Nevada Assays Return up to 43.38 g/t Gold

RNS Number : 2903B

London BTC Company Limited

02 November 2026

 

LONDON BTC COMPANY LIMITED

Nevada Assays Return up to 43.38 g/t Gold at Black Star

London, New York, 02 November 2026 - London BTC Company Limited (“Company”) (BTC: LSE, VINZF: OTCQB), the London Stock Exchange main market-listed company, is pleased to announce the latest set of gold and silver assay results from the Company's recently staked Black Star Gold-Silver Project (“Black Star” or the “Project”) in Pershing County, Nevada.

Hewie Rattray, CEO of London BTC, states:

“These are highly encouraging early results for our recently staked Black Star Project. To return gold grades at surface as high as 43.38 g/t from our latest on-ground program, with four samples above 10 g/t and high-grade results at both ends of a 2.5km target corridor is impressive. Silver grades up to 55 g/t are also encouraging to see.

We are still waiting on the copper and antimony assay results, and our hope is that we may see some additional economic potential with these commodities as well.

Our US geological consultants - Dahrouge - are already on the ground undertaking follow-up systematic mapping and sampling and we aim to report further finding from Black Star in the coming weeks to months."

Key Points

• Assays received for all 69 rock chip samples from the Black Star maiden exploration programme, analysed by PhotonAssay™ at MSALABS. 20 samples returned >0.5 g/t Au, including four samples >10 g/t Au.

• Highlights include:

• BTCRK1036, 43.38 g/t gold (Au) or 1.39 ounces of gold per tonne,

• BTCRK1038, 19.19 g/t Au,

• BTCRK1012, 18.70 g/t Au,

• BTCRK1004, 11.73 g/t Au,

• BTCRK1034, 8.55 g/t Au,

• BTCRK1037, 7.73 g/t Au,

• BTCRK1033, 7.38 g/t Au,

• High-grade gold at both ends of the 2.5 km corridor. At the Western Target, 8 samples (BTCRK1031 to BTCRK1038) returned >1 g/t Au over a 100 m trend of workings. At the Eastern Target, Insitu gold-bearing quartz was returned over a 350 m trend.

• Antimony and copper assay results are pending from multi-element analysis.

• 328 further samples are pending across the Company's existing US projects.

• Dahrouge Geological Consulting has mobilised to Black Star and is on the ground, commencing systematic geological mapping and rock chip sampling to validate and extend the high-grade results at both targets.

Figure 1: Black Star Project, 2026 rock chip assay results (PhotonAssay™)

Black Star Exploration Programme

The Black Star Project comprises 36 unpatented mineral claims covering 744 acres (3 km²) in the Trengo District of Pershing County, northern Nevada. The Project covers a contact between metavolcanic rocks and granodiorite, targeted historically by shafts, adits and prospect pits developed on quartz veins, with limited follow-up exploration since the 1980s. Previous due diligence sampling defined two high-grade gold-silver target areas, the Western and Eastern targets, separated by 2.5 km of underexplored ground.

This maiden exploration programme was completed late September 2026, with 69 rock chip samples collected from historical workings, mine tailings, and sub crop along the corridor between the two targets (as per the announcement released on 5 October 2026):

• Eastern Target: 28 samples from historical pits and quartz and quartz-calcite veins, including a 20 m wide zone of quartz veining within the host rock.

• South-East: 3 samples from historical costeans exposing iron-oxide and manganese-altered skarn-type material, and a nearby quartz vein.

• Corridor: 15 samples from sub cropping quartz veins with iron-oxide and goethite veining, several with trace malachite, between the two targets.

• Western Target: 23 samples from tailings at historical shafts and shallow pits and from surrounding quartz veins, including samples with visible chalcopyrite and malachite.

All 69 samples were submitted to MSALABS in Elko, Nevada, and gold and silver results have now been received for the full programme.

Black Star Assay Results

Rock chip samples were collected by a qualified geologist from historical workings, mine tailings, and sub crop. Sample locations were recorded by handheld GPS at each site, with each sample assigned coordinates (WGS84, converted to NAD83 UTM Zone 11N).

Samples were submitted to MSALABS in Elko, Nevada, where they were dried, crushed and split into 500 g jars for Chrysos PhotonAssay™ (method CPA-AgAu1, report ELK2611055). Detection limits are 0.03 g/t Au and 1.5 g/t Ag. Results below the detection limit are reported as less than the detection limit.

