Document:

GUARANTY AGREEMENT

 

THIS GUARANTY AGREEMENT
is dated as of August 31, 2013 and effective as of October 10, 2013 (as amended, restated or modified from time to time, the “Guaranty”),
and is made by HDI PLASTICS, INC., a corporation incorporated under the laws of the State of Texas (the “Guarantor”),
in favor of TCA GLOBAL CREDIT MASTER FUND, LP, a limited partnership organized and existing under the laws of the Cayman
Islands (the “Lender”).

 

WHEREAS, Hypertension
Diagnostics, Inc., a corporation incorporated under the laws of the State of Minnesota (“Borrower”),
has entered into a senior secured revolving credit facility agreement, dated as of the date hereof (as may be amended, restated
or modified from time to time, the “Credit Agreement”), by and among the Borrower, as borrower, the Guarantor,
as guarantor, and the Lender, as lender, pursuant to which the Lender has agreed to advance an aggregate principal amount of up
to Three Million and No/100 United States Dollars (US$3,000,000) (the “Loan”) to the Borrower, which
Loan shall be further evidenced by a revolving convertible promissory note given by the Borrower in favor of Lender (as may be
amended, restated or modified from time to time, the “Note”); and

 

WHEREAS, in order to
induce Lender to make the Loan, and with full knowledge that Lender would not make the Loan without this Guaranty, Guarantor has
agreed to execute and deliver this Guaranty to Lender, for the benefit of Lender, as security for the Liabilities and Obligations;
and

 

WHEREAS, Guarantor
is a subsidiary of Borrower and will substantially benefit from Lender’s Loan to Borrower;

 

NOW, THEREFORE, in
consideration of the mutual covenants and agreements of the parties hereinafter set forth and other good and valuable consideration,
the receipt and sufficiency of which is hereby acknowledged, the parties each intending to be legally bound, hereby do agree as
follows:

 

1.           LIABILITIES
GUARANTEED

 

Guarantor hereby guarantees
and becomes surety to Lender for the full, prompt and unconditional payment of the Liabilities and payment and performance of the
Obligations, when and as the same shall become due, whether at the stated maturity date, by acceleration or otherwise, and the
full, prompt and unconditional performance of each term and condition to be performed by Borrower under the Note and the other
Loan Documents. This Guaranty is a primary obligation of Guarantor and shall be a continuing inexhaustible Guaranty. This is a
guaranty of payment and not of collection. Lender may require Guarantor to pay and perform its liabilities and obligations under
this Guaranty and may proceed immediately against Guarantor without being required to bring any proceeding or take any action against
Borrower or any other Person prior thereto; the liability of Guarantor hereunder being independent of and separate from the liability
of Borrower, any other guarantor, any other Person, and the availability of other collateral security for the Note and the other
Loan Documents.

 

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2.           DEFINITIONS

 

All capitalized terms
used in this Guaranty that are defined in the Credit Agreement shall have the meanings assigned to them in the Credit Agreement,
unless the context of this Guaranty requires otherwise.

 

3.           REPRESENTATIONS
AND WARRANTIES. Guarantor represents and warrants to Lender as follows:

 

3.1.          Organization,
Powers. Guarantor: (i) is a corporation, duly incorporated, validly existing and in good standing under the laws of the State
of Texas; (ii) has the power and authority to own its properties and assets and to carry on its business as now being conducted
and as now contemplated; and (iii) has the power and authority to execute, deliver and perform (and the officer or manager executing
this Guaranty on behalf of Guarantor has been duly authorized to so act and execute this Guaranty on behalf of the Guarantor),
and by all necessary action has authorized the execution, delivery and performance of, all of its obligations under this Guaranty
and any other Loan Documents to which it is a party.

 

3.2.          Execution
of Guaranty. Guarantor is a subsidiary of Borrower and will substantially benefit from Lender’s Loan to Borrower. This
Guaranty, and each other Loan Document to which Guarantor is a party, have been duly executed and delivered by Guarantor. Execution,
delivery and performance of this Guaranty and each other Loan Document to which Guarantor is a party will not: (i) violate any
provision of any law, rule or regulation, any judgment, order, writ, decree or other instrument of any governmental authority,
or any provision of any contract or other instrument to which Guarantor is a party or by which Guarantor or any of its properties
or assets are bound; (ii) result in the creation or imposition of any lien, claim or encumbrance of any nature, other than the
liens created by the Loan Documents; and (iii) require any consent from, exemption of, or filing or registration with, any governmental
authority or any other Person, other than any filings in connection with the liens created by the Loan Documents.

 

3.3.          Obligations
of Guarantor. This Guaranty and each other Loan Document to which Guarantor is a party are the legal, valid and binding obligations
of Guarantor, enforceable against Guarantor in accordance with their terms, except as the same may be limited by bankruptcy, insolvency,
reorganization or other laws relating to or affecting the enforcement of creditors’ rights generally or by equitable principles
which may affect the availability of specific performance and other equitable remedies. The making of the Loan by Lender to Borrower
and the assumption by Guarantor of its obligations hereunder and under any other Loan Document to which Guarantor is a party will
result in material benefits to Guarantor. This Guaranty was entered into by Guarantor for commercial purposes.

 

3.4.          Litigation.
There is no demand, claim, suit, action, litigation, investigation, audit, study, arbitration, administrative hearing, or any other
proceeding of any nature whatsoever at law or in equity or by or before any governmental authority now pending or, to the knowledge
of Guarantor, threatened, against or affecting Guarantor or any of its properties, assets or rights which, if adversely determined,
would materially impair or affect: (i) the value of any collateral securing the Liabilities; (ii) Guarantor’s right to carry
on its business substantially as now conducted (and as now contemplated); (iii) Guarantor’s financial condition; or (iv)
Guarantor’s capacity to consummate and perform its obligations under this Guaranty or any other Loan Document to which Guarantor
is a party.

