Madoro Metals Corp. ("Madoro" or the "Company") announced results from a limited program of uranium-lead ("U-Pb") age dating on selected caldera-system (supervolcano) rocks from the region of its active exploration programs in the state of Oaxaca. The study was undertaken to better quantify the relative ages of rocks associated with gold, silver, and base metal mineralization at the Company's projects and compare these to the ages of similar rocks from the areas of nearby producing mines (e.g.: Gold Resource Corporation's Arista-Switchback and Alta Gracia mines), which lie approximately 30 kilometers along trend from the Company's property. It was previously speculated, based on the understanding of local and regional geologic controls, that these mineralized systems are similar in nature and with similar upside exploration potential for bonanza grade Au-Ag polymetallic epithermal deposits. The results indicate that: The 3 calderas associated with Gold Resource Corp.'s active Arista-Switchback mine and related epithermal systems all developed between approximately 19-18 Ma (million years ago). The caldera system associated with the Company's Yautepec project developed in a similar age range of approximately 19-18 Ma. The similarities in ages indicate that the area of Gold Resource Corp.'s producing mines and Madoro's Yautepec entire project area is part of a singular magmatic-structural-hydrothermal system spanning 60-kilometers distance; the entire trend may be considered to have similar potential for high-grade epithermal Au-Ag polymetallic deposits.