Use of Non-GAAP Measures Page 3 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 Page 4 All time high of $32.32 October 21st, 2013 • 16 consecutive quarters of double digit EPS growth • 42% CAGR adjusted EPS expansion 2006-2012 • YTD stock price has increased 56% versus 22% growth in the S&P • Six fold increase in market cap: $0.5b $3.0b Strategy and Execution Drive Results PP&S 15% Specialty 60% Distribution 25% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010* 2011* 2012* 2015 Target Ad ju st ed E ar ni ng s P er S ha re Appliance 6% Building & Construction 13% Wire & Cable Electrical & Electronics 4% Consumer Packaging 18% Industrial 10% Misc. 5% HealthCare Transportation 16% Textiles 1% United States 70% Europe 14% Canada 8% Asia 5% Latin America 3% 2012 Revenues: $4.0 Billion* End Markets* 2012 Revenues: $4.0 Billion* EPS Page 5 * Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms & excludes discontinued operations PolyOne At A Glance * Restated to exclude discontinued operations Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 63% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 YTD 2013 2015 % o f O pe ra tin g In co m e* JV's PP&S Distribution Specialty Specialty OI $5M $46M $87M $153M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 6 2006 YTD 2013 2015 Where we were Where we are Organic Consolidated Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.8% 12.8% 12 – 16% Global Specialty Engineered Materials 1.1% 10.8% 8.9% 12 – 16% Designed Structures & Solutions — — 5.0% 8 – 10% Performance Products & Solutions 5.5% 8.0% 8.2% 9 – 12% Distribution 2.6% 6.1% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 63% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.4% 15% 4) Adjusted EPS Growth N/A 28% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 7 *Percentage of Specialty Platform revenue from products introduced in last five years 19.5% 44.0% 2006 Q3 2013 $20.3 $46.6 2006 TTM Q3'13 14.3% 31.0% 2006 Q3 2013 Research & Development Spending Specialty Platform Vitality Index Progression* Innovation Drives Earnings Growth ($ millions) Specialty Platform Gross Margin % Page 8 We are Experts in Polymer Science and Formulation  Polymer Science  Formulation  Chemistry  Processing Inputs  Base Resins  Additives  Modifiers  Colorants Specialized Polymer Materials, Services, and Solutions Expertise Satisfied Consumers PolyOne Customer Innovative Products & Services  Marketplace Demands  Performance Requirements  Value Drivers Page 9 Positioned for Strong Growth 2015 Target Rev: $5B Adj.

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. عمل أحد الأفراد كمدير أو مسؤول في شركات متنافسة. 3 يحظر قانون روبنسون - باتمان: التحريض على التمايز السعري أو المعرفة بوقوعه. 4 يحظر قانون هيئة التجارة الفيدرالية:

Potensi Bidang yang Harus Diperhatikan untuk Antimonopoli 1. Karena alasan ini, hindari kontak yang tidak perlu dengan pesaing. 3. Jangan mendapatkan informasi (khususnya informasi harga) secara langsung dari pesaing. 4.

To listen to this recording, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 3293155. For the same reasons, the Company is unable to address the probable significance of the unavailable information. 4 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. See Attachment 3 for a definition and summary of special items.

To participate in the audio-only portion of the call, dial 1-844-835- 7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 2171339. To access, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 2171339. See Attachment 3 for a definition and summary of special items.

Attachment 3 1) Attachment 4

The company noted that GAAP EPS includes special items (Attachment 3). See Attachment 3 for a definition and summary of special items. See Attachment 3 for a definition and summary of special items.

Potentiële gebieden van zorg inzake antitrust 1. Vermijd daarom onnodig contact met concurrenten. 3. Verzamel niet anderszins informatie (met name prijsinformatie) rechtstreeks van concurrenten. 4.

titel 20 21 -0 4- 12 1 4: 06 :2 8 Business Register extract Netherlands Chamber of Commerce CCI number 34246357 Page 1 (of 2) Legal entity RSIN 815617781 Legal form Besloten Vennootschap (comparable with Private Limited Liability Company) Statutory name Avient Colorants Netherlands B.V. Employees 4 Sole shareholder Name Clariant Plastics & Coatings AG Visiting address Rothaustrasse 61, CH-4132 Muttenz 1, Switzerland Registered in Handelsregister Basel-Landschaft, Switzerland This extract has been certified with a digital signature and is an official proof of registration in the Business Register. The Chamber of Commerce recommends that this document be viewed in digital form so that its integrity is safeguarded and the signature remains verifiable. 20 21 -0 4- 12 1 4: 06 :2 8 under number CHE-112.279.714 Sole shareholder since 20-10-2015 (registration date: 03-11-2015) Board members Name Borst, Rainer Erich Date of birth 10-10-1961 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Name Kamalak, Ihsan Date of birth 21-08-1985 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Name Merklein, Norbert Date of birth 03-05-1964 Date of entry into office 05-03-2021 (registration date: 30-03-2021) Extract was made on 12-04-2021 at 14.06 hours.

TT3300-8701-5 EI FR V0 grey 3 X GN 191415#SR-13777-5 FDE X GT-13791-1A