Document:

Exhibit 4.50

 

LETTER OF UNDERTAKING

IT IS HEREBY UNDERTAKEN THAT:

 

Xiaoyun Chen, a citizen of the People’s Republic of China
(hereinafter referred to as “China”), with the Chinese ID card number: [Redacted], holds 5% equity interest of Shenzhen
Zhongguan Agricultural Group Co., Ltd. (hereinafter referred to as “Shenzhen Zhongguan”);

 

The above shareholder hereby irrevocably undertakes to Agria
Holdings (Shenzhen) Co., Ltd. (hereinafter referred to as “Agria Holdings”) as follows:

 

Once I, as a shareholder of Shenzhen Zhongguan, receive any
dividends, bonuses or other distributions from Shenzhen Zhongguan, I shall transfer all such incomes remaining after the deduction
of any taxes payable thereon, without compensation, to Agria Holdings and/or any person designated by it unless this is restricted
by laws, regulations or judicial proceedings.

 

	 	Undertaken by (Signature):
	 	 
	 	/s/ Xiaoyun Chen
	 	April 5, 2017

 

    	 	1/1Exhibit 4.51

 

POWER
OF ATTORNEY

 

I, Xiaoyun Chen, a
citizen of the People’s Republic of China (hereinafter referred to as “China”), with the Chinese ID card
number: [Redacted], am a shareholder of Shenzhen Zhongguan Agricultural Group Co., Ltd. (hereinafter referred to as “Shenzhen
Zhongguan”), holding 5% equity interest of Shenzhen Zhongguan. I hereby irrevocably authorize Mr. Youlong Lai to exercise
the following rights within the term of this Power of Attorney:

 

I authorize Mr. Youlong
Lai (passport number: [Redacted]) to represent me with full power to exercise any shareholder’s rights, including voting
rights, to which I shall be entitled under the laws of China and the Articles of Association of Shenzhen Zhongguan at shareholders’
meetings of Shenzhen Zhongguan, including but without limited to execute legal documents in relation to the sale or transfer of
all or part of my equity interest in Shenzhen Zhongguan, and to act as my authorized representative at shareholders’ meetings
of Shenzhen Zhongguan to designate and appoint a general manager of Shenzhen Zhongguan.

 

The above authorization
and designation are conditional upon Mr. Youlong Lai being a director of Agria Holdings (Shenzhen) Co., Ltd. (hereinafter referred
to as “Agria Holdings”) and Agria Holdings granting its consent to the above authorization and designation.
Once Mr. Youlong Lai leaves Agria Holdings or Agria Holdings notifies me of the termination of the above authorization and designation,
I will immediately withdraw the authorization and designation made herein, and will designate and authorize any other personnel
nominated by Agria Holdings to exercise all my shareholder’s rights, including voting rights, to which I shall be entitled
at shareholders’ meetings of Shenzhen Zhongguan.

 

During the validly
existing period of Shenzhen Zhongguan, except for the early termination of the Exclusive Call Option Contract jointly signed by
me, Agria Holdings and Shenzhen Zhongguan for any reasons, this Power of Attorney shall remain effective throughout the operating
period of Shenzhen Zhongguan from the date hereof.

 

	 	/s/ Xiaoyun Chen
	 	 
	 	April 5, 2017Exhibit 4.52

 

STATEMENT
OF SPOUSE

 

Name: Youlong Lai

ID Card Number: [Redacted]

 

This is to confirm that I, as the spouse
of Xiaoyun Chen, hereby unconditionally and irrevocably represent to Shenzhen Zhongguan Agricultural Group Co., Ltd. and Agria
Holdings (Shenzhen) Co., Ltd. that:

 

the equity interest held by Xiaoyun Chen
in Shenzhen Shenzhen Zhongguan Agricultural Group Co., Ltd. and any dividends, bonuses or other distributions received by her in
respect of the equity interest are the personal property of Xiaoyun Chen, and shall not be the husband-and-wife common property
of Xiaoyun Chen and myself at any time.

 

Signature: /s/ Youlong Lai

 

Date: April 5, 2017

 

    	 	1/1Blueprint

  Exhibit 10.1

 

IRREVOCABLE PROXY

 

 

 

FOR AND IN CONSIDERATION OF being deemed
an "Exempt Person" in accordance with the process set forth in
Section 28 and the
definition of "Exempt Person" set forth in Section 1.7 of the Rights
Agreement, dated as of May 12, 2017, entered into between Solitron
Devices, Inc. (the "Company") and Continental Stock Transfer &
Trust Company, the undersigned hereby agrees as
follows:

 

1.           Grant
of Proxy. The undersigned hereby appoints Tim Eriksen as its
true and lawful attorney and proxy, for and in the undersigned's
name, place and stead to vote any and all shares of the Company now
or hereafter owned by the undersigned, with all the powers which
the undersigned would be entitled to exercise, on the election of
directors presented for a vote of the stockholders of the Company,
in favor of the director nominees recommended by the Board of
Directors of Solitron for the next two annual meetings of the
stockholders of the Company, or at any adjournments thereof, or by
written consent without such meetings. This proxy is irrevocable,
is coupled with an interest and shall survive any transfer of the
Shares.

