Two holes were drilled on the Asparin Hill porphyry copper-gold target, 700 m west of Valderama. PDA-04 was to drill test deeper disseminated mineralization in the Asparin Hill Zone. It intersected a thick pile of moderate to strongly altered dacitic volcanics and minor propylitised andesite. Narrow zones of hydrothermal breccias with illite-quartz-pyrite alteration and propylitised andesitic dikes cut this sequence. At the bottom of the hole, a quartz-pyrite veined / stockworked zone is developed, wedged between a pyritic shear zone at the top and a post-mineral fault at the bottom. The hole was stopped at 166.00 m in propylitised andesitic volcanics.

PDA-16, a short 45-m drill hole was completed on the eastern margin of a circular topographic depression, 350 m in diameter. It is in an area of strongly anomalous soil geochemistry with boulders of iron-oxide / alunite containing strongly anomalous metal values, and coincident with a broad magnetic high. The entire 45 m of PDA-16 is characterized by dacitic volcanics and volcaniclastics that have undergone intense hydrothermal alteration. Mindoro's consulting petrographer E. Comsti recognized three alteration assemblages: (a) an earlier pervasive illitic / sericitic alteration -- corresponding to the QIP (quartz-illite-pyrite assemblage) in the Valderama Deposit, which is overprinted by (b), K-silicate alteration, characterized by hydrothermal biotite and minor chlorite, and itself overprinted by (c) later sericite-chlorite alteration. The occurrence of chalcopyrite together with K-silicate alteration indicates a possible porphyry copper mineralization at depth. The hole was terminated at shallow depth due to budget considerations at the time. Additional drilling at Asparin Hill will be undertaken at a future date.