LONDON, May 10 (Reuters) - * Oil trading firm Litasco's director of trading, Mikael Bonalumi, has left the company, said two sources familiar with the development
* Bonalumi previously worked for Total and Elf Trading.
* In April Litasco appointed Nazim Suleymanov as chief executive.
* Previous chief and BP veteran Tim Bullock became a non-executive director on the Litasco board.
* Litasco, the trading arm of Russian oil major Lukoil , was not immediately available for comment. (Reporting by Dmitry Zhdannikov and Ron Bousso Editing by David Goodman)