Black Swan Fund Ltd agreed to acquire 5.2% in Y-Optics Manufacture Co., Ltd. (KOSDAQ:A066430) from Dandong Dongfa(Group) Co., Ltd. for KRW 8.5 billion on June 21, 2018. As per terms of the agreement, 0.6 million shares are acquired for KRW 0.01 million per share. Black Swan Fund Ltd cancelled the acquisition of 5.2% in Y-Optics Manufacture Co., Ltd. (KOSDAQ:A066430) from Dandong Dongfa(Group) Co., Ltd. on July 20, 2018.