Data Exchange for Mine Software (OMF)

This sub-committee is made up of representatives from software vendors and mining companies working together to develop the Open Mining Format (OMF), an open-source file specification for 3D data interoperability. The first version of OMF, launched in 2017, supports basic structures including points, lines, surfaces, meshes and volumes. The second version is extending that support to block models. 

OMF offers:

  • The ability to easily share data between software packages.
  • The capacity for companies to seamlessly share data internally or externally.
  • A more streamlined and efficient approach that eliminates manual or convoluted transfer processes.

To achieve the broad industry engagement, which is key for this initiative’s success, GMG has initiated a global outreach program among mining organizations and worked to develop partnerships with other industry associations.

OMF on GitHub

GMG GitHub link

OMF – ReadTheDocs

Business Case

Modern mine planning and exploration routines often require geometric and topological data to be shared between different software programs. There is, however, currently a lack of interoperability between sophisticated mining geology and engineering software programs.

Often, vendors restrict direct access to proprietary Application Program Interfaces (APIs) to protect their intellectual property. Generic file export formats are also becoming less able to accommodate increasingly large and complex data files. As a result, users limit themselves to vendor-specific software suites or operate lengthy and inefficient import and export processes.

This standard will enable significant efficiency gains. Building momentum in the industry and promoting the initiative will result in continual development and evolution. Ultimately, it will bring immense value to the industry by eliminating time wasted on unnecessary data management and by preventing costly mistakes.

Participating Companies

ABB, AgileGeoScience, Agnico Eagle, Alcoa, Alford Mining Systems, Ambuja Cements, Anglo American, AngloGold Ashanti, ArcelorMittal, Austmine, Barrick Gold, BHP, Canadian Natural Resources, Captrics, Carlson Software, CheckMark Consulting, Colorado School of Mines, Dassault Systemes, Data Mine Software, Desert Falcon Consulting, Deswik, EIPTET (training program), Epiroc, Flanders Electric, Flow Partners, Freeport-McMoRan, Geomodelr, Geosoft, Global IO, Global Mining Design, Goldcorp, Hexagon Mining, IBM, IGS (International Geoscience Services), Imago, Innovative Systems, JVA, Kinross Gold, Kynes, Lockheed Martin, Maclean Engineering, Maptek, MasterControl, Metallica Consulting, Micromine, Mine Vision Systems, Minera Yanacocha, MineRP, MineSense Tech, Minetec, MP Consulting, MST Global, Newmont, Objectivity, ORICA, OSIsoft, Peabody Energy, Prairie Machine & Parts, RockMass Technologies, Rockwell Automation, RPM Global, Scania, Schneider Electric, Seequent, Sibanye-Stillwater, Siemens, SMART Systems Group, SSR Mining, Symbiotic Innovations, Teck, TrackVia, University of Queensland, Vale, Vertex Blast, Vuma 3d, Wipro Consulting

Project Updates

OMF 2.0 development is well underway


Significant work has been done since OMF 2.0 launched in February to extend support to block models. The next step is making the format more accessible and getting the word out. Read More...

Interview with Bane Sullivan about the OMF Viewer

It was part of a larger open-source project


The community surrounding GMG’s Open Mining Format (OMF) is expanding. Early this year, Bane Sullivan, a graduate student at the Colorado School of Mines, added an open-source viewer for OMF (omfvtk) to GitHub. We spoke to him about the viewer and his related work. Read More...

January 2019 OMF Update

January has been a very productive month for OMF


The sub-committee has developed an informative support document for using OMF in software packages that support it, a graduate student has added an open source viewer to GitHub so you can view an OMF file, and V2.0 will kick off at a workshop in Toronto in February. Read More...

Upcoming 2-day OMF Workshop in Toronto- February 28-March 1

Interested operators and technical representatives from software companies will come together to work on version 2.0 of the Open Mining Format (OMF)


The aim of this workshop is to define what the OMF block model format will look like and lay out a plan for developing it. This is a chance for software companies who create or use block models, and operators with an in-depth understanding of how their company’s software packages handle block models, to provide valuable input on this standard that enables significant efficiency gains. Read more...

OMF 2.0 Survey Results

Over 250 respondents voiced their priorities for OMF v2.0


In August, GMG’s Data Access and Usage Working Group conducted a survey to better understand the industry’s pain points and needs in regards to data transfer. The results will guide the development of v2.0. There were over 250 respondents Read more...

Data Exchange for Mine Software 3D Interoperability Report

Read the report from November 2017


The Data Access and Usage Working Group’s Data Exchange for Mine Software Sub-committee has published a report on 3D interoperability between mining software packages. Read more...