Matsa considers Thailand to be a very favourable country for mining investment due to its high geological prospectivity, strong legal framework and rule of law, quality of internal infrastructure and well qualified local workforce.

Matsa has a significant tenement holding totalling approximately 700km2 located in the NNW trending Loei-Ko Chang volcanic arc which also hosts the Phu Kam copper deposit (Pan Australia Mining) and the Chatree Gold Mine (Kingsgate Resources). There are two main target areas, Siam Copper Project and Chang01 Copper Project.


The Siam Copper Project was initially targeted on Thailand Department of Mineral Resources regional stream sediment database. Matsa Resources has completed further geological mapping, stream sediment sampling, soil sampling and rock chip sampling. This work, which is ongoing has identified up to 20 copper exploration targets of which 2 are the most advanced, Siam 1 and Siam 2.

The prospectivity of the Siam Copper Project area is highlighted at Siam 1 W where a chalcocite vein assay returned 54.7% copper and 146 g/t silver. The vein is interpreted to be structurally controlled “leakage” from a large concealed copper deposit or alternatively, be part of a more extensive vein system.

Figure 1: Schematic view of the effects of weathering of a primary copper sulphide vein including iron oxide (gossan) formation and leaching of copper above the water table and copper enrichment at and below the water table.

Figure 2: Chalcocite vein with malachite and azurite (copper oxide minerals) at Siam 1

Interpretation of ground IP geophysics over the Siam 1 W area defined elongate bodies up to ~700m long oriented approximately north-south. These anomalies directly underlie the mapped extents of copper mineralised surface float which strongly supports the possibility of a copper sulphide source.

Figure 2: Inversion Model IP