Putting environmental and social costs aside for the time being, there is a significant cost to deliberately choosing to extract the poorest and most labor and regulatory intensive lithium ore available in order to distort the market. Lepidolite grades are typically <1% lithium oxide, but the typical commercial spodumene mine is >1% lithium oxide. As a result, extraction and processing of low-grade lepidolite has created significant financial burdens for local authorities and producers because they have to manage the financial shortfall and higher interest rates.As long as they have a monopoly (or most of the purchasing power) on the chemical production/conversion, of course they can. Thats why non-china supply chains are so important. Think about how Woolies and Coles treat farmers, its a similar power dynamic.
They can stock up supply at "real market rates", then not buy and push the market into a supply glut and buy at the low prices... problem is thats not sustainable which is why we see such extreme commodity cycles or as Mr Lithium Lowry says "high prices fix high prices, low prices fix low prices". Without new entrants and exploration the market will quickly get constrained again, especially as demand increases.
Increased costs, including regulatory burdens and sustainability issues, distort the market and contribute to unsustainable indebtedness. Of course the central planners deny that this burden is unsustainable.
Nonetheless, you are right in saying that in contestable markets, high prices eventually fix high prices, and low prices eventually fix low prices. Nothing stays distorted forever.
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