Yes! You can pay into your pension through business contributions through your limited company. This means that these business/ employer contributions will be offset as a business expense, and will not be charged corporation tax, which means that less tax will be deducted from your total company's earnings (dividends).
If you pay into your pension through your limited company like so, your contributions will not receive the government's 25% tax top up contribution, because you have not paid tax on these contributions.
Read our How much can a company contribute to a director's pension? guide for more information! 😀