<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: right"><FONT STYLE="font-size: 10pt">EXHIBIT
10.1</FONT></P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 10pt">THIRD AMENDMENT
TO LOAN AGREEMENT</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">THIS
THIRD AMENDMENT TO LOAN AGREEMENT (this “<U>Amendment</U>”) is made as of December 12, 2016 (the “<U>Third Amendment
Date</U>”) among <B>INTERNATIONAL BANK OF COMMERCE</B>, a Texas state banking association (together with its successors
and assigns, “<U>Lender</U>”), <B>GREYSTONE LOGISTICS, INC.</B>, an Oklahoma corporation (“<U>Greystone Logistics</U>”),
and <B>GREYSTONE MANUFACTURING, L.L.C.</B>, an Oklahoma limited liability company (“<U>Greystone Manufacturing</U>”
and, together with Greystone Logistics, the “<U>Borrowers</U>”) and (a) amends the Loan Agreement (Revolving Loan
and Equipment Term Loan) dated as of January 31, 2014, as previously amended by the First Amendment to Loan Agreement dated January
7, 2016, and the Second Amendment to Loan Agreement dated May 31, 2016, each among Borrowers and Lender (as so amended, the “<U>Loan
Agreement</U>”), and (b) ratifies and amends the other Loan Documents to which the Borrowers are a party as described below.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">Borrowers
and Lender agree as follows:</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">1.
<U>Definitions</U>. Capitalized terms used but not defined in this Amendment have the meanings given to them in the Loan Agreement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">2.
<U>Amendments to Loan Agreement</U>.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(a)
Lender and Borrowers agree that the maturity date of the Revolving Loan is extended one year, until January 31, 2019. Accordingly,
the reference to “January 31, 2018” in <U>Section 2.3(a)</U> of the Loan Agreement is amended to read “January
31, 2019.”</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(b)
Lender and Borrowers agree that Borrowers are not required to maintain the minimum Debt Service Coverage Ratio required by <U>Section
8.3</U> of the Loan Agreement until the Rolling Testing Period ending February 29, 2018 (and each Rolling Testing Period thereafter).
Accordingly, <U>Section 8.3</U> of the Loan Agreement is amended and restated in its entirety to read as follows:</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: 0"><FONT STYLE="font-size: 10pt"><B>Section
8.3. Debt Service Coverage Ratio.</B> For each Rolling Testing Period ending on or after February 29, 2018, Borrowers shall maintain
on a consolidated basis a Debt Service Coverage Ratio of at least 1:25:1.00, calculated as of the last date of the Rolling Testing
Period.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">3. <U>Waiver
of Event of Default</U>. Lender waives any Default or Event of Default arising solely from the Borrowers’ failure to
maintain the Debt Service Coverage Ratio required by <U>Section 8.3</U> of the Loan Agreement for the Rolling Testing
Period ending on November 30, 2016, and all prior Rolling Testing Periods.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">4.
<U>Effect of this Amendment</U>. Except as expressly provided above, this Amendment is not a waiver of, amendment to, consent
to or modification of (a) any term or provision of any of the Loan Documents except as specifically set forth above, and this
Amendment, or (b) any event, condition, or transaction on the part of any Person.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">5.
<U>Ratification of Loan Documents</U>. The Loan Agreement and the other Loan Documents remain in full force and effect as amended
by this Amendment. Each Borrower (a) ratifies and confirms all of the respective Loan Documents to which it is a party as valid,
subsisting and continuing in full force and effect, as modified by this Amendment, and (b) agrees that all references to the Loan
Agreement in the Loan Documents to which it is a party are amended to mean the Loan Agreement as amended by this Amendment.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">6.
