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Telfer is Greatland’s 100%-owned operating gold-copper mine in the Paterson Province of Western Australia’s East Pilbara region. The mine combines open pit and underground production from the West Dome Open Pit and Main Dome Underground, supported by a large processing complex with two 10 Mtpa trains and nominal capacity of 20 Mtpa. Telfer first produced gold in 1977 and has generated more than 15 million ounces historically. Greatland acquired the operation from Newmont in December 2024 and is positioning Telfer as a long-term regional hub capable of processing both Telfer ore and future high-grade Havieron feed.

Two 10 Mtpa processing trains, giving nominal processing capacity of 20 Mtpa.

Telfer Mineral Resource, Dec 2025: 419 Mt at 0.59 g/t Au and 0.09% Cu for 8.0 Moz Au and 370 kt Cu Measured and Indicated Resource, Dec 2025: 170 Mt at 0.69 g/t Au and 0.13% Cu for 3.8 Moz Au and 249 kt Cu West Dome Open Pit Resource: 338 Mt at 0.45 g/t Au and 0.04% Cu for 4.9 Moz Au and 149 kt Cu Main Dome Underground Resource: 12.3 Mt at 2.14 g/t Au and 0.41% Cu for 0.8 Moz Au and 50 kt Cu Main Dome UG Vertical Stockwork Corridor Resource: 37.5 Mt at 1.09 g/t Au and 0.33% Cu for 1.3 Moz Au and 125 kt Cu West Dome Underground Resource: 8.0 Mt at 2.30 g/t Au and 0.44% Cu for 0.6 Moz Au and 35 kt Cu Telfer Ore Reserve: Greatland’s April 2025 inaugural Telfer Ore Reserve delivered 712 koz Au and 23 kt Cu; updated Telfer Ore Reserve expected in the June 2026 quarter.

Havieron is a 100% Greatland-owned gold-copper development in Western Australia’s Paterson Province, approximately 45 kilometres east of the Telfer mine. The project is planned as a high-grade underground operation feeding ore to Telfer’s established processing infrastructure, creating a brownfield development pathway rather than a stand-alone greenfield plant build. Greatland’s current concept includes an initial 2.8 Mtpa mining rate, with feasibility work assessing expansion toward 4.0–4.5 Mtpa through underground crushing and materials handling. Havieron hosts a large gold-copper resource and is intended to become the next high-grade feed source for the Telfer hub.

Greatland’s earlier Telfer 2-Year Outlook indicated integrated Telfer and Havieron first production expected in FY28.

Ore to be hauled to Telfer and processed through existing Telfer infrastructure. Greatland has assessed expansion from an initial post-ramp-up 2.8 Mtpa mining rate to 4.0–4.5 Mtpa through an underground crusher and material-handling system.

High-grade gold-copper deposit; intrusion-related / breccia-hosted system within the Paterson Province Mineral Resource: 131 Mt at 1.65–1.67 g/t Au and 0.21% Cu for approximately 7.0 Moz Au and 275 kt Cu. Greatland’s website cites 131 Mt at 1.67 g/t Au and 0.21% Cu, while the March 2026 quarterly table lists 131 Mt at 1.65 g/t Au and 0.21% Cu. Treat the difference as rounding/reporting presentation. Ore Reserve: Updated feasibility reporting in December 2025 placed Havieron Ore Reserve at 38.5 Mt at 2.63 g/t Au and 0.33% Cu for 3.3 Moz Au and 129 kt Cu. Strike / vertical extent: Greatland describes the December 2023 MRE as contained within a compact 650 m strike length and defined over 1,400 vertical metres.

700

Rosebery Mine is a 100% MMG-owned underground polymetallic base metals operation on Tasmania’s west coast. Operating since 1936, it is one of Australia’s longest-running mines and produces zinc, lead and precious metals concentrates as well as gold doré. The mechanised underground operation reaches depths of more than 1.5 kilometres and supports more than 700 permanent employees and contractors. Ore is processed on site, with concentrates moved by rail to the Port of Burnie for shipment to Nyrstar smelters. MMG is advancing long-term tailings options and low-emission underground equipment to support Rosebery’s continued operating future. The underground mine reaches depths of more than 1.5 km from surface.

