China and Japan agree to joint development of the Chunxiao gas field in a disputed area of the East China Sea.
- BBC News
- South Korea announces plans to submit a claim to the United Nations to a larger portion of the East China Sea in a move which is likely to be disputed by the People's Republic of China and Japan.
- Japan's Chief Cabinet Secretary Yoshito Sengoku calls for the People's Republic of China to compensate for Japanese patrol boats damaged in a confrontation with a Chinese fishing boat in the East China Sea.
- Japanese prosecutors release the Chinese fishing boat captain recently captured in disputed waters in the East China Sea after pressure from the Chinese government.
- Japan summons China's ambassador, Cheng Yonghua, to Tokyo after a People's Liberation Army Navy warship sailed close to its territorial waters near the disputed Senkaku Islands in the East China Sea for the first time.
- As part of its wider military build up along the Japanese archipelagos in the East China Sea, Japan activates a new radar station on the island of Yonaguni that is close to the disputed Senkaku Islands.