Mining Data That Empowers Informed, Data-Driven Decision Making and Fuels Growth
Our Data

Whether it’s our vast Companies and Properties database or our comprehensive Mining Costs database, our first priority is delivering accurate and reliable data that our clients can have confidence in. As curious, forward-thinking problem solvers, we deliver first class data that empowers informed decision making and fuels growth. Our highly skilled engineers and data analysts have been curating our proprietary databases for over 40 years.
Our experts gather data from a variety of sources, collecting and normalizing the information to meet the specific needs of those working in or with the mining industry. Fueled by our core values of Confidence, Curiosity, and Growth, our team works tirelessly to ensure we are always providing the most accurate, reliable, and timely data possible.
Companies and Properties
Our Companies and Properties database consists of over 18 K companies, 39 K properties, and 2 M documents, making it one of the most exhaustive mining market intelligence databases in the world. Not only does it cover a wide breadth of companies and properties, but the depth of data available is unparalleled. Dig in to corporate data, like financials, M&A, and leadership, along with property level data such as development studies, drill results, reserves and resources, production, and more. View the most current data available, or dive into historical data going back 40 years.


Mining Costs
Our Mining Costs database is the most comprehensive dataset of its type anywhere in the world. As experts in mining costs for the last 40 years, our team has perfected the process of sourcing the most accurate and reliable information available on subjects ranging from capital and operating costs for equipment, to energy and supply costs, to everything you need to know to calculate reclamation bonds. And that barely scratches the surface. Combined with decades of engineering knowledge and cutting edge cloud-based tech, we provide state of the art mining cost estimation data and tools unlike any other.
Our Team

Mike Sinden

Mike Sinden
Vice President
Mike has over 20 years experience in the natural resources sector, predominantly in the area of research and data collection, as well as product management. He spent 18 years at Wood Mackenzie, working in metals and ferrous market research, well as supporting institutional investor clients leverage the platform for research and mining due diligence purposes. At Costmine, he leads the research and data business as we grow our mine property database, equipment and labor cost data, estimation tools and software, where we serve engineers, financial professionals and governments. Mike holds a B.Sc in Mechanical Engineering from Queen’s University as well as an MBA from Duke University.
Chris Berry
Chris Berry
Vice President, Sales
Chris has over 20 years experience in the mining industry. Most recently he spent six years at Wood Mackenzie as a Senior Account Manager, working with metals & mining clients including governments, large producers, institutional investors and manufacturers. At Costmine, he is focused on growing our research and data business by continually exploring how our highly valued data products can be best utilized by our clients. Chris holds a MBA from Imperial College London.
Companies and Properties Team

Katja Freitag
Katja Freitag
Manager, Mining Intelligence
Katja Freitag is a geologist with 25 years of experience in the mining industry. This includes 5 years in McKinsey’s metals and mining team where she honed her analytical skills and learned to love excel, and 3 years working underground at the Palabora Mine, South Africa, in both technical and operational roles. Katja moved to Canada in 2013 to manage Edumine, The Northern Miner Group’s online education platform that provides professional development courses for people in the mining industry. In 2018, she took on the leadership of Mining Intelligence. She has always enjoyed working with data and loves the challenge of constantly improving and evolving the data offering Mining Intelligence provides to its clients. Katja has a Master’s degree in Geology from the Technical University of Clausthal, Germany, and a PhD from Colorado School of Mines, USA.

Claudia Gheorge
Claudia Gheorge
Mining Intelligence Data Operations Manager
Claudia Gheorghe is Mining Intelligence's Manager of Data Operations. She is a geologist with over 25 years of experience in oil and gas, mineral exploration and mining industry. Prior to joining InfoMine Inc as geoanalyst in 2007, Claudia worked as Mineralogist for diamond company Mineral Services Inc. Over the years, she gained valuable experience not only in Geo analysis, data quality control and training new Geo analysts, but also she was involved in the continuous development,functionality and improvement of the Mining Intelligence database and admin interface. Claudia has a Master's Degree in Geology from the KU Leuven, Belgium.
Mining Costs Team

Jennifer Leinart
Jennifer Leinart
Director, Cost Estimating
Jennifer has over 40 years of experience in the mining industry, from exploration through development and mine operations. She is a specialist in cost and resource estimating and economic analysis, starting out in the team that developed the Red Dog mine in Alaska after it was discovered in the 1980s. She has worked on projects ranging from metals to coal and diamonds to garnets in North American and international locations. Jennifer is a registered member of SME and a licensed professional geologist based in Spokane, Washington, USA. She holds a BSc degree in Geology from Colorado State University.

