Intern Technical Services

Date: Oct 21, 2025

Location: Tucson, AZ, US, 85718

Company: South32 Group Operations Pty. Ltd.

Discover a Brighter Future

At South32, we’re meeting the challenge of enabling a sustainable future through our focus on responsibly producing commodities critical for a low-carbon world.

As a collaborative, caring and inclusive company, there’s no better place to make a genuine difference. Together we’re making a positive, global impact that has the potential to change lives.

Whatever career path you choose, we’ll support you every step of the way to learn, grow and succeed. So join us, step towards a brighter future and leave your legacy.

ABOUT Hermosa

Hermosa, located approximately 75 miles south-east of Tucson, Arizona, is the only advanced mining project in the United States as of 2023 that could produce two federally designated critical minerals—manganese and zinc—as well as silver and lead. The project has the potential to help power the nation’s clean energy future, strengthen the domestic supply chain of critical minerals, grow the local economy, and improve lives in Santa Cruz County and the surrounding community for generations to come.

ABOUT THE ROLE

This role is a (Permanent) Hybrid position from (Hermosa Site near Patagonia, Az)

As the (Intern Technical Services), you will be responsible for supporting the Technical Services team during the 2025 summer season.

Other key responsibilities include, but aren’t limited to:

- Support a variety of engineering tasks with the goal to develop technical, social and ethical skills.

- Learn basic principles of mine development design, stope design, zone design, waste management.

- Provide support for trade off studies, such as conveyor to crusher and fleet.

- Exposure to Logistics simulation, first principal cost build up verification and core rig support.

- Assist with project research, field work and preliminary design calculations and analysis.

- Assist in collecting and maintaining project documentation.

- Complete training on assigned tasks.

- Exercise responsible decision-making regarding conduct and adhere to South32 policies and procedures.

- Perform other duties as assigned.

- Please note, there is no relocation or housing assistance associated with this internship.

About You

You will have experience and demonstrate capability in the following:

- Ability to uphold workplace safety and ability to abide by South32’s policies and procedures.

- Actively enrolled in Undergraduate or Graduate degree program with anticipated graduation date of August 2025 or later.

- Actively enrolled in an accredited Mining Engineering or related Graduate or Undergraduate program.

- Demonstrated interest in Mine Engineering, or related field and have a strong desire to advance skills related to South32 and the Hermosa project.

- Excellent interpersonal and communication skills when interacting with others, expressing ideas professionally.

- Self-motivated and eager learner with aptitude to grow and develop within the field.

- Strong problem solving and analytical skills.

- Ability to take direction from leadership, mentors and managers.

- Basic proficiency with technical writing, Microsoft suite, etc.

- Authorization to work in the United States.

ABOUT Hermosa

Hermosa, located approximately 75 miles south-east of Tucson, Arizona, is the only advanced mining project in the United States as of 2023 that could produce two federally designated critical minerals—manganese and zinc—as well as silver and lead. The project has the potential to help power the nation’s clean energy future, strengthen the domestic supply chain of critical minerals, grow the local economy, and improve lives in Santa Cruz County and the surrounding community for generations to come.

Nearest Major Market: Tucson