W Resources awards €4.98m mill construction contract to German engineer

W Resources has awarded a €4.98m design and construction contract for its Spanish mine to Allmineral Aufbereitungstechnik GmbH & Co, a German plant engineer.

Allmineral will design and build a jig and mill at the company’s La Parilla tungsten and tin mine in Spain and will also provide finance for just under 50% of the €4.98m contract price.

The AIM-listed company said that the jig and mill is a core component of the La Parrilla plant infrastructure which upgrades the crushed ore by a factor of 1.5 to achieve an expected 91% metal recovery prior to concentration by rejecting 55% of run of mine (ROM) feed at coarse sizes.

It is designed to accept feed at a rate of 350 tonnes per hour and has been designed to allow rapid expansion of La Parrilla from 1.95m tonnes per annum to 3.5m tonnes per annum ROM.

The twin jig and twin mill circuit provides flexibility for operations and the design ensures metallurgical efficiency to scalp out barren ore from the feed before jigging and also provides finer liberation sizes before final gravity concentration.

All of the fines are collected in the jig circuit and pumped to the gravity circuit for recovery and not discarded to tailings.

W Resources chairman Michael Masterman said: "The award of the jig and mill contract is a critical component of the development of the large scale La Parrilla tungsten and tin mine.

“We are very pleased to award this contract to allmineral under attractive finance terms. We have built a cooperative relationship to agree both the technical and commercial terms and we look forward to completing construction."

Shares in W Resources were down 2.65% to 0.331p at 1145 BST.