I have heard three or four variants of the 5km rule, all unofficial, I took it more seriously and drew those lines on the map before I saw the local mayor getting excited in public news articles about a new gold discovery.
In partnerships with government sometimes the "share everything" approach works well, and sometimes it has the opposite effect.
Not making direct comparisons between Bosnia and the DRC but Ivanhoe in the DRC is not being allowed to extend their license holding onto areas that are 90% likely to have extensions to Kakula SW (sedimentary copper, highest grade and largest copper discovery in a long time), the government is instead going to auction off the areas.
A nice long tender process can be far more lucrative for local officials than a sponsored soccer jersey.
So yes, who knows.
