Document:

EX-10.40

 Exhibit 10.40 

FIRST AMENDMENT TO THE 

CONSULTING AGREEMENT 
 THIS FIRST
AMENDMENT TO THE CONSULTING AGREEMENT (“Amendment No. 1”) is made effective as of December 19, 2014 (the “Amendment No. 1 Effective Date”) by and between Epizyme, Inc., with a principal business address
at 400 Technology Square, 4th Floor, Cambridge, Massachusetts 02139 (“Epizyme”) and Eric Hedrick (“Consultant”). 

WHEREAS, Epizyme and Consultant entered into that certain Consulting Agreement dated October 27, 2014 (the “Agreement”);
and 
 WHEREAS, the parties desire to amend the terms and conditions of the Agreement as described below. 

NOW, THEREFORE, in consideration of the premises and mutual covenants herein contained, the parties hereto agree as follows: 

 

	 	1.	Section 2 of the Agreement is hereby amended by extending the Consultation Period (as defined in the Agreement) so that it continues until March 31, 2015. 

 

	 	2.	Continued Effectiveness. Except as provided herein, all other terms and conditions of the Agreement shall remain unchanged and in full force and effect. 

 

	 	3.	Capitalized Terms. Capitalized terms used in the Amendment No. 1 that are not otherwise defined herein shall have the meanings set forth in the Agreement. 

 

	 	4.	Counterparts. This Amendment No. 1 may be executed in one or more counterparts, each of which will be deemed an original, and all of which together will be deemed to be one and the same instrument. A
facsimile or pdf copy of this Amendment No. 1, including the signature pages, will be deemed an original. 

 IN WITNESS WHEREOF,
each party has caused this Amendment No. 1 to be executed by its duly authorized representative as of the Amendment No. 1 Effective Date. 
  

									
	EPIZYME, INC.				CONSULTANT
					
	By:		/s/ Robert Gould				By:		/s/ Eric Hedrick
	Name:		Robert Gould, Ph.D.				Print Name: Eric Hedrick, M.D.
	Title:		President and CEOExhibit 10.4

 

 

 

March 9, 2015

 

Robert W. Rigdon

11410 Long Pine Drive

Houston, Texas 77077

 

		Re:	Exchange of Salary for Option Grant

 

Dear Robert:

 

This letter describes
your election to reduce your monthly base salary paid by Synthesis Energy Systems, Inc. (the “Company”) from $25,000
to $16,500 for the six month period from April 1, 2015 through September 30, 2015, for a total reduction of $51,000. In exchange
for such election, you will receive a grant of a non-qualified stock option (the “Option”) exercisable for 100,000
shares of the common stock of the Company.

 

The number of shares
underlying the Option was determined by dividing $51,000 (the amount of your salary reduction) by $0.51, which is the fair value
of the Option as determined using the Black-Scholes valuation method typically utilized by the Company. The exercise price of the
Option ($0.76) was determined based on the fair market value of the common stock on the date of approval by the Compensation Committee
of the board of directors of the Company (March 9, 2015). The Option will vest in equal monthly installments over six months. The
term of the Option is ten years from the award date. The vested portion of the Option will not be forfeitable upon your termination
for any reason, but the entire unvested portion would be forfeited. All other terms are as set forth in the form of the Option
grant agreement attached hereto as Exhibit A.

 

By execution of this
letter, you acknowledge and agree that, notwithstanding anything to the contrary in your employment agreement with the Company
dated April 8, 2011 (as amended, the “Employment Agreement”), you will only be entitled to $16,500 of your monthly
base salary for the period from April 1, 2015 through September 30, 2015. This shall not affect your right to any other compensation
from the Company as contemplated by the Employment Agreement or any other terms thereof.

 

You further acknowledge
and agree that (i) you are an “accredited investor” within the meaning of Rule 501(a) of Regulation D of the Securities
Act of 1933, as amended, (ii) you are familiar with the general risks relating to an investment in the Company’s common stock,
(iii) you have carefully considered this letter and have, to the extent you believe such discussion necessary, discussed this letter
with your professional, legal, tax, accounting and financial advisors, (iv) you have had the right to request copies of any documents,
records, and books pertaining to the Company that you deem necessary to consider the transactions contemplated by this letter,
(v) you have had a reasonable opportunity to ask questions of, and receive answers from, the Company concerning this letter and
all such questions have been answered to your full satisfaction, (vi) you have adequate means of providing for your current financial
needs and contingencies and (vii) you are able to bear the economic risks of the transactions contemplated by this letter.

 

    	 

    	 

    

 

If you have any questions
regarding this matter, please let us know.

