In 1627, Abahai sent Amin to conquer Korea and forced the latter to sign the Ryugyong Treaty whose aim was to build the trade relation with Korea.

• 天聪元年(1627)皇太极派阿敏出征朝鲜，强迫朝鲜与后金结成“平壤之盟”，其重要目的就是建立起与朝鲜的贸易关系。