KEY PERFORMANCE ADVANTAGES Southern Yellow Pine1 Equivalent Wood Pole GridCore FRP Pole2 14 in x .750 in Length (ft) Load Class3 Allowable Class Load4 (kip) Weight (lb) Deflection5 (in) Weight (lb) Deflection5 (in) 40 3 1.95 1360 35 1040 12 2 2.41 1580 32 14 1 2.93 1810 30 18 H1 3.51 2050 28 21 H2 4.16 2310 26 25 45 3 1.95 1630 45 1170 17 2 2.41 1880 41 21 1 2.93 2160 38 26 H1 3.51 2450 36 31 H2 4.16 2760 33 37 50 3 1.95 1910 56 1300 24 2 2.41 2210 52 30 1 2.93 2530 48 36 H1 3.51 2880 45 44 H2 4.16 3240 42 52 55 3 1.95 2210 68 1430 33 2 2.41 2550 63 40 1 2.93 2930 58 49 H1 3.51 3320 54 59 H2 4.16 3740 51 70 60 3 1.95 2520 82 1560 43 2 2.41 2910 76 53 1 2.93 3340 70 65 H1 3.51 3790 65 78 H2 4.16 4270 61 92 65 3 1.95 2840 97 1690 56 2 2.41 3290 90 69 1 2.93 3770 83 84 H1 3.51 4280 77 100 H2 4.16 4820 72 119 70 3 1.95 3180 114 1820 71 2 2.41 3690 105 87 1 2.93 4220 97 106 H1 3.51 4790 90 127 H2 4.16 5390 85 150 POLE SELECTION GUIDE 1 Wood properties data are per ANSI O5.1-2022 Table 1. For other species shown in the table above, contact Avient for suggestions. 2 FRP pole sizes are selected based on allowable Class loads specified in NESC Table 261-1.

IATF Certificate Place and date: For the issuing office: Katy, TX, 10 December 2024 Revision 2 DNV - Business Assurance 1400 Ravello Drive, Katy, TX, 77449- 5164, USA Sherif Mekkawy Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV Business Assurance USA Inc., 1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 1 of 2 MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 273138-2018-AQ-RGC-IATF IATF Certificate No: 0558323 Valid: 10 December 2024 – 09 December 2027 This is to certify that the management system of Polyone - Shenzhen Co., Ltd. ACCREDITED UNIT: DNV Business Assurance USA Inc., 1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 2 of 2 Appendix to Certificate Polyone - Shenzhen Co., Ltd.

TECHNICAL PROPERTIES(1) TEST METHOD Edgetek™ ET8900-0011 HI UV NAT Edgetek™ ET8900-0012 HI UV White Edgetek™ ET8900-0013 HI UV Black Physical Density/Specific Gravity ASTM D792 1.13 g/cm3 1.15 g/cm3 1.13 g/cm3 Molding Shrinkage - Flow ASTM D955 1.4–2% 1.4–2% 1.4–2% Mechanical Tensile Strength (Yield) ASTM D638 5,900 psi 5,800 psi 5,800 psi Tensile Modulus(2) ASTM D638 169,000 psi 161,087 psi 176,000 psi Flexural Modulus(3) ASTM D790 187,000 psi 190,985 psi 188,000 psi Impact Notched Izod Impact 73°F (23°C), 0.125 in ASTM D256A 17.3 ft-lb/in 16.5 ft-lb/in 16.5 ft-lb/in Notched Izod Impact -22°F (-30°C), 0.125 in ASTM D256A 3.2 ft-lb/in 3.0 ft-lb/in 3.3 ft-lb/in Thermal (HDT) 66 psi (0.45 MPa), 0.125 in ASTM D648 121°C 135°C 129°C NORTH AMERICA GRADES (1) Data based on single lot of lab generated samples. Values are not to be construed as specifications. (2) 2.0 in/min (3) 0.5 in/min

