Development

Hugo North Extension

Ag
Au
Cu
Mo
Rio Tinto Group / Entrée Resources Ltd.
Ömnögovi

,

Mongolia

Acquisition:

2013 / 02 / 14

Agreement:

Stream

Terms:

5.62% Au @ $220/oz; 5.62% Ag @ $5/oz; 0.42% Cu @ $0.50/lb

The Hugo North Extension is a rich copper-gold porphyry deposit in southern Mongolia and forms the northern-most extension of the Oyu Tolgoi mining complex. The property is managed by Oyu Tolgoi LLC (OTLLC), a subsidiary of Rio Tinto Group and the Government of Mongolia. Sandstorm acquired gold, silver and copper streams over the Hugo North Extension from Entrée Resources Ltd. Entrée has a 20% joint venture interest with OTLLC on the Hugo North Extension property.

Four deposits have been identified in the mineral resources at Oyu Tolgoi: Oyut, Hugo North, Hugo South, and Heruga. In the initial years of production, the main source of ore has been from the Oyut open pit and while the pit is being mined, underground infrastructure and block cave mine development is ongoing at Hugo North. Conventional crushing, grinding, and flotation circuits process the ore and the concentrates produced are sent to smelters in China.

The Hugo North Extension has a Probable Mineral Reserve of 40.0 Mt at grades of 1.5% copper, 0.5 g/t gold and 3.6 g/t silver ($96.97/t NSR cut-off, May 15, 2021 effective date) and an Inclusive Indicated Mineral Resource of 120.0 Mt grading 1.7% copper, 0.6 g/t gold, 4.3 g/t silver or 2.0% CuEq (0.41% CuEq cut-off, March 31, 2021 effective date). For more information visit www.entreeresourcesltd.com and www.riotinto.com.

Recent Activity

    November 2023

    Underground development at Oyu Tolgoi continued with a total of 72 Lift 1 drawbells opened from Panel Zero while the construction of the conveyor to surface approached 75% completion. In addition, in Q3 2023 the Entrée/Oyu Tolgoi JV approved a budget of ~$2.245 million for exploration on the JV property.

    March 2023

    Rio Tinto announced that underground production began at the Oyu Tolgoi mine. More than 30 drawbells have been blasted since January 2022 and copper is now being produced from the underground mine. Ore is currently being processed from Panel Zero in Hugo North Lift 1 and production will ramp up over the coming years.

    November 2022

    As at the end of October 2022, Panel 1 drilling on the Entrée/Oyu Tolgoi JV Property has completed 6,083 m with an additional 3,550 m in progress. Current drilling is targeting the north portion of the Hugo North Extension.

Use the link below to browse a list of available technical reports for the projects within Sandstorm’s portfolio. For the most up-to-date information on each project, please refer to the project operator or developer.

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Annual Report

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Sustainability Report

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