Investment gold: zero-rated
The Ministry of Finance lists certain investment-grade precious metals, such as gold and silver of 99% purity, among zero-rated supplies. A bar or coin meeting the conditions for investment precious metals is sold at 0%, and the seller keeps the right to recover input tax.
The conditions matter. Purity alone is not the whole test; the metal must be in a form traded in global bullion markets. A 24-carat pendant is still jewellery, not an investment bar, whatever its purity.