Russia's Sibur calls UK sanctions illegitimate, reserves right to challenge them

MOSCOW, Nov 13 (Reuters) - Russia's largest petrochemical company Sibur said on Friday that Britain's sanctions against it were "neither legitimate nor justified", and that it reserves the right to challenge them.

Britain on Thursday imposed sanctions on a range of Russian energy-related entities and vessels, including Sibur. 

However, Sibur said its main business is developing and producing synthetic materials.

"Sibur does not work in the energy sector, does not own subsoil and does not extract minerals," the company said in a statement. "The company's lawyers will carefully examine the UK's arguments, and we reserve the right to challenge the restrictions being imposed," it added. 

Sibur said that it does not expect an impact on the company's stability from the sanctions.

Among those subject to the new round of sanctions was Russian oil producer Slavneft, with Britain saying it had become the first country to target all of Russia's 10 largest oil producers.

(Reporting by Oksana Kobzeva, writing by Ksenia Orlova; Editing by Kirsten Donovan)