 

 

	 	SYNTHESIS ENERGY SYSTEMS, INC.
	 	 
	 	 
	 	By: 	         /s/ Roger Ondreko
	 	 	Roger Ondreko
Chief Financial Officer, Controller and Secretary

 

 

 

	
	ACKNOWLEDGED AND AGREED

as of March 9, 2015

	 
	 
	         /s/ Robert Rigdon
	Robert RigdonExhibit 10.6

 

NONSTATUTORY STOCK OPTION AGREEMENT

SYNTHESIS ENERGY SYSTEMS, INC.

AMENDED & RESTATED 2005 INCENTIVE PLAN

 

This Stock Option Agreement
(the “Agreement”), is entered into effective as of _____ 2015 between Synthesis Energy Systems, Inc., a Delaware corporation
(the “Company”), and ______ (the “Optionee”).

 

WITNESSETH:

 

WHEREAS, the Company
has adopted the Synthesis Energy Systems, Inc. Amended & Restated 2005 Incentive Plan (as amended from time to time, the “Plan”),
to encourage officers, employees, outside directors and consultants of the Company and its Subsidiaries to acquire or increase
their ownership interest in the Company and to provide a means whereby they may develop a sense of proprietorship and personal
involvement in the development and financial success of the Company, and to encourage them to remain with and devote their best
efforts to the business of the Company thereby advancing the interests of the Company and its stockholders; and

 

WHEREAS, the Plan provides
that such selected individuals may be granted a certain number of Options (as defined in the Plan) to purchase shares of the Common
Stock, par value $.01 per share (“Common Stock”), of the Company to provide them with an ownership interest in the
growth of the Company; and

 

WHEREAS, the Optionee
has been selected to receive such award.

 

NOW, THEREFORE, in
consideration of the premises, the terms and conditions set forth herein, the mutual benefits to be gained by the performance thereof
and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree
as follows:

 

1.             Grant of Option. Pursuant to the Plan, the Company grants Optionee an option (the “Option” or
“Stock Option”) to purchase ____ shares (the “Optioned Shares”) of Common Stock at an Option Price equal
to $___ per share. The Date of Grant of this Stock Option is _____, 2015. The “Option Period” shall commence on the
Date of Grant and shall expire on the date immediately preceding the tenth (10th) anniversary of the Date of
Grant. The Stock Option is a Nonstatutory Stock Option.

 

2.             Subject to Plan. The Stock Option and its exercise are subject to the terms and conditions of the Plan, and
the terms of the Plan shall control to the extent not otherwise inconsistent with the provisions of this Agreement. The capitalized
terms used herein that are defined in the Plan shall have the same meanings assigned to them in the Plan. The Stock Option is subject
to any rules promulgated pursuant to the Plan by the Committee.

 

3.             Vesting: Time of Exercise. Except as specifically provided in this Agreement and subject to certain restrictions
and conditions set forth in the Plan, the Stock Option shall be vested and exercisable as follows (it being understood that the
right to purchase Option Shares shall be cumulative so that the Optionee may purchase on or after any such anniversary and during
the remainder of the Option Period those quantifies of Option Shares which the Optionee was entitled to purchase but did not purchase
during any preceding period or periods):

 

    	 

    	 

    

 

With respect to _____ of the total Optioned
Shares, the Stock Option shall vest and become exercisable on _________, 2016 provided the Optionee is continuously employed by
(or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary from the Date
of Grant through that date.

 

With respect to _____ of the total Optioned
Shares, the Stock Option shall vest and become exercisable on _________, 2017 provided the Optionee is continuously employed by
(or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary from the Date
of Grant through that date.

 

With respect to _____ of the total Optioned
Shares, the Stock Option shall vest and become exercisable on _________, 2018 provided the Optionee is continuously employed by
(or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary from the Date
of Grant through that date.

 

With respect to ______ of the total Optioned
Shares, the Stock Option shall vest and become exercisable on _________, 2019 provided the Optionee is continuously employed by
(or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary on that date.

 

4.             Term; Forfeiture. In the event of Optionee’s termination of employment (or consulting agreement in the
event Optionee is a consultant) with the Company and its Subsidiaries (in each case, a “Termination”) for any reason
other than for Cause (as defined below) or Optionee’s death or Disability, the Option outstanding on such date of Termination,
to the extent vested on such date, may be exercised by Optionee (or, in the event of Optionee’s subsequent death, by Optionee’s
Heir (as defined below)) within three (3) months following such Termination, but not thereafter. However, in no event shall the
Option be exercisable after the tenth (10th) anniversary of the Date of Grant. To the extent the Option is not vested
on Optionee’s date of Termination, the Option shall automatically lapse and be canceled unexercised as of such date.

