Revised: December 20, 2024 AVIENT CORPORATION Securities Trading Policy 1. Pre-arranged Trading Plans: An SEC rule, Rule 10b5-1(c), provides a defense from insider trading liability if trades occur pursuant to a pre-arranged “trading plan” that meets specified conditions. While trading plans can be established for a single trade or a series of trades, the Company prefers that your trading plan be established for a series of trades because Rule 10b5-1 places certain limitations on single trade plans.

The Board may modify the Guidelines from time to time and may make exceptions to them. 1. Is a current employee, or has an immediate family member who is a current executive officer of, a company that makes or has made payments to, or received payments from, the Company for property or services in an amount which, in any of the last three fiscal years, exceeds the greater of $1 million, or 2% of the other company’s consolidated gross revenues. The following relationships will not be considered to be material relationships that would impair a director’s independence: (i) If the director is, or has an immediate family member who is, a partner (general or limited) in, or a controlling stockholder, equity holder, executive officer, other employee, or director of, any organization to which the Company made, or from which the Company received, payments for property or services in the current or any of the past three fiscal years where the amount involved in such transaction in any such fiscal year was less than the greater of $1 million or 2% of the organization’s consolidated gross revenues for that year; (ii) If the director is, or has an immediate family member who is, a director or trustee of any organization to which the Company has made, or from which the Company has received payments for property or services, and the director (or his/her immediate family member) was not involved in the negotiations of the terms of the transaction, did not, to the extent applicable, provide any services directly to the Company, and did not receive any special benefits as a result of the transaction; or (iii) If the director, or an immediate family member of the director, serves as an officer, director or trustee of a foundation, university, charitable or other not-for-profit organization, and the Company’s discretionary charitable contributions to the organization, in the aggregate are less than the greater of $1 million or 2% of that organization’s latest publicly available annual consolidated gross revenues.

