K S C Co., Ltd, Youngkyu Park and Jiyoung Yoon agreed to acquire 62.5% stake in Kos Tech Co., Ltd. from NPK Co., Ltd. (KOSDAQ:A048830) for KRW 830 million on March 25, 2019. K S C Co., Ltd, Youngkyu Park and Jiyoung Yoon will acquire 0.022 million, 0.022 million and 0.006 million shares respectively of Kos Tech Co., Ltd. K S C Co., Ltd, Youngkyu Park and Jiyoung Yoon cancelled the acquisition of 62.5% stake in Kos Tech Co., Ltd. from NPK Co., Ltd. (KOSDAQ:A048830) on March 25, 2020.