Coal

Bauxite is processed through multi-stage aluminum production that also depends on water and silica inputs.

Caterium allows high-speed electronics materials such as quickwire after research.

Smelting copper supplies wire, cable and copper sheets used in electronics, pipelines and electrical equipment.

Oil extractors supply crude oil to refineries that make plastic, rubber and fuel with fluid byproducts.

Mined from iron nodes and smelted into ingots; it supports plates, rods and many early and late manufacturing chains.

Miners provide limestone for concrete, which is used extensively in foundations and construction.