2017 Drill Program

Drill Hole Location Map with Magnetic Anomalies and Existing Zinc and Tin Resources

The map below illustrates the collar locations and drill traces of the drill holes completed and in progress at South Ayawilca and West Ayawilca. The table below the map provides the status of the drill holes as at April 18, 2017. Complete drill results reported to date can be found at the bottom of this page.

The map above shows magnetic susceptibility at 4,000 metre elevation (approximately 200 metre depth); hot colours indicate magnetic zones and cold colours are non-magnetic.


2017 Drill Program Overview

The Company received new 3 year drill permits for its Ayawilca property in February 2017. The new drill permits cover an area that is approximately three times the area covered under the previous drill permits, and include major new geophysical/geochemical anomalies that have never been drill tested.

A 10,000 metre diamond drill program commenced at the Property in mid-February 2017.

Drilling is focusing initially at South Ayawilca. The first drill hole of the 2017 program, hole A17-56, targeted a magnetic anomaly at the intersection of two important faults. Partial results from hole A17-56 indicate a new high grade zone discovery at South Ayawilca, approximately 400 metres from any previously defined mineralization at Central Ayawilca (March 6, 2017, news release).

A second drill rig was added in mid-March 2017. The second rig will initially attempted to test the extension of West Ayawilca, the thickest and highest grade part of the existing Zinc Zone resource, where mineralization remains open down-dip to the west (see cross section below). However, drill hole A17-58 was lost before achieving the target depth and the drill rig was mobilized to South Ayawilca due to the significant zinc mineralization encountered by holes A17-56 and A17-57. In addition, a third drill rig was added in South Ayawilca in mid-April 2017 to accelerate drilling of mineralization encountered in this new discovery zone. The Company plans to test the extension of West Ayawilca later in the drill program.

Ayawilca Cross Section (Looking Northwest) Showing Mineralized Zinc and Tin Zones

The Company plans to add a fourth drill rig by early May 2017. Initially this drill rig will test Zone 3, which lies on the eastern side of the Chaucha fault, a major northwest trending structure that also coincides with a magnetic and gravity anomaly. Zone 3 has not previously been drilled (see cross section below).

Ayawilca Schematic Cross Section

Magnetics

Tinka acquired airborne magnetic data on 200 metre-spaced lines over the entire Ayawilca Property, covering 150 km 2, in 2016. Magnetic anomalies are shown as red colours in the figure below, with many anomalies not yet drilled (see map below).

Airborne Magnetic Anomaly Map (RTP) 

Gravity

A strong gravity anomaly was discovered at Ayawilca in 2014 (using a 100m x 100m spaced surface grid). The anomaly covers an area of approximately 4 km 2 . The gravity anomaly is believed to be, in part, caused by sulphides at depth (i.e., sulphides are more dense than the surrounding host rocks). The known zinc mineralization occurs either above or on the margin of the gravity anomalies. The gravity anomaly extends well beyond the limits of the existing drill area, and provides many high priority future drill targets.

Gravity Anomaly Map

Soil Geochemistry

Tinka has conducted extensive surface soil sampling at Ayawilca. Elevated levels of zinc in soils were found above the existing mineral resource zones, suggesting that soil geochemistry is another useful tool for identifying areas of potential zinc mineralization at depth. Large zinc soil anomalies exist at surface at South Ayawilca, Zone 3, Chaucha and Valley. Most of these area are so far undrilled.

Zinc Soil Anomaly Map

Other Prospects

Other prospects at Ayawilca: Tinka has discovered a number of new prospects within its mineral claims at the Ayawilca Property, including the Pucarumi, Tambillo and Yanapizgo areas. These new areas continue to be explored with low-cost surface work.

2017 Drill Results to Date (as at April 18, 2017)