Department of Science and Technology (DOST) Undersecretary Rowena Cristina L. Guevara (center, with eyeglasses) leads the ceremonial groundbreaking of the field testing for the Integrated Gold-Copper Mineral Processing Plant in Barangay Katipunan, Nabunturan, Compostela Valley. The plant will use an environment-friendly mining technology called floatation and gravitation, dubbed “better mines”, which uses no hazardous chemicals like cyanide and mercury. The technology is jointly developed by the DOST and the University of the Philippines Diliman-Mining, Metallurgical and Materials Engineering. (Text by Rodolfo P. de Guzman/Photo by Henry de Leon/S&T Media Service)