On-site crushing, grinding and flotation; rail to Burnie. Ore is hauled to surface for on-site processing. Parts of the plant are automated and can be controlled remotely. Concentrate is transported by rail to the Port of Burnie and shipped to Nyrstar smelters in Hobart and Port Pirie.

During the construction phase, the project was expected to create 5,500 direct jobs, with a workforce of approximately 1,600 people during the production phase.

Pascua-Lama is a bi-national mining project owned by Barrick Mining Corporation, with Wheaton Precious Metals Corp. also linked to the operation. It straddles the border of Chile's Atacama Region and Argentina's San Juan Province in the Andes mountains, at an altitude ranging from 3,800 to 5,200 metres. Construction of the large-scale open-pit operation began in October 2009 but was suspended in the fourth quarter of 2013 due to environmental issues, legal challenges, and cost overruns. The Chilean portion was definitively closed in September 2020, with a US$136 million closure plan submitted in January 2024. The Argentinian side, Lama, is under re-evaluation for a potential underground block-cave operation.

Initial production estimates for the first five years were between 800,000 and 850,000 ounces of gold and 35 million ounces of silver annually.

The processing plan involved crushing the ore in Chile and then transporting it via a 2.7-kilometre tunnel to a processing facility in Argentina. The plant was designed for a throughput of 45,000 tonnes per day and would use wet grinding, conventional flotation for copper concentrates, and cyanide leaching to produce gold and silver doré.

The planned equipment fleet included electric rope shovels, diesel hydraulic shovels, front-end loaders, and a fleet of 30 haul trucks with a 290-tonne capacity each, along with bulldozers, graders, and water trucks.

On the Argentinian side, known as Lama, Barrick is exploring the feasibility of a potential underground block-cave mining operation. This re-evaluation includes assessing the Penelope deposit's suitability for heap leaching at the nearby Veladero mine.

As of 2023, the mine employed an average of 3,102 workers, including contractors.

Zaldívar is an operating open-pit copper mine located in the Andean Precordillera of the Antofagasta Region, Chile, approximately 1,400 kilometres north of Santiago. It is a 50/50 joint venture between Antofagasta Plc and Barrick Gold Corporation, with Antofagasta acting as the operator.

Copper production was 40,500 tonnes in 2023 and 136,984 tonnes in 2009. For 2025, Antofagasta's attributable copper production was 36,700 tonnes, while Barrick Gold reported its 50% share as 37,000 tonnes.

The processing method involves a three-stage crushing process, followed by heap leaching with bacteriological agents to dissolve the copper. A solvent extraction and electrowinning (SX-EW) process is then used to produce high-purity copper cathodes. A small amount of copper concentrate is also produced via a flotation plant.

The mine's equipment includes a conventional truck and shovel fleet, a primary gyratory crusher, secondary cone crushers, water-flush tertiary crushers, and Alfa Laval plate heat exchangers for heat recovery in the electrowinning plant.

In May 2025, the Chilean Environmental Authority approved an Environmental Impact Assessment to extend the mine's life until 2051. This extension includes the development of the primary sulphide ore deposit, in addition to the currently mined secondary sulphides. The approved plan also facilitates a transition of the mine's water source.

The workforce consists of approximately 2,350 to 3,000 direct employees and several thousand contractors. The labour force is predominantly local, with 97 to 98 per cent of employees being Dominican nationals.

The Pueblo Viejo mine is a large, operating open-pit mine located in the Sánchez Ramírez Province of the Dominican Republic, approximately 100 kilometres northwest of the capital, Santo Domingo. The operation is a joint venture, operated by Pueblo Viejo Dominicana Corporation (PVDC), which is owned by Barrick Gold Corporation (60%) and Newmont Corporation (40%). Newmont acquired its interest through its 2019 acquisition of Goldcorp. The mine consists of two main pits, Moore and Monte Negro, and uses a conventional truck and shovel mining method.

First gold was produced in 2012, with commercial production beginning in 2013. In 2018, the mine produced 581,000 ounces of gold. Barrick reported its 60 per cent share of gold production for 2025 was 379,000 ounces.

Ore processing is complex due to its double refractory nature. The process involves crushing in a gyratory crusher, grinding in SAG and ball mills equipped with gearless mill drives, and then pressure oxidation of the whole ore in four large autoclaves at high temperature and pressure. This is followed by a carbon-in-leach (CIL) circuit that uses cyanide to recover the gold and silver, which is ultimately produced as a gold-silver doré bar.

