This mod is in open beta, at the moment, and brevven doesn't add it to verybz before it is out of that state.
This mod adds a new ore, salt. In order to get a proper distribution of this ore on the map, a new game would be necessary.
One thing you could test is to add it, load your game, enter editor and search for it outside your currently discovered area. If you find it, you're good to go. If it is far off, you could add a patch.
Not sure if the patch of salt is the only source, also.