L E A D I N G A N T E N N A M A N U FAC T U R E R A N T E N N A C O M P O N E N T S • Extremely tight performance tolerance • Dielectric performance of 3 – 7Dk • Ability to utilize existing injection molding machinery • High mold flow index (MFI) • On demand material delivery • Provided technical support throughout the development of multiple, highly technical materials • Formulated high quality materials that aligned with stringent specification, at a cost effective price • Provided order flexibility, allowing customer to order on demand • Collaborated across the supply chain, enabling customer to take a premium solution to market that can reduce maintenance and construction costs for end users Custom PREPERM™ Low-Loss Dielectric Formulations KEY REQUIREMENTS WHY AVIENT?

Beggs is Senior Vice President and Chief Financial Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Beggs joined Avient in August 2020 and has more than 20 years of experience in finance and business leadership roles in both public and private organizations with an emphasis on specialty materials and diverse end markets. Prior to Hunt, she worked for Celanese Corporation, where she served in a variety of finance and business positions, including Vice President and Corporate Treasurer, and earlier as Chief Financial Officer of the materials solutions business.

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Goldman Sachs Basic Materials Conference May 21, 2014 • In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PolyOne Investor Presentation�Goldman Sachs �Basic Materials Conference �May 21, 2014 � Forward – Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Confirmation of Our Strategy Strategy and Execution Drive Results Proof of Performance & 2015 Goals Bridge to $2.50 Adjusted EPS by 2015 Innovation Drives Earnings Growth Unique and Innovative Solutions Debt Maturities & Pension Funding – 3/31/14 Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return Why Invest In PolyOne?

Vice President, Aerospace of Cytec Engineered Materials (a producer of specialty bonding adhesives and composite materials) from November 2009 to February 2016. The amounts involved have been and may continue to be material. now Silicor Materials Inc.)

So we’ve developed the ideal TPEs for your infant care application, from materials that are durable and safe for baby contact to regulatory compliant grades and soft-touch solutions Today’s infant care product manufacturers are searching for materials they can count on for durability, but they also need expanded design possibilities. Processing conditions can cause material properties to shift from the values stated in the information.

PRODUCT BULLETIN Cesa™ Nox A4R Additives for Recycling Polyolefin Antioxidant for Enhanced Recycling RECYCLED MATERIAL IN A CHANGING MARKET Legislation globally is driving change towards increased quantities of post-consumer recycled materials (PCR), further encouraged by the implementation of usage targets and new tariffs. Both legislation and industry goals have created an increased demand for recycled material across the plastics industry, but especially within the packaging market. Processing conditions can cause material properties to shift from the values stated in the information.

MATERIAL BREAKTHROUGH: VERSAFLEX™ CE BLUE JEAN STAIN RESISTANT TPES FOR WHITE OR LIGHT-COLORED PHONE CASES Phone case brands have struggled to design white or light-colored cases that do not stain when in contact with blue jeans. Processing conditions can cause material properties to shift from the values stated in the information. Processing conditions can cause material properties to shift from the values stated in the information.

For brand owners and OEMs to achieve this, they need materials free of surface blooms and ready to stand up to everyday wear and tear. These new materials integrate excellent aesthetics and functionality, including UV and stain resistance, without sacrificing mechanical properties. Processing conditions can cause material properties to shift from the values stated in the information.

COLORANTS & ADDITIVES FOR HEALTHCARE Essential polymer solutions for critical healthcare applications WHEN MATERIAL EXPERTISE IS CRITICAL AESTHETIC APPEAL Regulatory compliant and approved masterbatch colors use custom polymer colorants to achieve any shade SPECIAL EFFECTS Enhance your brand and stand apart with pearlescent, metallic, iridescent, fluorescent or thermo-chromatic effects SOLID TO LIQUID SOLUTIONS Choose from a full range of available color solutions, from liquid color to solid product forms ANTIMICROBIALS Efficacy performance and regulatory requirements are met in a wide range of resins compatible with Withstand™ antimicrobial technology SURFACE ENERGY MODIFICATION Additive technologies such as low retention, hydrophobic, lubricious, light diffusion, or anti-stat provide desired surface manipulation Materials used for today’s medical devices, parts and pharmaceutical packaging contribute significantly to performance and, in turn, to a patient’s health and well-being. Consistency and reliability in those materials are imperative for components designed to heal or even save lives. Processing conditions can cause material properties to shift from the values stated in the information.

Until now, silicone has been the only material for white or light-colored phone cases that resists staining when in contact with blue jeans. Processing conditions can cause material properties to shift from the values stated in the information. Processing conditions can cause material properties to shift from the values stated in the information.