Ownership Submission

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

OMB APPROVAL

OMB Number:

3235-0104

Estimated average burden hours per response...

0.5

(Print or Type Responses)

1. Name and Address of Reporting Person ^*

CCMP Capital, LP

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 CCMP CAPITAL ADVISORS, LP, 277 PARK AVENUE, 27TH FLOOR

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	__X__ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

NEW YORK, NY 10172

6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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	29,370,897	I	By CCMP Capital Investors III, L.P. ⁽¹⁾ ⁽³⁾
Common Stock	2,977,037	I	By CCMP Capital Investors III (Employee), L.P. ⁽¹⁾ ⁽³⁾
Common Stock	8,954,565	I	By CCMP Capital Investors III (AV-7), L.P. ⁽¹⁾ ⁽³⁾
Common Stock	506,610	I	By CCMP Capital Investors III (AV-8), L.P. ⁽¹⁾ ⁽³⁾
Common Stock	10,127,880	I	By CCMP Capital Investors III (AV-9), L.P. ⁽¹⁾ ⁽³⁾
Common Stock	663,600	I	By CCMP Capital Investors III (AV-10), L.P. ⁽¹⁾ ⁽³⁾
Common Stock	9,362,178	I	By Quartz Co-Invest L.P. ⁽²⁾ ⁽³⁾

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

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

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
CCMP Capital, LP C/O CCMP CAPITAL ADVISORS, LP 277 PARK AVENUE, 27TH FLOOR NEW YORK, NY 10172		X
CCMP Capital Associates III GP, LLC C/O CCMP CAPITAL ADVISORS, LP 277 PARK AVENUE, 27TH FLOOR NEW YORK, NY 10172		X
CCMP Co-Invest III A GP, LLC C/O CCMP CAPITAL ADVISORS, LP 277 PARK AVENUE, 27TH FLOOR NEW YORK, NY 10172		X

Signatures

CCMP CAPITAL ASSOCIATES III GP, LLC, By: /s/ Richard G. Jansen, Title: Managing Director and General Counsel		09/29/2017
^**Signature of Reporting Person		Date
CCMP CO-INVEST III A GP, LLC, By: /s/ Richard G. Jansen, Title: Managing Director and General Counsel		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)	CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").
(2)	CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").
(3)	CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of PQ Group Holdings Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of PQ Group Holdings Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
Remarks: Form 2 of 2

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.