President Vladimir Putin's administration has been making it harder to exit the Russian market.GAVRIIL GRIGOROV/SPUTNIK/AFP via Getty Images The Kremlin could pass a new rule allowing it priority rights to acquire shares from exiting foreign firms. This would make it harder for foreign companies to leave the Russian market. Moscow has been imposing an increasing number of restrictions on firms that want to exit the country. Foreign businesses wanting to leave the Russian market already face a tough time trying to get out — but a new law could make the breakup even harder.Russia is in the process of approving a new rule that allows the Kremlin to be the first in line to acquire the shares of strategic companies whose foreign shareholders are leaving the country, Interfax news agency reported on Monday.