EPOS – Empresa Portuguesa de Obras Subterrâneas, S.A. signed a contract with Iberian Resources Portugal, Lda. to excavate and support 3 galleries in a concession in the Armamar area, in the Viseu district, for the experimental production of scheelite, a mineral used to produce the metal tungsten. The deadline for the works is 6 months and the contract value is over 2 million Euros.