 

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3.5.          No
Defaults. Guarantor is not in default beyond the expiration of any applicable grace or cure periods, in the performance, observance
or fulfillment of any of the obligations, covenants or conditions contained herein or in any contract or other instrument to which
Guarantor is a party or by which Guarantor or any of its properties or assets are bound.

 

3.6.          No
Untrue Statements. To the knowledge of Guarantor, no Loan Document or other document, certificate or statement furnished to
Lender by or on behalf of Borrower or Guarantor contains any untrue statement of a material fact or omits to state a material fact
necessary in order to make the statements contained herein and therein not misleading. Guarantor acknowledges that all such statements,
representations and warranties shall be deemed to have been relied upon by Lender as an inducement to make the Loan.

 

4.           NO
LIMITATION OF LIABILITY

 

4.1.          Guarantor
acknowledges that the obligations undertaken herein involve the guaranty of obligations of a Person other than Guarantor and, in
full recognition of that fact, Guarantor consents and agrees that Lender may, at any time and from time to time, without notice
or demand, and without affecting the enforceability or continuing effectiveness of this Guaranty: (i) change the manner, place
or terms of payment of (including, without limitation, any increase or decrease in the principal amount of the Liabilities or the
interest rate), and/or change or extend the time for payment of, or renew, supplement or modify, any of the Liabilities, any security
therefor, or any of the Loan Documents evidencing same, and the Guaranty herein made shall apply to the Liabilities and the Loan
Documents as so changed, extended, renewed, supplemented or modified; (ii) sell, exchange, release, surrender, realize upon
or otherwise deal with in any manner and in any order, any property securing the Liabilities; (iii) supplement, modify, amend or
waive, or enter into or give any agreement, approval, waiver or consent with respect to, any of the Liabilities, or any part thereof,
or any of the Loan Documents, or any additional security or guaranties, or any condition, covenant, default, remedy, right, representation
or term thereof or thereunder; (iv) exercise or refrain from exercising any rights against Borrower or other Persons (including
Guarantor) or against any security for the Liabilities; (v) accept new or additional instruments, documents or agreements in exchange
for or relative to any of the Loan Documents or the Liabilities, or any part thereof; (vi) accept partial payments on the
Liabilities; (vii) receive and hold additional security or guaranties for the Liabilities, or any part thereof; (viii) release,
reconvey, terminate, waive, abandon, fail to perfect, subordinate, exchange, substitute, transfer and/or enforce any security or
guaranties, and apply any security and direct the order or manner of sale thereof as Lender, in its sole and absolute discretion,
may determine; (ix) add, release, settle, modify or discharge the obligation of any maker, endorser, guarantor, surety, obligor
or any other Person who is in any way obligated for any of the Liabilities, or any part thereof; (x) settle or compromise any Liabilities,
whether in a Proceeding or not, and whether voluntarily or involuntarily, dispose of any security therefor (with or without consideration
and in whatever manner Lender deems appropriate), and subordinate the payment of any of the Liabilities, whether or not due, to
the payment of liabilities owing to creditors of Borrower other than Lender and Guarantor; (xi) consent to the merger, change or
any other restructuring or termination of the corporate existence of Borrower or any other Person, and correspondingly restructure
the Liabilities, and any such merger, change, restructuring or termination shall not affect the liability of Guarantor or the continuing
effectiveness hereof, or the enforceability hereof with respect to all or any part of the Liabilities; (xii) apply any sums it
receives, by whomever paid or however realized, to any of the Liabilities and/or (xiii) take any other action which might constitute
a defense available to, or a discharge of, Borrower or any other Person (including Guarantor) in respect of the Liabilities.

 

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4.2.          The
invalidity, irregularity or unenforceability of all or any part of the Liabilities or any Loan Document, or the impairment or loss
of any security therefor, whether caused by any action or inaction of Lender, or otherwise, shall not affect, impair or be a defense
to Guarantor’s obligations under this Guaranty.

 

4.3.          Upon
the occurrence and during the continuance of any Event of Default, Lender may enforce this Guaranty independently of any other
remedy, guaranty or security Lender at any time may have or hold in connection with the Liabilities, and it shall not be necessary
for Lender to marshal assets in favor of Borrower, any other guarantor of the Liabilities or any other Person or to proceed upon
or against and/or exhaust any security or remedy before proceeding to enforce this Guaranty. Guarantor expressly waives any right
to require Lender to marshal assets in favor of Borrower or any other Person, or to proceed against Borrower or any other guarantor
of the Liabilities or any collateral provided by any Person, and agrees that Lender may proceed against any obligor (including
Guarantor) and/or the collateral in such order as Lender shall determine in its sole and absolute discretion. Lender may file a
separate action or actions against Guarantor, whether action is brought or prosecuted with respect to any security or against any
other Person, or whether any other Person is joined in any such action or actions. Guarantor agrees that Lender and Borrower may
deal with each other in connection with the Liabilities or otherwise, or alter any contracts or agreements now or hereafter existing
between them, in any manner whatsoever, all without in any way altering or affecting the security of this Guaranty.

