Six thousand workers have gone on strike at a plant of the Evraz steel and mining company, partly owned by Roman Abramovich.
Staff at the ore mining and processing plant in the Sverdlovsk region town of Kachkanar are protesting a new bonus system, the RBC news outlet reported Thursday.
Strike leaders claim the changes reduce their wages by 7,000 to 15,000 rubles ($100 to $220) a month. The average salary at the plant is 47,000 rubles ($700) a month.
Workers are holding a work-to-rule strike, where those taking part are encouraged to strictly follow all industry rules and guidelines to the point where it hampers production.
Trade union leader Anatoly Pyankov said that production could be reduced by 50 percent as a result of the action, RBC reported.