Avient 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

Avient Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; or Media Contact: Kyle G. Rose, Vice President, Marketing and Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

Avient 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

Avient Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com or Media Contact: Kyle G. Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

Avient 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, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

RECYCLING CHALLENGES As more and more PCR enters the value chain, brand owners, recyclers, and convertors are faced with new and increasing challenges related to recycling. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

The resolution was adopted pursuant to Ohio Revised Code section 1701.70(B) (In this space insert the number 1 through 10 to provide basis for adoption.) Upon review of the amendment document presented, my findings are as follows: 1. The fees are as follows: Expedite 1 $100 2 Business Days Expedite 2 $200 1 Business Day Expedite 3 $300 4 Business Hours 2.

Diperbarui: Februari 2021 Kebijakan Global Avient mengenai Antimonopoli Konten Ikhtisar Kebijakan 1 Ikhtisar Undang-Undang Antimonopoli A.S. 2 Pelanggaran Hukum Antimonopoli 3 Potensi Bidang yang Harus Diperhatikan untuk Antimonopoli 3 Kesimpulan 6 Melaporkan Kemungkinan Pelanggaran 7 Saluran Langsung Etika Avient 7 Perlindungan dari Pembalasan Dendam 7 Daftar Periksa Antimonopoli 8 Referensi Cepat: ANJURAN dan LARANGAN Antimonopoli 10 Panduan Kepatuhan Avient berkomitmen untuk menggalakkan persaingan adil dan perusahaan bebas di pasar. Potensi Bidang yang Harus Diperhatikan untuk Antimonopoli 1. Segera hubungi Departemen Hukum Avient dan dokumentasikan insiden tersebut. 10 Amerika Utara Kantor Pusat Global Avon Lake, Amerika Serikat 33587 Walker Road Avon Lake, OH, Amerika Serikat 44012 Nomor Bebas Pulsa: +1 866 765 9663 Nomor Telepon: +1 440 930 1000 Faks: +1 440 930 3064 Asia Pasifik Kantor Pusat Regional Shanghai, Tiongkok 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, Tiongkok Telepon: +86 (0) 21 6028 4888 Faks: +86 (0) 21 6028 4999 Amerika Selatan Kantor Pusat Regional Sao Paulo, Brasil Av.

تاريخ التحديث: فبراير 2021 سياسة Avient العالمية بشأن مكافحة الاحتكار المحتويات 1 دليل الامتثال 1 نظرة عامة على السياسة 2 نظرة عامة على قوانين مكافحة الاحتكار الأمريكية 3 انتهاكات قانون مكافحة الاحتكار 3 الجوانب المثيرة للمخاوف المحتملة فيما يتعلق بمكافحة الاحتكار 5 الخلاصة 6 الإبلاغ عن الانتهاكات المحتملة 6 Avient الخط الساخن للأخلاقيات في 7 القائمة المرجعية لمكافحة الاحتكار 9 المرجع السريع: الأوامر والنواهي فيما يتعلق بمكافحة الاحتكار دليل الامتثال تلتزم Avient بتعزيز المنافسة العادلة واقتصاد السوق الحرة. ولكل من هذه القوانين منهج مختلف وكلها تشكل حجر الأساس في قوانين مكافحة الاحتكار في الولايات المتحدة والأساس لكثير من القوانين العالمية. 1 قانون شيرمان: الجوانب المثيرة للمخاوف المحتملة فيما يتعلق بمكافحة الاحتكار 1 الاتفاقات الأفقية.

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.