tala hamza

From the Quarterly:

"Realising value from the Tala Hamza project remains the highest individual priority for the Company. Following discussions held during my visit to Algeria, which ended in early February, a modified approach to mining the Tala Hamza deposit was proposed to our Joint Venture (JV) partners in late February. A meeting was held with our Algerian partners in late April to continue discussions on that proposed revised mining method. These discussions have not lead to satisfactory outcomes thus far. The Company expects to make a decision shortly as to the way forward with the project."

Does anyone know what the big stumbling block is here?