E&F Marble Holdings Co.,Ltd. acquired 6.7% stake in CENOTEC Co., Ltd. (KOSDAQ:A222420) from Jong-Bong Kang for KRW 10.8 billion on December 15, 2017. E&F Marble Holdings Co.,Ltd. acquired an additional 2.6 million shares at KRW 4100 per share. E&F Marble Holdings Co.,Ltd. completed the acquisition of 6.7% stake in CENOTEC Co., Ltd. (KOSDAQ:A222420) from Jong-Bong Kang on December 15, 2017.