Boutique Appraisal
Ellis International Services, Inc.
Firm Details Restricted
GoldSilverCopperLithiumRare EarthsMonazitePalladiumPlatinum Group Metals+7 more
North America, Global4 services available
Mineral Property Valuation
Find the Right Mineral Evaluator
MineralEval Directory is an informational index of 30 mineral property evaluators and appraisers worldwide, covering 32 commodities across precious metals, battery metals, rare earth elements, critical minerals, and base metals. Listed firms report holding credentials from IIMA, SME, VALMIN, CIMVAL, or equivalent professional bodies and reference international valuation standards including IMVAL and NI 43-101.
30
Listed Firms
32
Commodities
6
Regions
8
Standards
Mineral Intelligence
32 Mineral Profiles. 5 Categories. Data-Driven.
Explore geological formation, commercial applications, global deposits, and valuation methodology for each commodity.
Covering precious metals, battery metals, rare earth elements, critical minerals, and base metals across global deposits
Evaluator Directory
Listed Firms & Appraisers
Evaluator details are available upon request. Browse by mineral and schedule a call with Thomas Brachey.
Boutique Appraisal
John T. Boyd Company
Firm Details Restricted
GoldSilverCopperTungstenUraniumManganeseTitaniumBase Metals+2 more
North America, Global5 services available
Boutique Appraisal
Behre Dolbear
Firm Details Restricted
GoldSilverCopperLithiumRare EarthsMonazitePalladiumPlatinum Group Metals+4 more
North America, Global5 services available
Boutique Appraisal
Mineral Valuation Specialists
Firm Details Restricted
GoldSilverCopperUraniumTungstenVanadiumManganeseTitanium+6 more
North America4 services available
Boutique Appraisal
Gustavson Associates
Firm Details Restricted
GoldSilverCopperLithiumUraniumTungstenRare EarthsBase Metals
North America, South America, Global5 services available
International Consultancy
SRK Consulting
Firm Details Restricted
GoldSilverCopperLithiumRare EarthsMonazitePalladiumPlatinum Group Metals+11 more
North America, South America, Africa, Europe, Asia-Pacific, Global7 services available
Industry Standards
Valuation Standards & Codes
Mineral property valuations are governed by six primary international codes: IMVAL (International), CIMVAL (Canada), VALMIN (Australia), SME Valuation Standards (United States), SAMVAL (South Africa), and the RICS Red Book (United Kingdom). Each code requires that valuations be prepared by a Qualified Person or Competent Person with relevant education, experience, and professional certification. The International Institute of Minerals Appraisers (IIMA) serves as the principal certifying body, awarding the Certified Minerals Appraiser (CMA) designation since 1991.
Last updated: Compiled by Thomas Brachey, PMP
IIMA -- International Institute of Minerals Appraisers
The primary professional organization for certified minerals appraisers since 1991.
IMVAL
InternationalInternational Mineral Valuation Committee Template
A principles-based template recognized as a common set of minimum requirements for national codes concerning the valuation of mineral assets.
Learn moreSME
United StatesSME Standards and Guidelines for Valuation of Mineral Properties
Published by the Society for Mining, Metallurgy & Exploration, these standards guide the valuation of mineral properties in the US.
Learn moreCIMVAL
CanadaCIM Code for the Valuation of Mineral Properties
Sets out the standards and guidelines for the valuation of mineral properties in Canada.
Learn moreVALMIN
AustralasiaAustralasian Code for Public Reporting of Technical Assessments and Valuations
Obligatory for AusIMM members for reports relating to mineral assets required under Corporations law.
Learn moreSAMVAL
South AfricaSouth African Code for the Reporting of Mineral Asset Valuation
Ensures valuations are transparent, complete, and prepared by competent valuators.
USPAP
United StatesUniform Standards of Professional Appraisal Practice
The generally recognized ethical and performance standards for the appraisal profession in the United States.
JORC
AustralasiaJoint Ore Reserves Committee Code
The Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves.
NI 43-101
CanadaNational Instrument 43-101
Canadian securities regulation governing the disclosure of scientific and technical information about mineral projects.
