The company will then host a conference call at The company is dedicated to serving customers in diverse industries around the globe, by creating value through collaboration, innovation and an unwavering commitment to excellence. Investor Contacts

Avient experts will be on hand at MD&M West, featuring the company’s portfolio of specialty and sustainable polymer solutions for healthcare app Media Relations Contacts Company Officers

CLEVELAND – September 25, 2018 – PolyOne recently collaborated with Rapid Oxygen, a Stamford, CT-based company founded in 2013, on polymer selecti Media Relations Contacts Company Officers

CLEVELAND – When French outdoor equipment specialist Avanona began development of a new range of hunting and camping knives, the company’s de Media Relations Contacts Company Officers

PolyOne To Present at Gabelli & Company Sixth Annual Specialty Chemicals Conference Media Relations Contacts Company Officers

The Avient facility in Glendale, AZ recently received ISO 13485 certification demonstrating the company’s commitment to providing healthcare solutio Media Relations Contacts Company Officers

FRIEDRICHSHAFEN, Germany – October 16, 2017 – PolyOne is highlighting creative applications its customers have developed with the company’s spec Media Relations Contacts Company Officers

The company has priced Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts

The company reported third quarter sales of $815.2 million compared to $753.7 million in the prior year quarter. The question and answer session will follow the company’s presentation and prepared remarks. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 5 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

The question and answer session will follow the company’s presentation and prepared remarks. For the same reasons, the Company is unable to address the probable significance of the unavailable information. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.