The best interest of shareholders is adequate distribution of information to shareholders and good corporate governance. Convoluted crossshareholdings among the various related MXBIF entities is already a concern. Reducing reporting to shareholders can not help.
Either this spinoff should be a public company with full reporting or should be sold off to a private entity. The MYMX spinoff is a prime example if what can happen. Every shareholder wants at least some minimal level of liquidity and the ability to dump holdings when either they need the cash or something better comes along. Holding Ugandan mining operations is not a major part of my, or many other shareholders, long run goals.
Regarding listing in long run, I don't see why this should happen. Companies list either to raise additional capital, due to contractual commitments with major investors, or due to a major investor wanting to cash out putting sufficient pressure on company thru threat of takeover/change of control when they sell. I don't see any of that here. I see more of the situation of Canadian mining stocks(Vancouver exchange) as examples. Another precedent is the various related companies doing business with MXBIF over the past 10 years. While they were already pretty weak when MXBIF got involved, none have really grown enough to be liquid publically traded companies.