The negotiation ran into trouble extremely as Incheon was the outer harbor of Hanseong, the capital of Korea, but Korea compromised and notified Japan of their acceptance in February 1881.
仁川は朝鮮の首都漢城の外港にあたる地であるため交渉は非常に難航したが、朝鮮側が妥協して1881年2月受諾を通告してきた。