As a long term buy and hold, platinum looks like a winner.
Platinum is one of the world’s rarest metals. All the platinum mined to date could fit into an average size living room. The biggest producer of platinum is South Africa, accounting for nearly 80% of the supply. The largest consumer of platinum is the jewelry industry (51%) followed by auto catalysts (21%). Since most of the supply is coming from South Africa going long platinum is like going short the South African government. Each day that passes South Africa is looking like a future Zimbabwe.
Anglo American Platinum is one of the largest producers of platinum. Their web site is information overload. I had to dig through to find out that the AISC hidden in the foot notes.