Scope 1 emissions are direct emissions owned or controlled by a company, whereas scope 2 and 3 indirect emissions result from the company’s activities but occur from sources not owned or controlled by it. Over the past three years, Avient has made significant strides in developing materials to enable sustainability, introducing over 40 new product lines to incorporate more recycled content, bio-derived materials, lightweighting solutions, and energy-saving technologies. About Avient  

Strong revenue growth and record operating income helped to overcome substantial raw material inflation and supply chain disruptions resulting from Hurricane Harvey. However, and as described earlier and is evident in the chart below, company operating income performance was negatively impacted by substantial raw material inflation and supply chain disruptions resulting from Hurricane Harvey. Delivering 8 consecutive years of adjusted earnings per share expansion, driven by record levels of sales growth and profits, has created shareholder value.

Avient Announces First Quarter 2025 Results... Avient To Hold First Quarter 2025 Conference Call... Avient Announces Fourth Quarter and Full Year 2024 Results...

Weight savings—combined with high performance—are key in the automotive industry. Avient Announces First Quarter 2025 Results... Avient To Hold First Quarter 2025 Conference Call...

The company maintains its previously communicated full-year adjusted EPS guidance of $3.00, which is an increase of 55% over the prior year adjusted EPS of $1.93. 2 "This has been one of the most challenging years we have experienced as a result of navigating the COVID pandemic and an unprecedented combination of inflation, supply chain disruptions, and labor shortages,” Mr. To access, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 7899765. Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended 2021年9月30日 2020 2021 2020 Sales $ 1,219.8 $ 924.5 $ 3,617.3 $ 2,245.1 Operating Income 78.7 33.5 307.2 124.3 Net income from continuing operations attributable to Avient shareholders 52.9 1.7 201.0 57.8 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.58 $ 0.02 $ 2.20 $ 0.64 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.57 $ 0.02 $ 2.18 $ 0.64 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

R E I N F O RC E D T H E R M O P L A S T I C P I P E F O R O I L + G A S • Reinforcement for HDPE pipe to meet the performance of traditional steel pipe for oil and gas applications • Temperature performance up to 65˚C with operating pressure up to 1500 psi • Spoolable, lightweight material to simplify transport and installation • Provided material compatibility with HDPE and added reinforcement to meet burst strength requirements • Customized tape thickness to meet specific processing needs • Ensured supply chain reliability with fast delivery and quality control in North America • Flexible, reinforced plastic solution enabled spoolable pipe and reduced weight Polystrand™ Continuous Glass Fiber Reinforced Polyethylene Tape KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION STRONG – DURABLE – LIGHTWEIGHT LEARN MORECopyright © 2021, Avient Corporation.

Glucose Monitoring App Snapshot draft M E D I C A L D E V I C E O E M C O N T I N U O U S G L U C O S E M O N I T O R I N G S Y S T E M • Adapt to strict processing requirements of a secondary operation put in place to manufacture a new device model • Meet material size and thickness requirements while achieving desired color target • Overcome material unpredictability and sensitivity to heat, light and moisture • Minimize impact of supply chain instability and changes • Offered support for processing under low pressure conditions and at every stage of manufacturing • Performed extensive R&D work to consistently deliver the customer’s color target of a hard-to-achieve light gray • Effectively addressed all material challenges and sensitivities • Provided regular ‘summaries of understanding’ to keep up with changing forecasts and ordering patterns Mevopur™ Pre-color Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PROCESSING + MATERIAL PERFORMANCE LEARN MORE © 2022, Avient Corporation, All Rights Reserved.

Low coefficient of thermal expansion 1-2% 1%

GEON C7001 GRY 2827 AUTO C8003 GRY 2827 AUTO Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

BLACK AUTO AIR VERSION A BLACK AUTO AIR VERSION B Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)