Both groups in Nepal are not respecting human rights.
FN Herstal is partly owned by the state governement of Wallonië (Wallonië is a state of federal Belgium), they want to sell the factory to a private partner, and this big weapon delivery helps to convince the new partner. The federal governement however refers to a law from 1991 indicating that no weapons should be sold to countries at war. If FN (Belgium) does not deliver those weapons many people loose their work... if FN does deliver those weapons many people will be killed... if you put it that way it's easy to choose. But like said above, if FN does not deliver those weapons perhaps another country or factory will.