Securities Report – 75th Fiscal Period (2025/04/01 – 2026/03/31)

Ryuseki Corporation – Securities Report – 75th Fiscal Period (2025/04/01 – 2026/03/31)

This report is prepared by Ryuseki Corporation (hereinafter referred to as “the Company”) in accordance with Article 24 of the Financial Instruments and Exchange Act, covering the Company’s business performance and financial condition for the 75th fiscal period (from April 1, 2025 to March 31, 2026).

The Company’s primary businesses include the manufacturing and sales of construction materials, civil engineering contracting, and environmental-related services. Since its establishment, the Company has been committed to building a sustainable society through the development of recycling technologies and the reduction of environmental impact.

This report contains consolidated and individual financial statements, management policies, business risks, executive compensation, and share-related information. It aims to serve as a vital source of information for investors, shareholders, creditors, business partners, employees, and other stakeholders.

For details on the Company’s financial condition, please refer to the financial statements provided later in this report. Business performance can be assessed through key indicators such as net sales, operating income, and net profit.

Additionally, the report outlines changes in the business environment and future strategic initiatives, demonstrating efforts toward enhancing long-term corporate value. Specific emphasis is placed on advancing ESG management, accelerating digital transformation, and exploring potential expansion into global markets.

In preparing this report, accuracy and transparency have been prioritized, and the Company has complied with timely disclosure requirements to the Financial Services Agency and the Tokyo Stock Exchange. Going forward, the Company will continue to strengthen stakeholder trust by enhancing the quality and accessibility of its disclosures.