Avient Launches Biocompatible PEEK Colorants and Pre-Colored Formulations for Healthcare at MEDICA 2024 With ultra-high heat and chemical resistance, excellent mechanical properties, and dimensional stability, polyether ether ketone (PEEK) is an excellent material for applications in the medical field, particularly for applications requiring multiple sterilizations and rigorous disinfection methods. Targeted for applications such as dental scalers, surgical robots, medical stock and shapes, and portable cardiac monitoring devices, the Colorant Chromatics Transcend Biocompatible PEEK range addresses key industry challenges, such as the need for re-sterilizable and reusable high-temperature polymers that meet biocompatibility standards and maintain good color stability.

Color and Additives Solutions Overview Color Masterbatches: OnColor™ Discover color additives and services to help simplify your color evaluation and selection process

Polymer-based solutions to combat brand and product counterfeiting. Overview of how Avient serves wire & cable customers, highlighting both power and data cables technologies Wire & Cable Colorants: OnColor™

Consolidated sales expanded for the first time in seven quarters with contributions from both our Color, Additives and Inks, and Specialty Engineered Materials segments. Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 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, 2024 2023 2024 2023 Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Operating Income 72.5 62.3 166.5 119.4 Net income from continuing operations attributable to Avient shareholders 33.6 22.1 83.0 42.9 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.36 $ 0.24 $ 0.90 $ 0.47 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. Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Sales: Color, Additives and Inks $ 542.0 $ 524.5 $ 1,057.3 $ 1,061.5 Specialty Engineered Materials 308.1 300.8 622.5 610.5 Corporate (0.4) (0.9) (1.1) (1.9) Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Gross margin: Color, Additives and Inks $ 184.5 $ 164.1 $ 355.7 $ 326.1 Specialty Engineered Materials 94.7 91.5 201.7 185.4 Corporate (21.6) (14.9) (21.6) (23.2) Gross margin $ 257.6 $ 240.7 $ 535.8 $ 488.3 Selling and administrative expense: Color, Additives and Inks $ 98.4 $ 96.1 $ 194.8 $ 192.5 Specialty Engineered Materials 51.9 51.8 105.5 102.6 Corporate 34.8 30.5 69.0 73.8 Selling and administrative expense $ 185.1 $ 178.4 $ 369.3 $ 368.9 Operating income: Color, Additives and Inks $ 86.1 $ 68.0 $ 160.9 $ 133.6 Specialty Engineered Materials 42.8 39.7 96.2 82.8 Corporate (56.4) (45.4) (90.6) (97.0) Operating income $ 72.5 $ 62.3 $ 166.5 $ 119.4 Depreciation & amortization: Color, Additives and Inks $ 21.8 $ 25.7 $ 43.7 $ 51.5 Specialty Engineered Materials 20.8 19.9 40.4 41.1 Corporate 2.3 2.0 5.1 5.5 Depreciation & amortization $ 44.9 $ 47.6 $ 89.2 $ 98.1 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 107.9 $ 93.7 $ 204.6 $ 185.1 Specialty Engineered Materials 63.6 59.6 136.6 123.9 Corporate (54.1) (43.4) (85.5) (91.5) Other (expense) income, net (0.9) (0.2) (1.8) 0.5 EBITDA from continuing operations $ 116.5 $ 109.7 $ 253.9 $ 218.0 Special items, before tax 28.1 21.7 34.3 49.0 Interest expense included in special items (1.0) — (1.0) — Depreciation & amortization included in special items (0.3) (0.1) (0.8) (1.9) Adjusted EBITDA $ 143.3 $ 131.3 $ 286.4 $ 265.1 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Maintains outstanding clarity in PET and PETG sheet and film Cesa™ Mat masterbatch reduces gloss and creates a matte or frost-like effect invarious polymer products. Whether you want your product to have a unique and novel look, or just want it to maintain a like-new impression, there are colorants and additives that can help.

Color Cosmetics Materials that can take the heat rising, chemicals flowing and sparks flying under the hood. Materials that can take the heat rising, chemicals flowing and sparks flying under the hood.

This defines TPE as a thermoplastic polymer material. This makes LSR a thermoset polymer material.   Color can help differentiate your product from the competition on a retail shelf, dazzle your customers with a variety of unique choices, or even add an element of safety to your design.

This defines TPE as a thermoplastic polymer material. This makes LSR a thermoset polymer material.   Color can help differentiate your product from the competition on a retail shelf, dazzle your customers with a variety of unique choices, or even add an element of safety to your design.

This defines TPE as a thermoplastic polymer material. This makes LSR a thermoset polymer material.   Color can help differentiate your product from the competition on a retail shelf, dazzle your customers with a variety of unique choices, or even add an element of safety to your design.

This defines TPE as a thermoplastic polymer material. This makes LSR a thermoset polymer material.   Color can help differentiate your product from the competition on a retail shelf, dazzle your customers with a variety of unique choices, or even add an element of safety to your design.