Even better is that production capacity will double to 30T per...

Even better is that production capacity will double to 30T per week by end of FY19. So that "in excess of $1m" becomes in excess of 2m, is there is sufficient demand (at this point, I imagine there is)

Granted some of that would be Alusion, but the cast majority is clearly ZnO. Based off that, there's $12m per annum that can be sold, without doing anything else. Factor in tax, that's about $8m, give or take. (without valuing tax assets at all)

That's less than 15 times for a company with net cash, some very valuable IP and multiple opportunities for growth.