Ian, there were a few articles from April 26 albiet before "the" pr, but still very improtant to Sanz's thinking at the time. It shows that Mibam is very much in favor of "rational mining" in the area which brings me to believe the latest developements may be a fight/war between Mibam and Minamb. These are his comments taken from two articles:

On the other hand will encourage the rational exploitation of mining sites identified by the Mibam, which will be revealed in due course by the minister.

This relaxation should be to finish it, yes I am going to present a proposal to the exploitation of gold in an area that I control,

Sanz The minister anticipated that in addition to the payment of "the commitments will be honored with the miners Bolivar" the State is working on a proposal for development of the sector in the coming days will be put to the estimated 35 thousand miners who concentrates on bolivarense entity.

The proposal by the National Executive condense, among other ideas, defining an area for the implementation of mining so permits, the total eviction of the basins of Bolivar state and terminate some concessions were granted in that entity.