"China will begin to adjust the relevant measures based on scientific evidence and gradually resume imports of Japanese aquatic products that meet the regulation requirements and standards," a foreign ministry statement said.

Chinese and Japanese officials recently conducted "multiple rounds of consultations" on the discharge of water from the stricken Fukushima Daiichi nuclear power station, the ministry said.

It said Japan had committed to "fulfilling its obligations under international law, doing its utmost to avoid leaving (a) negative impact on human health and the environment, and conducting continuous evaluations of the impact on the marine environment and marine ecosystems".

In 2011, three reactors at the Fukushima-Daiichi facility in northeastern Japan went into meltdown following a massive earthquake and tsunami that killed around 18,000 people.

Since then, plant operator TEPCO collected water contaminated as it cooled the wrecked reactors, along with groundwater and rain that has seeped in.

- Fierce backlash -

Japan in late August 2023 began discharging treated contaminated water from the Fukushima plant into the Pacific Ocean in an operation it insists is safe, a view backed by the UN atomic agency.

The release, however, generated a fierce backlash from China, which branded it "selfish" and banned all Japanese seafood imports.

China's foreign ministry said in its statement Friday that Tokyo welcomed the establishment of a "long-term international monitoring arrangement within the International Atomic Energy Agency (IAEA) framework covering key stages in the discharge of the nuclear-contaminated water".

"Both sides agree to continue to have constructive, science-based dialogue with a great sense of responsibility for the ecosystem, the environment, and human life and health," it added.

Around the same time as the announcement, Japanese Prime Minister Fumio Kishida said Tokyo had "informed the Chinese side of its readiness to carry out additional monitoring of the... treated water, while the Chinese side has decided to... steadily restore imports of Japanese fishery products that meet certain standards".

Despite the gradual resumption of seafood imports, a spokeswoman for Beijing's foreign ministry said China still "resolutely opposes" Japan's discharge of water from Fukushima.

"First of all, China resolutely opposes the Japanese side's arbitrary discharge (of contaminated water) into the sea," spokeswoman Mao Ning told a regular press conference, adding: "This position has not changed."

China imported over $500 million worth of seafood from Japan in 2022, according to customs data.