This compatibilizer additive can help overcome some of these challenges, allowing industry players to continue incorporating greater quantities of PCR in polyolefin applications. Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection  for  end-use  applications, including  ballistic  personal  protection,  marine  and sustainable infrastructure, and outdoor sports     Sustainable  infrastructure  solutions  that  increase  energy efficiency,  renewable  energy, natural resource conservation and fiber optic / 5G network accessibility    

We’re continually supporting brand owners and designers to re-imagine their sustainability goals,” said Alessandra Neves, senior marketing and sustainability manager at Avient. Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports   Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility 

Compared to our prior adjusted EPS expectations, raw material deflation as well as improving mix from composites and sustainable solutions positively impacted the quarter and more than offset weaker demand conditions.” 2 “Sequentially, we’ve seen modest improvement in Asia, but demand across other regions remains sluggish, particularly in Europe, as consumers remain cautious with continued inflation and rising interest rates,” Mr. We have remained consistent in our view all year that to the extent demand conditions weakened further, we would be able to offset that with strength in composites, improving margins and cost reductions.” Rose Vice President, Marketing and 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Sales $ 824.4 $ 891.0 $ 1,670.1 $ 1,783.2 Operating Income 62.3 100.1 119.4 202.3 Net income from continuing operations attributable to Avient shareholders 22.1 62.8 42.9 127.2 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.24 $ 0.69 $ 0.47 $ 1.39 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.24 $ 0.68 $ 0.47 $ 1.38 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.

Advanced Composites Explained FireCon™ Thermoplastic CPE-A (Spanish) FireCon™ Thermoplastic CPE-A (English)

Thermoplastic Elastomers Continuous Glucose Monitors (CGM) Advanced Mobility Composite Structures

Thermoplastic Elastomers Continuous Glucose Monitors (CGM) Advanced Mobility Composite Structures

Patterson continued.  Continuing operations Continuing operations

Examples include: • Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high- performance materials that require less plastic • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation • Breakthrough technologies that minimize wastewater, improve the recyclability of materials and advance a circular economy • Composite solutions to support accelerated growth of 5G / fiber-optic infrastructure investment as the world demands greater and faster connectivity Avient employs approximately 8,400 associates and is certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste. Operational Excellence Empowers us to respond to the voice of the customer with relentless continuous improvement. We will do so though our investments and focus on sustainable solutions for high-growth markets, including healthcare, consumer, packaging and composites/5G.

Thermoplastic Elastomers | Healthcare , Soft Touch Unlock Modular Construction Potential with Flame Retardant (FR) Composite Panels Unlock Modular Construction Potential with Flame Retardant (FR) Composite Panels

Thermoplastic Elastomers | Color & Design , Transportation Unlock Modular Construction Potential with Flame Retardant (FR) Composite Panels Unlock Modular Construction Potential with Flame Retardant (FR) Composite Panels