The equipment fleet includes CAT 994 loaders, Hitachi 3600 hydraulic shovels, and CAT 789 rear-dump trucks.

A major plant expansion and mine life extension project is underway to sustain operations beyond 2040. This project aims to maintain an average annual production of more than 800,000 ounces of gold by increasing plant throughput to a planned capacity of about 14 million tonnes per annum. The expansion has an estimated capital cost of between US$2.1 billion and US$2.6 billion. A key component of the project is the construction of a new tailings storage facility, known as the Naranjo TSF, which has necessitated a community resettlement program managed through a Resettlement Action Plan.

The Connaught property is located approximately 65 km west of Dawson City. Hecla Mining Company acquired the Connaught project through its acquisition of ATAC Resources, a deal that was finalised in 2023. The project is considered to have potential for a high-grade silver-lead-zinc-copper-gold vein system, as well as copper-molybdenum porphyry targets.

Hecla Mining Company acquired the Connaught project through its acquisition of ATAC Resources, a deal that was finalised in 2023.

The Kinskuch property includes the past-producing Esperanza Mine (1911-1948), which produced 4,662 tonnes of ore with average grades of 983.9 g/t silver and 1.77 g/t gold. The property is considered prospective for silver, gold, and copper mineralisation and includes the underexplored Illiance trend.

Dolly Varden Silver Corp. acquired the Kinskuch property from Hecla Mining Company in May 2025, consolidating it into Dolly Varden's 77,000-hectare Kitsault Valley Project. Dolly Varden has commenced a fully-funded 35,000-metre diamond drilling program for its 2025 exploration season, with initial geological mapping and reconnaissance planned for Kinskuch to generate drill targets under a five-year Exploration Permit.

The Rock Creek project is an exploration-stage silver and copper project in Sanders County, Montana, acquired by Hecla Mining Company in June 2015. The project is currently in pre-development, with permitting activities on hold since February 2022 due to legal challenges. Hecla retains mineral rights. As of December 2025, inferred mineral resources include 148,291,000 ounces of silver and 656,060 tons of copper.

Production overview - 2025: silver 4613.06 t, copper 656060 t.

The Libby Exploration Project, also known as the Montanore project, is operated by Hecla Mining Company through its wholly-owned subsidiary, Montanore Minerals Corporation. Acquired in September 2016, the project is currently in the exploration and evaluation phase, involving dewatering and rehabilitation of an existing adit, and underground exploration to collect data for future mine feasibility. Legal challenges from environmental groups are ongoing, potentially affecting the project's timeline.

Hecla acquired the project, also known as the Montanore project, in September 2016. If the evaluation proves economically feasible, a new Plan of Operations for a full-scale mine would need to be submitted, which would trigger a new and separate permitting process.

The Rock Creek project is an underground silver and copper mine currently in a state of care and maintenance. Hecla Mining Company acquired the project in June 2015 through its acquisition of Revett Mining Company. While the project is under development, Hecla is not currently seeking permits for its construction. The company has previously withdrawn the Plan of Operations for Rock Creek from consideration by the United States Forest Service (USFS). Legal challenges have also impacted the project's progression, with a 2021 court ruling invalidating the USFS's approval of the mine's Phase I evaluation adit due to violations of the Endangered Species Act. As a result, the Rock Creek mine currently has no federal authorisation to proceed. In September 2022, RC Resources, a subsidiary of Hecla, requested that the Montana Department of Environmental Quality (DEQ) allow its Montana Pollutant Discharge Elimination System (MPDES) permit to expire, stating that none of the permitted outfalls had been constructed. Despite the current status, Hecla Mining continues to report inferred mineral resources for the project.

Production overview - 2025: silver 3245000 oz, copper 55738 t.

30-35 (for the exploration phase)

The Libby Exploration Project, also known as the Montanore project, is operated by Hecla Mining Company in Lincoln County, Montana. It is a stratabound sediment-hosted silver-copper deposit. In 2025, the U.S. Forest Service authorized underground exploration and evaluation activities to determine the economic value of the mineralization and inform future studies. The current plan involves dewatering and rehabilitating an existing adit, extending the tunnel, and constructing additional tunnels for exploration.

