Tax implication for overseas business owner

Hi, If I work in the UK as a resident and tax payer, and my partner is Irish - currently non resident but visiting regularly, owning an overseas company ( not in EU / UK) what are the tax implications for the a) funds moved to the UK from the company b) tax implication for the company if any, as he would like to reside for a longer duration in the UK and ensure all tax is paid accordingly.

Hi,
Please find guidance here:
Tax on foreign income 
Thank you.