Laboratory quality control comprised blanks and certified reference materials inserted by MSALABS, which returned results within expected ranges.

Of the 69 samples, 20 returned greater than 0.5 g/t Au, 13 returned greater than 1 g/t Au and four returned greater than 10 g/t Au.

Target	Sample	Au (g/t)	Ag (g/t)
Western	BTCRK1036	43.38	45.0
Western	BTCRK1038	19.19	4.2
Eastern	BTCRK1012	18.70	2.3
Eastern	BTCRK1004	11.73	9.2
Western	BTCRK1034	8.55	20.8
Western	BTCRK1037	7.73	<1.5
Western	BTCRK1033	7.38	27.5
Eastern	BTCRK1014	4.48	33.6
Western	BTCRK1035	2.85	3.7
Western	BTCRK1066	2.47	2.5
Western	BTCRK1031	1.69	<1.5
Western	BTCRK1032	1.17	2.9
Eastern	BTCRK1006	1.10	10.1

Table 1: Black Star rock chip results greater than 1 g/t Au, maiden exploration programme, September 2026

Western Target: The Western Target returned the strongest results of the programme, with 12 of 23 samples returning greater than 0.5 g/t Au. A southern group of workings, 100 m south of the shafts that returned up to 16.23 g/t Au during due diligence (BTCRK107 to BTCRK111), returned eight consecutive samples above 1 g/t Au (BTCRK1031 to BTCRK1038). The gold-bearing samples comprise strongly iron-oxide-altered quartz, locally with goethite, chalcedony, malachite and chalcopyrite.

Eastern Target: Sampling of the zone that returned 8.26 g/t Au during due diligence (BTCRK100) returned 11.73 g/t Au (BTCRK1004), confirming high-grade gold within this area. Quartz veining 200 m to the east returned 18.70 g/t Au (BTCRK1012), and quartz veining a further 145 m east returned 4.48 g/t Au (BTCRK1014), indicating gold-bearing quartz over a 350m trend.

Corridor and South-East: Gold was detected in 9 of the 15 corridor samples, with results up to 0.80 g/t Au (BTCRK1054).

 

Target	Sample	Programme	Easting	Northing	Au (g/t)	Ag (g/t)
Western	BTCRK1036	Maiden	328537	4515769	43.38	45.0
Western	BTCRK1038	Maiden	328544	4515764	19.19	4.2
Eastern	BTCRK1012	Maiden	330953	4516944	18.70	2.3
Western	BTCRK110	Due diligence	328507	4515879	16.23	49.0
Western	BTCRK109	Due diligence	328506	4515879	14.39	35.4
Eastern	BTCRK1004	Maiden	330755	4516974	11.73	9.2
Western	BTCRK107	Due diligence	328491	4515875	10.13	33.0
Western	BTCRK1034	Maiden	328496	4515780	8.55	20.8
Eastern	BTCRK100	Due diligence	330753	4516982	8.26	50.5
Western	BTCRK111	Due diligence	328507	4515879	8.17	7.9
Western	BTCRK1037	Maiden	328546	4515762	7.73	<1.5
Western	BTCRK1033	Maiden	328496	4515780	7.38	27.5
Eastern	BTCRK1014	Maiden	331098	4516937	4.48	33.6
Western	BTCRK108	Due diligence	328502	4515877	3.76	14.5
Western	BTCRK1035	Maiden	328541	4515770	2.85	3.7
Western	BTCRK1066	Maiden	328546	4515879	2.47	2.5
Eastern	BTCRK103	Due diligence	330753	4516967	2.16	22.8
Western	BTCRK1031	Maiden	328488	4515777	1.69	<1.5
Western	BTCRK112	Due diligence	328530	4515862	1.69	6.3
Eastern	BTCRK099	Due diligence	330751	4517021	1.53	<3.7
Western	BTCRK1032	Maiden	328496	4515779	1.17	2.9
Eastern	BTCRK1006	Maiden	330755	4516968	1.10	10.1

Table 2: All Black Star rock chip results greater than 1 g/t Au

Multi-element Results Pending

All 69 samples will undergo sodium peroxide fusion and 4-acid digest with ICP-MS/OES finish for full multi-element geochemistry, with over-limit samples to be re-analysed by ore-grade methods. These results will be reported once received, subject to QAQC and Competent Person review.

