Reserves Auditors — NI 43-101, JORC & SAMREC Competent Persons
Reserves and resources auditors — known as Competent Persons (CP) in Australia and Qualified Persons (QP) in Canada — are the qualified mining professionals and consulting firms that provide independent assessments of mining companies' mineral resources and ore reserves under internationally recognised reporting codes: NI 43-101 (Canada), JORC Code (Australia/international) and SAMREC (South Africa). This directory lists the principal CP/QP consulting firms and the standards bodies that publish the codes.
Primary sources only
12 providers
Updated 2026-06-19
Neutrality. TrueSource Metals Hub does not rank or recommend reserves auditors or CP/QP firms. Entries reproduce facts from each organisation's own website. See the full
Ecosystem neutrality statement.
Reserves auditor and Competent Person directory
Alphabetical. Standards bodies listed alongside consulting firms.
- Role
- Mining consultancy / CP firm — Perth, Australia
- Role
- Competent Person (CP) and Qualified Person (QP) services for independent technical reports under NI 43-101 (Canada), JORC (Australia/international) and SAMREC (South Africa).
- Jurisdiction
- Australia, Africa, Asia, Americas — primary offices in Perth, Brisbane, Montreal.
- Role
- Mining consultancy / CP firm — Denver, CO
- Role
- Independent mine valuations, QP/CP reports under NI 43-101 and JORC, feasibility study review, litigation support.
- Jurisdiction
- Americas, Africa, Asia — primary office in Denver, CO.
- Role
- Canadian professional mining body — Montreal
- Role
- Publishes CIM Definition Standards and Best Practice Guidelines for Mineral Resource and Reserve Estimation used in all NI 43-101 Technical Reports.
- Authority
- CIM Definition Standards updated 2014; NI 43-101 is a Canadian securities regulation (CSA NI 43-101) referencing CIM standards.
- Role
- Mining consultancy / CP firm — Perth (ERM subsidiary)
- Role
- CP/QP reports for ASX and TSX-listed mining companies; specialist competencies in gold, base metals, lithium and mineral sands.
- Jurisdiction
- Australia, Africa, Americas, Europe — principal offices in Perth, Brisbane, Johannesburg.
- Role
- Australian/NZ mining reporting standard body
- Role
- Publishes the JORC Code — the internationally recognised standard for resources/reserves disclosure; JORC Code 2012 is current edition.
- Jurisdiction
- Australia and New Zealand mandatory; adopted by 33 CRIRSCO-member countries.
- Role
- Mining consultancy / CP firm — Perth, Australia
- Role
- CP/QP services, resource/reserve estimation, mine planning and geotechnical assessment.
- Jurisdiction
- Australia, Americas, Africa — primary offices in Perth, Brisbane, Toronto.
- Role
- Mining consultancy / QP firm — Toronto (SLR subsidiary)
- Role
- QP/CP reports under NI 43-101 and JORC; independent technical reviews, mine valuations and due diligence.
- Jurisdiction
- Americas, Africa, Asia-Pacific — Toronto primary office.
- Role
- South African mining reporting standard body
- Role
- Publishes SAMREC Code 2016 and SAMVAL Code — mandatory for JSE-listed mining companies; SAMREC is a CRIRSCO member code.
- Jurisdiction
- South Africa (JSE mandatory); CRIRSCO-aligned for international comparability.
- Role
- Mining consultancy / CP firm — Cardiff / Johannesburg (global)
- Role
- CP/QP independent technical reporting; feasibility studies; geotechnical and hydrogeological services; litigation support for mining disputes.
- Coverage
- Africa, Americas, Australasia, Europe, Asia — 45+ offices globally.
- Role
- Engineering / consulting — Pasadena, CA
- Role
- QP/CP services, NI 43-101 technical reports, mine environmental and closure studies.
- Jurisdiction
- Americas, Africa, Australia — primary US office in Pasadena, CA.
- Role
- Mining consultancy / CP firm — Stoke-on-Trent, UK
- Role
- CP reports for AIM and LSE-listed mining companies; specialist competencies in coal, industrial minerals and precious metals.
- Jurisdiction
- UK, Europe, Africa, Central Asia — primary office in Stoke-on-Trent, UK.
- Role
- Engineering / mining consulting — Montreal
- Role
- QP services and feasibility studies under NI 43-101 and JORC; environmental, permitting and mine closure planning.
- Jurisdiction
- Americas, Europe, Australia, Africa — WSP is listed on TSX.