Metminco has announced the results of the assays received to date for the first two diamond drill holes from its Tesorito gold prospect in the Quinchia district, Colombia. The Quinchia district occurs in the mid Cauca belt, host to large gold deposits such as La Colosa (28Mozs) and Quebradona (21Mozs). The Tesorito prospect occurs 800m south east of the Company's Miraflores deposit (0.88Moz gold Resource) and approximately 3km south east of the Company's Dosquebradas deposit. It is also located approximately 2km north of the large undrilled Chuscal porphyry target. The Company's current 1,500m diamond drilling program, is designed to confirm and expand the gold mineral system intersected in drilling by a previous operator. This included hole TS_DH_02 which reported 384m @ 1.1g/t Au from surface to end-of-hole. The program will also test a previously undrilled geophysical anomaly located approximately 300m to the northwest of TS_DH_02. Although early in its exploration history, Metminco believes the mineralisation at Tesorito represents the gold-rich cap of a deeper base-metal rich porphyry system. This is supported by the phyllic alteration and increasing base-metal content and igneous activity with depth seen in several holes. The intensity of hydrothermal alteration seen at Tesorito together with prolific gold mineralisation already recognised in the Quinchia district and elsewhere in the Cauca belt suggests this to be major mineralising system which offers great potential for exploration success.Next Stepsreceipt of assays from the final 2 diamond holes and remainder of TS_DH_05undertake a detailed logging program on the recently acquired drill core supported by mineralogical analysis to determine vectors for focusing next stage exploration drilling. From the results received to date from Tesorito and the previous historical drilling:all 5 holes drilled into have returned gold mineralisation from a multi-phase porphyritic intrusive complexthe gold mineralisation is extensive in area, and occupies at least 400m x 180m and is open laterally to the north-northeast and east-southeasthigher grade gold areas of over 1 g/t Au occur within the broader mineralisation envelope of approximately 0.5 g/t Audepth of porphyry mineralisation has been seen up to 380m below surface (TS_DH_02) and the presence of garnets in previous and present drill core are indicative of a deep vertical plumbing systemintense phyllic alteration mapped by the significant IP anomaly located to the west of the known Tesorito porphyry and seen in the surface mapping and sampling and the drill core, suggests a major hydrothermal system exists approximately 200-300m to the north west of the locus of the Tesorito prospectphyllic alteration is generally indicative of the upper and lateral zones of a porphyry system. There is a general increased presence of A-, B-, and M-type veining down-hole in holes drilled towards the IP anomaly. Furthermore, initial logging indicates a general increase in the presence of potassic alteration in the same direction along with an increasing presence of base metals with depth. These factors are all pointing to the central zone of the Tesorito porphyry system being located primarily beneath the IP anomaly with porphyry-associated mineralisation extending laterally upwards from itthe localised controls on higher order gold mineralisation traversed by TS_DH_02 and TS_DH_04 require further investigation to determine their distinct characteristics, and their likelihood of being repeated within the porphyry complexDetails of the ProgramTS_DH_04 was collared from the same platform that was used to drill TS_DH_02 and was drilled at a steeper angle (70 degrees) to test the well-mineralised stockwork veining developed in porphyritic sub-volcanic (shallow depth) dacitic and andesitic intrusives.TS_DH_05 was drilled to test for lateral and upward extensions of the well-mineralised stockwork veining traversed by drill hole TS_DH_02. In addition, TS_DH_05 was designed to test the nature and extent of the mineralisation beneath the > 100 ppb gold in soil geochemical anomaly and the high grade gold assays returned from sampling in trenches.TS_DH_06 was drilled principally to test the nature and extent of what has caused the strong IP geophysical response over a north-northeast trending 1,000m long x 300m wide zone developed to the northwest of the gold in soil geochemical anomaly. It was designed to traverse the zone which was modelled to have the strongest coincident chargeability and conductivity readings.TS_DH_07 was designed to test the three-dimensional geometry of the higher-grade mineralisation returned from TS_DH_02 and any mappable controls which could assist in determining the extent and frequency of the higher-grade zones within the porphyry complex. Details of the drill resultsTS_DH_04 has confirmed the continuation at depth of the gold mineralisation beneath TS_DH_02 over similar intervals and grade for the first 180m, with downhole intercept of 179.8m @ 0.70 g/t Au, 0.91 g/t Ag and 0.064% Cu, including 21.8m @ 1.03 g/t Au, 0.92 g/t Ag and 0.077% Cu and 90.0m @ 0.83 g/t Au, 1.05 g/t Ag and 0.078% Cu. The gold mineralisation is associated with stockwork veining exhibiting A-, B- and M-type veins that typify porphyry-style mineralisation. The drill hole then passed through an alternating sequence of basement blocks separated by relatively narrow intrusive porphyritic dacitic and andesitic dykes and was terminated in basement rocks at 400m. The basement blocks comprised contact metamorphosed arkosic sandstones likely to be part of the Tertiary-aged Amaga Formation and deformed fine-grained basaltic lavas of the Cretaceous Barroso Formation.Of further interest, TS_DH_04 intercepted a zone of high strain within basement (basalt) from 343m to 345m that returned assays of 17.95 g/t Ag, 1.99 g/t W and >1% Zn.