Guessing the 2017 guidance, page-30

The market is showing the value of tgs not me and the market is real. And your current value dream is nonsense for our "current" situation!

Your mentioned "best mining companies" have larger and long lifetime mines (+50yrs), have alternative products (+gold, cobalt, etc.), are diversified and if they need, they are easily in a position to sell big stakes of some of their mines to reduce their massive debtloads to a minimum (e.g. glencore).

Tgs have just:
1 product
1 operating mine
0 altern. product
0 other oper. mines
But heavy debts on all that!!!

... and just a lifetime of 10-20 years! And in this time they need to make much much (!!) net cash to invest in new opportunities (new mines, etc.!) and should have been reducing their heavy debts to get further loans for those new projects or tgs is history and wouldn't be anymore a listed company...

So your "short view" shows me that you are not able to look over the horizon and what should be considered in case of an investment especially on this one!!