 

4.4.          Guarantor
expressly waives, to the fullest extent permitted by applicable law, any and all defenses which Guarantor shall or may have as
of the date hereof arising or asserted by reason of: (i) any disability or other defense of Borrower, or any other guarantor for
the Liabilities, with respect to the Liabilities; (ii) the unenforceability or invalidity of any security for or guaranty of the
Liabilities or the lack of perfection or continuing perfection or failure of priority of any security for the Liabilities; (iii) the
cessation for any cause whatsoever of the liability of Borrower, or any other guarantor of the Liabilities (other than by reason
of the full payment and performance of all Liabilities (other than contingent indemnification obligations)); (iv) any failure of
Lender to marshal assets in favor of Borrower or any other Person; (v) any failure of Lender to give notice of sale or other disposition
of collateral to Borrower or any other Person or any defect in any notice that may be given in connection with any sale or disposition
of collateral; (vi) any failure of Lender to comply with applicable laws in connection with the sale or other disposition of any
collateral or other security for any Liabilities, including, without limitation, any failure of Lender to conduct a commercially
reasonable sale or other disposition of any collateral or other security for any Liabilities; (vii) any act or omission of Lender
or others that directly or indirectly results in or aids the discharge or release of Borrower or any other guarantor of the Liabilities,
or of any security or guaranty therefor by operation of law or otherwise; (viii) any law which provides that the obligation of
a surety or guarantor must neither be larger in amount or in other respects more burdensome than that of the principal or which
reduces a surety’s or guarantor’s obligation in proportion to the principal obligation; (ix) any failure of Lender
to file or enforce a claim in any bankruptcy or other proceeding with respect to any Person; (x) the election by Lender, in any
bankruptcy proceeding of any Person, of the application or non-application of Section 1111(b)(2) of the United States Bankruptcy
Code; (xi) any extension of credit or the grant of any lien under Section 364 of the United States Bankruptcy Code; (xii) any use
of collateral under Section 363 of the United States Bankruptcy Code; (xiii) any agreement or stipulation with respect to the provision
of adequate protection in any bankruptcy proceeding of any Person; (xiv) the avoidance of any lien or security interest in favor
of Lender for any reason; (xv) any bankruptcy, insolvency, reorganization, arrangement, readjustment of debt, liquidation or dissolution
proceeding commenced by or against any Person, including without limitation any discharge of, or bar or stay against collecting,
all or any of the Liabilities (or any interest thereon) in or as a result of any such proceeding; or (xvi) any action taken by
Lender that is authorized by this Section or any other provision of any Loan Document. Guarantor expressly waives all setoffs and
counterclaims and all presentments, demands for payment or performance, notices of nonpayment or nonperformance, protests, notices
of protest, notices of dishonor and all other notices or demands of any kind or nature whatsoever with respect to the Liabilities,
and all notices of acceptance of this Guaranty or of the existence, creation or incurrence of new or additional Liabilities.

 

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4.5.          This
is a continuing guaranty and shall remain in full force and effect as to all of the Liabilities until such date as all amounts
owing by Borrower to Lender shall have been paid in full in cash and all obligations of Borrower with respect to any of the Liabilities
shall have terminated or expired (other than contingent indemnification obligations) (such date is referred to herein as the “Termination
Date”).

 

5.           LIMITATION
ON SUBROGATION

 

Until the Termination Date, Guarantor waives
any present or future right to which Guarantor is or may become entitled to be subrogated to Lender’s rights against Borrower
or to seek contribution, reimbursement, indemnification, payment or the like, or participation in any claim, right or remedy of
Lender against Borrower or any security which Lender now has or hereafter acquires, whether or not such claim, right or remedy
arises under contract, in equity, by statute, under common law or otherwise. If, notwithstanding such waiver, any funds or property
shall be paid or transferred to Guarantor on account of such subrogation, contribution, reimbursement, or indemnification at any
time when all of the Liabilities have not been paid in full, Guarantor shall hold such funds or property in trust for Lender and
shall forthwith pay over to Lender such funds and/or property to be applied by Lender to the Liabilities.

 

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6.           COVENANTS

 

6.1.          Financial
Statements; Compliance Certificate. No later than ten (10) days after written request therefore from Lender, Guarantor shall
deliver to Lender: (a) financial statements disclosing all of Guarantor’s assets, liabilities, net worth, income and contingent
liabilities, all in reasonable detail and in form acceptable to Lender, signed by Guarantor, and certified by Guarantor to Lender
to be true, correct and complete in all material respects; (b) complete copies of federal tax returns, including all schedules,
each of which shall be signed and certified by Guarantor to be true and complete copies of such returns; and (c) such other information
respecting the Guarantor as Lender may from time to time reasonably request.

 

6.2.          Subordination
of Other Debts. Guarantor hereby: (a) subordinates the obligations now or hereafter owed by Borrower to Guarantor (“Subordinated
Debt”) to any and all obligations of Borrower to Lender now or hereafter existing while this Guaranty is in effect,
and hereby agrees that Guarantor will not request or accept payment of or any security for any part of the Subordinated Debt, and
any proceeds of the Subordinated Debt paid to Guarantor, through error or otherwise, shall immediately be forwarded to Lender by
Guarantor, properly endorsed to the order of Lender, to apply to the Liabilities.

 

6.3.          Security
for Guaranty. All of Guarantor’s obligations and liability evidenced by this Guaranty is also secured by all of the Collateral
of the Guarantor pursuant to that certain Security Agreement by and between the Guarantor and Lender made of even date herewith
(the “Security Agreement”). All of the agreements, conditions, covenants, provisions, representations,
warranties and stipulations contained in the Security Agreement or any other Loan Documents to which Guarantor is a party which
are to be kept and performed by the Guarantor are hereby made a part of this Guaranty to the same extent and with the same force
and effect as if they were fully set forth herein, and the Guarantor covenants and agrees to keep and perform them, or cause them
to be kept or performed, strictly in accordance with their terms.

 

7.           EVENTS
OF DEFAULT

 

Each of the Events of Default in the Credit
Agreement shall constitute an Event of Default hereunder.

 

8.           REMEDIES.

 

8.1.          Upon
an Event of Default, as provided in the Credit Agreement, all liabilities and obligations of Guarantor hereunder shall become immediately
due and payable without demand or notice and, in addition to any other remedies provided by law or in equity, Lender may:

 

8.1.1.          Enforce
the obligations of Guarantor under this Guaranty.

 

8.1.2.          To
the extent not prohibited by and in addition to any other remedy provided by law or equity, setoff against any of the Liabilities
any sum owed by Lender in any capacity to Guarantor whether due or not.

