London BTC Company Limited

07 October 2026

LONDON BTC COMPANY LIMITED

Nevada Gold - Teep Assays Return up to 104.99 g/t gold

Nine samples >10 g/t gold over 3.5 km of mineralised historical workings at the Teep

London, New York, 07 October 2026 - London BTC Company Limited (“Company”) (BTC: LSE, VINZF: OTCQB), the London Stock Exchange main market-listed company, is pleased to announce the latest gold and silver assay results from the current exploration programme at its Teep Gold-Silver Project (“Teep” or the “Project”) in the Tokop Mining District, Esmeralda County, Nevada.

Hewie Rattray, CEO of London BTC, states:

“These are encouraging results from our first systematic programme at Teep. Nine samples above 10 g/t gold, including one sample at 104.99 g/t, together with high-grade results from multiple areas across the sampled 3.5 km trend, strengthen our confidence in the exploration potential of the Project. With a further 2 km of the trend still to be sampled, multi-element results pending and Dahrouge undertaking its geological assessment, there is substantial work ahead to test the scale and continuity of this mineralised trend.”

Key Points

• Assays received for all 78 rock chip samples from the Teep maiden exploration programme, analysed by PhotonAssay™ at MSALABS. 37 samples returned >0.5 g/t Au, including nine samples >10 g/t Au.
• Highlights (>10 g/t Au “Gold”) include:
  • TPRK063, 104.99 g/t gold (Au) or 3.38 ounces of gold per tonne,
  • TPRK042, 80.41 g/t Au,
  • TPRK052, 73.36 g/t Au,
  • TPRK040, 68.97 g/t Au,
  • TPRK041, 41.07 g/t Au,
  • TPRK059, 24.51 g/t Au,
  • TPRK043, 23.84 g/t Au,
  • TPRK020, 12.42 g/t Au,
  • TPRK036, 10.64 g/t Au,
• 104.99 g/t Au is the highest grade recorded at Teep to date, since the Company first started staking this Project, exceeding the previous high of 40.56 g/t Au (fire assay) from the initial sampling program at the Eastern Vein Network.
• Meaningful Au potential indicated from all historical workings sampledacross 3.5 km, Samples testing the strike extent of the Eastern system determine Au mineralisation over 750m strike, supporting the interpretation of a mineralised trend extending across the Project.
• Multi-element results, including antimony and tungsten are pending.
• Highlights (>10 g/t Ag “Silver”) include:
  • TPRK063, 456.2 g/t silver (Ag)or 14.67 ounces of silver per tonne
  • TPRK059, 212.3 g/t Ag
  • TPRK043, 231.4 g/t Ag
  • TPRK020, 234.2 g/t Ag
  • TPRK036, 86.1 g/t Ag
• 206 further samples are with the laboratory from the Company’s other Nevada projects, including Huntington-Whitman (85 samples), Black Star (69 samples) and Amonett-Frank (52 samples).
• Geological assessment by Dahrouge Geological Consulting to assess the economic potential of the Project, this will include covering the unsampled 2 km of the Teep trend.
• Project generation continues with due diligence and staking progressing over the Company's pipeline of new gold, silver, antimony and tungsten targets across Nevada, Arizona and Texas.

David Lenigas, London BTC Company's Chairman, comments:

“The work completed to date indicates that Teep has the potential to be a meaningful gold project for the Company portfolio. We staked it on the strength of a few high-grade samples from a single network, and our first systematic programme has now returned high-grade gold from every cluster of historical workings we sampled, over 3.5 km of the trend. That includes a sample with over 100 grams per tonne gold from a mine that did not appear on any historical record.

These results validate our decision to secure Teep, and they show the gold potential here extends beyond where we started. With 2 km of the trend still to be sampled, multi-element results to come and a further 206 samples from Black Star, Amonett-Frank and Huntington-Whitman in the lab”

Figure 1: Teep Project, 2026 rock chip assay results (≥1 g/t Au) over historical workings

Teep Exploration Programme

The Teep Project comprises 106 unpatented mineral claims covering 2,190 acres (8.86 km²) within the Walker Lane Trend of southern Nevada. The Project was staked over historical workings developed on stockwork and tabular quartz-vein networks hosted in the Sylvania Pluton quartz monzonite. The current understanding of geology and geochemistry points to a potential porphyry-driven hydrothermal system. Historical workings define 12 areas of interest over a 5.5 km trend, the majority of which had not been sampled prior to this programme.

