Develop Global Limited
New South Wales




2022 / 08 / 15




80% Ag @ $0/oz capped at A$27M
A$1M per 1.0 Mt tailings ore processed capped at A$10M

The Woodlawn Zinc-Copper Project is a high-grade, volcanogenic massive-sulphide (VMS) deposit situated in New South Wales, Australia, located approximately 50 km northeast of Canberra and 250 km southwest of Sydney.

The Woodlawn deposit is comprised of 12 known sulphide lenses that form three mineralized horizons locally disrupted by faulting. The zinc, copper, and lead mineralization occurs as massive and stringer sulphide lenses, interpreted to have formed both on the sea floor and in coeval mudstones and volcanic breccia flows.

A positive Feasibility Study was completed in mid-2016 and in April 2024, a Production Restart Study was announced that was based on a 0.85 Mt per annum underground mine producing an average 12,000 tonnes of copper and 36,000 tonnes of zinc per annum with a 10-year mine life. The mine plan is underpinned by Underground Proven & Probably Mineral Reserves of 6.0 Mt grading 3.6% Zn, 1.5% Cu, 1.3% Pb, 29.0 g/t Ag and 0.4 g/t Au (at NSR cut-off of A$100/t).

The Mineral Reserves are based on the updated March 2024 Underground Mineral Resource estimate, which consists of:

  • Measured Resources of 1,293 kt grading 5.2% Zn, 2.1% Cu, 1.6% Pb, 47.7 g/t Ag and 0.9 g/t Au;
  • Indicated Resources of 6,833 kt grading 4.7% Zn, 1.8% Cu, 1.7% Pb, 34.6 g/t Ag and 0.4 g/t Au; and
  • Inferred Resources of 3,135 kt grading 8.5% Zn, 1.6% Cu, 1.6% Pb, 70.0 g/t Ag and 0.5 g/t Au

(at NSR cut-off of A$100/t).

Recent Activity

    September 2023

    An updated mine plan was announced that stated Woodlawn will be a 0.85 Mt per year underground mine capable of producing 10 kt of copper and 35 kt of zinc annually. The life of mine payable metal is expected to be 60 kt of copper and 190 kt of zinc. An update to the mineral resources is anticipated for the end of 2023.

    July 2022

    Preparations are well advanced for the underground development of drill platforms which will enable an extensive underground drilling campaign to begin by end of year. The drilling is aimed at converting Inferred Resources to Indicated, extending the mineralized lenses at depth/along strike, and drill testing recently identified targets.

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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Asset Handbook

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Annual Report

Our 2023 Annual Report includes our annual Financial Statements and Management Discussion & Analysis and a letter from Sandstorm’s President & CEO.


Sustainability Report

Learn more about Sandstorm’s approach to sustainability including our due diligence process, mining partnerships, and employee engagement.