Our range of world-class services includes: COLOR TECHNOLOGY Custom matching, saturated colors & special effects to fill market niches and eliminate secondary operations COLOR AND DESIGN SERVICES Trend and color insights, and product development assistance to optimize design and improve speed to market REGULATORY COORDINATION Aid with new product approvals to reduce regulatory overhead and minimize risk FIELD TECHNICAL SERVICE Support for tool design, startup and production optimization to gain manufacturing efficiencies SUSTAINABILITY Innovative materials and solutions to help you meet your sustainability goals EQUIPMENT AND SUPPORT Installation, training and dosing equipment, all customized to your needs

With our 5 brands, Wilflex™, Rutland™, Union Ink™, Printop™, and QCM™ we are recognized as a leader in our markets with a deep focus on quality, innovation, and customer service. Our Wilflex and Rutland brands first emerged in the early 1960s, when screen printing on T-shirts was gaining popularity for self- expression, affording us global recognition, and allowing us to develop products making the screenprinting process easier, more attractive and more profitable. SOME OF OUR FIRSTS • Development of the industry’s first plastisol color mixing system for screen printing ink • Introduction of the first automated ink dispensing equipment OUR SPECIALTY INKS • Broadest range of specialty screen printing inks, including: non-phthalate PVC plastisol, water-based, silicone, and non-PVC plastisol • Ink room solutions including inventory management software • Strong expertise in R&D and product development • Demonstrated technical service and color matching capabilities • Highly efficient manufacturing operations • Global manufacturing footprint and customer reach OUR BRANDS • Wilflex is a leading brand of specialty screen printing inks with a focus on total ink-room management, providing the most efficient, cost-effective environment possible • Rutland is a leading brand of specialty screen printing inks for the textile industry with a strong commitment to making the screen printing process easier, more attractive and more profitable for customers • Union Ink is a brand dedicated to providing the broadest range of innovative and inspired screen printing inks with the highest opacity mixing systems in the market • Printop is a leading brand of textile screen printing inks in Latin America including plastisols, water-based, and discharge inks • QCM is a trusted brand of cost- effective, high quality inks for one of the most recognizable products in the world, the printed t-shirt SPECIALTY INKS GLOBAL FOOTPRINT • Five manufacturing facilities in Kennesaw, Georgia; Pineville, North Carolina; Lima, Peru, Shenzhen, China; and Mumbai, India (JV) • Warehouse and distribution facilities in Georgia, North Carolina and Ohio in the US, Paddock Wood and Widnes, U.K., and Singapore • Global presence of distributors located in over 60 countries Copyright © 2018, PolyOne Corporation.

Demand for defense, energy and telecom composite applications are helping to offset weakness in other markets around the world." Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performanceperiod; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. Rose, Vice President, Marketing and Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

Sales of our specialty materials into defense, energy, and transportation end markets have shown resilience during these challenging times.” This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, environmental remediation costs, mark-to-market adjustments associated with benefit plans, acquisition related costs, and other non-routine costs. 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.

Our Color, Additives & Inks (CAI) segment led the way with record first quarter operating income, driven by both organic gains and recent acquisitions." Our investments in sales, marketing and technology resources continue to drive our performance," added Mr. With our invest-to-grow strategy, we better serve new and existing markets and applications, and in doing so, accelerate sales growth and margin expansion for us and our customers."

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation KeyBanc 2013 Capital Markets’ Basic Materials & Packaging Conference September 10th, 2013 • In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales. • Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. • The above list of factors is not exhaustive. • We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. EPS: $1.00 $0.54 $0.68 $0.30 $0.45 $0.60 $0.75 H1'12 H1'13 Adjusted EPS $101.0 $132.6 $50.0 $100.0 $150.0 H1'12 H1'13 Adjusted Operating Income (millions) +31% $68.8 $97.7 $50.0 $75.0 $100.0 H1'12 H1'13 Specialty Operating Income (millions) First Half 2013 Financial Highlights • Adjusted EPS increased 26% over prior year first half • Operating Income expanded 31% versus first half 2012 • Specialty operating income up 42% • Revenue grew 22% versus 1H ‘12 • Portfolio transformation activities  Completed acquisition of Spartech  Divested non-core Resin business +26% +42% Page 12 • Significant Debt Maturities $ 1,010 Other Debt 21 • Total Debt at 6/30/13 Less: Cash Net Debt • Available Liquidity Cash ABL Availability Total Liquidity • Net Debt / EBITDA = 1.9x • Net Debt / EBITDA = 2.1x*(tax adjusted) $392 310 $702 $1,031 392 $639 $50 $360 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Significant Debt Maturities As of June 30, 2013 ($ millions) Page 13 Coupon Rates: 7.500% 7.375% 5.250% *Pro Forma TTM for taxes on resin gain Debt Maturities & Liquidity Summary – 6/30/13 Cash Balance = $392M Net Debt / EBITDA* = 1.9x • Repurchased ~3.0M shares YTD in 2013 • 17 million shares are available for repurchase under the current authorization Share Repurchase • Introduced a quarterly dividend in Q1 2011 and increased in Q1 2012 (25%) and Q1 2013 (20%) • Objective of maintaining and growing Dividends • Expanding our sales, marketing, and technical capabilities is top priority • Investing in operational and LSS initiatives (including synergy capture) • CAPEX Organic Growth • Targets that expand our: • Specialty offering • End market presence • Geographic footprint • Synergy opportunities • Adjacent material solutions • North American manufacturing alignment Acquisitions *TTM 6/30/2013 Use of Cash Page 14 Why Invest In PolyOne?

Without these documents, the manufacturer couldn’t market its products to international customers. Combined, these improvements enabled the company to compete on quality and operate profitably while gaining new business.

In addition to a gain in toughness performance LFTs also boost stiffness and strength as well.

Innovative, rollable tripod design gains strength and durability from composites

Specific gains include: •    39 percent reduction in the weight of finished assemblies •    50 percent increase in the number of molded heat sinks produced each day •    20 percent reduction in the total cost to produce each heat sink •    Elimination of secondary finishing operations