Sales of shares of listed company incorporated in UK but listed on overseas Stock Exchange

Hi I have a querry about the capital gain in listed shares. The company is listed on both London and Hong Kong Stock Exchange. The Company is incorporated in the UK. The shares are brought and sold via a Hong Kong broker. Question: When such shares are disposed with a gain, is it a UK capital gain or foreign capital gain?

Hi ,
 

This would be a foreign gain  . Thank you .