New VMS Licence Award at Rulikha Deposit

RNS Number : 1050E

East Star Resources PLC

21 October 2025

East Star Resources Plc

("East Star" or the "Company")

New VMS Licence Award at Rulikha Deposit

East Star Resources Plc (LSE:EST), which is exploring for copper and gold in Kazakhstan, is pleased to announce it has been awarded a new exploration licence - 3631-EL (the "Licence"), encompassing the remaining part of the induced-polarisation (IP) anomaly north of the Rulikha Deposit.

With the entire IP anomaly at Rulikha now under 100% ownership by East Star, execution of the next phase of exploration can begin. Additional historical drilling within the newly awarded Licence has also been included in East Star's ongoing assessment of both the Rulikha Deposit and its geological interpretation of the Rulikha IP anomaly. Some highlighted intersections from the historic drilling are below.

Highlights of Historical Intersections Within New Licence:

· 11.4m @ 9.8% Zn, 3.1% Cu and 1.1% Pb from 196.6m

· 6.9m @ 17.6% Zn, 1.0% Cu and 3.3% Pb from 237.4m

· 11.2m @ 5.5% Zn, 0.32% Cu and 1.2% Pb from 236.0m

· 8.7m @ 5.4% Zn, 0.3% Cu and 0.3% Pb from 256.2m

180 historical drill holes are currently being modelled to provide an Exploration Target and assess the Reasonable Prospects for Economic Extraction (RPEE).

Alex Walker, East Star CEO, commented:

"East Star is expanding its VMS opportunities through this additional highly prospective exploration licence, adding a second soviet-era deposit to our East Region assets. Although permitting is expected to be more arduous due to proximity to a settlement, at less than 2km from an existing rail line and 11km from an underfed mill, we are eager to assess the potential economic viability of this deposit, in a region which has been mined since the mid-1700s.

In remodelling such detailed historical data, East Star will be able to assess the reasonable prospects for economic extraction prior to on the ground exploration and therefore, like Verkhuba, we will undertake a low-cost exploration campaign to verify the data and convert the exploration target to a JORC Resource.

We are grateful for the support from the Shemonaikha District in allowing us to apply for the Licence and we look forward to updating the market on future exploration activities."

Further Information

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Figure 1: Highlighted historical drill intersections in the newly awarded licence area as well as the complete East Star IP anomaly

History of the Rulikha Deposit

The Rulikha Deposit and geophysical targets are situated about 33km northwest from East Star's 100% owned Verkhuba Deposit (JORC MRE of 20.3Mt @ 1.16% copper, 1.54% zinc and 0.27% lead). Located within the Rulikhinskoe-Vydrikhinskoe Ore Field in the Shemonaikha District of East Kazakhstan, the Rulikha Deposit is a VMS polymetallic deposit primarily explored for zinc, copper and lead. The Rulikha Deposit was part of a broader geological exploration effort in the region, conducted by the East Kazakhstan Geological Exploration Expedition under the Ministry of Geology of the USSR and later the Republic of Kazakhstan.

The Rulikha Deposit was discovered in the 1940s and delineated during exploration up to the 1980s, followed by detailed prospecting from 1989-1992. The major historical work programmes included:

· 1940-1950s: Early prospecting by the Shemonaikha Party of the Altai Exploration Group identified polymetallic mineralisation. A consolidated report in 1957 (Utrobin et al.) calculated GKZ resources for the Rulikhinskoye (Rulikha) deposit.

· 1960s-1970s: Geological and geophysical work by the Shemonaikha Geological Reconnaissance Party (GRP) and Priirtyshskaya Party refined the geological structure and mineralisation of the deposit.

· 1978-1983: Detailed prospecting by the Minsk and Ubin GRPs of the Shemonaikha GRP targeted the Rulikhinsko-Vydrikhinsky and Talovsko-Rulevsky areas, further delineating mineralisation.

· 1989-1992: Deep exploration drilling to assess the mineralisation potential of deeper units (up to 1000-1200m).

Based on the historical reports, it seems that no further exploration was undertaken since 1992. The last significant exploration programme in 1989-1992 included significant drilling and sampling efforts:

· Total Drilling - 6,785 linear metres of core drilling across 12 exploration boreholes. Drilling grid for Rulikha Deposit: 200 x 100m for C2 category resources (GKZ resource categorisation not typically used in modern resource estimates), 400 x 100m or 300 x 200m for P1 category.

· Geochemical Sampling - 737 geochemical samples collected.

· Geophysical Logging: - 6,607 linear metres of gamma logging.

