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Exhibit 10.28    
    

GT Equipment Technologies, Inc.
  243 Daniel Webster Highway

Merrimack, NH 03054 

August 8,
2006 

	Mr. Ernest L. Godshalk	 	 
	675B Hale St.	 	Via e-mail and FedEx
	Beverly, MA 01915	 	 

Dear
Mr. Godshalk: 

        On
behalf of GT Equipment Technologies, Inc. ("GT Equipment"), I wish to convey our appreciation for your decision to join the Board of Directors of GT Equipment. We are very
excited about our growth opportunities, and are pleased that you have decided to help us reach those objectives. 

        According
to its bylaws, the business and affairs of GT Equipment shall be managed by or under the direction of the Board of Directors. Our bylaws also state that Directors shall be
elected annually and shall hold office until the next annual meeting. 

        The
Board of Directors will meet on a regular basis, approximately six times each year, in addition to the Annual Meeting. Special meetings may be called periodically by the President of
GT Equipment, Thomas Zarrella. 

        Your
compensation as a Director will be $30,000 per year, payable quarterly in advance. The company will also reimburse you for any travel or other incidental costs associated with your
tenure on the Board. Additionally, concurrent with your execution and delivery of this letter and the other documents described below, you will be granted an option to buy 11,520 shares of the common
stock of GT Equipment at an exercise price of $28.14 per share. 

        Enclosed
in this package are the following documents related to your stock option award: 

	1)
	The
Stock Option Agreement between you and the Company. Please sign this agreement to make the grant of your option effective, and return a signed copy to
Howard Smith.

	2)
	A
copy of the GT Equipment Stock Option Plan for your records.

	3)
	A
copy of the Employee Stockholders Agreement. As a condition to the exercise of your option, you will be required to become party to this agreement. 

        Please
note that your option is not exercisable at this time. Please read carefully the enclosed Stock Option Plan and Stock Option Agreement, which set forth the complete terms of your
stock option grant, including the vesting schedule (25% on each of the four anniversaries of the date hereof), conditions to exercise, limitations on transfer and more. 

        Please
also review, sign, and return to my attention the enclosed Confidentiality Agreement. 

        Please confirm your acceptance of this position by signing in the space provided below and faxing it to my attention at
(603) 598-0430. Again, thank you for your interest in and commitment to GT Equipment. 

	Sincerely,	 	 
	

/s/ Kedar P. Gupta
 Kedar Gupta

Chief Executive Officer	
 	

 

cc:
Richard Landers, GFI Energy Ventures, LLC 

	 	 	Accepted:
	

 	
 	

/s/ E Godshalk
 Ernest L. Godshalk
	

 	
 	

Date:	

15 Aug 06

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Exhibit 10.29    
    

[GT
Solar International. Inc. Letterhead] 

April 4,
2007

Ernest
L. Godshalk

6758 Hale Street

Beverly, MA 01915

Dear
Ernie: 

        As
discussed, this letter amends certain provisions of the letter agreement dated August 8, 2006 between you and GT Solar Incorporated, formerly GT Equipment
Technologies, Inc., ("Letter Agreement"). 

        First,
you have agreed that you will no longer serve on the Board of GT Solar Incorporated, but will instead serve on the Board of Directors of GT Solar International, Inc., the
parent of GT Solar Incorporated, and that the Letter Agreement is amended accordingly. 

        Second,
the compensation provisions of the Letter Agreement are amended to reflect the following schedule of annual fees for Board and Committee service, to a maximum total annual
compensation of $75,000: 

Board
fee: $30,000

Audit Committee Chair fee: $15,000

Supplemental pre-IPO Audit Committee Chair fee: $15,000

Compensation Committee fee: $5,000

Supplemental pre-IPO Compensation Committee fee: $10,000

Governance and Nominating Committee fee: $5,000

Supplemental pre-IPO Governance and Nominating Committee fee: $10,000 

Total
annual fees (maximum): $75,000 

        We
have agreed that this schedule will apply to your Board and Committee service in 2006, but will be prorated to 50% to reflect your length of service in 2006, and that your total
compensation for service during 2006 will be $37,500. The Company will send you a check for the difference between that compensation and amounts already paid to you. Fees for 2007 will be paid in
semi-annual installments, in January and July. 

        Finally,
we have agreed that, in the event of a Change in Control of the Company (as defined in your Stock Option Agreement) resulting in your removal from the Board of Directors of GT
Solar International, Inc, within one year following a Change in Control, the vesting of stock options granted to you will accelerate and become fully vested and exercisable on the effective date of
your removal from the Board. 

        Please
confirm your acceptance of the foregoing amendments to the Letter Agreement by signing in the space provided below. Again, thank you for your commitment to our company. 