Due Diligence
Indicators of Fraud in Mineral Valuation
The five most common indicators of fraud in mineral property valuations are: (1) unrealistic resource estimates that significantly exceed comparable deposits, (2) absence of a Qualified Person or Competent Person sign-off as required by IMVAL and NI 43-101, (3) missing or fabricated drill hole data and assay certificates, (4) valuations that materially exceed recent comparable transactions without justification, and (5) failure to disclose material environmental liabilities, permitting risks, or encumbrances. The highly technical nature of mineral estimation can be exploited by parties seeking to inflate asset values.
Last updated: Compiled by Thomas Brachey, PMP
Lack of Independence
The evaluator has a direct financial interest in the property or the commissioning company, compromising their objectivity.
Unjustified Assumptions
The use of overly optimistic commodity price forecasts, unrealistic metallurgical recovery rates, or underestimated capital and operating costs without robust justification.
Non-Compliance with Standards
Failure to adhere to recognized reporting codes (e.g., NI 43-101, JORC, SME Valuation Standards) or the absence of a sign-off by a verified Qualified/Competent Person.
Data Manipulation
Selective reporting of drill hole data (e.g., highlighting only high-grade intercepts while ignoring barren zones) or inappropriate statistical treatment of outlier grades.
Opaque Methodologies
The valuation relies on proprietary or undisclosed methodologies rather than accepted industry approaches (Income, Market, or Cost approaches).
About This Directory
Navigating the Mineral Valuation Landscape
The valuation of mineral properties requires a synthesis of geological expertise, mining engineering, and financial acumen. Compiled by Thomas Brachey, this directory lists 30 evaluators and appraisers worldwide across 32 commodity categories, from precious metals and battery minerals to individual rare earth elements and critical specialty metals.
Whether you are researching boutique appraisers for a specific litigation case, global consultancies for cross-border projects, uranium ISR specialists, rare earth element-level analysts for neodymium and dysprosium, or market intelligence firms for graphite and battery metals pricing, this directory provides a reference starting point. Schedule a call with Thomas Brachey to discuss your needs.
Last updated: Compiled by Thomas Brachey, PMP
Credentialed Professionals
Listed firms report employing Certified Minerals Appraisers (CMA) or recognized Qualified/Competent Persons.
Global Coverage
From North America to Australasia, find evaluators with expertise in your jurisdiction and commodity.
Standards Referenced
Listed firms reference recognized valuation codes including IMVAL, SME, CIMVAL, VALMIN, and USPAP.
Research-Backed
Directory compiled from industry research, professional organizations, and verified public records.
IIMA Standards
The International Institute of Minerals Appraisers has established standards of education, experience, and professional conduct since 1991.
Frequently Asked Questions
Mineral Valuation Essentials
Answers to common questions about mineral property evaluation, international standards, and the information available through this directory.
Directory Principal
Thomas Brachey
PMP · Dallas, Texas
Your Point of Contact
An Experienced Network, Built Over Years
Thomas Brachey brings years of professional experience at the intersection of natural resources and global markets. With a background spanning oil and gas, rare earth minerals, commercial real estate, and technology, he has developed an extensive professional network across multiple industries and geographies.
His approach is deliberate: every conversation is purposeful, every introduction is considered, and every engagement is conducted with the professionalism and discretion that sophisticated market participants expect. Thomas is available to discuss your mineral valuation questions and share relevant information from the directory.
Whether you have questions about mineral property valuation standards, are researching evaluator qualifications, or would like to discuss the directory's resources, an introductory conversation with Thomas is a good starting point.
Global Professional Network
Relationships spanning six continents, built through years of engagement with professionals, operators, and institutions across diverse jurisdictions.
Multi-Sector Experience
Professional background across oil and gas, rare earth minerals, commercial real estate, and technology, providing broad context for mineral valuation discussions.
Professional Introductions
Engagement with experienced professionals, family offices, and institutional participants. Every introduction is considered and every relationship is substantive.
Structured Approach
Disciplined methodology for navigating complex, multi-jurisdictional mineral valuation questions with professionalism and discretion.