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TIER 1 AEROSPACE SUPPLIER S E A T I N G S T R U C T U R A L C O M P O N E N T • Reduce weight to improve fuel economy • Pass FAA flame, smoke, toxicity requirements • Meet structural requirements • Simplify manufacturing process • Lowered weight ~40% versus aluminum while maintaining the strength performance properties • Formulated a PES material to satisfy flame, smoke, toxicity (FST) standards for commercial aircraft • Passed and/or exceeded customer’s impact testing specifications • Provided an injection moldable hybrid glass/carbon fiber solution that enabled lower viscosity and better processability for thin wall parts Complēt™ Long Hybrid (Carbon + Glass) Fiber Reinforced PES Composite KEY REQUIREMENTS WHY AVIENT?

KODEKS POSTĘPOWANIA | 4 SPIS TREŚCI WSTĘP NASZ KODEKS POSTĘPOWANIA SZACUNEK DLA WSZYSTKICH UCZCIWOŚĆ W PRACY UCZCIWOŚĆ W DZIAŁALNOŚCI BIZNESOWEJ SPOŁECZNA ODPOWIEDZIALNOŚĆ BIZNESU DANE KONTAKTOWE mailto:https://secure.ethicspoint.com/domain/media/en/gui/49178/index.html? Należy kierować się następującymi dwoma prostymi zasadami: 1. Wszystkie zgłoszenia pozostaną poufne w możliwie najszerszym zakresie. avient.ethicspoint.com 1-877-228-5410 (USA).

GAAP EPS includes $0.21 of special items (see Attachment 3) and $0.18 of intangible amortization expense (see Attachment 1). You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. 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.

GAAP EPS includes $0.35 of special items (see Attachment 3) and $0.16 of intangible amortization expense (see Attachment 1). You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. 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 September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Operating Income 34.3 40.6 153.7 242.9 Net income (loss) from continuing operations attributable to Avient shareholders 5.1 (27.4) 48.0 99.8 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.06 $ (0.30) $ 0.53 $ 1.09 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.06 $ (0.30) $ 0.52 $ 1.08 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.

The company noted that first quarter 2024 GAAP EPS includes $0.06 of special items (see Attachment 3) and $0.16 of intangible amortization expense (see Attachment 1). You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 5 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. 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 6 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2024 2023 Sales $ 829.0 $ 845.7 Operating income 94.0 57.1 Net income from continuing operations attributable to Avient shareholders 49.4 20.8 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.54 $ 0.23 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.

The company noted that second quarter 2024 GAAP EPS includes $0.24 of special items (see Attachment 3) and $0.16 of intangible amortization expense (see Attachment 1). We also generated 4% and 1% organic sales growth in EMEA and Asia, respectively. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Každý z nich přistupuje k tématu jinak a všechny tvoří základní kameny antimonopolních zákonů USA a podklady pro mnoho globálních zákonů. 1. Například domluvené stanovení cen je trestným činem, který lze trestat odnětím svobody a vysokými pokutami – až do výše 1 milionu USD pro jednotlivce a 100 milionů USD nebo více pro společnosti. subject= http://avient.ethicspoint.com http://www.Avient.com/company/policies-and-governance/ethics-hotline http://www.Avient.com/company/policies-and-governance/ethics-hotline 1.