Horizonte Minerals Plc: High Grade Drilling Results From the Trial Excavation Site at the Araguaia Nickel Project

LONDON, UNITED KINGDOM--(Marketwired - May 31, 2017) - Horizonte Minerals Plc, (HZM.L)(HZM.TO) ('Horizonte' or 'the Company') the nickel development company focused in Brazil, is pleased to announce the complete results of the 30 hole pre-excavation drilling programme on its 100%-owned Araguaia nickel project ('Araguaia' or 'the Project').

Highlights

  • High grade nickel intersections include:

    • 4.97 metres grading 2.44% Ni

    • 8.69 metres grading 2.31% Ni

    • 8.62 metres grading 2.19% Ni

    • 11.14 metres grading 2.07% Ni

    • 11.05 metres grading 2.02% Ni

  • Delivery of a key milestone as part of the Feasibility Study ('FS')

  • Trial excavation work underway with the aim of converting Probable Reserve to Proven Reserve, conform resource re-conciliation and overall mining conditions

Horizonte CEO Jeremy Martin said, "I am pleased to report the completion of the diamond drill programme over the trial excavation site, the aim of this work was to define an area with near surface transition and saprolite mineralisation that would be representative of the first five to eight years mine life. The drill results demonstrate this and additionally confirm the high grade nature of the nickel mineralisation that has been drill defined across the project. The next stage is the trial excavation programme over this area, which is now underway. The trial excavation programme targets the removal of approximately 20,000 tonnes of ore down to a depth of around 14 metres utilising two 35 tonne excavators and four 35 tonne trucks. We look forward to providing updates on this work stream, and the rest of the FS as we work to develop Araguaia as the next major ferronickel operation."

Further Details - Pre-Excavation Drilling Programme

The drilling programme was designed to test the selected site on the Pequizeiro deposit for the Trial Excavation exercise to feed into the ongoing FS. The key objectives were:

1)

to confirm that the selected site met the minimum criteria of containing 2m of mineralised Transition and 2m of mineralised Saprolite to a total depth below surface of 12m and;

2)

to provide close spaced (5m and 10m) drilling data for the estimation of tonnage and grade into Selected Mining Units ('SMU') (5m x 5m x 2m) for reconciliation with the tonnage and grade of the actual SMUs removed in the Trial Excavation

The drilling was completed on a 5m x 5m grid of six east-west rows of 5 holes each. It comprised a total of 30 holes each drilled to a depth of 20m for a total of 600m of HQ core drilling.

The drilling programme confirmed the first objective of the minimum required intersections of mineralised Transition and Saprolite facies and the detailed sampling and assay of the core has delivered on the second objective of providing the required data for the estimation of the tonnage and grade into the 5m x 5m x 2m SMUs.