The maiden exploration programme collected 78 rock chip samples from historical workings and outcrop over 3.5 km of the 5.5 km trend, testing the north-northeast striking quartz veins, the historical workings developed on them, and quartz breccia zones. The programme also identified a previously unrecorded small-scale historical mine with multiple shafts. All 78 samples have now been assayed for gold and silver.

The results show gold mineralisation in all five of the clusters of historical workings, from the Eastern Vein Network, the source of the Company’s previous high-grade due diligence results, to the Central Veins 3.5 km to the west. Of the 78 samples, 37 returned greater than 0.5 g/t Au. This supports the Company’s interpretation of a mineralised trend extending across the Project rather than a single high-grade occurrence. The economic and exploration potential of the Teep project will be assessed by Dahrouge Geological consulting through geological mapping, technical assessment and further samples on the unsampled 2 km trend.

Assay Programme

Rock chip samples of approximately 0.4 kg to 2.0 kg were collected by a qualified geologist from historical workings, mine waste and outcrop across each cluster. Sample locations were recorded by handheld GPS (WGS84) at each site, with each sample assigned coordinates.

Samples were submitted to MSALABS in Elko, Nevada, where they were dried, crushed and split into 500 g jars for Chrysos PhotonAssay™ (method CPA-AuAg2). Detection limits are 0.017 g/t Au and 3.7 g/t Ag. Laboratory quality control comprised blanks and certified reference materials inserted by MSALABS, which returned results within expected ranges.

Element interference from some samples resulted in the lab using a separate gold assay energy source; however, this results in the loss of silver data for selected samples. Any sample which has held interference is reported as ‘n.r.’ (not recorded).

Locality	Samples	No.	>0.5 g/t Au	>10 g/t Au	Max Au (g/t)	Max Ag (g/t)
Eastern Vein Network	TPRK001-021	21	11	1	12.42	234.2
750 m Strike Extension	TPRK022-034	13	2	0	2.81	254.8
Northern Veins	TPRK035-048	14	9	5	80.41	464.8
Unrecorded Mine	TPRK049-067	19	9	3	104.99	456.2
Central Veins	TPRK068-078	11	6	0	6.77	14.7

Table 1: Summary of Teep rock chip assay results by locality, September 2026

Locality	Sample	Au (g/t)	Ag (g/t)
Unrecorded Mine	TPRK063	104.99	456.2
Northern Veins	TPRK042	80.41	n.r.
Unrecorded Mine	TPRK052	73.36	n.r.
Northern Veins	TPRK040	68.97	n.r.
Northern Veins	TPRK041	41.07	n.r.
Unrecorded Mine	TPRK059	24.51	212.3
Northern Veins	TPRK043	23.84	231.4
Eastern Vein Network	TPRK020	12.42	234.2
Northern Veins	TPRK036	10.64	86.1
Northern Veins	TPRK048	7.59	464.8
Eastern Vein Network	TPRK015	7.18	215.9
Central Veins	TPRK075	6.77	5.6
Unrecorded Mine	TPRK061	6.22	16.1
Central Veins	TPRK078	6.11	8.8
Unrecorded Mine	TPRK056	5.02	13.3
Central Veins	TPRK077	4.96	13.7
Central Veins	TPRK076	4.71	11.9
Eastern Vein Network	TPRK017	3.89	116.7
Central Veins	TPRK074	3.47	14.7
Northern Veins	TPRK046	3.32	99.5
Northern Veins	TPRK047	3.20	231.0
Central Veins	TPRK073	3.10	9.9
750 m Strike Extension	TPRK025	2.81	254.8
Unrecorded Mine	TPRK067	2.55	n.r.
Eastern Vein Network	TPRK011	2.44	57.3
Eastern Vein Network	TPRK013	2.05	72.4
Unrecorded Mine	TPRK054	1.79	26.3
Unrecorded Mine	TPRK057	1.69	12.4
Eastern Vein Network	TPRK014	1.56	31.7
750 m Strike Extension	TPRK031	1.44	41.5
Northern Veins	TPRK038	1.43	19.3
Eastern Vein Network	TPRK012	1.22	142.4
Eastern Vein Network	TPRK006	1.00	32.2
Eastern Vein Network	TPRK018	0.90	38.7
Eastern Vein Network	TPRK019	0.81	34.9
Eastern Vein Network	TPRK016	0.54	63.0
Unrecorded Mine	TPRK060	0.51	<3.7

