They have plenty of mines for iron amd otber metals in western countries as well. Check out https://en.wikipedia.org/wiki/Butte,_Montana
Also the reason for the existence of the Norwegian port town of Narvik, connected to Kiruna by the world’s most northerly train line.
The term is often used to avoid (or sometimes conflate) what have become problematic and/or obsolte terms, including colonial empires, advanced vs. undeveloped countries, NATO vs. Soviet Bloc states, or the similarly cardinal-directed "Global North" vs. "Global South".
Pedantry on the point (my own included) isn't particularly illuminating or interesting.
Wikipedia's disambiguation page suggests the vagueness of the term: <https://en.wikipedia.org/wiki/West_(disambiguation)>.
Edit: /Brazil has claims/s/has/& additional/
"G-n", where n is typically in the range of 6--20, and most canonically refers to the G7 nations of Canada, France, Germany, Italy, Japan, the United Kingdom and the United States, is another formulation, though that omits Australia (reasonably significant) and NZ (a small country, though quite "western" in a cultural sense). Other significant exclusions are of course China, as well as South Korea, any South American states (Mexico and Brazil would be the most likely candidates), as well as numerous European states which aren't as dominant but are still internationally significant commercially and politically, though those last can claim some inclusion under the EU, the "non-enumerated member".