Sehee Han acquired 10.66% stake in Hitron Systems Inc. (KOSE:A019490) from Youngdeok Choi on March 12, 2021. Sehee Han purchased 0.7 million shares of Hitron Systems Inc. Sehee Han completed the acquisition of 10.66% stake in Hitron Systems Inc. (KOSE:A019490) from Youngdeok Choi on March 12, 2021.