CESA LIGHT – STANDARD OFFERINGS POLYMER FAMILY MATERIAL PRODUCT NAME PRODUCT TYPE DOSAGE Polyolefin PEA0820040 CESA Light PEA0820040 Stabilizer/Absorber 0.5–1.2% Polyolefin PRAN698456 CESA Light 7102 Stabilizer 1–4% HOPP PPA0820048 CESA Light PPA0820048 Stabilizer/Absorber 1–2% HOPP PPAN698522 CESA Light 7225 Stabilizer 1–4% Nylon ABA0820033 CESA Light ABA0820033 Stabilizer/Absorber 0.6–1.4% Nylon ABAN698415 CESA Light 1574 Stabilizer 1–2% Polyester FPA0687372 Hiformer™ Blocker (liquid) Absorber to 390 nm 0.05–0.10% Polyester NBA0820025 CESA Light NBA0820025 Absorber 0.5–2% Polycarbonate NCA0820016 CESA Light NCA0820016 Stabilizer/Absorber 0.75–3% Polycarbonate NCA0820017 CESA Light NCA0820017 Absorber 1–5% TPU RUA0820018 CESA Light RUA0820018 Absorber 2–4% TPU RUA0820030 CESA Light RUA0820030 Stabilizer/Absorber 2–4% Styrenic SLA0820013 CESA Light SLA0820013 Stabilizer/Absorber 1–3% Styrenic SLA0820012 CESA Light SLA0820012 Stabilizer 1.5–5% CESA Light additives can be used in combination with other CESA masterbatches, and formulations can be customized for most applications.

Certificación de Inscripción Registro de Comercio de Santiago Carátula: 17728662 Morandé 440 Santiago Teléfono: 2 2390 0800 www.conservador.cl info@conservador.cl AVIENT CHILE SpA Cód. de verificación: cec_1c0abd-0 Documento incorpora firma electrónica avanzada conforme a Ley N°19.799. Santiago, 3 Junio 2021 C ód ig o de V er ifi ca ci ón : 0 12 -2 10 6- 03 09 -1 14 2 012-2106-0309-1142 Documento incorpora Firma Electronica Avanzada Código de Verificación: cec_1c0abd-0 pagina 2 de 2 EDUARDO JAVIER DIEZ MORELLO 2021-06-03T10:28:54-0600 Santiago Firma Electrónica Notario 2021-06-04T10:37:47-0400

titel 20 21 -1 2- 27 1 1: 24 :4 8 Business Register extract Netherlands Chamber of Commerce CCI number 72287497 Page 1 (of 2) Legal entity RSIN 859060317 Legal form Foreign Legal Entity: Société à Responsabilité Limitée (S.A.R.L.) 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 -1 2- 27 1 1: 24 :4 8 Name Potoczny, Zaneta Gabriela Date of birth 17-10-1974 Date of entry into office 27-02-2019 (registration date: 12-08-2019) Name Merklein, Norbert Date of birth 03-05-1964 Date of entry into office 18-01-2021 (registration date: 29-10-2021) Authorised representative Name Van den Brande, Philip Theophiel Anna Date of birth 13-08-1974 Date of entry into office 24-07-2018 Title Branch Manager Contents of power of attorney There are other restrictions. Business Register extract Netherlands Chamber of Commerce CCI number 72287497 Page 2 (of 2) N/A 2021-12-27T11:24:54+0100 Utrecht Kamer van Koophandel Dit document is digitaal ondertekend 2021-12-27T11:24:55+0100