 

In the event Optionee’s
employment or consulting agreement is terminated for Cause, any Option granted pursuant to this Agreement whether vested or unvested
shall be forfeited upon the date of Optionee’s Termination. Termination for “Cause” shall be termination resulting
from (i) the continuing and material failure by the Optionee to fulfill the Optionee’s duties as an employee or consultant
of the Company or willful misconduct or gross neglect in the performance of such duties, (ii) committing fraud, misappropriation
or embezzlement in the performance of the Optionee’s duties as an employee or consultant of the Company, or (iii) the Optionee’s
commission of an felony for which the Optionee is convicted and which, as determined in good faith by the Company, constitutes
a crime involving moral turpitude. For the purposes of the definition of Cause, the term “Company” includes Subsidiaries
of the Company.

 

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In the event of Optionee’s
Termination by reason of death or Disability, the Option shall be fully vested on such date of termination and may be exercised
by Optionee or, in the event of Optionee’s death, by the person to whom Optionee’s rights shall pass by will or the
laws of descent and distribution (“Heir”), at any time within the twelve (12) month period beginning on Optionee’s
Termination, but not thereafter. However, in no event shall the Option be exercisable after the tenth (10th) anniversary
of the Date of Grant. For the purposes of this Agreement, Disability shall mean disability as defined in any employment agreement
between Optionee and the Company or, if there is no such definition or agreement, shall mean Optionee’s inability, due to
physical or mental incapacity, to substantially perform his duties and responsibilities for a period of ninety (90) days during
any twelve-month period as determined by the Committee. Optionee agrees to submit to any examination that is necessary for a determination
of Disability and agrees to provide any information necessary for a determination of Disability, including any information that
is protected by the Health Insurance Portability and Accountability Act.

 

Notwithstanding the
above, if the Optionee has an employment agreement or offer letter with the Company, the terms of such employment agreement shall
govern the terms and conditions of the term and forfeiture of the Optioned Shares to the extent it is inconsistent with the terms
and conditions provided herein.

 

5.             Who May Exercise. Subject to the terms and conditions set forth in Sections 3 and 4 above, during the lifetime
of the Optionee, the Stock Option may be exercised only by the Optionee, or by the Optionee’s guardian or personal or legal
representative (in the event of his or her Disability or by a broker dealer subject to Section 2.3 of the Plan).

 

6.             No Fractional Shares. The Stock Option may be exercised only with respect to full shares, and no fractional
share of stock shall be issued.

 

7.             Manner of Exercise. Subject to such administrative regulations as the Committee may from time to time adopt,
the Option may be exercised by the delivery of written notice to the Committee or designated Company representative setting forth
the number of shares of Common Stock with respect to which the Option is to be exercised, the date of exercise thereof (the “Exercise
Date”) which shall be at least three (3) days after giving such notice unless an earlier time shall have been mutually agreed
upon. On the Exercise Date, the Optionee shall deliver to the Company consideration with a value equal to the total Option Price
of the shares to be purchased, payable to the Company in full in either: (i) in cash, or (ii) subject to prior approval by the
Committee in its discretion, by withholding Shares which otherwise would be acquired on exercise having an aggregate Fair Market
Value at the time of exercise equal to the total Option Price, or (iii) subject to prior approval by the Committee in its discretion,
by a combination of (i), and (ii) above.

 

The Committee, in its
discretion, also may allow the Option Price to be paid with such other consideration as shall constitute lawful consideration for
the issuance of Shares (including, without limitation, effecting a “cashless exercise” with a broker of the Option),
subject to applicable securities law restrictions and tax withholdings, or by any other means which the Committee determines to
be consistent with the Plan’s purpose and applicable law. A “cashless exercise” of an Option is a procedure by
which a broker provides the funds to the Optionee to effect an Option exercise, to the extent consented to by the Committee in
its discretion. At the direction of the Optionee, the broker will either (i) sell all of the Shares received when the Option is
exercised and pay the Optionee the proceeds of the sale (minus the Option Price, withholding taxes and any fees due to the broker)
or (ii) sell enough of the Shares received upon exercise of the Option to cover the Option Price, withholding taxes and any fees
due the broker and deliver to the Optionee (either directly or through the Company) a stock certificate for the remaining Shares.

 

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As soon as practicable
after receipt of a written notification of exercise and full payment, the Company shall deliver, or cause to be delivered, to or
on behalf of the Optionee, in the name of the Optionee or other appropriate recipient, Share certificates for the number of Shares
purchased under the Option. Such delivery shall be effected for all purposes when the Company or a stock transfer agent of the
Company shall have deposited such certificates in the United States mail, addressed to Optionee or other appropriate recipient.

