Borax will be shutdown, page-3

Not necessarily.

With the rationalisation of the business that has taken place over the last 2 or 3 years, and in particular with the drop in the value of the peso, production might actually be profitable (if not much) for export sales denominated in $US. The peso has dropped in value by around 30% against the $US in the last 3 months, way more than the 8% tax. In particular, with the write-down to $0, any profit will make the ROI look good!