Within the period permitted for exploration the mining entrepreneur may return the exploration site, partly or fully. The mining authority may only approve the return of site if mine damages are compensated for the area as well as obligations concerning land remediation, environment, earth and soil protection are complied with. 

As for the returned site, the granted’s right for exploration shall cease or the entitled’s right for exploration shall cease to have effect on the day the resolution becomes final. (paragraph (14) of Section 22 of Bt.)