The Cancha prospect, which is 100% owned by Sumitomo Metal Mining Co., Ltd. (SMM), is located in Huancavelica department, Republic of Peru. SMM started its prospecting survey in 2012. Geological studies and electric survey found out strong phyllic alteration accompanying sheeted quartz veins with gold-copper geochemical anomaly which corresponded with distribution of low resistivity and high chargeability anomalies. The alteration zoning with increasing depth typically grades from a shallow advanced argillic zone through phyllic zone into sericite–chlorite zone, which is interpreted as typical telescoped porphyry related system. Since Au-Cu porphyry type mineralization is expected in the project, SMM is proceeding procedures to obtain required permissions from the various different authorities. To carry out drilling exploration in Republic of Peru, it is required to complete Declaration of Environmental Impact (DIA) and its related permissions such as local community agreement, water use license, certificate of absence of archaeological remains and indigenous community protection protocols, which can take more than a half year or several years. Additionally, as the mine closure laws are applied to the early stage exploration projects, the environmental management obligations are imposed for many years after the project closing. Mining right holders should conduct more careful and long-term management and monitoring over projects than in other mining countries.

We briefly report results of field and core observation of polymetallic W deposits in the Jiangnan porphyry W belt and Penshang Sn-Pb-Zn deposits in the middle to lower Yangtze River Belt during an excursion of SEG 2017 in Jiangxi Province, China. The W deposits including Shimensi, Yikuangdai, Shiweidong, Dalingshang and Yangchuling are typically characterized by W ± Cu ± Mo mineralization in quartz veins, quartz veinlets and /or greisen associated with Early Cretaceous porphyrytic granites intruding into Neoproterozoic metasedimentary and / or granitic rocks. Sheelite mineralization has been recently discovered and the deposits are being explored. The Penshang Sn-Pb-Zn deposits typically have stratiform ore bodies with skarn mineralization and the Sn mineralization is associated with the intrusion of Early Cretaceous Pengshan granite.

JOGMEC is a governmental organization that collaborates with governmental agencies and companies both at home and abroad with a view to secure stable supplies of natural resources and energy for Japan, while contributing to the development of resources and energy business worldwide as the duty of a large energy-consuming nation. Coal is a vital resource for the Japanese economy and industry, and demand for it has been rising worldwide. JOGMEC contributes to the coal industry in various ways including conducting geological surveys, developing technologies, and providing financial support and information, in order to secure stable coal supply in Japan.