Example: Deflection for 24 inch panel = Chart value *[12 / 24] Performance Comparison Hammerhead Panels and Marine Plywood TAB TESTING OF VARIOUS INSTALLATION METHODS Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate BOTTOM PANEL LEGLENGTH BREAK STRENGTH PETG Skins with Plywood Core 1 in/25 mm 1.5 in/38 mm 2 in/51 mm 2400 lbs/1089 kg 2820 lbs/1279 kg 2748 lbs/1246 kg Hammerhead with 5 lb/ft3 (80 kg/m3) Core Density 2 in 51 mm 665 lbs 302 kg Hammerhead with 7 lb/ft3 (115 kg/m3) Core Density 2 in 51 mm 881 lbs 400 kg Hammerhead with 8 lb/ft3 (135 kg/m3) Core Density 2 in 51 mm 1084 lbs 492 kg Marine Plywood 2 in 51 mm 770 lbs 349 kg Glass/Epoxy with Plywood Core 2 in 51 mm 1055 lbs 479 kg Glass/Polyester with Balsa Core 2 in 51 mm 919 lbs 417 kg L-Bracket Installation Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate BOTTOM PANEL LEGLENGTH BREAK STRENGTH PETG Skins with Plywood Core 2 in 51 mm 2375 lbs 1077 kg Marine Plywood 2 in 51 mm 770 lbs 349 kg Glass/Polyester with Balsa Core 2 in 51 mm 797 lbs 362 kg U-Channel Installation ITW Plexus MA420 adhesive was used in all tab testing installations except where noted. G LA SS /E P O XY T AB M AT ER IA L N O T AB BOTTOM PANEL LEG LENGTH BREAK STRENGTH Hammerhead with 5 lb/ft3 (80 kg/m3) Core Density 2 in 51 mm 420 lbs 191 kg Hammerhead with 7 lb/ft3 (115 kg/m3) Core Density 2 in 51 mm 370 lbs 168 kg Hammerhead with 8 lb/ft3 (135 kg/m3) Core Density 2 in 51 mm 332 lbs 151 kg Marine Plywood 2 in 51 mm 984 lbs 446 kg Glass/Polyester with Balsa Core 2 in 51 mm 1298 lbs 589 kg Hammerhead with 5 lb/ft3 (80 kg/m3) Core Density - ITW Plexus MA420 Adhesive NA 501 lbs 227 kg Hammerhead with 7 lb/ft3 (115 kg/m3) Core Density - ITW Plexus MA420 Adhesive NA 839 lbs 381 kg Hammerhead with 8 lb/ft3 (135 kg/m3) Core Density - ITW Plexus MA420 Adhesive NA 1156 lbs 524 kg Hammerhead with 8 lb/ft3 (135 kg/m3) Core Density - Crestomer 1152PA Adhesive NA 1530 lbs 694 kg Hammerhead with 8 lb/in3 (135 kg/m3) Core Density - Crestomer M1-30 Adhesive NA 1471 lbs 667 kg Mixed Conditions ADHESIVE DESCRIPTION ADHESIVE GRADE MANUFACTURER AVERAGE BOND STRENGTH STANDARD DEVIATION FAILURE MODE BEST ADHESION 2k Urethane 75421 Lord 2281 psi 15.73 MPa 184 psi 1.27 MPa Substrate Cohesive 2k Acrylic SA1-705 GRY1 AccraLock 2211 psi 15.24 MPa 78 psi 0.54 MPa Substrate 2k Acrylic Plexus MA420 ITW 2171 psi 14.97 MPa 262 psi 1.81 MPa Substrate 2k Acrylic SA10-05 Blk1 AccraLock 2102 psi 14.49 MPa 138 psi 0.95 MPa Substrate 2k Urethane 75451 Lord 2047 psi 14.11 MPa 68 psi 0.47 MPa Cohesive 2k Acrylic SA1-705 GRY 1:2 AccraLock 1966 psi 13.56 MPa 68 psi 0.47 MPa Substrate 2k Acrylic Scotchweld 8010 3M 1907 psi 13.15 MPa 61 psi 0.42 MPa Adhesive Cyanoacrylate Gorilla Glue Gorilla Glue 1885 psi 13.00 MPa 432 psi 2.98 MPa Cohesive 2k Acrylic Crestabond PP-04 Scott Bader 1873 psi 12.91 MPa 281 psi 1.94 MPa Substrate  2k Acrylic SA10-05 Blk 10:2 AccraLock 1779 psi 12.27 MPa 127 psi 0.88 MPa Cohesive 2k Urethane 75422 Lord 1716 psi 11.83 MPa 190 psi 1.31 MPa Cohesive Adhesive 2k Urethane 75452 Lord 1535 psi 10.58 MPa 98 psi 0.68 MPa Adhesive 2k Methacrylate Polyfuse Icon Containment 1610 psi 11.10 MPa 98 psi 0.68 MPa Adhesive INTERMEDIATE ADHESION 2k Acrylic FA10-05 Blk C010817 AccraLock 724 psi 4.99 MPa 58 psi 0.40 MPa Cohesive 2k Acrylic FA10-05 Blk1 AccraLock 722 psi 4.98 MPa 44 psi 0.30 MPa Cohesive 2k Epoxy Loctite Epoxy Instant Mix Loctite 508 psi 3.50 MPa 81 psi 0.56 MPa Adhesive 2k Epoxy Gorilla Glue Epoxy Gorilla Glue 341 psi 2.35 MPa 198 psi 1.37 MPa Adhesive NOT RECOMMENDED  2k Epoxy Loctite Epoxy Marine Loctite 0 0 No bond ADHESIVE SELECTION Brands identified are owned by the manufacturers of the adhesive products. 1 surface sanded with 220 grit scuff prep 2 surface primed with 459T FASTENER TYPE BENEFITS CONSIDERATIONS Through-Bolting Best mechanical locking system Need back side access to panel Screw-In Anchor Highest pullout strength Requires pilot hole Cup Washer Spreads compressive load Requires relief hole; For substructure and hard point attachment Wide Grip (Bulb-Style) Rivet Ease of use—no installation torque limitations For lower load attachments Sheet Metal or Wood Screw Readily available, low cost Penetrate both skins for improved pullout Shoulder Washer Limits compressive load Requires relief hole; For substructure and hard point attachment For more information on installation, adhesives, and fasteners for specific applications, please contact Avient.

Structural foam molding machines (Figure 1) are equipped with a plasticizing extruder and a separate transfer cylinder for quicker injection. Typical let-down ratios for Hydrocerol concentrates are 1–3%. PHASE 1: MIXING AND ACTIVATING The CFA is mixed into the melt for maximum distribution and then activated in the barrel, to release the gases.