The results of the historical exploration found that the Rulikha Deposit hosts VMS-polymetallic mineralisation, primarily copper, zinc and lead, with minor gold and silver. Mineralisation is localised in tuffs, volcanic sediments and extrusive units from the Middle-Upper Devonian boundary. Mineralisation is associated with vein-type and stratiform ore lenses. Metallurgical or processing test work for the Rulikha Deposit has not been completed to date.

Contacts:

East Star Resources Plc

Alex Walker, Chief Executive Officer

Tel: +44 (0)20 7390 0234 (via Vigo Consulting)

SI Capital (Corporate Broker)

Nick Emerson

Tel: +44 (0)1483 413 500

Vigo Consulting (Investor Relations)

Ben Simons / Peter Jacob / Anna Stacey

Tel: +44 (0)20 7390 0234

About East Star Resources Plc

East Star Resources is focused on the discovery and development of copper and gold in Kazakhstan. East Star's management are based permanently on the ground, supported by local expertise. The Company is pursuing multiple exploration strategies:

· Volcanogenic massive sulphide (VMS) exploration, which to date includes a deposit with a maiden JORC MRE of 20.3Mt @ 1.16% copper, 1.54% zinc and 0.27% lead, in an infrastructure-rich region, amenable to a low capex development

A map of a city AI-generated content may be incorrect.

· Copper porphyry and epithermal gold exploration, with multiple opportunities for Tier 1 deposits, initially supported by an initial US$500k grant from BHP Xplor in 2024

Visit our website:

www.eaststarplc.com

LinkedIn: https://www.linkedin.com/company/east-star-resources/

X: https://x.com/EastStar_PLC

Subscribe to our email alert service to be notified whenever East Star releases news:

www.eaststarplc.com/newsalerts

The person who arranged for the release of this announcement was Alex Walker, CEO of the Company.

This announcement contains inside information for the purposes of Article 7 of Regulation 2014/596/EU which is part of domestic UK law pursuant to the Market Abuse (Amendment) (EU Exit) Regulations (SI 2019/310) ("UK MAR"). Upon the publication of this announcement, this inside information (as defined in UK MAR) is now considered to be in the public domain.

Competent Person Statement

Scientific or technical information in this disclosure related to exploration was reviewed by Dr Tremain Woods, a full-time employee of Discovery Ventures Kazakhstan Ltd, a 100% owned subsidiary of East Star Resources PLC. Dr Woods is a member in good standing with the Geological Society of South Africa. He has sufficient experience that is relevant to the commodity, style of mineralisation or type of deposit under consideration and activity which he is undertaking to qualify as a Competent Person under the JORC code (2012 Edition).

