The UK FTSE 100 Index advanced 1.05%, setting a record high at 8,960.72, which surpassed the record set in March.US President Donald Trump announced a 50% tariff on imported copper, leading to a spike in copper prices. Correspondingly, mining stocks with substantial copper operations led the gains, with Anglo American leaping by 5%, and Rio Tinto and Glencore soaring by over 4%.