激光打标⸺提高标识的可靠性和持久性，适用于所有类型的电缆护套 和绝缘材料 抗茵⸺保护电缆，避免滋生有害霉菌和细菌 防鼠咬功能母料⸺保护电缆，有效防止鼠类啃咬 防白蚁功能母料⸺保护电缆，有效防止白蚁侵蚀 成核剂⸺保持临界尺寸，调节收缩特性 发泡剂⸺减轻质量，降低树脂成本 紫外线稳定剂⸺保护树脂材料，延长产品寿命 抗氧化剂⸺维持物理属性 加工助剂⸺降低部分材料的口模流涎 适用于电力电缆应用的 ONCOLORTM 解决方案 建议使用量为 1-2%，使用量可能因具体用途、工艺、设备和树脂级别不同而存在差异。 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 (深蓝) 蓝色 (浅蓝) 黄色 橙色 棕色 紫色 粉色 米色 黑色 白色 红色 灰色 绿色 蓝色 海蓝色 黄色 橙色 棕色 紫色 粉色 产品编号 规格描述 颜色 适用于汽车电线的 ONCOLORTM 解决方案 适用于交联材料如 XLPE 的 EVA 色母料，以及适用于 T1、T2 和 T3 耐热等级要求的 PVC 色母料 建议使用量为 1-2%，使用量可能因具体用途、工艺、设备和树脂级别不同而存在差异 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 海蓝色 黄色 橙色 棕色 紫色 粉色 黑色 白色 红色 灰色 绿色 蓝色 (深蓝) 蓝色 (浅蓝) 黄色 橙色 棕色 紫色 粉色 米色 产品编号 规格描述 颜色 适用于通信电缆和光缆应用的 PVC 和 PBT 色母料 适用于发泡和固体绝缘应用的 PE 色母料 为交联材料如 XLPE 专门设计的 EVA 色母料 所有材料建议使用量为 1-2%，使用量可能因具体用途、工艺、设备和合成树脂级不同而存在差异 适用于通信线缆应用的 ONCOLORTM 解决方案 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 海蓝色 黄色 橙色 棕色 紫色 粉色 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 (深蓝) 蓝色 (浅蓝) 黄色 橙色 棕色 紫色 粉色 米色 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 海蓝色 黄色 橙色 棕色 紫色 粉色 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 海蓝色 黄色 橙色 棕色 紫色 粉色 产品编号 规格描述 颜色 黑色 白色 红色 灰色 绿色 蓝色 橙色 黄色 棕色 紫色 海蓝色 粉色 产品编号 规格描述 颜色 白色 红色 灰色 绿色 蓝色 橙色 黄色 棕色 紫色 粉色 适用于室外线缆应用的抗紫外色母料 建议 PE 材料使用量为 2%，PVC 材料使用量为 3%，使用量可能因具体用途、工艺、设 备和树脂级别不同而存在差异 www.avient.com 版 权 所 有 © 2020埃 万 特 公 司 。

1616267 Certification Effective Date: April 1, 2021 Issue Date: March 30, 2021 Certificate Expiry Date: March 31, 2024 ________________________________________________________________________________ ISO 9001 Registered by: QMI-SAI Canada Limited (SAI Global), 20 Carlson Court, Suite 200, Toronto, Ontario M9W 7K6 Canada.

AS9100 Certication DEKRA CERTIFICATE Certificate Number: 131789.01 The Aerospace Quality Management System and implementation of: Fiber-Line, LLC With Central Functions At: 3050 Campus Drive Hatfield, PA 19440 United States The certification has been performed in accordance with the requirements of AS9104/1:2012, including its implementation, and meets the requirements of the standard: AS9100D (Based on and including ISO 9001:2015) Scope: The value added design and development of synthetic fiber products for use in public and private sectors.

DEVICE MANUFACTURER M E D I C A L D E V I C E H O U S I N G • Improved chemical resistance compared to PC/ABS, PC/PET & COPE • Flame retardant (FR) rating of V-1 at 0.75 mm • Zero BPA & non-halogenated FR material • Available in standard hospital grade pre-colors • Provided a cost-effective material with superior chemical resistance to traditional materials • Formulated a medical-grade, semi-crystalline blend to support regulatory testing and approvals • Demonstrated superior property retention and crack resistance after exposure to hospital- grade disinfectants, including Virex® Tb, helping to extend the device life Trilliant™ HC8900 Thermoplastics KEY REQUIREMENTS WHY AVIENT?

OFC MANUFACTURER 5 G H Y B R I D C A B L E J A C K E T I N G & I N S U L A T I O N • Fire performance: reduce smoke and fume production, high flame and char resistance • Reduce development time • Meet required standards: UL 1581 (Class XL) mechanical properties , UL 1685 (flame test/smoke parameters), FT2 & FV2 (VW1) • Accelerated speed to market, reducing development time to three months • Instilled confidence and proved material expertise as solutions passed extensive testing ahead of competition • Optimized cable manufacture process and line speed following trials at customers facility ECCOH 5549/1 LDD & Syncure™ S100FH KEY REQUIREMENTS WHY AVIENT?

DIAGNOSTICS MANUFACTURER C O V I D - 1 9 C O N T A I N M E N T T U B E S C R E W C A P S • Wide range of durometers with consistent raw materials • Processing consistencies across the durometer ranges for an easy transition between materials • Materials formulated without animal derivatives at a competitive cost • Offered a comprehensive range of solutions to accommodate specific application demands such as barrier, flexibility, and sealing performance • Provided materials manufactured in an ISO 13485 certified facility • Delivered a series of medical-grade TPEs that could be extruded and injection molded Versaflex™ HC 3810 Thermoplastic Elastomers KEY REQUIREMENTS WHY AVIENT?