Table 1 - Significant Historical Drill Results

Hole_ID	NAT_East	NAT_North	NAT_RL	NAT_Azi	Dip	Hole_Depth	Depth_From	Depth_To	mWidth	InterceptDescriptionCoElements	Lease_ID
RU_DH_10	571193	5596053	518	107	-70	176.4	56.9	58.23	1.33	1.33m @ 2.55 % Zn; 0.02 % Cu; 0.02 % Pb	3631-EL
RU_DH_102	570522	5593550	378	0	-90	238.9	192.6	194	1.4	1.40m @ 1.78 % Zn; 0.21 % Cu; 0.26 % Pb	3631-EL
RU_DH_104	570595	5593548	379	0	-90	233.2	196.63	208	11.37	11.37m @ 9.79 % Zn; 3.13 % Cu; 1.12 % Pb	3631-EL
RU_DH_106	570687	5593501	385	0	-90	256.45	237.45	244.4	6.95	6.95m @ 17.56 % Zn; 1.02 % Cu; 3.31 % Pb	3631-EL
RU_DH_106	570687	5593501	385	0	-90	256.45	247.65	248.65	1	1.00m @ 1.59 % Zn; 0.20 % Cu; 0.35 % Pb	3631-EL
RU_DH_109	570735	5593472	387	0	-90	250.7	238.7	241.5	2.8	2.80m @ 6.52 % Zn; 0.39 % Cu; 2.39 % Pb	3631-EL
RU_DH_11	570485	5593956	399	303	-90	220.95	32	37	5	5.00m @ 2.05 % Zn; 0.08 % Cu; 0.00 % Pb	3631-EL
RU_DH_11	570485	5593956	399	303	-90	220.95	64	65.9	1.9	1.90m @ 4.78 % Zn; 0.05 % Cu; 0.00 % Pb	3631-EL
RU_DH_111	570592	5593402	376	0	-90	280.25	241.7	246.6	4.9	4.90m @ 1.12 % Zn; 0.06 % Cu; 0.20 % Pb	3631-EL
RU_DH_111	570592	5593402	376	0	-90	280.25	257.35	261.7	4.35	4.35m @ 2.08 % Zn; 0.18 % Cu; 0.32 % Pb	3631-EL
RU_DH_111	570592	5593402	376	0	-90	280.25	264.6	266.45	1.85	1.85m @ 3.10 % Zn; 0.25 % Cu; 0.08 % Pb	3631-EL
RU_DH_112	570650	5593389	379	0	-90	282	250.55	256.1	5.55	5.55m @ 6.61 % Zn; 0.45 % Cu; 0.15 % Pb	3631-EL
RU_DH_112	570650	5593389	379	0	-90	282	259.1	262.75	3.65	3.65m @ 4.89 % Zn; 0.31 % Cu; 0.08 % Pb	3631-EL
RU_DH_113	570698	5593362	383	0	-90	286	243.9	251.15	7.25	7.25m @ 1.91 % Zn; 0.13 % Cu; 0.23 % Pb	3631-EL
RU_DH_114	570590	5593329	375	0	-90	286.5	231.5	236.6	5.1	5.10m @ 1.00 % Zn; 0.04 % Cu; 0.98 % Pb	3631-EL
RU_DH_114	570590	5593329	375	0	-90	286.5	259.65	262	2.35	2.35m @ 1.00 % Zn; 0.08 % Cu; 0.26 % Pb	3631-EL
RU_DH_115	570383	5593758	379	0	-90	103.6	50.1	51.1	1	1.00m @ 1.96 % Zn; 0.05 % Cu; 0.02 % Pb	3631-EL
RU_DH_15	570322	5593842	381	116	-72	109	44.8	46.8	2	2.00m @ 1.76 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_15	570322	5593842	381	116	-72	109	62	72	10	10.00m @ 2.29 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_15	570322	5593842	381	116	-72	109	74.3	77	2.7	2.70m @ 3.92 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_16	570381	5593870	385	218	-90	153.25	88.6	91.7	3.1	3.10m @ 2.05 % Zn; 0.03 % Cu; 0.00 % Pb	3631-EL
RU_DH_17	570212	5593746	373	0	-90	139	108.5	112.5	4	4.00m @ 1.91 % Zn; 0.00 % Cu; 0.02 % Pb	3631-EL
RU_DH_18	570632	5593727	391	35	-74	49.6	36	39	3	3.00m @ 3.35 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_21	570631	5593687	390	355	-90	134.05	99.4	101.4	2	2.00m @ 2.78 % Zn; 0.06 % Cu; 0.03 % Pb	3631-EL
RU_DH_21	570631	5593687	390	355	-90	134.05	113.85	114.85	1	1.00m @ 1.64 % Zn; 0.00 % Cu; 0.02 % Pb	3631-EL
RU_DH_21	570631	5593687	390	355	-90	134.05	120.2	127.45	7.25	7.25m @ 1.79 % Zn; 0.04 % Cu; 0.02 % Pb	3631-EL
RU_DH_22	570378	5593282	361	46	-90	330	268.8	280	11.2	11.20m @ 2.45 % Zn; 0.30 % Cu; 0.20 % Pb	3631-EL