Microsoft PowerPoint - AVNT Nov 2022 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) D E C E M B E R 2 0 2 2 AVIENT: WHO WE ARE 40 23 9 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 9,300+ employees 100+ manufacturing plants Key Financial Data 2022PF Sales $3.6 billion 2022PF EBITDA $585 million 2022PF EPS $2.95 100% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 2 Guidance as of November 2, 2022 Webcast WHO WE ARE – VISION, STRATEGY, CULTURE 3 Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Purchase price multiple rapidly declining on strength of business and synergy capture 12 $133 $201 2019PF 2022E 12 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.4x 2019PF 2021 2022E w/ Full Synergies 11.9% 16.3% 2019PF 2022E EBITDA Margins CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION (1) Financial information is pro forma to include a full year of Clariant Color business SUNBELT PVC Resins DSS 20 Acquisitions $4.8B Investment $2.7B of Annual Revenue 5 Divestments $2.3B Proceeds TPE PP&S HISTORIC SPECIALIZATION THROUGH M&A 13 Distribution DSM Protective BOLT-ON ACQUISITION HISTORY 14 Commercial Resources Operating Income Operating Margins 259 363 $40 $139 Established Acquisitions (> 7 years) + 40% + 248% + 1300 bps I N V E S T T O G R O W SPECIALTY TRANSFORMATION T O D A Y 46% 67% 86% 0% 60% 80% 2005 2010 2019 2021 2022 PF % o f A d ju st ed E B IT D A • Commodity JVs • Distribution • Performance Products & Solutions • Specialty Businesses (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and divestiture of Distribution (1 ) (2) 15 Building & 43% 14% Telecom. 2% 2006 2022 Pro Forma 21% Building & Telecom. Sales EBITDA Specialty Engineered Materials Color Additives and Inks $585M$3,635M 29 C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .3 B ILL ION US & Canada Latin America END MARKET REGION 30 33% Building & 1% Energy Figures represent 2022 full year estimates S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET US & Canada 50% REGION 31 Figures represent 2022 full year estimates 19% 8%Industrial 16% Building & 31% 28% Building & 3% 2% Defense (20% of sales) 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 29% 17% Building & (35% of sales) 14% Building & 12% US & Canada (40% of sales) 49% Building & LATAM (5% of sales) 3%Telecommunications Figures represent 2022 full year estimates32

Microsoft PowerPoint - AVNT Nov 2022 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) D E C E M B E R 2 0 2 2 AVIENT: WHO WE ARE 40 23 9 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 9,300+ employees 100+ manufacturing plants Key Financial Data $3.6 billion2022PF Sales $585 million2022PF EBITDA $2.952022PF EPS 100% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 2 Guidance as of November 2, 2022 Webcast WHO WE ARE – VISION, STRATEGY, CULTURE 3 Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Purchase price multiple rapidly declining on strength of business and synergy capture 12 $133 $201 2019PF 2022E 12 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.4x 2019PF 2021 2022E w/ Full Synergies 11.9% 16.3% 2019PF 2022E EBITDA Margins CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION (1) Financial information is pro forma to include a full year of Clariant Color business SUNBELT PVC Resins DSS 20 Acquisitions $4.8B Investment $2.7B of Annual Revenue 5 Divestments $2.3B Proceeds TPE PP&S HISTORIC SPECIALIZATION THROUGH M&A 13 Distribution DSM Protective BOLT-ON ACQUISITION HISTORY 14 Commercial Resources Operating Income Operating Margins 259 363 $40 $139 Established Acquisitions (> 7 years) + 40% + 248% + 1300 bps I N V E S T T O G R O W SPECIALTY TRANSFORMATION T O D A Y 46% 67% 86% 0% 60% 80% 2005 2010 2019 2021 2022 PF % o f A d ju st ed E B IT D A • Commodity JVs • Distribution • Performance Products & Solutions • Specialty Businesses (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and divestiture of Distribution (1 ) (2) 15 Building & 43% 14% Telecom. 2% 2006 2022 Pro Forma 21% Building & Telecom. Sales EBITDA Specialty Engineered Materials Color Additives and Inks $585M$3,635M 29 C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .3 B ILL ION US & Canada Latin America END MARKET REGION 30 33% Building & 1% Energy Figures represent 2022 full year estimates S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET US & Canada 50% REGION 31 Figures represent 2022 full year estimates 19% 8%Industrial 16% Building & 31% 28% Building & 3% 2% Defense (20% of sales) 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 29% 17% Building & (35% of sales) 14% Building & 12% US & Canada (40% of sales) 49% Building & LATAM (5% of sales) 3%Telecommunications Figures represent 2022 full year estimates32

