The logo of Russian petrochemical company Sibur is seen on a board at the St. Petersburg International Economic Forum 2017 (SPIEF 2017) in St. Petersburg, Russia, June 1, 2017. Picture taken June ...

MOSCOW, Feb 13 (Reuters) - Russia's largest petrochemicals company, Sibur, plans in the first half of March to resume output at a plant that was suspended last month after a Ukrainian drone attack ...

FILE PHOTO: The logo of Russian petrochemical company Sibur is seen on a board at the SPIEF 2017 in St. Petersburg ...