) convertible notes (such notes, the “Other Convertible Notes”) issued pursuant to the
Merger Agreement. Capitalized terms not otherwise defined herein shall have the meanings ascribed to them in the Merger Agreement.

 

Section
1. Principal and Interest. FOR VALUE RECEIVED, the Maker promises to pay to the order of __________________, an individual
(the “Holder”), the principal sum of _____________________ ($______.00) together with interest on any outstanding
unpaid principal at the rate of four percent (4%) per annum (computed on the basis of a 365-day year and the actual days elapsed),
as reduced by the issuance of Conversion Shares described in Section 4 below. One-sixth (1/6) of the total principal amount hereunder
and all accrued interest thereon shall be payable quarterly commencing on the first day of August 26, 2021, subject to adjustment
as described in Section 7 below.

 

All
payments due hereunder shall be made in lawful money of the United States.

 

Section
2. Paying Agent and Registrar. Initially, the Maker shall act as paying agent and registrar. The Maker may change any paying
agent or registrar by giving the Holder not less than five (5) business days’ written notice of its election to do so, specifying
the name, address, telephone number and facsimile number of the paying agent or registrar.

 

Section
3. Prepayment. The principal hereunder and any and all interest accrued thereon may be prepaid by the Maker in whole or
in part at any time without premium or penalty.

 

    	 

    	 

    

 

Section
4. Conversion. At the election of the Holder given at any time after the first anniversary of the date of this Note and
prior to the end of the 36-month term of this Note and prior to payment in full of this Note, the principal amount of, together
with accrued interest on, this Note may be convertible, in whole or in part, into shares of common stock, par value $0.0001 per
share, of Blue Star Foods Corp., a Delaware corporation (“Blue Star”) and the parent of the Maker, (the “Common
Stock”) at the rate of one share for each $2.00 of principal and/or interest so converted (the “Conversion
Shares”). Upon delivery to the Maker of a completed Notice of Conversion, in the form attached hereto, Blue Star shall
issue and deliver to the Holder as promptly as practicable after receipt of such Notice of Conversion that number of Conversion
Shares for the portion of this Note converted in accordance with the foregoing. The Holder shall not have rights as a shareholder
of Blue Star with respect to unconverted portions of this Note. However, the Holder will have all the rights of a shareholder
of Blue Star with respect to the Conversion Shares when issued.

 

Section
5. Adjustment of Number of Shares Issuable Upon Conversion. In the event that Blue Star shall, after the date of issuance
of this Note: (i) pay a stock dividend or make a distribution in shares of its capital stock (whether shares of its Common Stock
or of capital stock of any other class); (ii) subdivide its outstanding shares of Common Stock; (iii) combine its outstanding
shares of Common Stock into a smaller number of shares; or (iv) issue by reclassification of its shares of Common Stock any shares
of capital stock of the Company, the number of shares issuable upon conversion of this Note shall be adjusted so that the Holder
shall be entitled to receive the number of shares of capital stock of the Company which the Holder would have owned immediately
following such action had this Note been converted immediately prior thereto, and the number of shares issuable upon conversion
of this Note shall thereafter be subject to further adjustment pursuant to this Section 5. An adjustment made pursuant to this
Section 5 shall become effective retroactively immediately after the record date in the case of a dividend or distribution and
shall become effective immediately upon the effective date in the case of a subdivision, combination or reclassification.

 

Section
6. Reservation of Shares. Blue Star shall reserve and keep available out of its authorized common stock that number of
shares equal the number of Conversion Shares issuable upon conversion of all outstanding amounts under this Note.

 

Section
7. Offset. The principal amount due under this Note shall be reduced, pro rata with the principal amounts due under the
Other Convertible Notes and the promissory note issued by the Maker to Walter Lubkin, Jr., dated even date herewith, by the amount
of Damages, if any, to the Purchaser Indemnified Parties under Sections 6.2 and 6.3 of the Merger Agreement.

 

Section
8. Leak-Out. During the period commencing on the Closing Date and ending on the one-year anniversary thereof, the Holder
may not lend, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly (each a “Transfer”),
any Conversion Shares, or (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of
the economic consequences of ownership of any such shares, whether any such transaction is to be settled by delivery of securities,
in cash or otherwise. From and after the one-year anniversary of the Closing Date, the Holder may Transfer up to 25% of the aggregate
of the Consideration Shares received under the Purchase Agreement and the Conversion Shares held by the Holder, in each successive
six-month period.

