Rio Tinto Borates — a global leader in industrial mineral supply and one of the world’s largest mining companies — is hiring a Supply Specialist at their open-pit Borax mine in Boron, California. You will contribute to the safe and efficient operation of the Supply Warehouse — receiving, inventorying, and distributing materials and supplies essential to running the Borax plant. This is a permanent full-time position offering $29.73 per hour, an exceptional benefits package, 401(k) matching, Rio Tinto share program, medical coverage, and genuine career growth within a world-class global mining operation.
About Rio Tinto Borates — World’s Largest Borates Producer
Company: Rio Tinto — one of the world’s leading global mining and materials companies, operating in 35 countries
Facility: Open-pit Boron mine — the world’s largest borax mine, supplying ~25% of global refined borate demand
Brand Heritage: 20 Mule Team Borax — America’s most iconic mining brand, tracing roots to Death Valley in 1872
Role Scope: Supply Warehouse operations — receiving, inventorying, and distributing materials for the Borax plant
Reporting: Reports to Supervisor of Maintenance and Services in a safety-first operational environment
Why This Supply Specialist Role at Rio Tinto Boron Stands Out
Global Company, Local Impact: Work for a 150-year-old global mining leader at one of California’s most iconic and historically significant industrial sites
Permanent Employment: This is not a contract or temp role — it is a permanent full-time position with job security and long-term career growth within Rio Tinto
Exceptional Benefits: Medical, dental, vision, life insurance, 401(k) match, employee share program, generous leave, EAP, and caregiver leave
Safety-First Culture: Rio Tinto invests heavily in team safety — every shift, every day, your wellbeing comes first without exception
Position Overview
The Supply Specialist at Rio Tinto’s Boron, California operation is a permanent warehouse and inventory role at the operational core of the world’s largest open-pit borax mine. You will be responsible for receiving, tracking, and distributing materials and supplies across the facility — ensuring the Borax plant always has what it needs to run efficiently and safely. Day-to-day duties include conducting inventory surveys, determining reorder points, performing economic order quantity calculations, transporting materials to delivery locations, completing clerical and data entry tasks, and operating equipment as required. This role reports to the Supervisor of Maintenance and Services and sits within a world-class operations team that values safety, inclusion, and continuous learning.
Why This Role Matters: Rio Tinto Borates supplies approximately 25% of the world’s demand for refined borates — minerals that are essential to modern agriculture, glass manufacturing, electronics, and the global energy transition. As a Supply Specialist at the Boron mine, the materials you receive, inventory, and distribute every shift are the operational fuel that keeps one of the world’s most strategically important mineral production facilities running. In a company that has been mining for 150 years, every team member’s contribution — including yours — matters deeply to the mission.
Key Responsibilities
Materials Distribution & Transportation
- Transport materials and supplies to appropriate delivery locations across the Borax plant facility — ensuring timely, accurate delivery to all departments and work areas
- Operate equipment as required by job duties — including forklifts, pallet jacks, or other warehouse equipment — in full compliance with Rio Tinto safety standards and operational procedures
- Adhere to all site-wide Health, Safety, Environmental, and Quality (HSEQ) compliance standards throughout all material handling and transportation activities
Inventory Control & Warehouse Operations
- Conduct comprehensive inventory surveys of materials and supplies on hand — maintaining accurate, up-to-date stock records across all warehouse locations
- Determine reorder points for critical materials and perform economic order quantity (EOQ) calculations to ensure optimal stock levels without over-ordering or creating shortages
- Initiate and process file changes on stocked items — keeping the inventory management system current, accurate, and audit-ready at all times
- Maintain a detail-oriented, organized approach to all stock control activities in a fast-paced mining operations environment
Clerical & Administrative Support
- Perform clerical tasks including receipt inputs for all inbound shipments, return-to-stores inputs, compiling and typing operational reports, filing documentation, and accurate data entry into warehouse systems
- Answer department telephones in a professional, efficient manner — directing inquiries appropriately and supporting communication across the maintenance and services team
- Handle multiple administrative tasks simultaneously while maintaining accuracy, efficiency, and a courteous manner — even during high-demand operational periods
Safety & Compliance
- Uphold Rio Tinto’s safety-first culture in every task — understanding that every hour of every shift, personal safety and team wellbeing is the number one priority
- Actively support and adhere to all site-wide HSEQ compliance standards and company policies across all warehouse and supply operations activities
- Complete additional duties and projects as assigned by the Supervisor of Maintenance and Services
Qualifications & Requirements
Required Qualifications
- High School diploma or GED — minimum educational requirement for this permanent full-time Supply Specialist role
- Valid California state driver’s license — required for material transportation activities across the mine site
- Must be able to read and write in English and demonstrate solid basic mathematical skills for inventory calculations and reorder point analysis
- Computer literacy is required — must be comfortable using warehouse management systems, data entry platforms, and standard office software
Experience & Skills
- Prior experience in inventory control and warehousing is preferred — candidates with direct warehouse or supply chain experience will have a strong advantage
- Detail-oriented approach with demonstrated ability to manage multiple tasks simultaneously in a fast-paced environment without sacrificing accuracy or efficiency
- Professional, courteous, and efficient manner in all team and interdepartmental interactions — this role operates within a collaborative, safety-driven operations environment
- Strong commitment to personal and team safety — Rio Tinto’s non-negotiable first principle for every role at every level
About Rio Tinto
Rio Tinto is one of the world’s leading global mining and materials companies — operating in 35 countries across iron ore, copper, aluminum, critical minerals, and borates production. With 150 years of mining experience and a workforce built on safety, inclusion, and innovation, Rio Tinto is a company where careers grow, contributions are recognized, and the work genuinely matters. At the Boron, California site, Rio Tinto Borates supplies approximately 25% of the world’s refined borate demand — minerals essential to agriculture, manufacturing, and the global clean energy transition — making this one of the most strategically significant mining operations in the United States.
Equal Opportunity: Rio Tinto is fully committed to equal employment opportunity. All qualified applicants are considered without regard to race, color, sex, age, religion, national origin, disability, or any other characteristic protected by law. Rio Tinto participates in E-Verify to confirm work authorization.
Who Should Apply?
- Warehouse & Inventory Specialists: With prior experience in stock control, materials distribution, or warehouse operations seeking a permanent, well-compensated mining industry role in California
- Supply Chain Professionals: With inventory management, reorder point, and EOQ calculation experience looking for a stable, benefits-rich position at a global mining leader
- Detail-Oriented Warehouse Workers: Who are computer literate, safety-conscious, and comfortable working in a fast-paced industrial environment with multiple simultaneous tasks
- California-Licensed Drivers: With a valid state driver’s license and a commitment to safe materials handling and site compliance in a world-class mining operation
- Career Starters in Mining / Industrial Sectors: With a High School diploma or GED and a strong work ethic — Rio Tinto actively invests in the development and growth of every team member
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