We have undertaken a limited assurance engagement in respect of the selected sustainability information (the ‘Identified Sustainability Information') in the Coway’s Web Sustainability Report for the year ended 31 December 2022 ('the Sustainability Report') listed below.

The Identified Sustainability Information included in the Coway’s Web Sustainability Report (http://sustainability.coway.com) for the year ended 31 December 2022 is summarized below:

Our assurance was with respect to the year ended 31 December 2022 information only and we have not performed any procedures with respect to earlier periods or any other elements included in the Sustainability Report and, therefore, do not express any conclusion thereon.

The criteria used by Coway to prepare the Identified Sustainability Information on ‘GRI Standards 2021’ and ‘Sustainability Accounting Standard Board (SASB)’ and’ TCFD (Force on Climate-related Financial Disclosures)(the 'Criteria').

Coway is responsible for the preparation of the Identified Sustainability Information in accordance with the Criteria. This responsibility includes the design, implementation and maintenance of internal control relevant to the preparation of Identified Sustainability Information that is free from material misstatement, whether due to fraud or error.

The absence of a significant body of established practice on which to draw to evaluate and measure non-financial information allows for different, but acceptable, measures and measurement techniques and can affect comparability.

We have complied with the ethical requirements of the Republic of Korea, which is founded on fundamental principles of integrity, objectivity, professional competence and due care, confidentiality and professional behavior. Our firm applies International Standard on Quality Control 1 and accordingly maintains a comprehensive system of quality control including documented policies and procedures regarding compliance with ethical requirements, professional standards and applicable legal and regulatory requirements.

Our responsibility is to express a limited assurance conclusion on the Identified Sustainability Information based on the procedures we have performed and the evidence we have obtained. We conducted our limited assurance engagement in accordance with International Standard on Assurance Engagements 3000 (Revised), Assurance Engagements other than Audits or Reviews of Historical Financial Information issued by the International Auditing and Assurance Standards Board. These standards require that we plan and perform this engagement to obtain limited assurance about whether the Identified Sustainability Information is free from material misstatement. A limited assurance engagement involves assessing the suitability in the circumstances of Coway’s use of the Criteria as the basis for the preparation of the Identified Sustainability Information, assessing the risks of material misstatement of the Identified Sustainability Information whether due to fraud or error, responding to the assessed risks as necessary in the circumstances, and evaluating the overall presentation of the Identified Sustainability Information. A limited assurance engagement is substantially less in scope than a reasonable assurance engagement in relation to both the risk assessment procedures, including an understanding of internal control, and the procedures performed in response to the assessed risks.

Given the circumstances of the engagement, in performing the procedures listed above we:

• Interview with the personnel responsible for internal reporting and data collection regarding Coway’s Identified Sustainability Information to understand their approaches to managing material issues
• Review documents relevant to output from the risk assessment process, sustainability-related policies and standards, materiality assessment, engagement activities of the stakeholders and others
• Understand the systems and processes in place for managing and reporting the Identified Sustainability Information of Coway Seoul office
• Perform inquiries and analytical reviews on the Identified Sustainability Information.

The procedures performed in a limited assurance engagement vary in nature and timing from, and are less in extent than for, a reasonable assurance engagement. Consequently, the level of assurance obtained in a limited assurance engagement is substantially lower than the assurance that would have been obtained had we performed a reasonable assurance engagement. Accordingly, we do not express a reasonable assurance opinion about whether Coway’s identified Sustainability Information has been prepared, in all material respects, in accordance with the Criteria.

Based on the procedures we have performed and the evidence we have obtained, nothing has come to our attention that causes us to believe that Coway’s Identified Sustainability Information the year ended December 31, 2022 is not prepared, in all material respects, in accordance with the Criteria.

This Report is prepared solely for the management of Coway to assist in obtaining understanding of Coway's sustainable management performance and activities. Accordingly, we accept no liability or responsibility to any third party, other than Coway and its management, who gains access to this report.