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NIE 10.Notyfikacje z BRIS dotyczące przedsiębiorcy zagranicznego ­­­­­­ Rubryka 2 ­ Siedziba i adres oddziału 1.Siedziba oddziału kraj POLSKA, woj. KUTNO 2.Adres oddziału ul. Podrubryka 1 Dane osób wchodzących w skład organu 1 1.Nazwisko / Nazwa lub firma KRONIMUS 2.Imiona HOLGER HANS 3.Funkcja w organie reprezentującym ZARZĄDZAJĄCY 2 1.Nazwisko / Nazwa lub firma PALM 2.Imiona CHRISTOPH 3.Funkcja w organie reprezentującym ZARZĄDZAJACY 3 1.Nazwisko / Nazwa lub firma POTOCZNY 2.Imiona ŻANETA GABRIELA 3.Funkcja w organie reprezentującym ZARZĄDZAJACY 4 1.Nazwisko / Nazwa lub firma MERKLEIN 2.Imiona NORBERT 3.Funkcja w organie reprezentującym ZARZĄDZAJĄCY Rubryka 2 ­ Organ nadzoru Rubryka 3 ­ Prokurenci Rubryka 4 ­ Osoby reprezentujące zagranicznego przedsiębiorcę w oddziale 1 1.Nazwisko DROJMA 2.Imiona KAMIL RAFAŁ Strona 2 z 5 3.Numer PESEL 85072613192 4.Funkcja w oddziale ­­­­­­ Dział 3 Rubryka 1 ­ Przedmiot działalności 1.Przedmiot przeważającej działalności 1 20, 12, Z, PRODUKCJA BARWNIKÓW I PIGMENTÓW 2.Przedmiot pozostałej działalności 1 20, 16, Z, PRODUKCJA TWORZYW SZTUCZNYCH W FORMACH PODSTAWOWYCH 2 22, 2, , PRODUKCJA WYROBÓW Z TWORZYW SZTUCZNYCH 3 22, 22, Z, PRODUKCJA OPAKOWAŃ Z TWORZYW SZTUCZNYCH 4 22, 23, Z, PRODUKCJA WYROBÓW DLA BUDOWNICTWA Z TWORZYW SZTUCZNYCH 5 22, 29, Z, PRODUKCJA POZOSTAŁYCH WYROBÓW Z TWORZYW SZTUCZNYCH 6 22, 21, Z, PRODUKCJA PŁYT, ARKUSZY, RUR I KSZTAŁTOWNIKÓW Z TWORZYW SZTUCZNYCH 7 70, 22, , POZOSTAŁE DORADZTWO W ZAKRESIE PROWADZENIA DZIAŁALNOŚCI GOSPODARCZEJ I ZARZĄDZANIA 8 68, 10, Z, KUPNO I SPRZEDAŻ NIERUCHOMOŚCI NA WŁASNY RACHUNEK 9 68, 20, Z, WYNAJEM I ZARZĄDZANIE NIERUCHOMOŚCIAMI WŁASNYMI LUB DZIERŻAWIONYMI Rubryka 2 ­ Wzmianki o złożonych dokumentach Rodzaj dokumentu Nr kolejny w polu Data złożenia Za okres od do 1.Wzmianka o złożeniu rocznego sprawozdania finansowego 1 20.02.2020 OD 11.09.2018 DO 31.12.2018 2 21.07.2021 OD 01.01.2019 DO 31.12.2019 3 10.09.2021 OD 01.01.2020 DO 31.12.2020 2.Wzmianka o złożeniu opinii biegłego rewidenta / sprawozdania z badania rocznego sprawozdania finansowego 1 ***** OD 01.01.2019 DO 31.12.2019 2 ***** OD 01.01.2020 DO 31.12.2020 3.Wzmianka o złożeniu uchwały lub postanowienia o zatwierdzeniu rocznego sprawozdania finansowego 1 ***** OD 01.01.2019 DO 31.12.2019 2 ***** OD 11.09.2018 DO 31.12.2018 Rubryka 3 Rubryka 4 ­ Przedmiot działalności statutowej organizacji pożytku publicznego Rubryka 5 ­ Informacja o dniu kończącym rok obrotowy 1.Dzień kończący pierwszy rok obrotowy, za który należy złożyć sprawozdanie finansowe 31.12.2018 Strona 3 z 5 Dział 4 Rubryka 1 ­ Zaległości Rubryka 2 ­ Wierzytelności Rubryka 3 ­ Informacje o oddaleniu wniosku o ogłoszenie upadłości na podstawie art. 13 ustawy z 28 lutego 2003 r.