LABORATORY EQUIPMENT MANUFACTURER P C R W E L L P L A T E S • Very high level of TiO2 to prevent “cross-talk” between the wells during the qPCR fluorescence testing procedure • Minimized background phosphorescence caused by agglomeration of TiO2 and/or oxidized (stressed) polystyrene • Preservation of polystyrene grade properties • Change control of formulation and manufacturing process • Robust product quality from batch to batch • Developed optimally dispersed, ready-to-use white formulation that maintains adequate signal transmission, as well as minimizing “cross-talk” and background phosphorescence • Optimized the use of general purpose polystyrene (GPPS) for a good balance between melt flow and other physical properties, such as stiffness • Provided comprehensive change control of raw materials and formulation, with a robust manufacturing process and quality control under a third party ISO 13485:2016 certified QMS Mevopur Healthcare Colorants and Formulations – pre-colored solution WHY AVIENT? AVIENT SOLUTION PERFORMANCE + CONSISTENT QUALITY LEARN MORE KEY REQUIREMENTS © 2025 Avient Corporation.

WOON KEAT MOH Senior Vice President, President Color, Additives & Inks–Americas and Asia Woon Keat Moh (“Moh”) is senior vice president, president, Color, Additives & Inks, Americas and Asia regions for Avient Corporation, a premier provider of specialized and sustainable material solutions and services. This has included Sales Director for Avient’s Color and Additives segment in Asia and General Manager of Engineered Materials Asia. He is based in Avient’s world headquarters located outside Cleveland, Ohio.