Avellum Partners

Sergiy Oleksiyenko, a former financial whiz who has held several posts in Ukraine’s oil and gas industries, set up an...

Petro Poroshenko is Ukraine’s president and a wealthy businessman with interests in automotive plants, a shipyard, a...

Sergiy Oleksiyenko is a board member of Ukrtransgaz, a wholly-owned subsidiary of the state oil and gas company Naftogaz,...

For six days in April, President Petro Poroshenko and his lawyers repeatedly said that none of the offshore companies...