TOYO CONSTRUCTION CO., LTD.

　Toyo Construction Co., Ltd. (President and Representative Director: Kyoji Takezawa) visited Children and
Families Agency on April 19th and presented a donation catalog to the “Children’s Future Support Fund”.

　Last year, the Company installed vending machines that automatically donate 10 yen per bottle
to the Children’s Future Support Fund, and now, based on the belief that we would be able to support children,
who will bear Japan’s future, as much as possible, we raised contributions from our officers and staff by setting
a collection box at the head office building at the end of last fiscal year.

　On the day, as it was the first catalog presentation since the establishment of Children and Families Agency,
it was handled by staff of Family Welfare Division of Support Bureau. Also, we received a proposal for
possible support measures as a construction company, which serves as a future reference for the Company.

　We will continue to conduct supporting activities for children to the best of our ability.

　Upon completion of the “Flood Risk Management Project for Cagayan de Oro River Contract (Package 2)”
constructed by the Company in the Republic of the Philippines, the completion ceremony was held on
May 26th 2023, which was attended by approximately 200 people, including Mr. Bonoan, the Secretary of
the Department of Public Works and Highways of Philippines, and concerned personnel of Embassy of Japan in
the Philippines and JICA Philippines office, and Mr. Shuichi Aikawa, General Manager of International Division.

　This project is an official development assistance (ODA) with Japan’s yen loan intended to control and
mitigate the flood risk in the area, based on the significant disaster experience from the major typhoon
(local name: Sendong) that hit Mindanao area of the country in December 2011.
The Company conducted the construction of embankment and revetment in Cagayan de Oro river basin,
adopting the static sand compaction pile construction method, a Japanese technology.

　At the ceremony, courteous gratitude to Japan’s support through ODA was expressed by Secretary Bonoan
and other guests, and expectations for safety and convenience in the area by this project was also expressed.

　The Company, since 1973 when it started operations in the country, has participated in
various projectsover approximately 50 years.
Currently, we are working on the Pasig-Marikina River Channel Improvement Project
(Package 2, Package 3※) which was ordered in July 2021.

※ Package 3 is conducted by JV of Toyo and Shimizu.

　For economic development of the Philippines and realization of the “high-quality infrastructure improvement”
promoted by Japanese government, the Company will make significant contribution by deploying our technologies
through construction works and developing precious local human resources.

Unveiling ceremony of completion plaque

Scene of ribbon-cutting ceremony by people concerned

Shooting from upstream①

Shooting from upstream②

Shooting from downstream①

Shooting from downstream②

Supplementary Explanatory Material Regarding Opinion of the Board of Directors dated June 12

The Opinion of the Company’s Board of Directors regarding the Report of the Proxy Advisory Firm ISS and YFO’s Press Release concerning Such Report

Regarding Yamauchi-No. 10 Family Office’s Press Release Dated June 15, 2023

Regarding the “Recommendation to Support” All Director and Corporate Auditor Candidates Proposed by the Company in the Report of the Proxy Advisory Firm Glass, Lewis & Co., LLC

Summary of Consolidated Financial Results for the Year Ended March 31, 2023 (Based on Japanese GAAP)

Notice of Partial Amendment to the Articles of Association

Presentation Meeting on the Mid-Term Business Plan

Matters Omitted from the Notice of the 101st Annual General Meeting of Shareholders

Business Report

Notice of the 101st Annual General Meeting of Shareholders

The Opinion of the Company’s Board of Directors Regarding the Damage to the Company’s Corporate Value if the Director and Corporate Auditor Candidates Proposed by YFO are Elected and YFO’s Press Release Dated June 19, 2023

Supplementary Material regarding the Process of Election of the Company’s Director Candidates

Notice of Resolutions of the 101th Annual General Meeting of Shareholders

Financial Results Supplementary Material For the Ended March 31, 2023

Summary of Consolidated Financial Results for the Year Ended March 31, 2023 (Based on Japanese GAAP)

Notice of Partial Amendment to the Articles of Association

Presentation Meeting on the Mid-Term Business Plan

Summary of Consolidated Financial Results for the Three Months Ended June 30, 2023 (Based on Japanese GAAP)

Presentation of donation catalog to Children and Families Agency

Republic of the Philippines Completion ceremony of the Flood Risk Management Project for Cagayan de Oro River Contract (Package 2) was held.