Introduction of the Report

RichWave Technology Corp. (hereinafter referred to as RichWave or the Company) voluntarily started publishing the corporate sustainability report in 2022 to demonstrate the Company’s commitments, actions, and accomplishments in ESG-related issues, as well as facilitate good communication and interaction with our stakeholders. Except for the financial data covering RichWave's subsidiaries, the scope of this Sustainability Report covers RichWave's business locations in Taiwan. During the reporting period, the Company’s organizational scale, structure, ownership, and supply chain did not undergo significant changes.

Reporting Time, Scope, and Publication Period

RichWave’s fifth ESG report discloses data and content for 2025 (January 1 to December 31, 2025). Some of the performance data dates back to 2023 and 2024 to illustrate relevant trends and fluctuations. This report was discussed and approved by the Sustainable Development Committee and the Board of Directors on July 30, 2026.

Publication time of this report:July 2026

Scheduled publication time of next report:July 2027

Report Preparation Guideline

The information disclosed in this report is prepared in accordance with the GRI Universal Standards 2021 published by the Global Reporting Initiative (GRI), and a GRI Standards Content Index is attached to the end of the report for reference. The report’s relevant statistics and data are derived from RichWave’s own investigation and statistics of the daily operations/ management. Moreover, local regulations, internationally accepted indicators, industry standards, or industry customs are taken into consideration when performing the calculations.

The Company also actively monitors the relevant regulations of the competent authority’ s “Sustainable Economic Activity Reference Guidelines.” After reviewing the second edition of the “Sustainable Economic Activity Reference Guidelines” released at the end of 2024, RichWave’s industry has not yet been included, so it is not applicable for the time being. However, the Company will continue to track the guideline’s updates and will evaluate and disclose its status once the IC design industry is included in the future.

External Assurance and Verification

The Company has engaged PwC Taiwan to provide independent limited assurance on specific key performance information in accordance with Statement on Assurance Engagements Bulletin No. 3000, “Assurance Engagements Other than Audits or Reviews of Historical Financial Information.” Please refer to the appendix of this report for the assurance report.

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RichWave Technology Corp.

Contact number:(02)8751-1358

Contact person:Wendy Juan

E-mail:wendyjuan@richwave.com.tw

Address:3F., No. 1, Alley 20, Lane 407, Sec.2, Tiding Blvd., Neihu District, Taipei City 11493