Bolivian protestors have ended a strike that paralysed a mining town for 19 days and disrupted operations at two of the world’s top silver mines, after reaching a deal with the government.

The protest over infrastructure and development affected the mineral-rich Potosi region.

Protestors have been asked to re-open mines and lift road blockades.

Sumitomo, which earlier stopped processing ore after demonstrators threatened to cut energy supplies, said its silver-zinc-lead San Cristobal mine has resumed operations.

Coeur D’Alene had shut its San Bartolome mine, the world’s largest pure silver mine, after workers joined the protests, reports Reuters.

The total output of the two mines accounts for 83% of the nearly 1.1 million kilograms of fine silver produced last year in Bolivia, which is a global producer of zinc, silver, tin and lead.

It is still unclear how much the strike has affected the Potosi-region, which exported $880m of minerals in the first half of 2010.