El Quevar
Amec Foster Wheeler E&C Services Inc., NI 43-101 Technical Report on Updated Mineral Resource Estimate, Feb. 26, 2018
Amec Foster Wheeler E&C Services Inc., NI 43-101 Technical Report on Preliminary Economic Assessment, Sept. 4, 2018
Velardeña
Tetra Tech, NI 43-101 Technical Report - Preliminary Economic Assessment, Feb. 20, 2015
Santa Maria
Tetra Tech, NI 43-101 Technical Report - Updated Preliminary Economic Assessment, Sept. 14, 2018
Rodeo
Tetra Tech, NI 43-101 Technical Report - Mineral Resource Estimate, Jan. 26, 2017