RE:Zinc spot TC in China was $75-80/t in Feb= Trevali 0.77 AISCRefining and treatment costs are netted against revenues coming back from the smelter. I don't believe they affect C1 or AISC. Regardless of that, it's a huge windfall for TV. Every $100/t decrease in TC's amounts to over $30M in extra cash - according to their corporate presentation. They're currently at $300 so to go below $100/t will be tremendous.