RU_DH_22	570378	5593282	361	46	-90	330	290	294.95	4.95	4.95m @ 1.57 % Zn; 0.06 % Cu; 0.11 % Pb	3631-EL
RU_DH_23	570201	5593542	363	46	-90	274.45	215	218	3	3.00m @ 1.06 % Zn; 0.09 % Cu; 0.23 % Pb	3631-EL
RU_DH_28	570597	5593487	376	46	-90	327.2	227.2	231.1	3.9	3.90m @ 15.71 % Zn; 2.20 % Cu; 3.40 % Pb	3631-EL
RU_DH_28	570597	5593487	376	46	-90	327.2	238.5	239.5	1	1.00m @ 3.35 % Zn; 6.32 % Cu; 0.22 % Pb	3631-EL
RU_DH_3	570359	5593815	379	112	-90	132	75.42	77.5	2.08	2.08m @ 10.60 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_305	569876	5593896	387	44	-90	620	132.5	134	1.5	1.50m @ 2.10 % Zn; 0.07 % Cu; 0.05 % Pb	3631-EL
RU_DH_308	569796	5593868	377	42	-90	360	107.3	108.3	1	1.00m @ 2.54 % Zn; 1.71 % Cu; 0.23 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	199.8	205	5.2	5.20m @ 1.82 % Zn; 0.09 % Cu; 0.42 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	243.6	248	4.4	4.40m @ 1.83 % Zn; 0.13 % Cu; 0.44 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	267	270	3	3.00m @ 1.41 % Zn; 0.08 % Cu; 0.05 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	276	280.2	4.2	4.20m @ 2.95 % Zn; 0.06 % Cu; 0.05 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	285.6	287.5	1.9	1.90m @ 1.72 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	322.5	325.5	3	3.00m @ 6.58 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_30A	570016	5593503	359	344	-85	400	377	379	2	2.00m @ 1.25 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_31	569996	5592849	361	0	-90	389.5	352.8	355.8	3	3.00m @ 0.87 % Zn; 0.02 % Cu; 0.01 % Pb	3631-EL
RU_DH_31	569996	5592849	361	0	-90	389.5	360.8	361.8	1	1.00m @ 1.05 % Zn; 0.02 % Cu; 0.00 % Pb	3631-EL
RU_DH_312	569754	5593790	371	46	-87	521	52.3	58.4	6.1	6.10m @ 10.54 % Zn; 2.32 % Cu; 1.20 % Pb	3631-EL
RU_DH_312	569754	5593790	371	46	-87	521	64	72.4	8.4	8.40m @ 1.77 % Zn; 1.67 % Cu; 0.07 % Pb	3631-EL
RU_DH_312	569754	5593790	371	46	-87	521	203	204	1	1.00m @ 3.72 % Zn; 0.65 % Cu; 2.63 % Pb	3631-EL
RU_DH_316	569859	5592939	372	50	-88	491	468.3	472	3.7	3.70m @ 1.47 % Zn; 0.07 % Cu; 0.05 % Pb	3631-EL
RU_DH_31A	569834	5593225	376	35	-84	680	271.7	273	1.3	1.30m @ 4.46 % Zn; 0.24 % Cu; 0.10 % Pb	3631-EL
RU_DH_31A	569834	5593225	376	35	-84	680	308	310.5	2.5	2.50m @ 1.08 % Zn; 0.06 % Cu; 0.05 % Pb	3631-EL
RU_DH_32	569792	5593146	380	46	-90	396	291.85	293.85	2	2.00m @ 1.60 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_32A	569887	5593050	373	6	-85	830	175	176	1	1.00m @ 1.70 % Zn; 0.02 % Cu; 1.57 % Pb	3631-EL
RU_DH_32A	569887	5593050	373	6	-85	830	281	282.5	1.5	1.50m @ 3.75 % Zn; 0.14 % Cu; 0.08 % Pb	3631-EL
RU_DH_32A	569887	5593050	373	6	-85	830	294	297	3	3.00m @ 2.07 % Zn; 0.13 % Cu; 0.05 % Pb	3631-EL
RU_DH_32A	569887	5593050	373	6	-85	830	303	305	2	2.00m @ 1.81 % Zn; 0.08 % Cu; 0.05 % Pb	3631-EL
RU_DH_341	570860	5593726	419	43	-87	540	326.1	329.3	3.2	3.20m @ 3.37 % Zn; 0.25 % Cu; 0.11 % Pb	3631-EL
RU_DH_341	570860	5593726	419	43	-87	540	356.3	357.3	1	1.00m @ 1.78 % Zn; 0.14 % Cu; 0.20 % Pb	3631-EL
