Vale buying opportunity

This is a long term opportunity here.. Vale has lost 50% in the last 4months.
Strong support at 11.12.

Monthly fibonacci level + Monthly 100sma are sitting at the same area which makes it a great risk reward here.
If it falls beneath 11$ there's a trendline(Whiteline) support around 9.80 Where I'll Add more if need be

Severely oversold here on the weekly and daily oscillators.