 

8.1.3.          Perform
any covenant or agreement of Guarantor in default hereunder (but without obligation to do so) and in that regard pay such money
as may be required or as Lender may reasonably deem expedient. Any costs, expenses or fees, including reasonable attorneys’
fees and costs, incurred by Lender in connection with the foregoing shall be included in the Liabilities guaranteed hereby, and
shall be due and payable on demand, together with interest at the highest non-usurious rate permitted by applicable law, such interest
to be calculated from the date of such advance to the date of repayment thereof. Any such action by Lender shall not be deemed
to be a waiver or release of Guarantor hereunder and shall be without prejudice to any other right or remedy of Lender.

 

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8.2.          Settlement
of any claim by Lender against Borrower, whether in any Proceeding or not, and whether voluntary or involuntary, shall not reduce
the amount due under the terms of this Guaranty, except to the extent of the amount actually paid by Borrower or any other obligated
Person and legally retained by Lender in connection with the settlement (unless otherwise provided for herein).

 

9.           MISCELLANEOUS.

 

9.1.          Disclosure
of Financial Information. Lender is hereby authorized to disclose any financial or other information about Guarantor to any
governmental authority having jurisdiction over Lender or to any present, future or prospective participant or successor in interest
in the Note. The information provided may include, without limitation, amounts, terms, balances, payment history, return item history
and any financial or other information about Guarantor.

 

9.2.          Remedies
Cumulative. The rights and remedies of Lender, as provided herein and in any other Loan Document, shall be cumulative and concurrent,
may be pursued separately, successively or together, may be exercised as often as occasion therefor shall arise, and shall be in
addition to any other rights or remedies conferred upon Lender at law or in equity. The failure, at any one or more times, of Lender
to exercise any such right or remedy shall in no event be construed as a waiver or release thereof. Lender shall have the right
to take any action it deems appropriate without the necessity of resorting to any collateral securing this Guaranty.

 

9.3.          Integration.
This Guaranty and the other Loan Documents constitute the sole agreement of the parties with respect to the transactions contemplated
hereby and thereby and supersede all oral negotiations and prior writings with respect thereto.

 

9.4.          Attorneys’
Fees and Expenses. If Lender retains the services of counsel by reason of a claim of an Event of Default hereunder or under
any of the other Loan Documents, or on account of any matter involving this Guaranty, or for examination of matters subject to
Lender’s approval under the Loan Documents, all costs of suit and all reasonable attorneys’ fees and such other reasonable
expenses so incurred by Lender shall forthwith, on demand, become due and payable and shall be secured hereby.

 

9.5.          No
Implied Waiver. Lender shall not be deemed to have modified or waived any of its rights or remedies hereunder unless such modification
or waiver is in writing and signed by Lender, and then only to the extent specifically set forth therein. A waiver in one event
shall not be construed as continuing or as a waiver of or bar to such right or remedy on a subsequent event.

 

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9.6.          Waiver.
Except as otherwise provided herein or in any of the Loan Documents, Guarantor waives notice of acceptance of this Guaranty and
notice of the Liabilities and waives notice of default, non-payment, partial payment, presentment, demand, protest, notice of protest
or dishonor, and all other notices to which Guarantor might otherwise be entitled or which might be required by law to be given
by Lender. Guarantor waives the right to any stay of execution and the benefit of all exemption laws, to the extent permitted by
law, and any other protection granted by law to guarantors, now or hereafter in effect with respect to any action or proceeding
brought by Lender against it. Guarantor irrevocably waives all claims of waiver, release, surrender, alteration or compromise and
the right to assert against Lender any defenses, set-offs, counterclaims, or claims that Guarantor may have at any time against
Borrower or any other party liable to Lender.

 

9.7.          No
Third Party Beneficiary. Except as otherwise provided herein, Guarantor and Lender do not intend the benefits of this Guaranty
to inure to any third party and no third party (including Borrower) shall have any status, right or entitlement under this Guaranty.

 

9.8.          Partial
Invalidity. The invalidity or unenforceability of any one or more provisions of this Guaranty shall not render any other provision
invalid or unenforceable. In lieu of any invalid or unenforceable provision, there shall be added automatically a valid and enforceable
provision as similar in terms to such invalid or unenforceable provision as may be possible.

 

9.9.          Binding
Effect. The covenants, conditions, waivers, releases and agreements contained in this Guaranty shall bind, and the benefits
thereof shall inure to, the parties hereto and their respective heirs, executors, administrators, successors and permitted assigns;
provided, however, that this Guaranty cannot be assigned by Guarantor without the prior written consent of Lender, and any such
assignment or attempted assignment by Guarantor shall be void and of no effect with respect to the Lender.

 

9.10.         Modifications.
This Guaranty may not be supplemented, extended, modified or terminated except by an agreement in writing signed by the party against
whom enforcement of any waiver, change, modification or discharge is sought.

 

9.11.         Sales
or Participations. Lender may from time to time sell or assign the Note, in whole or in part, or grant participations in the
Note and/or the obligations evidenced thereby without the consent of Borrower or Guarantor (other than as provided in the Credit
Agreement), provided, however, Lender shall provide written notice to Borrower and Guarantor of any such assignment or grant of
participations. The holder of any such sale, assignment or participation, if the applicable agreement between Lender and such holder
so provides, shall be: (a) entitled to all of the rights, obligations and benefits of Lender (to the extent of such holder’s
interest or participation); and (b) deemed to hold and may exercise the rights of setoff or banker’s lien with respect to
any and all obligations of such holder to Guarantor (to the extent of such holder’s interest or participation), in each case
as fully as though Guarantor was directly indebted to such holder. Lender may in its discretion give notice to Guarantor of such
sale, assignment or participation; however, the failure to give such notice shall not affect any of Lender’s or such holder’s
rights hereunder.

