What kind of tax liabilities do you have as a UK company?

Do any of you guys have a UK company? What kind of tax liabilities do you have? Keep reading different stories and having a hard time figuring out what the real deal is.

Currently using a HK company with full tax exemption but would like to diversify a bit - the situation continues looking less amazing over there. On the other hand, going from zero tax to 20% in various EU countries, not so tempting either.