(unofficial translation)
The Government of the Republic of Korea has decided to terminate the Agreement between the Government of the Republic of Korea and the Government of Japan on the Protection of Classified Military Information (GSOMIA), and in accordance with its provisions, will notify the Government of Japan through diplomatic channels before the extension deadline.
The Government of the Republic of Korea concluded that the Government of Japan has brought about fundamental changes to the environment for security cooperation between the two countries, by removing the Republic of Korea from of the Appended Table 3 (also known as the White List) of the Export Trade Control Order on August 2nd. The rationale was that a national security problem had arisen due to a breach of trust, yet no concrete evidence to support those allegations was presented.
Under these circumstances, the Government of the Republic of Korea decided that maintaining this Agreement, which was signed to facilitate the exchange of sensitive military information, does not serve our national interest.