 

2.           Term
and Termination. This Agreement shall remain in full force
and effect until such time as the second annual meeting of
stockholders of the Company from the date hereof concludes and the
final voting results from such meeting have been determined and
accepted by the Company.

 

Upon
the occurrence of the foregoing event, this Agreement shall
terminate, the proxy granted pursuant to Section 1 shall be
terminated and shall thereafter be null and void, and the Shares
shall be released from the terms of this Agreement.

 

IN WITNESS WHEREOF, the undersigned,
intending to be legally bound, has executed this Irrevocable Proxy
as of the 12th day of October, 2018.

 

 

	
 

	

OLESEN VALUE FUND L.P.

 

By: 
/s/ Christian
Olesen

Name:
Christian Olesen

            Olesen
Capital Management LLC

            Olesen
Value Fund L.P.

Title:  
Managing MemberEX-10.1

 Exhibit 10.1 

SECOND AMENDMENT AGREEMENT 
 This
SECOND AMENDMENT AGREEMENT (this “Amendment”) is made as of the 10th day of October, 2018 among: 

(a)    COMPUTER TASK GROUP, INCORPORATED, a New York corporation (the “Borrower”); 

(b)    the Lenders, as defined in the Credit Agreement, as hereinafter defined; and 

(c)    KEYBANK NATIONAL ASSOCIATION, a national banking association, as the administrative agent for the Lenders under the
Credit Agreement (the “Administrative Agent”). 
 WHEREAS, the Borrower, the Administrative Agent and the Lenders are parties to
that certain Credit and Security Agreement, dated as of December 21, 2017 (as amended and as the same may from time to time be further amended, restated or otherwise modified, the “Credit Agreement”); 

WHEREAS, the Borrower, the Administrative Agent and the Lenders desire to amend the Credit Agreement to modify certain provisions thereof;

 WHEREAS, each capitalized term used herein and defined in the Credit Agreement, but not otherwise defined herein, shall have the meaning
given such term in the Credit Agreement; and 
 WHEREAS, unless otherwise specifically provided herein, the provisions of the Credit
Agreement revised herein are amended effective as of the date of this Amendment; 
 NOW, THEREFORE, in consideration of the premises and of
the mutual covenants herein and for other valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Borrower, the Administrative Agent and the Lenders agree as follows: 

1.    Amendment of Borrowing Covenant Provisions. Section 5.8 of the Credit Agreement is hereby amended to
delete subsection (n) therefrom and to insert in place thereof the following: 
 (n)    Indebtedness
of Foreign Subsidiaries, not covered by the Indebtedness listed above, in an aggregate principal amount for all Foreign Subsidiaries not to exceed Ten Million Dollars ($10,000,000) at any time outstanding; and 

(o)    other Indebtedness not covered by the Indebtedness listed above, in an aggregate principal amount
for all Companies not to exceed Five Million Dollars ($5,000,000) at any time outstanding. 
 2.    Closing
Deliveries. Concurrently with the execution of this Amendment, the Borrower shall: 
 (a)    cause
each Guarantor of Payment to execute the attached Guarantor Acknowledgment and Agreement; and 

(b)    pay all legal fees and expenses of the Administrative Agent in connection with this Amendment and
any other Loan Documents. 

 3.    Representations and Warranties. The Borrower hereby
represents and warrants to the Administrative Agent and the Lenders that (a) the Borrower has the legal power and authority to execute and deliver this Amendment; (b) the officers executing this Amendment have been duly authorized to
execute and deliver the same and bind the Borrower with respect to the provisions hereof; (c) the execution and delivery hereof by the Borrower and the performance and observance by the Borrower of the provisions hereof do not violate or
conflict with the Organizational Documents of the Borrower or any law applicable to the Borrower or result in a breach of any provision of or constitute a default under any other agreement, instrument or document binding upon or enforceable against
the Borrower; (d) no Default or Event of Default exists, nor will any occur immediately after the execution and delivery of this Amendment or by the performance or observance of any provision hereof; (e) each of the representations and
warranties contained in the Loan Documents is true and correct in all material respects as of the date hereof as if made on the date hereof, except to the extent that any such representation or warranty expressly states that it relates to an earlier
date (in which case such representation or warranty is true and correct in all material respects as of such earlier date); (f) the Borrower is not aware of any claim or offset against, or defense or counterclaim to, the Borrower’s obligations
or liabilities under the Credit Agreement or any other Related Writing; and (g) this Amendment constitutes a valid and binding obligation of the Borrower in every respect, enforceable in accordance with its terms. 

4.    Waiver and Release. The Borrower, by signing below, hereby waives and releases the Administrative Agent, and
each of the Lenders, and their respective directors, officers, employees, attorneys, affiliates and subsidiaries, from any and all claims, offsets, defenses and counterclaims, that, in each case, may have arisen through the date hereof in connection
with the Loan Documents or the transactions contemplated thereby, such waiver and release being with full knowledge and understanding of the circumstances and effect thereof and after having consulted legal counsel with respect thereto. 