<U>Conditions</U>. The effectiveness of this Amendment is subject to satisfaction of the following conditions precedent, each
of which exist for Lender’s sole benefit and may be waived by Lender only (in its sole discretion):</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(a)
<U>Documents</U>. Lender’s receipt of the following, each properly executed, each dated the Third Amendment Date (or, in
the case of certificates of governmental officials, a recent date before the date of the Amendment) and each in form and substance
satisfactory to Lender and its legal counsel:</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(i)
this Amendment;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(ii)
the Second Amended and Restated Revolving Note;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(iii)
a Guarantor Ratification of the Amended and Restated Combined Limited Guaranty Agreement dated January 7, 2016, <FONT STYLE="color: windowtext">in
favor of Lender signed by Kruger and Rosene;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(iv)
a ratification of and amendment to the Mortgage executed by Greystone Real Estate;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(v)
one or more certificates of resolutions or other action, incumbency certificates and/or other certificates as Lender requires
with accompanying governing documents for the Borrowers and Greystone Real Estate and actions and resolutions of the Borrowers
and Greystone Real Estate in connection with this Amendment; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(vi)
all other documents and instruments requested by Lender.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(b)
<U>Fees and Expenses</U>. If required by Lender, Borrowers’ shall pay all out-of-pocket expenses required under <U>Section
8</U> of this Amendment. If Lender elects, in its sole discretion, to waive collection of any fees and expenses as a condition
to the effectiveness of this Amendment, Borrowers will remain obligated to pay those fees and expenses, which are due and payable
on the Third Amendment Date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">7.
<U>Representations and Warranties</U>.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(a)
Each Borrower represents and warrants to the Lender that as of the date of this Amendment:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(i)
its representations and warranties in the Loan Documents to which it is a party are true and correct in all material respects
as though made on Third Amendment Date, except to the extent that any of them speak to a different specific date, in which case
they are true and correct in all material respects as of the earlier date;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(ii)
as of the Third Amendment Date, (A) no Default or Event of Default exists, and (B) no Default or Event of Default exists under,
and as defined in, the Greystone Real Estate Loan Agreement;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(iii)
its execution, delivery and performance of this Amendment and all other Loan Documents executed by it in connection with this
Amendment have been duly authorized by all necessary corporate or limited liability company action, as applicable, and do not
and will not contravene the terms of any of its organizational documents, any law or any indenture, loan or credit agreement,
or any other material agreement or instrument to which it is a party or by which it is bound or to which it or its properties
are subject;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(iv)
no authorizations, approvals or consents of, and no filings or registrations with, any governmental authority or any other Person
are necessary for the execution, delivery or performance by such Borrower of this Amendment or the other Loan Documents executed
by it in connection with this Amendment, or for the validity or enforceability thereof; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(v)
this Amendment and each other Loan Document to which it is a party constitutes such Borrower’s legal, valid and binding
obligations, enforceable against it in accordance with its terms, in all cases except as limited by applicable bankruptcy, insolvency,
reorganization, moratorium or other similar laws affecting the enforcement of creditors’ rights generally or by equitable
principles relating to enforceability, and by judicial discretion regarding the enforcement of or any applicable laws affecting
remedies (whether considered in a court of law or a proceeding in equity).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">8.
<U>Fees and Expenses</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(a)
As additional consideration for Lender entering into this Amendment and extending the Revolving Loan, Borrowers shall pay a documentation
fee of $250.00.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(b)
In accordance with <U>Section 10.5</U> of the Loan Agreement (and without in any way limiting its provisions), Borrowers shall
pay all reasonable out-of-pocket expenses incurred by the Lender, including the reasonable fees, charges and disbursements of
Lender’s counsel (determined on the basis of such counsel’s generally applicable rates) in connection with (i) this
Amendment, the preparation of this Amendment and any other Loan Documents, and any filings or other documents or instruments required
in connection with the preparation of this Amendment or the other Loan Documents, and (ii) the enforcement, collection or protection
of its rights in connection with the Loan Documents, including all such out-of-pocket expenses incurred during any workout, restructuring
or negotiations in respect the Loan Documents and this Agreement. Expenses being reimbursed by Borrowers under this Section include,
without limitation, costs and expenses incurred in connection with appraisals, field examinations, insurance reviews, flood determinations,
lien and title searches and title insurance, and recording and filing fees or taxes.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">9.
<U>Events of Default Unaffected</U>. Nothing in this Amendment is a waiver of any Default or Event of Default, or of any right
or remedy available to the Lender by reason of the occurrence or existence of any Default or Event of Default.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">10.
