SEC FORM 4/A SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
GONSER CHRISTOPHER W

(Last) (First) (Middle)
300 THROCKMORTON ST
STE. 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
KMG CHEMICALS INC [ KMG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
VP of Human Resources
3. Date of Earliest Transaction (Month/Day/Year)
10/31/2018
4. If Amendment, Date of Original Filed (Month/Day/Year)
11/02/2018
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 10/31/2018 F 1,586(1) A $75.02 39,014 D
Common Stock 10/31/2018 F 204(1) A $75.02 8,701 I by Deferred Compensation Plan
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. To reflect that no shares were withheld for tax withholding.
Roger C. Jackson POA from Christopher Gonser 11/08/2018
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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Power of Attorney
Know all by these presents, that the undersigned hereby constitutes and 
appoints Roger Jackson, General Counsel of KMG Chemicals, Inc. (the 
"Company"), the undersigned's true and lawful attorney-in-fact to:
(1)	execute for and on behalf of the undersigned, in the undersigned's 
capacity as an officer of the Company, Forms 3, 4 and 5 in accordance 
with Section 16(a) of the Securities Exchange Act of 1934, as amended, 
and the rules thereunder;
(2)	do and perform any and all acts for and on behalf of the undersigned 
which may be necessary or desirable to complete and execute any such 
Form 3, 4 or 5 and timely file such form with the United States 
Securities and Exchange Commission and any stock exchange or similar 
authority; and 
(3)	take any other action or any type whatsoever in connection with the 
foregoing which, in the opinion of such attorney-in-fact, may be of 
benefit to, in the best interest of, or legally required by, the 
undersigned, it being understood that the documents executed by such 
attorney-in-fact on behalf of the undersigned pursuant to this Power of 
Attorney shall be in such form and shall contain such terms and 
conditions as such attorney-in-fact may approve in such attorney-in-
fact's discretion.
The
 undersigned hereby grants to each attorney-in-fact full power and 
authority to do and perform any and every act and thing whatsoever requisite, 
necessary or proper to be done in the exercise of any of the rights and 
powers herein granted, as fully to all intents and purposes as the 
undersigned might or could do if personally present, with full power of 
substitution or revocation, hereby ratifying and confirming all that such 
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall 
lawfully do or cause to be done by virtue of this power of attorney and the 
rights and powers herein granted.  The undersigned acknowledges that the 
foregoing attorney-in-fact, in serving in such capacity at the request of the 
undersigned, are not assuming, nor is the Company assuming any of the 
undersigned's responsibilities to comply with Section 16 of the Securities 
Exchange Act of 1934.
This Power of Attorney shall remain in full force and effect until the 
undersigned is no longer required to file Forms 3, 4 and 5 with respect to 
the undersigned's holdings of and transaction in securities issued by the 
Company, unless earlier revoked by the undersigned in a signed writing 
delivered to the foregoing attorneys-in fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be 
executed as of the 1st day of March, 2018.

/s/ Marvin T. Green, III	 
Marvin T. Green, III
L:\Corporate Records\Directors and Officers\Power of Attorney, Green.docx