	Sincerely,	 	 
	

/s/ J. Bradford Forth
 J. Bradford Forth

Chairman of the Board of Directors	
 	

 

cc:
Richard Landers 

	 	 	Accepted:
	

 	
 	

/s/ E Godshalk
 Ernest L. Godshalk
	

 	
 	

Date:	

4 April 2007

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Exhibit 10.30    
    

[GT
Solar International Letterhead] 

May 9,
2008

J.
Michal Conaway

One Gentle Breeze

Newport Coast, CA 92657-1640

Dear
Mr. Conaway: 

        On
behalf of GT Solar International, Inc. ("GT Solar"), I wish to convey our appreciation for your decision to join the Board of Directors of GT Solar. We are very excited about
our growth opportunities, and are pleased that you have decided to help us reach our objectives. 

        According
to its bylaws, the business and affairs of GT Solar shall be managed by or under the direction of the Board of Directors. Our bylaws also state that Directors shall be elected
annually and shall hold office until the next annual meeting. 

        The
Board of Directors will meet on a regular basis, approximately four times each year, in addition to the Annual Meeting. Special meetings may be called periodically by the Chairman of
the Board or the President and CEO of GT Solar, Thomas Zarrella. 

        Your
compensation as a director will be $30,000 per year, payable quarterly in advance. In addition, you shall be eligible for additional fees in conjunction with your service on
committees of the Board of Directors. It is anticipated that you will serve on the Board's Audit Committee and at least one additional Board Committee. A fee schedule outlining the fees for service on
the Board and various committees is attached as Exhibit A. All Board fees are subject to an aggregate cap of $75,000 annually per Board member. You shall also be eligible for reimbursement for
reasonable and customary food, travel and lodging expenses incurred by you in connection with your service as a member of the Board. 

        As
part of your Board membership, you will receive 1,000 restricted stock units, 500 of which will vest on the first anniversary of the grant and the remaining 500 of which will vest on
the second anniversary of the grant. However, the restricted stock units shall vest for only so long as you serve as a member of the Board. 

        Notwithstanding
the foregoing, in the event of the termination of your service as a result of a change in control of GT Solar, the restricted stock units shall vest according to the
following schedule: (i) if the termination occurs on or before the one year anniversary of your joining the Board, 500 of the restricted stock units shall vest, and (ii) if the
termination occurs during the 12 months immediately following the one year anniversary of your joining the Board, the remaining 500 restricted stock units shall vest. Finally, any grant to you
shall be subject to the terms of a Restricted Stock Unit Agreement which shall be furnished upon issuance of the grant. 

        To
confirm compliance with the requirements of Sarbanes-Oxley and NASDAQ listing rules, this offer letter is conditioned upon your providing to GT Solar a completed copy of the Directors
and Officers Questionnaire, a copy of which is enclosed, and GT Solar's acceptance of your responses to the questionnaire. 

        We
are truly excited about the prospect of your joining our Board. I am confident that your work will prove instrumental in helping us build a world-class company. Please confirm your
acceptance by 

 

executing
the enclosed copies of this letter and the enclosed Confidentiality Agreement, retaining one of each for your records, and returning one copy of each to GT Solar, attention Edwin Lewis, in
the envelope provided. As always, please feel free to contact me should you wish to discuss any aspect of your service on GT Solar's Board of Directors. 

	Sincerely,	 	 
	

/s/ J. Bradford Forth
	
 	

 
	

J. Bradford Forth

Chairman	
 	

 
	

cc: E. Lewis	
 	

 

	 	 	Accepted:
	

 	
 	

/s/ J. Michal Conaway
 J. Michal Conaway
	

 	
 	

Date:	

16 May 2008

2

 
EXHIBIT A  

 GT Solar International, Inc.

Board Service Fee Schedule  

	Service Type
 
	 	Member Fee

(Annualized)
	 	Chairman Fee

(Annualized)

	Board Member Service 	 	$	30,000	 	 	Not Applicable
	

Audit Committee 	
 	
$	

7,500	
 	
$	

15,000
	

Supplemental pre-IPO Audit Committee 	
 	
$	

7,500	
 	
$	

15,000
	

Compensation Committee 	
 	
$	

5,000	
 	
$	

10,000
	

Supplemental pre-IPO Compensation Committee 	
 	
$	

5,000	
 	
$	

10,000
	

Governance & Nominating Committee 	
 	
$	

5,000	
 	
$	

10,000
	

Supplemental pre-IPO Governance & Nominating Committee 	
 	
$	

5,000	
 	
$	

10,000

Notes:  

	1.
	 The annual maximum annual total combined fee for GT Solar International, Inc. Board Service is $75,000.

 
	2.
	 Fees are disbursed proportionately on a quarterly basis gross, (less applicable taxes).

3

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Exhibit 10.30

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