 

If the Optionee fails
to pay for any of the Shares specified in such notice or fails to accept delivery thereof, then the Option, and right to purchase
such Shares may be forfeited by the Company.

 

8.             Nonassignability. The Stock Option is not assignable or transferable by the Optionee except by will or by
the laws of descent and distribution or pursuant to a domestic relations order that would qualify as a qualified domestic relations
order as defined in Section 414(p) of the Code, if such provision were applicable to the Stock Option and as otherwise permitted
under Section 4.2 of the Plan.

 

9.             Rights as Stockholder. The Optionee will have no rights as a stockholder with respect to any shares covered
by the Stock Option until the issuance of a certificate or certificates to the Optionee for the Optioned Shares. The Optioned Shares
shall be subject to the terms and conditions of this Agreement and Plan regarding such Shares. Except as otherwise provided in
Section 10 hereof, no adjustment shall be made for dividends or other rights for which the record date is prior to the issuance
of such certificate or certificates.

 

10.           Adjustment of Number of Optioned Shares and Related Matters. The number of shares of Common Stock covered
by the Stock Option, and the Option Prices thereof, shall be subject to adjustment in accordance with Section 4.5 of the Plan.

 

11.           Nonstatutory Stock Option. The Stock Option shall not be treated as an Incentive Stock Option.

 

12.           Community Property. Each spouse individually is bound by, and such spouse’s interest, if any, in any
Shares is subject to, the terms of this Agreement. Nothing in this Agreement shall create a community property interest where none
otherwise exists.

 

13.           Optionee’s Representations. Notwithstanding any of the provisions hereof, the Optionee hereby agrees
that he will not exercise the Stock Option granted hereby, and that the Company will not be obligated to issue any shares to the
Optionee hereunder, if the exercise thereof or the issuance of such shares shall constitute a violation by the Optionee or the
Company of any provision of any law or regulation of any governmental authority or Company policies, or the rules of the stock
exchange on which the Common Stock is listed. Optionee acknowledges and agrees that if he or she is an officer, director or key
employee of the Company, Optionee will be subject to the Company’s securities trading policy as it may be in effect from
time to time and which may “black out” periods of time during which the Stock Option may not be exercised or which
may also limit the amount of Shares that may be purchased or sold to a number that is less than requested by the Optionee. Any
determination in this connection by the Company shall be final, binding, and conclusive. The obligations of the Company and the
rights of the Optionee are subject to all applicable laws, rules, and regulations, rules of the stock exchange on which the Common
Stock is listed and policies of the Company.

 

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14.           Investment Representation. The Optionee represents and warrants to the Company that all Common Stock which
may be purchased hereunder will be acquired by the Optionee for investment purposes for his own account and not with any intent
for resale or distribution in violation of federal or state securities laws.

 

15.           Optionee’s Acknowledgments. The Optionee acknowledges receipt of a copy of the Plan, and represents
that he or she is familiar with the terms and provisions thereof, and hereby accepts this Option subject to all the terms and provisions
thereof. The Optionee hereby agrees to accept as binding, conclusive, and final all decisions or interpretations of the Committee,
the Company or the Board, as appropriate, upon any questions arising under the Plan or this Agreement.

 

16.           Governing Law. This Agreement shall be governed by, construed, and enforced in accordance with the laws of
the State of Delaware.

 

17.           No Right to Continue Service or Employment. Nothing herein shall be construed to confer upon the Optionee
the right to continue in the employ or to provide services to the Company, its Affiliates or any Parent or Subsidiary or their
Affiliates, whether as an employee or as a consultant or as an Outside Director, or interfere with or restrict in any way the right
of the Company or any of the other foregoing entities to discharge the Optionee as an employee, consultant or Outside Director
at any time.

 

18.           Legal Construction. In the event that any one or more of the terms, provisions, or agreements that are contained
in this Agreement shall be held by a court of competent jurisdiction to be invalid, illegal, or unenforceable in any respect for
any reason, the invalid, illegal, or unenforceable term, provision, or agreement shall not affect any other term, provision, or
agreement that is contained in this Agreement and this Agreement shall be construed in all respects as if the invalid, illegal,
or unenforceable term, provision, or agreement had never been contained herein.

 

19.           Covenants and Agreements as Independent Agreements. Each of the covenants and agreements that is set forth
in this Agreement shall be construed as a covenant and agreement independent of any other provision of this Agreement. The existence
of any claim or cause of action of the Optionee against the Company, whether predicated on this Agreement or otherwise, shall not
constitute a defense to the enforcement by the Company of the covenants and agreements that are set forth in this Agreement.

