potash prices moving up

Potash prices may touch $600 per tonne on domestic demand
1. “Global demand for potash is expected to grow at 3-3.5% annually”
2. “According to global standards, every 2 million tonnes of greenfield capacity addition (excluding infrastructure expenses) costs $2.5 billion”.
In comparison, the expected Capex for STB’s Colluli deposit is only $500 - $700M.
http://economictimes.indiatimes.com/news/news-by-industry/indl-goods-/-svs/chem-/-fertilisers/potash-prices-may-touch-600-per-tonne-on-domestic-demand/articleshow/10251496