Under the deal, Amtel-Vredestein will buy "all the issued and outstanding shares of Sibur-Russian Tyres from SIBUR Holding," the Dutch company said on its website.
The shareholder meeting also backed placing an additional issue worth $150 million.
Amtel said earlier that Sibur-Russian Tyres should issue $40 million in two tranches of a bridge loan to enable the Dutch company to refund its floating capital to complete the deal later this year.
Sibur Holding, Russia's largest petrochemicals company, integrates 34 plants and subsidiaries producing over 100 petrochemical products and is controlled by Russian energy giant Gazprom.
Amtel-Vredestein N.V. is one of the leading European tire producers and Russia's largest car tire manufacturer.