 

20.           Entire Agreement. This Agreement together with the Plan supersede any and all other prior understandings and
agreements, either oral or in writing, between the parties with respect to the subject matter hereof and constitute the sole and
only agreements between the parties with respect to the said subject matter. All prior negotiations and agreements between the
parties with respect to the subject matter hereof are merged into this Agreement. Each party to this Agreement acknowledges that
no representations, inducements, promises, or agreements, orally or otherwise, have been made by any party or by anyone acting
on behalf of any party, which are not embodied in this Agreement or the Plan and that any agreement, statement or promise that
is not contained in this Agreement or the Plan shall not be valid or binding or of any force or effect.

 

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21.           Parties Bound. The terms, provisions, and agreements that are contained in this Agreement shall apply to,
be binding upon, and inure to the benefit of the parties and their respective heirs, executors, administrators, legal representatives,
and permitted successors and assigns, subject to the limitation on assignment expressly set forth herein. No person or entity shall
be permitted to acquire any Optioned Shares without first executing and delivering an agreement in the form satisfactory to the
Company making such person or entity subject to the restrictions on transfer contained herein.

 

22.           Modification. No change or modification of this Agreement shall be valid or binding upon the parties unless
the change or modification is in writing and signed by the parties. Notwithstanding the preceding sentence, the Company may amend
the Plan or revoke this Stock Option to the extent permitted by the Plan.

 

23.           Headings. The headings that are used in this Agreement are used for reference and convenience purposes only
and do not constitute substantive matters to be considered in construing the terms and provisions of this Agreement.

 

24.           Gender, Number and Term Optionee. Words of any gender used in this Agreement shall be held and construed to
include any other gender, and words in the singular number shall be held to include the plural, and vice versa, unless the context
requires otherwise. Whenever the term “Optionee” is used herein under circumstances applicable to any other person
or persons to whom this award may be assigned in accordance with the provisions of Paragraph 8, the term “Optionee”
shall be deemed to include such person or persons.

 

25.           Independent Legal and Tax Advice. Optionee acknowledges that the Company has advised Optionee to obtain independent
legal and tax advice regarding the grant and exercise of the Option and the disposition of any Shares acquired thereby.

 

26.           Notice. Any notice required or permitted to be delivered hereunder shall be deemed to be delivered only when
actually received by the Company or by the Optionee, as the case may be, at the addresses set forth below, or at such other addresses
as they have theretofore specified by written notice delivered in accordance herewith:

 

Notice to the Company shall be addressed
and delivered as follows:

 

Synthesis Energy Systems, Inc.

Three Riverway, Suite 300

Houston, Texas 77056

Attn:Corporate
Secretary

Fax: (713)
579-0610

 

Notice to the Optionee shall be addressed
and delivered to Optionee’s address as set forth in the Company’s records.

 

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27.           Tax Requirements.

 

Tax Withholding. This Option
is subject to and the Company shall have the power and the right to deduct or withhold, or require the Optionee to remit to the
Company, an amount sufficient to satisfy federal, state, and local taxes, domestic or foreign, required by law or regulation to
be withheld with respect to any taxable event arising as a result of the Plan and this Option.

 

Share Withholding. With
respect to tax withholding required upon the exercise of Stock Options or upon any other taxable event arising as a result of the
Stock Option, Optionee may elect, subject to the approval of the Committee in its discretion, to satisfy the withholding requirement,
in whole or in part, by having the Company withhold Shares having a Fair Market Value on the date the tax is to be determined equal
to the minimum statutory total tax which could be imposed on the transaction. All such elections shall be made in writing, signed
by the Optionee, and shall be subject to any restrictions or limitations that the Committee, in its discretion, deems appropriate.
Any fraction of a Share required to satisfy such obligation shall be disregarded and the amount due shall instead be paid in cash
by the Optionee.

 

IN WITNESS WHEREOF, the Company has caused
this Agreement to be executed by its duly authorized officer, and the Optionee, to evidence his consent and approval of all the
terms hereof, has duly executed this Agreement, as of the date specified in Section 1 hereof.

 

 

	 	COMPANY:
	 	SYNTHESIS ENERGY SYSTEMS, INC.
	 	 
	 	 
	 	By: 	    
	 	Name:  	Roger Ondreko
	 	Title:  	Chief Financial Officer, and Secretary
	 	 	 
	 	
	 	OPTIONEE:
	 	 	 
	 	 	 
	 	By: 	   
	 	Name	 
	 	Title:	 

 

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