The current plan involves dewatering and rehabilitating an existing adit, extending the tunnel by 4,200 feet, and constructing additional tunnels for exploration.

Expected to employ 7,500 people during peak construction and create 4,000 long-term jobs during its operational life. Another source states over 10,000 people at peak construction and 6,400 employees and contractors during full production.

The reconstitution of the Reko Diq project was completed in December 2022. An updated feasibility study was completed in 2024. In April 2025, the joint venture shareholders approved the updated feasibility study and conditionally approved Phase 1 development capital. However, in February 2026, Barrick announced a review of all aspects of the project due to escalating security risks. Subsequently, in March and April 2026, Barrick stated it was necessary to slow development activity and extend the project review until mid-2027. The previously targeted first production by the end of 2028 is now likely to be impacted. The Environmental and Social Impact Assessment (ESIA) for the project was approved by relevant government authorities in early 2025.

The mine is expected to produce 200-250 kt of copper per year. Phase 1 is projected to produce an average of 200,000 tonnes of copper and 250,000 ounces of gold annually. The project is expected to yield 13.1 million tonnes of copper and 17.9 million ounces of gold over the life of the mine, based on existing reserves.

The project will be a truck-and-shovel open pit operation with processing facilities to produce a high-quality copper-gold concentrate. The development is planned in two phases. Phase 1 is planned to process 45 million tonnes of mill feed annually, with Phase 2 expected to double the processing capacity to 90 million tonnes per annum.

Fluor (lead EPCM partner), Metso, Weir, Komatsu

The development is planned in two phases. Phase 1 is planned to process 45 million tonnes of mill feed annually, with Phase 2 expected to double the processing capacity to 90 million tonnes per annum. A potential Phase 2 expansion is estimated to cost between $3.3 billion and $3.6 billion.

1300 (includes direct employees and third-party contractors)

Production overview - 2023: copper 32000 t; 2022: copper 68418 t.

The mine uses a conventional flotation process to produce copper concentrate. It also employs a paste backfill system. The processing plant uses 100 percent wastewater, and a Barrick-patented method that does not require cyanide, lime, or fresh water.

A new DD421-60C Jumbo was scheduled to be mobilised to the site in late Q3 2022. The operation uses surface loader remote activities utilising the RCT system.

An expansion has been developed for the Lode 1 orebody, which is located less than one kilometre from the existing lode. The extension development, including underground capital works and major upgrades to ventilation and paste plant facilities, was completed in 2024. Stoping at Lode 1 began in the third quarter of 2023. This expansion is expected to add 100,000 production tonnes per annum.

Approximately 7,000 employees

Nevada Gold Mines is a joint venture between Barrick Gold Corporation (61.5%) and Newmont Corporation (38.5%), which commenced operations on 1 July 2019. It is the single largest gold-producing complex in the world and is operated by Barrick. The assets include 10 underground and 12 open-pit mines, two autoclave facilities, two roasting facilities, four oxide mills, a flotation plant, and five heap leach facilities. The complex includes the operations of Carlin, Cortez, Turquoise Ridge, Phoenix, and Long Canyon. The Goldrush project is under development, with commercial production expected in 2026. The Robertson project has also received approval for development.

Production overview - 2021: gold 173067 oz, silver 1322700 oz, copper 36736179 lbs; 2019: gold 2200000 oz.

A variety of processing methods are used across the complex, including heap leaching for oxide ores, conventional milling and carbon-in-pulp for sulphide ores, and roasting for refractory ores. The facilities include two autoclave facilities, two roasting facilities, four oxide mills, and five heap leach facilities.

The operations utilise a range of modern mining equipment, including Sandvik electric haulage trucks and Epiroc Pit Viper 271 blast-hole drill rigs. Some underground equipment is operated remotely from the surface. A fleet of Liebherr trucks is in use at the Cortez mine.

The Goldrush project received its Record of Decision in December 2023, allowing for the commencement of surface infrastructure work. The mine is expected to create 500 jobs during construction and 570 during operations. The Robertson project received approval from the Bureau of Land Management in November 2024 for exploration and mining. The project is expected to have a life of about 12 years and will include three open pits.

The Connaught property is an early-stage exploration project located 65 km west of Dawson City, Yukon, with potential for copper-molybdenum +/- gold porphyry mineralisation and silver-lead-zinc-gold-copper epithermal veins.