Tungsten Mining NL (ASX:TGN) shares nudged $0.21 during September, more than double their price at the beginning of the period.
The company closed at $0.17 yesterday.
Before the open of trade this morning, Tungsten Mining has called for a trading halt, pending details of a capital raising.
The halt will remain in place until the opening of trade on Tuesday 3rd October 2017, or earlier if an announcement is made to the market.