For 40 years, Zonge International has been providing contract geophysical field services for minerals exploration, as well as for mine site studies of leach pads, in-situ leaching operations, and groundwater studies. The company also manufactures and sells a full line of state-of-the-art equipment for electrical and electromagnetic geophysics. Worldwide, Zonge International can provide crews, expertise, or equipment for resistivity, IP, CR, CSAMT, TEM, AMT, MT, seismic, magnetics, gravity, or for its customer's specialized research projects.