W Resources PLC (AIM:WRES) said it has restarted operations at its La Parrilla tungsten mine in Spain after a maintenance shutdown.
There was no production in February other than small quantities of work in progress that were reprocessed early in the month, it added.
The initial maintenance shutdown was scheduled for two weeks and in that period further improvements were identified, delaying the restart. said the statement.
W Resources added it is also assessing energy options following the 425% rise in LNG prices announced last month.
Part of the additional funding agreed with BlackRock this month has been used to secure LNG supplies for the plant, said the miner.
Plans are also being accelerated to connect a second power line and to find alternative power sources such as solar.
Michael Masterman, chairman, said: "W realises the importance of recommencing production at the La Parrilla mine and looks forward to resuming shipments of tungsten concentrate, an event welcomed by our customers, staff and stakeholders alike.
"The war in Ukraine is creating unprecedented pressure on energy prices, which the company has to navigate and is evaluating all alternative options available.
“Notwithstanding this challenge, demand for our tungsten and tin concentrate remains very strong and prices remain robust."