 

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9.12.         MANDATORY
FORUM SELECTION. Any dispute arising under, relating to, or in connection with the
Agreement or related to any matter which is the subject of or incidental to the Agreement (whether or not such claim is based upon
breach of contract or tort) shall be subject to the exclusive jurisdiction and venue of the state and/or federal courts located
in Broward County, Florida.  This provision is intended to be a “mandatory” forum selection clause and governed
by and interpreted consistent with Florida law.

 

9.13.         Notices. Any notices, consents, waivers, or other communications required or permitted to be given under the terms of this
Guaranty must be in writing and in each case properly addressed to the party to receive the same in accordance with the information
below, and will be deemed to have been delivered: (i) if mailed by certified mail, return receipt requested, postage prepaid and
properly addressed to the address below, then three (3) business days after deposit of same in a regularly maintained U.S. Mail
receptacle; or (ii) if mailed by Federal Express, UPS or other nationally recognized overnight courier service, next business morning
delivery, then one (1) business day after deposit of same in a regularly maintained receptacle of such overnight courier; or (iii)
if hand delivered, then upon hand delivery thereof to the address indicated on or prior to 5:00 p.m., EST, on a Business Day. Any
notice hand delivered after 5:00 p.m., EST, shall be deemed delivered on the following Business Day. Notwithstanding the foregoing,
notice, consents, waivers or other communications referred to in this Guaranty may be sent by facsimile, e-mail, or other method
of delivery, but shall be deemed to have been delivered only when the sending party has confirmed (by reply e-mail or some other
form of written confirmation) that the notice has been received by the other party.  The addresses and facsimile numbers for
such communications shall be as set forth below, unless such address or information is changed by a notice conforming to the requirements
hereof. No notice to or demand on the Guarantor in any case shall entitle the Guarantor to any other or further notice or demand
in similar or other circumstances:

 

	If to the Guarantor:	2915 Waters Road, Suite 108
	 	Eagan, MN 55121
	 	Attention:  Kenneth Brimmer
	 	Facsimile: (952) 545-2795
	 	 
	With a copy to:	Maslon Edelman Borman and Brand
	(which shall not constitute notice)	3300 Wells Fargo Center
	 	90 South Seventh Street
	 	Minneapolis, MN 55402
	 	Attention: Doug Holod
	 	Facsimile: (612) 642-8313
	 	 
	If to Lender:	TCA Global Credit Master Fund, LP
	 	1404 Rodman Street
	 	Hollywood, FL 33020
	 	Attention: Robert Press
	 	Facsimile: (786) 323-1651

 

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	With a copy to:	Lucosky Brookman LLP
	(which shall not constitute notice)	101 Wood Avenue South, 5th Floor
	 	Woodbridge, NJ 08830
	 	Attention: Seth A. Brookman, Esq.
	 	Facsimile: (732) 395-4401

 

9.14.         Governing
Law. Except in the case of the Mandatory Forum Selection clause set forth in Section 9.12 hereof, this Guaranty shall
be governed by and construed in accordance with the substantive laws of the State of Nevada without reference to conflict of laws
principles.

 

9.15.         Joint
and Several Liability. The word “Guarantor” or “Guarantors” shall mean all of the undersigned persons,
if more than one, and their liability shall be joint and several. The liability of Guarantor shall also be joint and several with
the liability of any other guarantor under any other guaranty.

 

9.16.         Continuing
Enforcement. If, after receipt of any payment of all or any part of the Liabilities, Lender is compelled or reasonably agrees,
for settlement purposes, to surrender such payment to any person or entity for any reason (including, without limitation, a determination
that such payment is void or voidable as a preference or fraudulent conveyance, an impermissible setoff, or a diversion of trust
funds), then this Guaranty shall continue in full force and effect or be reinstated, as the case may be, and Guarantor shall be
liable for, and shall indemnify, defend and hold harmless Lender with respect to the full amount so surrendered. The provisions
of this Section shall survive the termination of this Guaranty and shall remain effective notwithstanding the payment of the Liabilities,
the cancellation, conversion or redemption of the Note, this Guaranty or any other Loan Document, the release of any security interest,
lien or encumbrance securing the Liabilities or any other action which Lender may have taken in reliance upon its receipt of such
payment. Any cancellation, release or other such action shall be deemed to have been conditioned upon any payment of the Liabilities
having become final and irrevocable.

 

9.17.         WAIVER
OF JURY TRIAL. GUARANTOR AGREES THAT, TO THE EXTENT PERMITTED BY APPLICABLE LAW, ANY SUIT, ACTION OR PROCEEDING, WHETHER CLAIM
OR COUNTERCLAIM, BROUGHT BY LENDER OR GUARANTOR ON OR WITH RESPECT TO THIS GUARANTY OR ANY OTHER LOAN DOCUMENT OR THE DEALINGS
OF THE PARTIES WITH RESPECT HERETO OR THERETO, SHALL BE TRIED ONLY BY A COURT AND NOT BY A JURY. LENDER AND GUARANTOR HEREBY KNOWINGLY,
VOLUNTARILY, INTENTIONALLY AND INTELLIGENTLY, AND WITH THE ADVICE OF THEIR RESPECTIVE COUNSEL, WAIVE, TO THE EXTENT PERMITTED BY
APPLICABLE LAW, ANY RIGHT TO A TRIAL BY JURY IN ANY SUCH SUIT, ACTION OR PROCEEDING. FURTHER, LENDER AND GUARANTOR WAIVE ANY RIGHT
THEY MAY HAVE TO CLAIM OR RECOVER, IN ANY SUCH SUIT, ACTION OR PROCEEDING, ANY SPECIAL, EXEMPLARY, PUNITIVE, CONSEQUENTIAL OR OTHER
DAMAGES OTHER THAN, OR IN ADDITION TO, ACTUAL DAMAGES. GUARANTOR ACKNOWLEDGES AND AGREES THAT THIS SECTION IS A SPECIFIC AND MATERIAL
ASPECT OF THIS GUARANTY AND THAT LENDER WOULD NOT PURCHASE THE NOTES IF THE WAIVERS SET FORTH IN THIS SECTION WERE NOT A PART OF
THIS GUARANTY.

