getting pobrdje could the hold up be over some claim to Piskanja by the government/union? At one time EV was in partnership with the Serbs with Piskanja.
This agreement is subject to the Serbian Mining Ministry granting an exclusive exploration license for the Piskanja deposit to Erin. This agreement has been officially endorsed by JP PEU, Ibarski Mines (a wholly owned subsidiary of JP PEU, which currently holds the rights to the Piskanja boron deposit), and the National Serbian Miners Union. It is estimated that the percentage ownership in the joint venture will be approximately 90% Erin; 10% JP PEU, based upon the relative values of the contributions made by the parties.
https://www.erinventures.com/media/nws_d.php?id=2
later Erin ended up with 100%
Nov.18th,2015- Erin Ventures Piskanja Balkan Gold breaching property rights license claim from JV partner company union association
https://serbia-energy.eu/serbia-mining-erin-ventures-piskanja-balkan-gold-breaching-property-rights-license-claim-from-jv-partner-company-union-association/
maybe the Serbs want to regain some ownership in Piskanja, before doing a partnership with Pobrdje?
Erin Ventures Piskanja Balkan Gold breaching property rights license claim from JV partner company union association