I guess you didn't read this part of the NR:

"It is important for all interested followers of these news releases to understand that no remote sensing techniques can reliably identify and measure individual elements including porphyry copper system elements of copper, molybdenum, gold, silver, lead, zinc, rare earth elements nor their abundance. This requires drilling and careful collection of samples and careful assaying, and then geoengineering to determine whether there may be a resource that can be mined at a profit i.e. an ore body."