Dahrouge Mobilised to Black Star

Dahrouge Geological Consulting (“Dahrouge”) has mobilised to Black Star following completion of its field programme at Teep, with field work commencing on 29 October 2026 and scheduled to run into early November. The programme comprises:

• Review and compilation of available geological and geophysical data to generate targets for the field programme.

• Systematic geological mapping to establish geological control across the Project.

• Revisiting the Company's high-grade sample locations at the Western and Eastern targets, with rock chip sampling to extend these results and assess the continuity of mineralisation.

• GIS compilation, validation of analytical results and a field summary report and technical assessment for the Project.

The assay results in this announcement will be used to direct the mapping.

Next Steps

• Reporting of multi-element results from Black Star, including antimony and copper.

• Completion of Dahrouge's mapping and sampling at Black Star, followed by field summary reports and technical assessments for Black Star and Teep.

 

Figure 2: London BTC Company existing gold-silver project portfolio, US State of Nevada

 

For further information please contact:

London BTC Company Limited	Hewie Rattray, CEO [email protected] David Lenigas, [email protected] Rob Scott, Finance Director, [email protected] Jeremy Edelman, [email protected]
First Sentinel (Corporate Adviser)	Brian Stockbridge / Gabrielle Cordeiro / Ahmed Iqbal [email protected] [email protected] [email protected] T: +44 (0) 20 3855 5551
Clear Capital Markets (Broker)	Bob Roberts [email protected] T: +44 (0) 20 3869 6080
Marex Financial (Joint Broker and Adviser)	Angelo Sofocleous / Matt Bailey (Broking) Email: [email protected] T: +44 (0) 207 655 6000

 

About London BTC Company Limited

The Company's primary listing is on the London Stock Exchange (United Kingdom) under the ticker "BTC.L" and it trades in the USA on the OTCQB under the ticker "VINZF". The Company is building up a strategic Bitcoin holding through acquiring Bitcoin as a treasury and currency management tool and through adding Bitcoin generated from its mining operations in North America. The Company currently operates Bitcoin miners hosted across multiple third-party facilities in Indiana, Iowa, Nebraska and Texas (USA) and Labrador (Canada). As part of its hedging strategy, the Company has begun building a portfolio of US gold assets in the Tier 1 gold jurisdiction of Nevada, to complement its core Bitcoin treasury and mining operations, thereby providing shareholders with exposure to two scarce and globally recognised stores of value.

Cautionary Statement

This announcement contains references to historical production sourced from third-party reports, public databases, technical literature and government reports. These historical results have not been verified by the Company, are not reported in compliance with any current Mineral Resource or Ore Reserve code and should not be relied upon as indicative of the prospectivity of the Project or any future resource, reserve or production from the Project. While the alteration and mineralisation styles observed to date show similarities to systems in the region, this comparison is conceptual only. All of the samples discussed in this release are selective in nature with a high potential for bias and should not be considered as being representative of the overall mineralisation. While the alteration, mineralisation styles and metal associations observed to date show similarities to systems in the region and elsewhere, all such comparisons are conceptual only.

Competent Person's Statement

The information in this report that relates to exploration results and technical information is based on information compiled by Fionnlagh (Finn) Hunter, Principal Geological Consultant at Schiehallion Consulting, who is a Member of the Australasian Institute of Mining and Metallurgy (AusIMM) and has sufficient experience of relevance to the styles of mineralisation and the types of deposits under consideration, and to the activities undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Hunter consents to the inclusion in this report of the matters based on the information in the form and context in which it appears.

The directors of London BTC Company Limited accept responsibility for this announcement.

References

U.S. Geological Survey. Mineral Commodity Summaries 2025. Reston, VA: U.S. Department of the Interior, 2025.London BTC Company Limited, “37 g/t Gold and 1,332 g/t Silver in Nevada”, RNS, 18 June 2026, London Stock Exchange.London BTC Company Limited, “Gold Discovery in Nevada, USA”, RNS, 15 July 2026, London Stock Exchange.London BTC Company Limited, “Gold Assays Return up to 143.1 g/t in Nevada USA”, RNS, 5 August 2026, London Stock Exchange.London BTC Company Limited, “USA Antimony and Copper Potential Identified at Black Star, Nevada”, RNS, 5 October 2026, London Stock Exchange.London BTC Company Limited, “Nevada Gold - Teep Assays Return up to 104.99 g/t gold”, RNS, 7 October 2026, London Stock Exchange.

 

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