Brad Terhune
Brad Terhune
Cost Analyst/Senior Geologist
Brad has over 20 years of experience in the mining industry, including exploration consulting and mine operations in North America and East Africa. He has been integral in the derivation of costs associated with prefeasibility stage and earlier mine and mineral property evaluations at Infomine. He is a Registered Member of SME and a licensed professional geologist based in Spokane, Washington, USA. He holds a BS degree in Geology and Geophysics from the University of Missouri – Rolla and a MS degree in Geology and Geological Engineering from the South Dakota School of Mines and Technology.

Krista Noyes
Krista Noyes
Cost Analyst/Reclamation Specialist
Krista surveys and publishes the Mine Salaries, Wages and Benefits Reports, other compensation surveys, and the Reclamation Cost Service, published by InfoMine. Prior to joining the CostMine team at InfoMine, she was an Environmental Coordinator with Newmont’s Western Nevada division, based at the Twin Creeks mine and at Hecla Mining Company’s successfully reclaimed and closed Rosebud Mine in Northern Nevada. She holds a BS degree in Geology from the University of Idaho.

David Boleneus
David Boleneus
Cost Analyst/Senior Geologist
David has over 45 years of professional experience with major mining companies, oil companies and consulting organizations across the globe. He has spent more than 20 years in geological research with U.S. Geological Survey’s Geologic Division and with U.S. Bureau of Mines’ Branch of engineering and economic analysis. His numerous investigations resulted in over 20 peer-reviewed professional publications. He is a Registered Member of SME and Licensed Geologist-Hydrogeologist and is certified as a mineral examiner with U.S. Department of Interior.

Ali Vossoughian
Ali Vossoughian
Cost Analyst/Mining Engineer
Ali began his career as a mining engineer in his home country of Iran, helping optimise HSH Stone Quarry before completing his master's degree in mining engineering at the Colorado School of Mines. There, he specialized in optimizing Tunnel Boring Machines (TBM) and drill bit performance, supplemented by a minor in Mineral and Energy Economics. Post-graduation, Ali worked at Nevada Gold Mines and Giga Factory Tesla. As a valuable member of the Costmine Intelligence engineering team since 2022, Ali is part of the Sherpa cost estimation software team. There, he helps optimize and improve the algorithms and cost data flows for the product.

Mahdieh Dianati
Mahdieh Dianati
Cost Analyst
Mahdieh holds a master’s degree in Mineral Processing Engineering from Yazd University, Iran, supplemented by a master’s degree in Industrial Engineering. Before joining Costmine, she spent five years with System Group, Iran's leading software company as a Business Intelligence Specialist. Since joining our team in 2023, Mahdieh has been an essential member of the Costmine Intelligence engineering team, optimizing algorithms, and improving cost data flows for our Sherpa cost estimation software. Her unique background enables us to provide innovative cost estimation solutions to our clients, specifically in the field of mineral processing.

Michael Grimm
Michael Grimm
Cost Analyst/Mechanical Engineer
Mike has over 15 years of experience in manufacturing, including new product design for commercial and industrial kitchens, ballpark concessions, furniture and high strength composites and has experience as a project manager/designer and trainer in an HVAC company. For nearly seven years, he and his wife Karrie owned and operated a small corrugated converting business serving over 300 customers in 19 states. He spent an additional 10 years in business development promoting bubbling fluidized bed waste to energy boiler systems working with clients in North and South America, Australia and parts of the Middle East. He holds a BS degree in Mechanical Engineering from the University of Colorado.
The Costmine Intelligence Story
Costmine Intelligence is the product of decades of dedication from experts across multiple mining professions, stemming from the collaboration of two pioneering companies in the 1980s: Western Mine Engineering and InfoMine.
In 1983, Otto Schumacher, during his tenure at the Bureau of Mines in Spokane, recognized a demand for a detailed mining cost dataset. Faced with the challenge of sourcing the data, he created the Mining Cost Service, later joined by Jennifer Leinart and Scott Stebbins. Together, they expanded the database and launched the groundbreaking SHERPA software.
Meanwhile, InfoMine, established by Andy Robertson in Vancouver, launched the Companies and Properties database, initially distributed via floppy disks. The goal? To furnish quality mining data for industry professionals and investors.
Over time, the two companies fostered a cooperative bond. In 2006, as Otto looked towards retirement, InfoMine acquired Western Mine Engineering, newly minted as CostMine. Their combined expertise resulted in a synergistic growth, becoming the digital hub for mining enthusiasts. As the years rolled on, the Companies and Properties database evolved and expanded into what is now known as Mining Intelligence under the leadership of Katja Freitag.
Throughout all these transitions, the unwavering commitment of both companies has been to provide accurate and trustworthy mining data, backed by seasoned mining experts.
Our shared legacy and aligned values of Confidence in our data, Curiosity about technology and mining, and a Growth mindset geared toward the goal of building a better future for everyone in the mining industry that defines our direction and fuels our mission to deliver accurate and reliable mining data that empowers informed, data-driven decision making.
