Kyeong-seop Yoon is a partner in the White Collar Crime Group. His practice covers criminal defense, North Korea matters, and civil & criminal court litigation with a special focus on defense industry, healthcare, capital markets, antitrust & competition cases.

Prior to joining Lee & Ko, he worked as a public-service advocate for Korea Legal Aid Corporation and the Ministry of Justice of the Republic of Korea.

At Lee & Ko, Mr. Yoon successfully carried out several corporate criminal cases, many of which have received wide media coverage in various fields such as military procurement and food sanitation.