Mikhail Valentinovich Kovalchuk (Russian: Михаил Валентинович Ковальчук; born 21 September 1946) is a Russian physicist and official. He is a brother of Yury Kovalchuk, known as "Putin's personal banker".
Mikhail Valentinovich Kovalchuk (Russian: Михаил Валентинович Ковальчук; born 21 September 1946) is a Russian physicist and official. He is a brother of Yury Kovalchuk, known as "Putin's personal banker".