About this site
Contact
One mailbox for corrections, questions about a figure, and embed or partnership enquiries.
Last reviewed 28 October 2026
What to include
- Correction: the page address, the line, and a source.
- Data question: the metal, the figure and the date you are asking about.
- Embed or partnership: where you will publish and the metals you want.
What we cannot do
We do not give individual investment advice, quote dealer prices or arrange purchases of metal.