Further to DEA 16 Feb â18, Saltaâs planned offer of 15 blocks totalling some 54,000 sq km will be held in 2 tranches. A majority of blocks will be released on 15 May 2018, the remainder to follow tentatively in July. Selected blocks are:    Â 
Saltaâs planned offer of 15 blocks totalling some 54,000 sq km will be held in 2 tranches. A majority of blocks will be released on 15 May 2018, the remainder to follow tentatively in July. 