An interesting article on platinum by someone who apparently focuses on this area of the market:
She promises at the end of the article: "In Part Two, I'll answer the question you've been dying to ask: How do I invest in platinum?", that I am looking forward to reading.
I noted the article above in a comment by the author in response to an article by Frank Holmes, which was also very interesting:
A decent read for:
A case for the 'white precious metals'
or if you prefer the very long term perspective:
Platinum group metals: a story of scarcity and industrial needs
Can you PM me your email? There is something in your article I'd like to discuss.
I still find a chat option on the site at your profile, but PM seems to be discontinued.
I may add you on LinkedIn though: here's my public profile: https://www.linkedin.com/in/guyvekeman