zinc supply crunch, now !!!, page-8

If possible can some one post answers to the following questions:

* What is the average global all in cost of production?

* Who are the biggest producers and what are their cost of production?

*What countries/industries are the biggest drivers of demand?

*How many potential mines are currently out there and what are their cost and potential production profiles?

If someone can answer me these questions with provided links to supporting evidence I would really appreciate it. But quickly looking at the current data on zinc I think this company is well placed for the next resource cycle which unfortunately is a while from now.