A. Schulman declares regular and convertible special stock cash dividends

AKRON, Ohio – June 14, 2018 – A. Schulman, Inc. (Nasdaq: SHLM) announces a regular quarterly cash
dividend of $0.205 per common share, payable August 1, 2018, to shareholders of record on July 13, 2018.

Additionally, the Company announces the quarterly cash dividend of $15.00 per share on the 125,000
shares of the Company’s convertible special stock, payable on August 1, 2018 to shareholders of record
on July 15, 2018.

About A. Schulman, Inc.
A. Schulman, Inc. is a leading international supplier of high-performance plastic compounds, composites
and resins headquartered in Akron, Ohio. Since 1928, the Company has been providing innovative solutions
to meet its customers' demanding requirements. The Company's customers span a wide range of markets such as packaging, mobility, building & construction, electronics & electrical, agriculture, personal care & hygiene, sports, leisure & home, custom services and others. The Company employs approximately 4,900 people and has 54 manufacturing facilities globally. A. Schulman reported net sales of approximately $2.5 billion for the fiscal year ended August 31, 2017. Additional information about A. Schulman can be found
at www.aschulman.com.

Media and Investors:
Jennifer K. Beeman
Vice President, Corporate Communications & Investor Relations
A. Schulman, Inc.
3637 Ridgewood Road
Fairlawn, OH 44333
United States
Tel: +1 330-666-3751
Email: Jennifer.Beeman@aschulman.com