Imports were suspended in November 2023, when Chinese authorities stopped renewing import permits to fish farms once they expired.

From The Japan Times

Imports were suspended in November 2023, when Chinese authorities stopped renewing import permits to fish farms once they expired.

Source: https://www.japantimes.co.jp/news/2024/10/22/japan/china-import-koi/

China resumes imports of Japanese koi fish - The Japan Times - #News #Japan