These are provided as concentrates, a.k.a. masterbatches, which are incorporated in the fibers during yarn manufacturing (extrusion) with the spin-dyeing technology, a dyeing technology that uses no water and reduced energy compared to other conventional dyeing methods. These specially formulated concentrates are used in the production of mosquito nets to provide efficient and durable protection from mosquitos through controlled release of the insecticide.  These liquid concentrates, which are injected in the spun-dyed polymer melt, provide excellent color fastness and allow rapid color changes.

Laser marking additives provide high levels of contrast with permanent and repeatable markings. They also provide a high degree of control in marking polymers with speed and clarity.   They provide a long-lasting, easy-to-read mark that is resistant to solvents, oils, and scratching.

Including the following remote support functions: Polyone Corporation 33587 Walker Road Avon Lake, OH 44012 USA Audited by ABS Quality evaluations Product Design, Purchasing, Customer Service and Strategic Planning Location Registered Activities BSI Certificate Number: 85585 IATF Number: 0315491 Certification Date: 2018-07-11 Latest Issue: 2018-07-11 Expiry Date: 2021-07-10 Page: 2 of 2 This certificate remains the property of BSI and shall be returned immediately upon request.

_______________________ Vice President, Accreditation Services For the Accreditation Council Certificate Number 0514.02 Valid to December 31, 2019 Revised October 08, 2019 0514-02.pdf SCOPE OF ACCREDITATION TO ISO/IEC 17025:2005 Test Method or Standard: Test Description: 0514-02c.pdf

Date Registered ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment XU TAO EB6238077 CHINESE 30/06/2021ACRA DirectorROOM 102, BUILDING 20, SUB LANE 7, LANE 888, LUOJIN ROAD SHANGHAI, 201104, CHINA CHAN BAI RONG S8534833G SINGAPORE CITIZEN 30/06/2021ACRA Director10A BENDEMEER ROAD #26-103 BENDEMEER LIGHT SINGAPORE (331010) LEE SAY ENG A52290094 MALAYSIAN 30/06/2021ACRA Page 2 of 4 ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment Director168 JINAN ROAD, BUILDING 10, ROOM 802, SHANGHAI CHINA 200021 CHAN LAI YIN S7480587F MALAYSIAN 28/06/2010ACRA Secretary26 SIMEI STREET 1 #11-08 MELVILLE PARK SINGAPORE (529947) LEE WEI HSIUNG S7927166G SINGAPORE CITIZEN 01/12/2009ACRA Secretary633 JURONG WEST STREET 65 #10-310 SINGAPORE (640633) Shareholder(s) Name ID Nationality/Citizenship Place of incorporation/ Origin/Registration Address Changed AVIENT CORPORATION T05UF0103G UNITED STATES OF AMERICA ACRA1 33587 WALKER ROAD, AVON LAKE, OHIO 44012, UNITED STATES OF AMERICA Ordinary(Number) Currency 694600 SINGAPORE, DOLLARS Ordinary(Number) Currency 7200000 UNITED STATES OF AMERICA, DOLLARS Page 3 of 4 Abbreviation UL - Local Entity not registered with ACRA UF - Foreign Entity not registered with ACRA AR - Annual Return AGM - Annual General Meeting FS - Financial Statements OSCARS - One Stop Change of Address Reporting Service by Immigration & Checkpoint Authority.

_______________________ Vice President, Accreditation Services For the Accreditation Council Certificate Number 0514.02 Valid to December 31, 2021 Revised September 21, 2021 0514-02s SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 Test Method or Standard: Test Description: 0514-02c

Colorants & Additives Value-Added Services Learn more about Avient's world-class services. Provide the ultimate protection for non-carbonated products and carbonated beverages

Our offerings extend beyond materials, with services ranging from engineering support to industrial design services. Providing excellent chemical resistance, low moisture uptake, dimensional stability, and high impact and wear resistance for a high-performing and more eco-conscious alternative to nylons. Learn more about our advanced composites and collaborative solutions-based services

Avient will provide additional details on its 2024 first quarter and 2024 outlook during its webcast scheduled for 8:00 a.m. The Company does not provide reconciliations of forward-looking non-GAAP financial measures, such as adjusted EPS and adjusted EBITDA, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

is a premier provider of specialized polymer materials, services and solutions. Adjustments to reconcile net income to net cash provided by operating activities: Net cash provided by operating activities