 

[-Signature Page Follows-]

 

    	10

    	 

    

 

IN WITNESS WHEREOF,
Guarantor, intending to be legally bound, has duly executed and delivered this Guaranty Agreement as of the day and year first
above written.

 

	 	HDI PLASTICS, INC.
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

    	11NEITHER THE ISSUANCE AND SALE OF THE
SECURITIES REPRESENTED BY THIS WARRANT NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD,
TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT
OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL (WHICH COUNSEL SHALL BE SELECTED BY THE HOLDER), IN A GENERALLY ACCEPTABLE FORM,
THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING
THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT
SECURED BY THE SECURITIES.

 

HYPERTENSION
DIAGNOSTICS, INC.

 

COMMON
STOCK PURCHASE WARRANT

 

	Dated as of:  August 31, 2013	Exercise Amount: 5,224,438 shares of
	Date of Issuance: October 10, 2013	Common Stock
	Mandatory Redemption Date: **	 

Redemption Amount: As defined in the Credit Agreement

 

FOR VALUE RECEIVED, HYPERTENSION DIAGNOSTICS,
INC., a corporation incorporated under the laws of the State of Minnesota (the “Company”), hereby grants to
TCA GLOBAL CREDIT MASTER FUND, LP (the “Purchaser”), or its assigns (the Purchaser and/or any Person or Persons
to whom the Purchaser or an assignee has assigned this Common Stock Purchase Warrant (as amended, supplemented, revised, extended
and/or replaced from time to time, this “Warrant”) pursuant to Section 7 hereof is referred to as “Holder”),
the right to purchase from the Company at the Exercise Price (as defined below) 5,224,438 shares of the Common Stock (the “Warrant
Interest”).

 

This Warrant was issued pursuant to, and
is subject to, the terms of the Senior Secured Revolving Credit Facility Agreement, dated as of August 31, 2013 and effective as
of the issuance date hereof (as amended, restated, modified or supplemented from time to time, by and between the Company and the
Purchaser, the “Credit Agreement”). Capitalized terms used in this Warrant but not defined herein shall have
the meanings set forth in the Credit Agreement.

 

This Warrant is subject
to the following provisions:

 

Section 1.          Exercise
of Warrant.

 

1A.         Exercise
Period. Holder may exercise, in whole or in part, the purchase rights represented by this Warrant at any time and from time
to time after the Date of Issuance to and including the fifth (5th) anniversary of the Date of Issuance (the “Exercise
Period”), subject however to the Company’s right to repurchase this Warrant from the Holder for an amount equal
to the Redemption Amount.

 

    	 

    	 

    

 

1B.         Exercise
Procedure.

 

(i)          This
Warrant shall be deemed to have been exercised in respect of the Warrant Interest subject to such exercise when the Company has
received all of the following items (the “Exercise Time”):

 

(a)          this
Warrant;

 

(b)          a
completed Exercise Agreement, in the form substantially as set forth in Exhibit I hereto, executed by the Person exercising
all or part of the purchase rights represented by this Warrant;

 

(c)          any
of the following (1) a check payable to the Company in an amount equal to One United States Dollar (US$1.00) (the “Exercise
Price”), (2)  a written notice to the Company that Holder is exercising this Warrant (or a portion thereof) by authorizing
the Company to reduce the outstanding principal balance of any debt instrument of the Company held by Holder (including, without
limitation, any Note issued to and held by the Holder under the Credit Agreement) by an amount equal to the Exercise Price of the
Warrant Interest being purchased upon such exercise, or (3) any combination of the foregoing.

 

(ii)         If
certificated, certificates for the Warrant Interest issuable upon exercise of this Warrant shall be delivered by the Company to
Holder within five (5) Business Days after the date of the Exercise Time. Unless this Warrant has expired or one hundred percent
(100%) of the Warrant Interest issuable hereunder have been issued, the Company shall prepare a new Warrant, substantially identical
hereto, representing the rights formerly represented by this Warrant which have not expired or been exercised and shall, within
such five (5) Business Day period, deliver such new Warrant to the Person designated for delivery in the Exercise Agreement.

 

(iii)        The
Warrant Interest issuable upon the exercise of this Warrant shall be deemed to have been issued to Holder at the Exercise Time,
and Holder shall be deemed for all purposes to have become the record holder of such Warrant Interest at the Exercise Time regardless
of any failure of the Company to deliver to Holder or such other Person certificates for Warrant Interest issuable upon exercise
of this Warrant.

 

(iv)        The
issuance of the Warrant Interest upon exercise of this Warrant shall be made without charge to Holder for any issuance tax in respect
thereof or other cost incurred by the Company in connection with such exercise and the related issuance of the Warrant Interest.
The Warrant Interest issuable upon exercise of this Warrant shall, upon payment of the Exercise Price therefore, be duly authorized,
validly issued, fully paid and non-assessable and free from all taxes and liens.

 

(v)         The
Company shall assist and cooperate with Holder in making any required governmental filings or obtaining any governmental approvals
prior to or in connection with any exercise of this Warrant (including, without limitation, making any filings required to be made
by the Company).

 

    	2

    	 

    

 

(vi)        The
Company shall take all such actions as may be necessary to assure that all such Warrant Interest may be so issued without violation
of any applicable law or governmental regulation or any requirements of any domestic securities exchange.

