Gold Resource Corp (GORO)

[LGL8054]

Apple is thinking about using silver-zink battery

http://newatlas.com/go/6261/

http://www.forbes.com/sites/michaelkanellos/2015/05/19/is-zinc-ready-to-take-on-lithium-in-energy-storage/#46ac9b6a4c41

Zinc sells for around $2,250 per metric ton versus $5,000 or more for lithium carbonate (a precursor that requires further costly refinement), reserves are massive with an estimated 224 trillion tons in the first mile of the earth’s crust and you can find it almost anywhere.

Note: Lithium is now as high as $20,000 per ton