The Royal Mint of the United Kingdom, which makes the country's circulating coinage, is also very active in the bullion coinage space and issues many bullion coins which are legal tender.
Additionally, it also makes bullion which is not legal tender and is targeted at investors and not at coin collectors. The format of four hundred ounces of gold, due to its price, is targeted at institutional investors.
These products are rectangular in shape and are known as "gold bars"; they are cast, as their size is not suitable for regular minting techniques.
The Royal Mint says about this product:
"The 400 Ounce Gold bar from The Royal Mint Refinery contains 400 troy ounces of 999.9 gold and is the largest gold bar available in the RMR range. All RMR gold bars are VAT-free for non VAT registered private individuals. Each bar is imprinted with a unique serial number and the RMR logo. It is available for delivery or secure storage in The Vault™, The Royal Mint’s purpose-built precious metal storage facility." | 
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