Ann: Galaxy Secures Spodumene Supply Agreement , page-7

re: Ann: Galaxy Secures Spodumene Supply Agre... "Galaxy will purchase the Talison feedstock in US dollars, which will represent additional cost benefits to Galaxy. Mt Cattlin was developed as an integrated feedstock provider for Jiangsu. Since then, exchange rate deterioration of over 40% over a sustained term has pressured the cost of local production."

The exchange rate between USD vs AUD

By buying from Talison, in the USD currency, Galaxy will be profiting on a stronger more consistent dollar. (Currently 4% stronger)

My question is... which exchange rate(Between what two currencies) has deteriorated by over 40%, to result in Mt. Cattlin not being economical?