 

    	2

    	 

    

 

Section
9. Events of Default. An Event of Default is defined as follows: (i) failure by the Maker to pay interest and/or principal
under the Note when due, which failure shall continue unremedied for fifteen (15) or more business days after notice of such failure
has been given to the Maker; or (ii) if the Maker files for relief under the United States Bankruptcy Code (the “Bankruptcy
Code”) or under any other state or federal bankruptcy or insolvency law, or files an assignment for the benefit of creditors,
or if an involuntary proceeding under the Bankruptcy Code or under any other federal or state bankruptcy or insolvency law is
commenced against the Maker, and has not been resolved in a period of thirty (30) days after such commencement.

 

Upon
the occurrence of an Event of Default, the entire indebtedness with accrued interest thereon due under this Note shall, at the
option of the Holder, become immediately due and payable.

 

Section
10. Representations of the Holder.

 

(a)
The Holder is acquiring this Note for his own account as principal, not as a nominee or agent, for investment purposes only, and
not with a view to, or for, resale, distribution or fractionalization thereof, in whole or in part, and no other Person has a
direct or indirect beneficial interest in this Note or any portion thereof. The Holder does not have any contract, undertaking,
agreement or arrangement with any Person to sell, transfer or grant participation rights to such Person or to any third party
with respect to this Note.

 

(b)
The Maker is under no obligation to register this Note or the Conversion Shares under the Securities Act.

 

Section
11. Notice. All notices or other communications required or permitted hereunder shall be in writing. Any notice,
request, demand, claim or other communication hereunder shall be deemed duly given (a) if by personal delivery, when so delivered,
(b) if mailed, three (3) business days after having been sent by registered or certified mail, return receipt requested, postage
prepaid and addressed to the intended recipient as set forth below, or (c) if sent through an overnight delivery service in circumstances
to which such service guarantees next day delivery, the day following being so sent:

 

    	3

    	 

    

 

	If
    to the Maker to: 	John
    Keeler & Co., Inc.
	 	3000
        NW 109th Avenue

        Miami,
        Florida 33172

        Attn:
        Christopher Constable

        Facsimile:
        (306)-836-6859

	 	 
	With
    a copy to:	The
        Crone Law Group, P.C.

        500
        Fifth Ave, Suite 938

        New
        York, NY 10110

        Attention:
        Eric Mendelson, Esq.

        Facsimile:
        (818) 688-3130

 

	If
    to the Holder:	_______________

        _______________

        Facsimile:
        _____________

 

Any
party may change the address to which notices and other communications hereunder are to be delivered by giving the other parties
notice in the manner herein set forth.

 

Section
12. Rank; Subordination. All payments due under this Note shall rank pari passu with all Other Convertible Notes
and shall be subordinate and subject to prior payment in full of all indebtedness and other liabilities and obligations of the
Maker under its loan and security agreement with ACF Finco I LP, dated August 31, 2016, as amended, and related revolving credit
note and other associated documents.

 

Section
13. Governing Law. This Note shall be deemed to be made and governed, construed and enforced in accordance with the laws
of the State of Florida, without giving effect to principles of conflicts of law. The Maker and the Holder hereby consent to and
irrevocably submit to personal jurisdiction over each of them by the applicable State or Federal Courts of the State of Florida,
County of Dade, in any action or proceeding, irrevocably waive trial by jury and personal service of any and all process and other
documents and specifically consent that in any such action or proceeding, any service of process may be effectuated upon any of
them by certified mail, return receipt requested, in accordance with Section 11 above.

 

Section
14. Severability; Amendment. The invalidity of any of the provisions of this Note shall not invalidate or otherwise
affect any of the other provisions of this Note, which shall remain in full force and effect. This Note may be amended only with
the written consent of the Holder and the Maker.

 

Section
15. Successors and Assigns. This Note may not be assigned or transferred by the Holder without the prior written
consent of the Maker. Subject to the preceding sentence, the rights and obligations of the Maker and the Holder shall be binding
upon and benefit the successors, permitted assigns, heirs, administrators and permitted transferees of the Holder.

 

    	4

    	 

    

 

IN
WITNESS WHEREOF, the Maker has executed this Note as of the date first written above by its duly authorized officer.

 

	 	JOHN
    KEELER & CO., INC.
	 	 	 
	 	By:	/s/
    John Keeler
	 	Name:	John
    Keeler
	 	Title:
    	Chief
    Executive Officer

 

    	5

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