“…Hence, copper exploration brought considerable business to copper-producing countries such as Chile, Peru, China, the United States, Australia, Mexico, Russia, Canada, Poland, Germany, Spain, Indonesia, Brazil, and Iran. However, with the exhaustion of high-grade copper mines and already explored areas, the copper price increased (Alameer et al, 2019;Ni et al, 2020;Zheng et al, 2022; Figure 1. c).…”