Gas

Selling price:$70

In-game description: Safely contained gas.Valuable for uncountable applications in space, and barbecues.

The term gas refers to all aereiform substances,although the description hints it's a combustible gas,most likely metane or propane.

Can be harvested on Ulu,it appears on the overworld as bubbles.

Can be bought for $95 at the Ongmon space trade facility-Kursha empire

It's highly requested at the Yunqi U.H.C. military starport-United Human Colonies($+95 due to demand,total $165 per unit)