5.     References to Credit Agreement and Ratification. Each reference to the Credit Agreement that is made in the
Credit Agreement or any other Related Writing shall hereafter be construed as a reference to the Credit Agreement as amended hereby. Except as otherwise specifically provided herein, all terms and provisions of the Credit Agreement are confirmed and
ratified and shall remain in full force and effect and be unaffected hereby. This Amendment is a Loan Document. 

6.    Counterparts. This Amendment may be executed in any number of counterparts, by different parties hereto in
separate counterparts and by facsimile or other electronic signature, each of which, when so executed and delivered, shall be deemed to be an original and all of which taken together shall constitute but one and the same agreement. 

  
 2 

 7.    Headings. The headings, captions and arrangements used in
this Amendment are for convenience only and shall not affect the interpretation of this Amendment. 

8.    Severability. Any provision of this Amendment that shall be prohibited or unenforceable in any jurisdiction
shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof or affecting the validity or enforceability of such provision in any other jurisdiction. 

9.    Governing Law. The rights and obligations of all parties hereto shall be governed by the laws of the State of
New York. 
 [Remainder of page intentionally left blank.] 

  
 3 

 JURY TRIAL WAIVER. THE BORROWER, THE ADMINISTRATIVE AGENT AND THE LENDERS, TO THE
EXTENT PERMITTED BY LAW, EACH HEREBY WAIVES ANY RIGHT TO HAVE A JURY PARTICIPATE IN RESOLVING ANY DISPUTE, WHETHER SOUNDING IN CONTRACT, TORT OR OTHERWISE, AMONG THE BORROWER, THE ADMINISTRATIVE AGENT AND THE LENDERS, OR ANY THEREOF, ARISING OUT OF,
IN CONNECTION WITH, RELATED TO, OR INCIDENTAL TO THE RELATIONSHIP ESTABLISHED AMONG THEM IN CONNECTION WITH THIS AMENDMENT OR ANY NOTE OR OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH OR THE TRANSACTIONS
RELATED THERETO. 
 IN WITNESS WHEREOF, the parties have executed and delivered this Amendment as of the date first set forth above. 

 

			
	COMPUTER TASK GROUP, INCORPORATED
		
	By:	 	 /s/ John M. Laubacker

		 	John M. Laubacker
		 	 Chief Financial Officer, Treasurer, and

Executive Vice President

	
	 KEYBANK NATIONAL ASSOCIATION

    as the Administrative Agent and as a Lender

		
	By:	 	 /s/ Katherine C. Meadows

		 	Senior Vice President
		 	Katherine C. Meadows

  
 Signature Page 1 of 2 to

 Second Amendment Agreement 

 
			
	 MANUFACTURERS AND TRADERS

      TRUST COMPANY

		
	By:	 	 /s/ Michael D. Pick

		 	Michael D. Pick
		 	Vice President

  
 Signature Page 2 of 2 to

 Second Amendment Agreement 

 GUARANTOR ACKNOWLEDGMENT AND AGREEMENT 

Each of the undersigned consents and agrees to and acknowledges the terms of the foregoing Second Amendment Agreement dated as of
October 10, 2018. The undersigned further agree that the obligations of the undersigned pursuant to the Guaranty of Payment executed by the undersigned are hereby ratified and shall remain in full force and effect and be unaffected hereby.

 Each of the undersigned hereby waives and releases the Administrative Agent and the Lenders and their respective directors, officers,
employees, attorneys, affiliates and subsidiaries from any and all claims, offsets, defenses and counterclaims of any kind or nature, absolute and contingent, that, in each case, may have arisen through the date hereof in connection with the Loan
Documents or the transactions contemplated thereby, such waiver and release being with full knowledge and understanding of the circumstances and effect thereof and after having consulted legal counsel with respect thereto. 

JURY TRIAL WAIVER. EACH OF THE UNDERSIGNED, TO THE EXTENT PERMITTED BY LAW, HEREBY WAIVES ANY RIGHT TO HAVE A JURY PARTICIPATE IN
RESOLVING ANY DISPUTE, WHETHER SOUNDING IN CONTRACT, TORT OR OTHERWISE, AMONG THE BORROWER, THE ADMINISTRATIVE AGENT, THE LENDERS AND THE UNDERSIGNED, OR ANY THEREOF, ARISING OUT OF, IN CONNECTION WITH, RELATED TO, OR INCIDENTAL TO THE RELATIONSHIP
ESTABLISHED AMONG THEM IN CONNECTION WITH THIS GUARANTOR ACKNOWLEDGMENT AND AGREEMENT, THE AMENDMENT OR ANY NOTE OR OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH OR THE TRANSACTIONS RELATED THERETO. 

 

			
	 CTG OF BUFFALO, INC.
 COMPUTER TASK
GROUP
       INTERNATIONAL, INC.

		
	By:	 	 /s/ John M. Laubacker

		 	John M. Laubacker
		 	President

 Signature Page to 

Guarantor Acknowledgment and Agreement

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