On the morning of 24 February 2023, His Excellency Ouch Borith, Minister Delegate attached to the Prime Minister and Standing Secretary of State of the Ministry of Foreign Affairs and International Cooperation, had a meeting with His Excellency Takei Shunsuke, State Minister for Foreign Affairs of Japan. Following the meeting, both sides signed the Exchange of Notes on the extension of Japanese Grant Aid at the amount of JPY 3,986,000,000 (approximately USD 30,600,000) for a development cooperation project in favor of the expansion of water supply system in Svay Rieng Province.

The above-mentioned Exchange of Notes is an amendment to the amount stated in the previous Exchange of Notes signed on 02 March 2022.