Japan government has planned to release into the sea more than 1 million tonnes of contaminated water from the destroyed Fukushima nuclear station.
The first release of water will take place in about two years, giving plant operator Tokyo Electric Power time to begin filtering the water to remove harmful isotopes, build infrastructure and acquire regulatory approval.
Japan has argued the water release is necessary to press ahead with the complex decommissioning of the plant after it was crippled by a 2011 earthquake and tsunami.
Nearly 1.3 million tonnes of contaminated wateris stored in huge tanks at the Fukushima Daiichi plant at an annual cost of about 100 billion yen ($912.66 million).
Sri Lankan government has signed an agreement with the state-run China Development Bank for a loan of $ 500 million.
Experts pointed out that the loan is being extended as Sri Lanka's foreign exchange reserves dropped to $ 4.05 billion in March 2021, the lowest since a currency crisis in 2008-2009.
Last month, Sri Lanka signed a 10 billion yuan (about $ 1.5 billion) currency swap deal with China for a three year period to be used for promoting bilateral trade and direct investment between the two countries.
Critics say the Chinese-funded infrastructure projects in Sri Lanka are not financially viable and that Colombo will face difficulties in repaying the loans.