The Royal Mint recently requested a change to UK Legislation – specifically an amendment to the 40-year-old 1971 Coinage Act, a clause which limited the weight to which UK coins could be made. This was in order to mint UK kilo coins, the first kilo coins of the realm. The Gold and Silver kilo coins have face values of £1000 and £500 respectively, but you’re unlikely to ever see them in circulation!
Source: [Royal Mint]
