Special items (1) Gross margin before special items Less: Corporate and special items

TECHNICAL PROPERTIES(1) TEST METHOD Complēt LGF30-PKE NAT LGF40-PKE NAT LGF50-PKE NAT Physical Density/Specific Gravity ASTM D792 1.47 1.54 1.66 Mechanical Tensile Strength (Yield) ASTM D638 21,100 psi 24,700 psi 26,400 psi Tensile Modulus(2) ASTM D638 1,150,000 psi 1,570,000 psi 2,150,000 psi Flexural Modulus(3) ASTM D790 1,120,000 psi 1,480,000 psi 2,030,000 psi Flammability (non-PFAS options available) Flame Rating @ 1.5 mm UL 94 V-0 V-0 — COLD IMPACT PERFORMANCE Ft -lb /in Data based on single lot of lab-generated samples. ■ Notched 23C ■ Unnotched 23C ■ Unnotched -30C■ Notched -30C 0 5 10 15 20 25 Complēt LGF30-PKE NAT Complēt LGF40-PKE NAT Complēt LGF50-PKE NAT Izod Impact Notched ASTM D256/Unnotched ASTM D4812 4.1 4.7 5.4 18.9 19.5 19.919.1 19.8 20.1 4.0 4.6 5.0 (1) Data based on single lot of lab generated samples.

Unless otherwise stated, Adjusted EBITDA figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

Unless otherwise stated, Adjusted EBITDA figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

Unless otherwise stated, Adjusted EBITDA figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

In order to implement the above, directors wishing to undertake a new public company director position will inform the Chairman of the Board, the Lead Director, and the Chair of the Governance and Corporate Responsibility Committee of his or her desire to do so prior to agreeing to stand for nomination. Director Stock Ownership The Board believes that, in order to align the interests of directors and shareowners, directors elected by the holders of the Company’s common shares should have a meaningful personal investment in the Company. Periodically, the Company will provide opportunities for directors to visit Company facilities in order to provide greater understanding of the Company’s business and operations.

The sheet producer began experimenting with material changes in-house, but struggled to achieve consistency of release. This additive technology has proven effective for use in other applications such as a mold release during thermoforming, helping to reduce processing interruptions. Avient offers OnCap™ Denesting additive solutions to enable effective package separation and improve manufacturing operations such as mold release during thermoforming and packaging pick and place operations.

For example, specialized and sustainable polymer formulations may also be available, as well as colorants and additives to enhance performance or aesthetics, to enable proper material selection for each application’s unique requirements. Amorphous vs Semi-Crystalline Thermoplastics An amorphous thermoplastic material has no specific molecular structure while a semi-crystalline polymer has some order.    Materials sampling and evaluation

Such delegation of authority may include, without limitation, the review of the Company’s quarterly earnings press releases and related financial information and the authority to grant pre-approvals of audit and permitted non-audit services, provided that decisions of such subcommittee shall be presented to the full Audit Committee at its next scheduled meeting. Discuss with management and the independent auditor significant financial reporting issues and judgments made in connection with the preparation of the Company’s financial statements, including any significant changes in the Company’s selection or application of accounting principles, any major issues as to the adequacy of the Company’s internal controls and procedures and any special steps adopted in light of material weaknesses or significant deficiencies. 4. Discuss the Company’s quarterly earnings press releases, including with respect to the use of any “pro forma” or “adjusted” financial information not presented in accordance with generally accepted accounting principles, as well as financial information and earnings guidance, if any, provided to investors, analysts, rating agencies or financial institutions. 5.

NEUSoft™ UR842A NEUSoft™ UR852A NEUSoft™ UR862A NEUSoft™ UR873A Hardness 42 52 62 73 Specific Gravity 0.96 0.98 1.01 1.04 Compression Set 17 16 16 23 Tensile Strength @ 50% (psi) 130 185 265 455 Tensile Strength @ 100% (psi) 185 257 364 594 Tensile Strength @ 200% (psi) 305 392 532 830 Tensile Strength @ Break 990 1367 1849 2509 Elongation 501 575 626 542 Tear Resistance 120 164 234 319 Melt Index 190C/8.7kg 2 4 9 13 SELECTION GUIDE NEUSoft™ Thermoplastic Polyurethanes With continued advancement in healthcare technology, the importance of quick prototyping and material sampling has never been greater. Samples are recommended.