<U>Releases</U>. Each Borrower, for itself and on behalf of all its predecessors, successors, assigns, agents, employees, representatives,
officers, directors, managers, members, shareholders, beneficiaries, trustees, administrators, subsidiaries, Affiliates, employees,
servants and attorneys (collectively the “<U>Releasing Parties</U>”), releases and forever discharges Lender and its
successors, assigns, partners, directors, officers, agents, attorneys, and employees from any and all claims, demands, cross-actions,
controversies, causes of action, damages, rights, liabilities and obligations, at law or in equity whatsoever, known or unknown,
now held, owned or possessed by any or all of the Releasing Parties or that any or all of the Releasing Parties hold or claim
to hold in the future as a result of any actions or inactions occurring on or before the First Amendment Date, under common law
or statutory right, arising directly or indirectly out of out of the Loans, any of the Loan Documents, or any of the documents,
instruments or any other transactions relating thereto or the transactions contemplated thereby. Each Borrower understands and
agrees that this is a full, final and complete release and agrees that this release may be pleaded as an absolute and final bar
to any or all suit or suits pending or that are filed or prosecuted in the future by any of the Releasing Parties, or anyone claiming
by, through or under any of the Releasing Parties, in respect of any of the matters released hereby, and that no recovery on account
of the matters described herein may hereafter be had from anyone whomsoever, and that the consideration given for this release
is not an admission of liability.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">11.
<U>Governing Law; Miscellaneous</U>. <FONT STYLE="font-variant: small-caps">T</FONT>his Amendment is governed by the Loan Agreement,
including the rules of construction provided in <U>Section 1.2</U> and the miscellaneous provisions of <U>Article X</U> thereof.
Unless stated otherwise, (a) the singular number includes the plural and <I>vice versa</I> and words of any gender include each
other gender, in each case, as appropriate, (b) headings and captions may not be construed in interpreting provisions, and (c)
this Amendment may be executed in any number of counterparts with the same effect as if all signatories had signed the same document,
and all of those counterparts must be construed together to constitute the same document.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 10pt">[<FONT STYLE="font-variant: small-caps"><I>Signature
Pages Attached</I>]</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 10pt; font-variant: small-caps"> </FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">THIS
THIRD AMENDMENT TO LOAN AGREEMENT is made as of the date first indicated on the first page.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

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<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"><B>“BORROWERS”</B></FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 50%"> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 3%"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 47%"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"><B>GREYSTONE LOGISTICS, INC.</B>,</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif">an Oklahoma corporation</TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="text-decoration: none; font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Warren F.
    Kruger</I></FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">Warren F. Kruger, President/CEO</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"><B>GREYSTONE MANUFACTURING,
L.L.C.</B>,</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif">an Oklahoma limited liability company</TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="text-decoration: none; font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Warren F.
    Kruger</I></FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">Warren F. Kruger, Manager</FONT></TD>
    </TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-size: 10pt"></FONT></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-variant: small-caps"><I>Signature
Page</I></FONT></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-variant: small-caps"><I>Third
Amendment to Loan Agreement</I></FONT></P>



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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"> </FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">THIS
THIRD AMENDMENT TO LOAN AGREEMENT is made as of the date first indicated on the first page.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-size: 10pt"><B> </B></FONT></P>

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    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"><B>“LENDER”</B></FONT></TD>
    </TR>
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    <TD STYLE="width: 50%"> </TD>
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="width: 47%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"><B>INTERNATIONAL BANK OF COMMERCE</B>,</FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif">a Texas state banking association</TD></TR>
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    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    </TR>
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    <TD STYLE="padding-bottom: 1.5pt"> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="text-decoration: none; font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Andrew J.
    Levinson</I></FONT></TD>
    </TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD> </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt"> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">Andrew J. Levinson, President</FONT></TD>
    </TR>
</TABLE>
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                                         Page</I></FONT></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: small-caps 10pt Times New Roman, Times, Serif"><I>Third
Amendment to Loan Agreement</I></FONT></P>


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