South32 Hermosa Critical Minerals Project
PERMITTING DASHBOARD PROJECT POSTING DATE: MAY 05, 2023PROJECT WEBSITE: https://south32hermosa.com/en_US/
All dates below are specific to the schedule of the Environmental Review and Permitting processes for this project.
ENVIRONMENTAL REVIEW AND PERMITTING STATUS
IN PROGRESS
ESTIMATED COMPLETION DATE OF ENVIRONMENTAL REVIEW AND PERMITTING
09/07/2026
ENVIRONMENTAL REVIEW AND PERMITTING PROCESSES
COMPLETED
SECTOR
Mining
CATEGORY
Project Category
FAST-41 Covered Projects
LEAD AGENCY
Department of Agriculture, US Forest Service
View FAST-41 Postings by Agencies
Other Agencies with Actions or Authorizations:
Department of the Interior, Fish and Wildlife Service
Description:
The South32 Hermosa Critical Minerals Project (Hermosa Project) is a proposed zinc and manganese mining and processing operation in a historic mining district in Santa Cruz County, Arizona near the US-Mexico border. The Hermosa project sponsor proposes to construct a small-footprint, underground mining operation applying low-carbon design and best-in-class engineering principles. Part of the Hermosa Project area will involve subsurface and surface disturbance of lands within the Coronado National Forest.
Zinc and manganese are both designated critical minerals by the U.S. Geological Survey. The Hermosa Project contains one of the world’s largest undeveloped zinc resources. Manganese has been identified as a strategic and critical mineral, the production of which has been authorized under the Defense Production Act to increase domestic mining and processing necessary for the large-capacity battery supply chain. Executive Orders 14154 ‘Unleashing American Energy’ and 14156 ‘Declaring a National Energy Emergency’ both cite the development of critical minerals as essential for national security, defense, and the economy.
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Permitting Timetable
The permitting timetable below displays data as reported by agencies. Dates for Environmental Review and Permitting processes (Actions) that are in 'Paused' or 'Planned' status are subject to change and are not indicative of a project's final schedule.
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Action Information
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