Anwar said other issues being discussed between the two countries involved maritime boundaries and airspace, Berita Harian reported.

The prime minister said a technical team involving both nations had been established to discuss the various parameters related to these issues.

“These are complicated issues and, of course, as stated by (Singaporean) prime minister Lawrence (Wong), our approach is to handle it in a holistic manner.

“This is so that Singapore’s demands and Malaysia’s demands can be holistically considered and resolved in a way that leads to a win-win situation,” Anwar was quoted as saying in a joint press conference with Wong.

Wong arrived yesterday for a two-day official visit to Malaysia.

Singapore currently buys raw water from Johor at three sen per 1,000 gallons. The republic sells back treated water to Johor for 50 sen per 1,000 gallons.

In 2018, then prime minister Dr Mahathir Mohamad described the pricing as “ridiculous” and called for a renegotiation of the agreement.

Last month, deputy energy transition and water transformation minister Akmal Nasir said Johor and Putrajaya had decided against renegotiating the rates for raw water supplied to Singapore for the time being.

In 2023, then natural resources, environment and climate change minister Nik Nazmi Nik Ahmad said the government intended to review the Johor River Agreement 1962 with Singapore due to “certain issues”.