Joonggun Oh acquired an additional 1.3% stake in Lightron Inc. (KOSDAQ:A069540) from Youngkyu Im for approximately KRW 520 million on November 16, 2017. Under the terms of transaction, Joonggun Oh acquired 0.09 million shares at KRW 5300 each. Upon completion, Joonggun Oh will hold 0.56 million shares in Lightron Inc. Joonggun Oh acquired an additional 1.3% stake in Lightron Inc. (KOSDAQ:A069540) from Youngkyu Im on November 16, 2017.