Table 2: Teep rock chip results greater than 0.5 g/t Au by locality, September 2026

Previous Due Diligence Results

Due diligence sampling by Schiehallion Consulting in May 2026 comprised 16 rock chip samples, submitted for PhotonAssay™ at MSALABS, with QAQC by fire assay. Highlights are below.

Project	Sample	Au (g/t)	Ag (g/t)
Teep	BTCRK008	40.56*	730.8
Teep	BTCRK005	31.40*	1,332.5
Teep	BTCRK010	16.36	1,292.1
Teep	BTCRK009	7.89*	403.2
Teep	BTCRK011	4.78	159.1
Teep	BTCRK002	2.74	83.0

Table 3: Previous Teep rock chips, May 2026 (see RNS titled ‘37 g/t Gold and 1,332 g/t Silver inNevada’)

*Fire assay QAQC result (see RNS titled ‘Outstanding Gold Assays Return up to 143.1 g/t inNevada USA’)

Figure 2: Teep Project regional setting, Walker Lane Trend, Esmeralda County, Nevada

Portfolio Update

Field programmes have now been completed across the Company’s four existing Nevada projects. In addition to Teep, a further 206 rock chip samples have been submitted to MSALABS for gold and silver by PhotonAssay™, followed by multi-element analysis including antimony and tungsten:

•Huntington-Whitman: 85 samples

•Black Star: 69 samples

•Amonett-Frank: 52 samples

All results will be released once received, subject to QAQC and Competent Person review.

Next Steps

•Reporting of multi-element results from Teep, including antimony, tungsten and porphyry pathfinder elements (Cu, Pb, Zn, Mo and Ba).

•Reporting of gold and silver PhotonAssay™ results from Huntington-Whitman, Black Star and Amonett-Frank, followed by multi-element results.

•Geological assessment by Dahrouge Geological Consulting, covering structural setting, alteration and controls on mineralisation at Teep, including the remaining 2 km of the trend still to be sampled.

•Continued due diligence and staking over the Company's pipeline of new gold, silver, antimony and tungsten targets across Nevada, Arizona and Texas.

Programme Timetable

Indicative programme timetable, Phase Two, August to December 2026

Note: All dates in this announcement are indicative and remain subject to weather, land access, laboratory turnaround and contractor availability.

Figure 3: London BTC Company existing gold-silver project portfolio, US State of Nevada

This announcement contains information which, prior to its disclosure, was inside information as stipulated under Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310 (as amended).

For further information please contact:

London BTC Company Limited	Hewie Rattray, CEO hewie@ldnbtc.com David Lenigas, david@ldnbtc.com Rob Scott, Finance Director, rob@ldnbtc.com Jeremy Edelman, jeremy@ldnbtc.com
First Sentinel (Corporate Adviser)	Brian Stockbridge / Gabrielle Cordeiro / Ahmed Iqbal brian@first-sentinel.com gabrielle@first-sentinel.com ahmed.iqbal@first-sentinel.com T: +44 (0) 20 3855 5551
Clear Capital Markets (Broker)	Bob Roberts bobroberts@clear-cm.co.uk T: +44 (0) 20 3869 6080
Marex Financial (Joint Broker and Advisor)	Angelo Sofocleous / Matt Bailey (Broking) Email: corporate@marex.com 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. There is no assurance that mineralisation encountered at Teep will be comparable in scale, grade, or economic characteristics to other deposits in the district. 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 mineralised structure or zone.

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

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