Summary

Mine Type	Underground
Study Completed	Preliminary Economic Assessment
Stage	Permitting
Commodities	Gold
Mining Method	Sub-level open stoping (SLOS) Overhand Cut & Fill
Backfill type	...
Mine Life	...
Snapshot	Salave project is an underground mining operation with a 14-year mine life plus two years of pre-production development and concurrent closure. Environmental baselining work continues, and an initial Environmental Impact Assessment to meet Spanish requirements has been submitted for consideration by relevant authorities. Additionally, BDG recently submitted an application to the Government of Asturias for Salave to be approved as a Strategic Project through the newly promulgated Asturian law on Strategic Investments. The Project has been independently assessed to meet all key criteria of the new law. A substantial inventory of predominantly Indicated category resources has already been estimated. In the context of this it is considered the project is ready for commencement of pre-feasibility level studies as part of an indicative milestone schedule. The Study shows that about 74% of the 2025 Mineral Resource is mineable by underground methods.

Deposit type

• Vein / narrow vein
• Intrusion related

Summary:

The Salave gold deposit is located within the West Asturian–Leonese Zone (WALZ) of the northwestern portion of the Iberian Massif. The Salave concessions are situated at the eastern border of the Mondoñedo nappe within the WALZ, which is separated from a less deformed area to the east by the basal thrust of the nappe – the Mondoñedo thrust.

West of the Mondoñedo thrust, and within the Salave property, the area is underlain by quartzite, sandstone, argillite, shale, and greywacke of the Cambro-Ordovician Los Cabos Series that have been metamorphosed to slate, arenite, quartzite, and graphitic slates. The Mondoñedo t hrust places the Upper Cambrian Los Cabos Series over the Upper Ordovician Agüeira Formation.

The Salave deposit is underlain by granodiorite, which is a small part of the Porcia Intrusive Complex that extends approximately 4km, from Rio Porcia to Represas Playa just east of Tapia. The granodiorite crops out in the western part of the complex. To the south, the Complex is covered by thin Quaternary alluvium. Igneous rocks in the Salave area are directly related to the mineralisation and comprise several stocks and dykes whose ages range from 330Ma to 287Ma (Carboniferous). Oxidation is not intensive and extends for a few metres below the surface except along larger faults and structural zones where it can locally exceed 200m vertically.

The deposit is hosted mainly by the strongly altered Salave granodiorite at its western boundary, close to the contact with the Los Cabos sedimentary sequence.

Gold mineralisation occurs in a series of stacked, north- to northwest trending, shallowly southwest dipping irregular lenses related to faults and fracture zones that are parallel to the contact of the intrusive and metasedimentary rocks. The faults and fracture zones appear to be related to one or more vertical structures some of which contain high-grade gold mineralisation.

These structures may play an important role as conduits and opening shallow dipping structures with subsequent deposition of hydrothermal solutions, particularly at the contact with the metasediments.

Dimensions
The strike length of the mineralised zone is about 780 m. Width is up to 500 m, plunging about 15° to the northwest, traced down dip to 420 m. A core zone exists in the west, of closer spaced drilling, with two higher grade zones delineated.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Commodity Production

Operational metrics

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Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Aug 19, 2025