Andriy Klyuyev  Andriy Petrovych Klyuyev (, ), also spelled as Andrii Kliuiev or Kluev/Klyuev, is a Ukrainian businessman and politician, ranked as 7th "Most influential person in Ukraine" in 2011 by "Korrespondent". He is a former head of the Presidential Administration of Ukraine. Prior to this he was Secretary of the National Security and Defense Council of Ukraine for two years. His brother Serhiy Klyuyev is also politician and businessman. In 2006 experts estimated the joint assets of the Klyuyev brothers to be US$144 million. In June 2009, the Klyuyev brothers were ranked 48th in the "Korrespondent" 's list of Top 50 richest Ukrainians with the estimated wealth of US$227 million. As of 2011, the Klyuyevs own a mansion on a site near Vienna at Tulbing, Groissaustraße 12, and a large site at Rudyky (Рудики). He was last seen with Viktor Yanukovych in Balaklava, Ukraine in 2014. But has since been on Russian television shows. Klyuyev himself claims that he started to live in Donetsk in 2014, which he considers Ukrainian territory (although Donetsk is not controlled by Ukrainian authorities since the start of the War in Donbas in 2014). Andriy Klyuyev graduated from the Mining College of the Donetsk Politech Institute as a mining automation and mechanization engineer. He also earned his Candidate of Technical Sciences post-graduate degree in 1989. Klyuyev started working in 1983 as an underground miner at Zasyadko coal mine, then becoming a foreman at the Gorki Mine in 1984. After graduation he worked as the deputy chief and then chief of mine transport at Bilorichenska Mine (Voroshylovhradvuhillya state holding in Luhansk Oblast). From 1986 to 1991 Klyuyev conducted full-time postgraduate research at his alma mater. From 1991 to 1994, Andriy Klyuyev headed several coal mining-related machine building companies, including "Ukrpidshipnyk" SC which is widely mentioned as his own company. In March 2011, Ukrpodshipnik is headquartered in the same building in Ukraine as Activ Solar's Ukraine representative. Klyuyev and his younger brother Serhiy Klyuyev sold Active Bank in March 2013, as all stakes in solar business were sold in 2008 already.