Ann: Interim Working Capital Funding Completed, page-157

It's for a whole array of battery manufacturing materials, Cobalt, Lithium, Graphite, copper, Nickel, etc etc, one of the greater proportional % that is normally used in L/I batteries is Graphite.

http://www.valuewalk.com/2017/07/lithium-ion-batteries-2/
A Looming Supply Crunch

But there could be extenuating factors that shove the lithium bull market into overdrive. Canaccord Genuity recently set projections at 687,000 tons by 2025, while UBS is expecting demand to hit 873,000 tons in the same year.
While this might seem like nirvana for lithium suppliers, Tianqi Lithium Australia’s general manager, Phil Thick, recently said: “That’s three or four times the current demand within the next eight years, and the supply chain is simply not there to support that.”
Tianqi Lithium is one of China’s largest producers of battery-grade lithium carbonate and derived lithium product. The company is already spending about $400 million to build a new lithium plant in Kwinana, Australia, but Thick notes that it would require about “20 or 30 plants of the size we are building in Kwinana, and the mine resources behind that to back it up…” in order to meet projected demand.
Read more...... Click on the link above.