The Yonhap News Agency is reporting that the Pirates have not exercised their 2019 option on infielder Jung-ho Kang. This was based on his being listed as having elected free agent on the Pirates’ website, although in a quick search I was not able to verify that.
A link to the article: http://english.yonhapnews.co.kr/news/2018/10/31/0200000000AEN20181031007400315.html