Seung-Hyun Tak and Eun-Young Tak acquired a 1.66% stake in IKSemicon Co., Ltd. from Kyung-Duk Yoon for KRW 100 million in cash on January 23, 2015. Seung-Hyun Tak and Eun-Young Tak each acquired 0.025 million shares at the price of KRW 2,000 per share.

Seung-Hyun Tak and Eun-Young Tak completed the acquisition of a 1.66% stake in IKSemicon Co., Ltd. from Kyung-Duk Yoon on January 23, 2015.