"Lithium a silver-white metal. In normal conditions it's the lightest metal, however it's highly reactive and flammable. It's used in ceramics, heat-resistant glass and lithium batteries. This ETF tracks the performance of the lithium industry. The biggest lithium producers are: Australia, Chile, Argentina, China and Zimbabwe. This page includes a chart with historical data for Lithium. Lithium - actual data, historical chart and calendar of releases - was last updated on June of 2019."
Nothing to do with pricing. Majority of product is bound by rolling contract that are negotiated annual.
Yes there is a down trend, because China has its grubby fingers on the manipulate button with the aid of some corrupt banking institutions.