So, Crushing industry has an option where you can disable crushed coal (which i enabled since i see it as an unnecessary item that only adds bloat)
Found this while trying to download the mod, since its now in a very good state of compats with many other great mods, i thought i'd add it to the modpack.
Failed to load mods: Error in assignID: item with name 'crushed-coal' does not exist.
Source: molten-plastic (recipe).
Hope it can be resolved easily, Great mod, keep it up : D