 

1C.         Exercise
Agreement. The Exercise Agreement shall be substantially in the form set forth in Exhibit I hereto, except that if the
Warrant Interest is not to be issued in the name of the Person in whose name this Warrant is registered, the Exercise Agreement
shall also state the name of the Person to whom the Warrant Interest is to be issued, and if the number of Warrant Interest to
be issued does not include one hundred percent (100%) of the Warrant Interest issuable hereunder, it shall also state the name
of the Person to whom a new Warrant for the unexercised portion of the rights hereunder is to be delivered. Such Exercise Agreement
shall be dated the actual date of execution thereof.

 

1D.         Effect
of Exercise. Upon exercise of this Warrant, the Company shall stamp “EXERCISED” on the face of this Warrant and
return the original Warrant to Holder, it being understood that all of Holder's and the Company's rights and obligations under
this Warrant shall survive the exercise hereof.

 

1E.         Regulatory
Problem. In the event Holder determines that it has a Regulatory Problem (as defined below), Holder shall have the right to
transfer all or any portion of its interest in the Company without regard to any restriction on transfer (other than federal and
state securities laws restrictions) set forth in this Warrant or the Credit Agreement and the Company agrees to take all such actions
as are reasonably requested by Holder in order to (i) effectuate and facilitate any transfer by Holder of all or any portion
of its interests to any person designated by Holder (subject to compliance with applicable federal and state securities laws) or
(ii) to permit Holder (or any affiliate thereof) to exchange all or any portion of the Warrant Interest then held by, or issuable
to, it for interests of a class of non-voting interests of the Company, which non-voting interests shall be identical in all respects
to the Warrant Interest, except such interests shall be non-voting and shall be convertible into voting interests on such terms
as are requested by such Holder in light of regulatory considerations then prevailing. The Company agrees to enter into such additional
agreements, adopt such amendments hereto and to the organizational documents of the Company and to take such additional actions
as are reasonably requested by Holder in order to effectuate the intent of the foregoing. For purposes hereof, a “Regulatory
Problem” means any set of facts or circumstances wherein Holder is not entitled to hold, or exercise any significant
right with respect to, the Warrant Interest or would be subject to withholding of interest on any debt instrument, additional material
regulatory or legal requirements if it holds Warrant Interest.

 

1F.         Limitations.
The Company shall not affect any exercise of this Warrant, and the Holder shall not have the right to exercise one hundred percent
(100%) of the Warrant Interest to the extent that after giving effect to Exercise Agreement submitted by the Holder, the Holder
(together with its Affiliates and any Persons acting as a group together with the Holder or any of the its Affiliates) would beneficially
own shares of Common Stock in excess of the Beneficial Ownership Limitation (as defined herein). To ensure compliance with this
restriction, prior to delivery of the Exercise Agreement, the Holder shall have the right to request that the Company provide to
the Holder a written statement of the percentage ownership of the Company's Common Stock that would be beneficially owned by the
Holder and its Affiliates in the Company if the Holder exercised such portion of the Warrant then intended to be exercised by the
Holder. The Company shall, within two (2) Business Days of such request, provide the Holder with the requested information in a
written statement, and the Holder shall be entitled to rely on such written statement from the Company in delivering its Exercise
Agreement and ensuring that its ownership of the Company's Common Stock is not in excess of the Beneficial Ownership Limitation.
The restriction described in this Section may be waived by the Holder, in whole or in part, upon notice from the Holder to the
Company to increase such percentage.

 

    	3

    	 

    

 

For purposes of this
Warrant, the “Beneficial Ownership Limitation” shall be 4.99% of the number of shares of Common Stock outstanding
immediately after giving effect to the issuance of shares of Common Stock issuable upon exercise of this Warrant. The limitations
contained in this Section shall apply to a successor holder of this Warrant. For purposes of this Warrant, “Person”
means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization
or a government or any department or agency thereof.

 

Section 2.          
Company’s Obligation and Rights to Repurchase the Warrant and Warrant Interest. The Holder shall have the right, exercisable
on or following the Mandatory Redemption Date, to cause the Company to purchase the entire amount of the Warrant held by such Holder,
or all the Warrant Interest that have been issued to such Holder upon the exercise of this Warrant at a price equal to the Redemption
Amount. Such right shall be exercisable by the Holder by delivery of written notice to the Company specifying the date on which
such repurchase shall occur. On the date of purchase, the Holder shall surrender this Warrant to the Company against payment of
the Redemption Amount by wire transfer to an account designated by the Holder.

 

Section 3.          No
Voting Rights; Limitations of Liability. This Warrant shall not entitle the holder hereof to any voting rights or other rights
as an interest holder of the Company. No provision hereof, in the absence of affirmative action by Holder to purchase Warrant Interest,
and no enumeration herein of the rights or privileges of Holder shall give rise to any liability of such holder for the Exercise
Price of Warrant Interest issuable by exercise hereof or as an interest holder of the Company.

 

Section 4.          Warrant
Transferable. Subject to the transfer conditions referred to in the legend endorsed hereon, this Warrant and all rights
hereunder are transferable to any Person, in whole or in part, without charge to Holder, upon surrender of this Warrant with properly
executed evidence of assignment or transfer.

 

Section 5.          Warrant
Exchangeable for Different Denominations. This Warrant is exchangeable, upon the surrender hereof by Holder at the principal
office of the Company, for new warrants of like tenor representing in the aggregate the purchase rights hereunder, and each of
such new warrants shall represent such portion of such rights as is designated by Holder at the time of such surrender. The date
the Company initially issues this Warrant shall be deemed to be the “Date of Issuance” hereof regardless of
the number of times new certificates representing the unexpired and unexercised rights formerly represented by this Warrant shall
be issued.

 

Section 6.          Replacement.
Upon receipt of evidence reasonably satisfactory to the Company (an affidavit of Holder shall be satisfactory) of the ownership
and the loss, theft, destruction or mutilation of any certificate evidencing this Warrant, the Company shall execute and deliver,
in lieu thereof, a new certificate of like kind representing the same rights represented by such lost, stolen, destroyed or mutilated
certificate and dated the date of such lost, stolen, destroyed or mutilated certificate.

