CGT on Shares held in Deed of Trust

I have shares in a company held by a Third Party through a Deed of Trust. We were advised when we set up the deed that the holder of the shares (the third party) would pay any CGT or other taxes when the shares are sold and would then be able to transfer the nett profits back to me without any liability . Does this rationale still stand if the third party now lives abroad and doesn’t pay tax in the UK?

Hi,
Please refer to Trusts and taxes
Thank you.