Gaven voluntarily promised that if the Dream Railcar were to undergo actual research and manufacturing, he would provide the necessary steel materials to the Laiserman Kingdom at factory cost, thus offering material support for this endeavor.
The Haslan Witches naturally wouldn't refuse, as the Laiserman Kingdom doesn't have its own iron mines and primarily relies on imports.
The imports aren't only from other territories on the Material Plane but also from the Inner Plane, specifically the Earth Elemental Plane, a world entirely composed of earth elements, which not only possesses endless soil and rocks but also limitless mineral veins.
The metals and gemstones available on the Material Plane are present here.
Metals and gemstones not found on the Material Plane are also here.
As long as one can find the caves of the natives of the Earth Elemental Plane, one can harvest a vast amount of ore.
