to non-U.S. persons in reliance on Regulation S under the Securities Act. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: 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 effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; disruptions or inefficiencies in our supply chain, logistics, or operations; changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; fluctuations in raw material prices, quality and supply, and in energy prices and supply; demand for our products and services; 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; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts, and any recessionary conditions; and other factors described in our Annual Report on Form 10-K for the year ended

Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S.

The company expects to incur cash costs of approximately $5 million associated with these actions and non-cash charges of $12 million primarily associated with accelerated depreciation and asset impairments. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: the effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks; changes in polymer consumption growth rates where the Company conducts 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, including any developments that would require any increase in the Company’s costs and/or reserves for such contingencies; 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, and employee productivity goals; an inability to raise or sustain prices for products or services; an inability to maintain appropriate relations with unions and employees; the speed and extent of an economic recovery, including the recovery of the housing markets; the financial condition of the Company’s customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; disruptions, uncertainty or volatility in the credit markets that may limit the Company’s access to capital; other factors affecting the Company’s business beyond the Company’s control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation; the Company’s ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen disruptions of service or quality caused by such closings and/or production shifts; the timing of the recognition of the charges that will be incurred; separation and severance amounts and plant exit costs that differ from original estimates; amounts for non-cash charges related to asset write-offs, asset impairments, and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; the Company’s ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired companies into the Company’s operations, retain the management teams of acquired companies, and retain relationships with customers of acquired companies, including, without limitation, Spartech Corporation; and other factors described in the Company’s annual report on Form 10-K for the year ended December 31, 2013 under Item 1A, “Risk Factors.”

Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.  A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted p p p on our website at www.polyone.com. 1) Special items are a non-GAAP financial measure and are used to determine adjusted earnings.

Use non-formaldehyde materials – Gravi-Tech materials are FDA compliant* and based on a non-formaldehyde formulation. Figure 11 shows how to design a non- structural hole. FIGURE 48 - The Injection Unit Nozzle Non-Return Valve Heater Bands Barrel Screw Hopper Metering Compression Feed FIGURE 47 - Non-Return Valve: Check Ring Check Ring Open Check Ring Closed FIGURE 49 - The Injection Unit FIGURE 50 - Non-return Valve: Check Ring Design Guide 45 FIGURE 48 - Non-Return Valve: Ball Check Ball Check Open Ball Check Closed Poppet Valve The final type of non-return valve is called a poppet valve.

KEY BENEFITS • Highly dispersed additives with high efficacy at low to moderate dosages • Excellent compatibility with the application resin • Non-phenolic and non-phthalate additives • Formulated without animal-derived substances • Food contact compliance according to US FDA and EU norms • OEM approvals for hygiene products • Can be combined with colors into a single combination concentrate for convenience • Product guidance and technical assistance from our experts

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: adjusted EPS, adjusted operating income, free cash flow and adjusted EBITDA. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Version / Date: 1 (no adjustments) / 30.12.2024 Page 2 of 2 Annex I to the certificate: Sustainable materials handled by the certified site (This annex is applicable for all scopes except of Trader, Trader with storage, Warehouse, Logistic centres, MTBE and ETBE) This annex is only valid in connection with the certificate: ISCC-PLUS-Cert-PL214-26100824 issued on 30.12.2024 Input material Output material Add-ons (voluntary)1) Raw material category2) SAI FSA3) FEFAC4) Polypropylene (PP) Plastic Compounds (PP) NO Bio Bio-circular Circular N/A N/A Polyethylene (PE) Plastic Compounds (PE) NO Bio Bio-circular Circular N/A N/A 1) ISCC PLUS add-ons (voluntary application, see www.iscc-system.org for further information): • 202-04: Food Security Standard • 205-02: Consumables • 202-07: Low ILUC-risk feedstock • 205-03: Non GMO for food and feed • 205-01: GHG emission requirements • 205-04: Non GMO for technical markets 2) Bio raw materials complies with the ISCC Principles 1 – 6 for the cultivation and harvesting of sustainable biomass.

Inside Information means information that is both material and non- public. For purposes of this policy, Inside Information includes any material, non-public information about the Company. Non-Public.

USE OF NON-GAAP MEASURES PolyOne Corporation 3 This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: adjusted EPS, pro forma adjusted EPS, adjusted operating income, adjusted EBITDA, return on invested capital (ROIC) and free cash flow. A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation, which is posted on our website at www.polyone.com.