Employee
On the condition that restricted stock and RSUs qualify as shares (securities) or "termed finance instruments" (as defined under the Russian law), they are taxed upon vesting.
Tax is imposed from the sale of shares.
Employer
Withholding & reporting
Employers generally must comply with reporting and withholding requirements on any income paid to Russian taxpayers.
Deduction
Generally, the subsidiary will not be able to deduct the cost of the benefits from its taxable income.