WHAT WE OFFER

Your journey with Capstone Copper starts here. At Capstone, our people are the heart of our organization. We are focused on growth and are committed to unlocking the full potential of ourselves, our teams and our resources. We invest in our people to develop a skilled and engaged workforce, not only for today, but for the future. If you are looking for a purposeful, performance-driven and dynamic work environment, join us! Pinto Valley is an open-pit copper mine located at the west end of the historic Globe-Miami mining district of central Arizona, approximately 80 miles east of Phoenix. Pinto Valley has been in operation since 1972 and has produced more than four billion pounds of copper. Acquired by Capstone from BHP in 2013, the mine is fully permitted through 2039 and a study is underway to potentially extend the mine life through 2050. Our proximity to the Greater Phoenix metro area provides prospective employees with the option to live in communities such as Mesa, Apache Junction, Gilbert, Chandler, San Tan Valley, or Florence. Our location offers a unique work-life balance, blending the rewarding opportunities of the mining industry with easy access to the vibrant energy of Downtown Phoenix, making it an ideal choice for both individuals and their families. Capstone employees are eligible for an extensive total rewards package, designed to support your physical, mental, financial, and emotional well-being. This package includes, but is not limited to: 401(k) Savings Plan

• Eligible from day one, contribute up to 90% of your salary with a dollar-for-dollar company match up to 6%, fully vested immediately. Retirement Boost
• The company contributes 8.5% of your salary, with 100% immediate vesting. Employee Share Purchase Plan
• After three months, contribute 2% to 7% of your salary (max $5,000/year) to buy company shares, with a 50% company match, fully vested upon grant. Annual Short Term Incentive Bonus
• Up to 20% 4-day, 10-hour work schedule Affordable Medical, Dental, and Vision benefits (effective on start date), including Telehealth options and additional supplemental insurances Disability and Life Insurance (effective on start date) Paid time-off, including vacation, holidays, sick leave, and parental leave Employee Assistance Program Internal progression opportunities Tuition reimbursement Discounted insurance plans for pets, automobiles, and homes Additional Potential Benefits

POSITION RESPONSIBILITIES

As a Senior Project Manager, you will be responsible for managing and executing medium to large CapEx and OpEx projects by developing key project documents, monitoring budgets and safety, coordinating with stakeholders, reviewing technical and construction drawings, using SAP, facilitating bids and meetings, and ensuring project goals and KPIs across HSEC, Production, Maintenance, Quality, and Cost are met, all under direct supervision. Demonstrate commitment to safety and Capstone's Values in Action.

Project Planning & Engineering :

Develop project proposals and cost estimates and collaborate with third parties to deliver engineering solutions from concept to detailed design; support drawing updates and standardization using CAD and PDF tools.

Project Execution & Management :

Manage capital projects by overseeing contractors, evaluating bids, and ensuring adherence to safety, scope, schedule, and quality; track progress and provide regular updates to stakeholders.

Contract & Cost Administration :

Support budgeting and manage contracts, purchase orders, and cost controls to ensure projects stay on budget and aligned with financial goals.

Document & Data Management :

Maintain organized, accurate project documentation, manage access and version control, and ensure proper archiving of drawings, revisions, and records.

Compliance & Certification :

Ensure workforce certification compliance and uphold all MSHA and Pinto Valley Mine safety policies and procedures. Actively participate in line-out and safety meetings, contributing to safety discussions and operational efficiency. Take on additional tasks and responsibilities as assigned, demonstrating flexibility and initiative.

POSITION REQUIREMENTS

Required Bachelor of Science in Civil or Mechanical Engineering with 10 years

• experience managing large civil mining projects such as complex civil infrastructure systems, including roads, tailings, utilities, water management, and site development Responsible for managing project submittals, RFI's, design changes, and Project Quality documentation.

Manage contract requirements including cost and schedule reporting, scope changes, commissioning turnover and project closeout. Coordinate and collaborate with various departments on projects including but not limited to HSE, Procurement, Mine, Processing, and Tailings. Provide technical leadership on complex civil infrastructure systems, including roads, tailings, utilities, water management, and site development, setting technical standards and engineering governance Oversee contract strategy, commercial governance, procurement frameworks, and financial controls, ensuring disciplined cost management, commercial risk mitigation, and delivery within approved investment thresholds Direct enterprise procurement strategies for materials, services, and equipment, ensuring value optimization, supplier performance management, and supply-chain resilience. Knowledge of construction codes, standards, and ability to interpret/redline technical drawings. Experience managing project schedules and budgets using Microsoft Project, Excel, and Gantt charts. Proficiency in Microsoft Office (Word, Excel, Outlook, Visio, Project) and technical report writing. Strong communication and collaboration skills to lead meetings and work with diverse teams. Fluent in spoken and written English.

Preferred Licenses:

PMP Certification, Engineering in Training Certificate, PE License Relevant Project Management experience in Mining or Heavy Industrial Construction industry. Experience with SAP or ability to quickly learn enterprise project management systems. Familiarity with contract review processes. Ability to build external networks and source technical or project-related information as needed. All candidates will be required to complete a pre-employment medical exam, drug and alcohol test, and background check. All positions require a pre-placement physical examination to ensure candidates are 'fit for duty'. Additional training and/or testing may be required. Capstone maintains a drug and alcohol-free workplace.

CAPSTONE COPPER IS AN EQUAL OPPORTUNITY

EMPLOYER.