網頁6 天前 · Mining. Mining of sulfur from a deposit at the edge of Ijen 's crater lake, Indonesia. Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory.
網頁2024年5月16日 · Headquartered in Washington, D.C., the NMA has a membership of more than 250 companies and organizations involved in every aspect of mining, from producers and equipment makers to service providers. The NMA’s Commitment to Diversity, Equity and Inclusion. The NMA is committed to furthering our engagement with, support for and …