
The Region of the so-called Old Belt despite limited production becomes one of the regions where considerable part of the mining staff gain experience and take part in construction of Polska Miedź. Here also, fully successful, reactivation of mines created favourable conditions to undertake geological search of copper ore deposits, on the full scale in the region of Lubin and Głogów, which was at those times a blank spot on geological maps. Apart from mining works, exploratory drillings were conducted around Złotoryja. The results of this research allowed expansion of such mine as 'Lena' and construction of the new 'Nowy Kościół' in the town of the same name. Mining was performed first in April 1955, and extracted ore was processed in the Enrichment Plant of Konrad mining site in Iwiny.