SLCA has been on the upward trend and has broken above its 200day MA on the weekly chart.
They have also been reported to ramp up production in 2018.
Play this from the long side with a projection to the 47 area.
of course another week of strong performance would validate trend. I could see a pull back to the 200 day MA happening. if that does happen, wait for bounce to establish long.
a break below will void idea.