Indonesia's military said on Friday it was prepared to take tough measures against rebels who have threatened to "destroy" mining operations of Freeport-McMoRan Inc in the eastern province of Papua in their struggle for independence.
The planned strike in the coal sector could affect power supply in Africa's most industrialized economy, as about 85 percent of electricity is generated from the fossil fuel.
Armed separatists have occupied five villages in Indonesia’s Papua province, threatening to disrupt Freeport-McMoRan Inc’s giant Grasberg copper mine, which has already been hit this year by labor unrest and a dispute over operating rights.
Aggregate market cap of the top 100 junior mining companies was up 7% to $12.2 billion, a level not seen since 2010, but the group significantly underperformed the Venture Exchange as a whole.