FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Sichko William J. Jr.
 2. Date of Event Requiring Statement (Month/Day/Year)
09/29/2017		 3. Issuer Name and Ticker or Trading Symbol
PQ Group Holdings Inc. [PQG]
(Last)
(First)
(Middle)
C/O PQ GROUP HOLDINGS INC., 300 LINDENWOOD DRIVE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
See Remarks
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

MALVERN, PA 19355		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 45,334
D
 
Common Stock 585,042
I
By family trust (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Option (Right to Buy) 05/04/2016 05/04/2026 Common Stock 9,516 $ 8.04 D  
Option (Right to Buy) 12/01/2016 05/04/2026 Common Stock 9,516 $ 8.04 D  
Option (Right to Buy) 12/01/2017 05/04/2026 Common Stock 9,516 $ 8.04 D  
Option (Right to Buy) 12/01/2018 05/04/2026 Common Stock 9,516 $ 8.04 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Sichko William J. Jr.
C/O PQ GROUP HOLDINGS INC.
300 LINDENWOOD DRIVE
MALVERN, PA 19355		       See Remarks  

Signatures

/s/ Joseph S. Koscinski, attorney-in-fact 09/29/2017
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) Represents shares of common stock held by a family trust. Mr. Sichko disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the filing of this report is not an admission that Mr. Sichko is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
 
Remarks:
Chief Administrative Officer, Assistant Secretary and Vice President

Exhibit 24.1 - Power of Attorney

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