ASX Today, page-311

Net Tangible Assets per share (NTA/share) (Description)
NTA (net tangible assets) is described as the total assets of a company, excluding intangible assets (such as goodwill, trademarks and patents) minus total liabilities. The NTA/share value is used to determine, in theory, the money that each shareholder would receive if the company was forced into liquidation and all of the assets were sold at that point in time.

MXC NET TANGIBLE ASSETS PER ORDINARY SHARE (cents) 0.32, from announcement 31st December 2016. APPENDIX 4D

I will go with around the 30¢ minimum.