 

    	4

    	 

    

 

 

Section 7.          Notices.
Except as otherwise provided herein, the Company waives all notices and demands in connection with the enforcement of Holder’s
rights hereunder. All notices, requests, demands and other communications provided for hereunder shall be in writing, sent by certified
or registered mail, postage prepaid, by facsimile, telegram or delivered in person, and addressed as follows:

 

	If to the Company:	2915 Waters Road, Suite 108
	 	Eagan, MN 55121
	 	Attention:  Kenneth Brimmer
	 	Facsimile: (952) 545-2795
	 	 
	With a copy to:	Maslon Edelman Borman & Brand, LLP
	(which shall not constitute notice)	3300 Wells Fargo Center
	 	90 South Seventh Street
	 	Minneapolis, MN 55402
	 	Attention: Doug Holod
	 	Facsimile: (612) 642-8313
	 	 
	If to the Holder:	TCA Global Credit Master Fund, LP
	 	1404 Rodman Street
	 	Hollywood, FL 33020
	 	Attention: Robert Press
	 	Facsimile: (786) 323-1651
	 	 
	With a copy to:	Lucosky Brookman LLP
	(which shall not constitute notice)	101 Wood Avenue South, 5th Floor
	 	Woodbridge, NJ 08830
	 	Attention: Seth A. Brookman, Esq.
	 	Facsimile: (732) 395-4401

 

or, as to each party,
at such other address as shall be designated by such party in a written notice to each other party complying as to delivery with
the terms of this subsection. No notice to or demand on the Company in any case shall entitle the Company to any other or further
notice or demand in similar or other circumstances.

 

Section 8.          Amendment
and Waiver. Any term, covenant, agreement or condition in this Warrant may be amended, or compliance therewith may be waived
(either generally or in a particular instance and either retroactively or prospectively), only by a written instrument or written
instruments executed by the Company and the Holder. Each amendment, modification, termination or waiver shall be effective only
in the specific instance and for the specific purpose for which it was given. No notice to or demand on the Company or Holder in
any case shall entitle the Company or Holder to any other or further notice or demand in similar or other circumstances. Any amendment,
modification, termination, waiver or consent effected shall be binding upon Holder and the Company.

 

    	5

    	 

    

 

Section 9.          MANDATORY
FORUM SELECTION. TO INDUCE HOLDER TO PURCHASE THE WARRANT, THE COMPANY IRREVOCABLY AGREES THAT ANY DISPUTE ARISING UNDER, RELATING
TO, OR IN CONNECTION WITH, DIRECTLY OR INDIRECTLY, THIS WARRANT OR RELATED TO ANY MATTER WHICH IS THE SUBJECT OF OR INCIDENTAL
TO THIS WARRANT (WHETHER OR NOT SUCH CLAIM IS BASED UPON BREACH OF CONTRACT OR TORT) SHALL BE SUBJECT TO THE EXCLUSIVE JURISDICTION
AND VENUE OF THE STATE AND/OR FEDERAL COURTS LOCATED IN BROWARD COUNTY, FLORIDA. THIS PROVISION IS INTENDED TO BE A “MANDATORY”
FORUM SELECTION CLAUSE AND GOVERNED BY AND INTERPRETED CONSISTENT WITH FLORIDA LAW. THE COMPANY HEREBY CONSENTS TO THE EXCLUSIVE
JURISDICTION AND VENUE OF ANY STATE OR FEDERAL COURT HAVING ITS SITUS IN SAID COUNTY, AND WAIVES ANY OBJECTION BASED ON FORUM NON
CONVENIENS. THE COMPANY HEREBY WAIVES PERSONAL SERVICE OF ANY AND ALL PROCESS AND CONSENT THAT ALL SUCH SERVICE OF PROCESS MAY
BE MADE BY CERTIFIED MAIL, RETURN RECEIPT REQUESTED, DIRECTED TO THE COMPANY AS SET FORTH HEREIN IN THE MANNER PROVIDED BY APPLICABLE
STATUTE, LAW, RULE OF COURT OR OTHERWISE.

 

Section 10.         Governing
Law. Except in the case of the Mandatory Forum Selection Clause, which clause shall be governed and interpreted in accordance
with Florida law, this WARRANT shall be delivered and accepted in and shall be deemed to be A CONTRACT made under and governed
by the internal laws of the State of Nevada, and for all purposes shall be construed in accordance with the laws of such State,
without giving effect to the choice of law provisions of such State.

 

Section 11.         Headings.
Section and subsection headings are included herein for convenience of reference only and shall not constitute a part of this Agreement
for any other purposes or be given substantive effect.

 

Section 12.         Severability.
The invalidity, illegality, or unenforceability in any jurisdiction of any provision under this Warrant shall not affect or impair
the remaining provisions in this Warrant.

 

[signature page follows]

 

    	6

    	 

    

 

IN WITNESS WHEREOF,
the Company has caused this Warrant to be signed and attested by its duly authorized officers and to be dated the Date of Issuance
hereof.

 

	 	HYPERTENSION DIAGNOSTICS, INC.
	 	 	 
	 	By:	 
	 	Name:	Kenneth W. Brimmer
	 	Title:	Chief Executive Officer

 

    	 

    	 

    

 

EXHIBIT I

 

EXERCISE AGREEMENT

 

	To:	Dated:

 

The undersigned, pursuant
to the provisions set forth in the attached Warrant hereby agrees to subscribe for the purchase of           %
of the Warrant Interest covered by such Warrant and makes payment herewith in full therefor in accordance with the terms of such
Warrant at the price per share provided by such Warrant.

 

	 	Signature	 
	 	 	 
	 	Address

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