PQ Group Holdings to Host First Quarter 2018 Earnings Conference Call and Webcast on Thursday, May 10, 2018 at 11:00 a.m. EDT

MALVERN, Pa.–(BUSINESS WIRE)–$PQG–PQ Group Holdings Inc. (NYSE:PQG) (“PQ” or the “Company”), a leading,
highly-diversified global provider of specialty catalysts, materials,
chemicals and services, today announced that it plans to release its
first quarter 2018 financial results on Thursday, May 10, 2018,
pre-market open. Management will review the results during a conference
call and audio-only webcast scheduled for 11:00 a.m. eastern daylight
time. Details for the conference call and webcast are below:

Conference Call

Investors may listen to the conference call live via telephone by
dialing 1-877-883-0383 (domestic) or 1-412-902-6506 (international) and
use the participant code 3632848.

Webcast

An audio-only live webcast of the conference call and presentation
materials can be accessed at http://investor.pqcorp.com.
A replay of the conference call/webcast will be made available at http://investor.pqcorp.com/events-presentations.

Investor Contact:
Nahla A. Azmy
(610) 651-4561
[email protected]

About PQ Group Holdings, Inc.

PQ Group Holdings, Inc. is an integrated, global provider of specialty
catalysts, materials, chemicals and services. Our environmental
catalysts and services business is a leading global innovator and
producer of catalysts for the refinery, emissions control, and
petrochemical industries and is also a leading provider of catalyst
recycling services to the North American refining industry. Our
performance materials and chemicals business is a silicates and
specialty materials producer with leading supply positions in North
America, Europe, South America, and Asia, serving diverse and growing
end uses such as personal and industrial cleaning products, fuel
efficient tires, surface coatings, and food and beverage products.

Contacts

PQ Group Holdings Inc.
Investor Contact:
Nahla A. Azmy,
610-651-4561
[email protected]