From article from canada titled: New Brunswick companies...

From article from canada titled: New Brunswick companies scrambling to cash in on zinc rush

"Used in everything from nails to metal door frames, batteries to sunblock, zinc can rust-proof steel, making it the perfect tool for construction.

Rapid development in China has sparked a huge demand for the metal, and the known supply of zinc is falling behind the projected worldwide demand by more than 300,000 tonnes"

So deutscmann said theres a current 200,000 tonne defecit and is projected to expand to 400,000tonne defecit!

this is projecting 300,000 defecit