Unfortunately, the search shows the item location, and not the seller's country of registration, and many Chinese sellers will have a forwarding company here in the UK to facilitate a faster dispatch, hence their item location shows as UK, as that's where it's coming from.
Usually price will indicate if it's a Chinese seller , and the number of negatives in feedback. Click on the feedback on any seller's items, that brings up the Feedback Profile showing the seller's country of registration.
A bit long winded I know, but at least you'll know who and where the seller is located.
@kksiala