RU_DH_347	570112	5593845	389	46	-90	171	40	42	2	2.00m @ 1.73 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_348	570310	5593431	363	46	-87	340	224.5	225.75	1.25	1.25m @ 4.74 % Zn; 0.05 % Cu; 0.36 % Pb	3631-EL
RU_DH_348	570310	5593431	363	46	-87	340	286.8	290.6	3.8	3.80m @ 1.92 % Zn; 0.30 % Cu; 0.05 % Pb	3631-EL
RU_DH_35	570702	5593437	382	0	-90	335.35	246	253.8	7.8	7.80m @ 7.73 % Zn; 0.56 % Cu; 1.99 % Pb	3631-EL
RU_DH_351	570020	5593730	386	46	-90	267	62.8	67.5	4.7	4.70m @ 4.35 % Zn; 0.08 % Cu; 1.71 % Pb	3631-EL
RU_DH_351	570020	5593730	386	46	-90	267	131.6	139	7.4	7.40m @ 1.95 % Zn; 0.18 % Cu; 0.06 % Pb	3631-EL
RU_DH_352	570720	5593488	385	46	-85	640	235.9	247.1	11.2	11.20m @ 5.55 % Zn; 0.32 % Cu; 1.19 % Pb	3631-EL
RU_DH_352	570720	5593488	385	46	-85	640	592.8	595.1	2.3	2.30m @ 2.00 % Zn; 0.15 % Cu; 0.34 % Pb	3631-EL
RU_DH_354	569949	5593685	381	46	-88	244	135	148	13	13.00m @ 1.69 % Zn; 0.21 % Cu; 0.39 % Pb	3631-EL
RU_DH_354	569949	5593685	381	46	-88	244	162	172.4	10.4	10.40m @ 1.67 % Zn; 0.06 % Cu; 0.66 % Pb	3631-EL
RU_DH_354	569949	5593685	381	46	-88	244	225	227.5	2.5	2.50m @ 2.90 % Zn; 0.30 % Cu; 0.01 % Pb	3631-EL
RU_DH_359	570585	5593455	374	49	-86	680	241.7	246.4	4.7	4.70m @ 3.82 % Zn; 0.29 % Cu; 0.07 % Pb	3631-EL
RU_DH_362	569886	5593634	374	63	-89	448	206.3	211.2	4.9	4.90m @ 2.51 % Zn; 0.11 % Cu; 0.05 % Pb	3631-EL
RU_DH_362	569886	5593634	374	63	-89	448	216.6	218.2	1.6	1.60m @ 1.90 % Zn; 0.10 % Cu; 0.05 % Pb	3631-EL
RU_DH_363	569803	5594130	395	46	-88	250	51.3	56.7	5.4	5.40m @ 1.79 % Zn; 0.09 % Cu; 0.18 % Pb	3631-EL
RU_DH_363	569803	5594130	395	46	-88	250	80.7	86	5.3	5.30m @ 2.25 % Zn; 0.07 % Cu; 0.05 % Pb	3631-EL
RU_DH_367	570015	5592985	363	57	-87	920.5	316.5	319	2.5	2.50m @ 11.13 % Zn; 1.82 % Cu; 1.82 % Pb	3631-EL
RU_DH_367	570015	5592985	363	57	-87	920.5	400.8	405.5	4.7	4.70m @ 2.69 % Zn; 0.28 % Cu; 0.22 % Pb	3631-EL
RU_DH_367	570015	5592985	363	57	-87	920.5	415.9	417.7	1.8	1.80m @ 1.95 % Zn; 0.13 % Cu; 0.05 % Pb	3631-EL
RU_DH_36A	570165	5593299	357	338	-79	476	446	448	2	2.00m @ 1.51 % Zn; 0.04 % Cu; 0.02 % Pb	3631-EL
RU_DH_36A	570165	5593299	357	338	-79	476	451.5	453	1.5	1.50m @ 1.57 % Zn; 0.07 % Cu; 0.31 % Pb	3631-EL
RU_DH_372	570361	5593238	361	42	-86	840	259.5	261	1.5	1.50m @ 1.54 % Zn; 0.70 % Cu; 1.52 % Pb	3631-EL
RU_DH_372	570361	5593238	361	42	-86	840	263.5	269.5	6	6.00m @ 6.63 % Zn; 0.54 % Cu; 0.76 % Pb	3631-EL
RU_DH_372	570361	5593238	361	42	-86	840	295.5	298	2.5	2.50m @ 2.17 % Zn; 0.43 % Cu; 0.09 % Pb	3631-EL
RU_DH_372	570361	5593238	361	42	-86	840	338.8	340.4	1.6	1.60m @ 1.25 % Zn; 0.13 % Cu; 0.10 % Pb	3631-EL
RU_DH_37A	570095	5593040	358	11	-77	830	297.5	300	2.5	2.50m @ 1.08 % Zn; 0.08 % Cu; 0.05 % Pb	3631-EL
RU_DH_38	570757	5593376	389	92	-90	351.6	243.9	251.9	8	8.00m @ 1.22 % Zn; 0.11 % Cu; 0.08 % Pb	3631-EL
RU_DH_38	570757	5593376	389	92	-90	351.6	271.9	272.9	1	1.00m @ 1.71 % Zn; 0.16 % Cu; 0.19 % Pb	3631-EL
RU_DH_38	570757	5593376	389	92	-90	351.6	277.9	278.9	1	1.00m @ 1.12 % Zn; 0.27 % Cu; 0.02 % Pb	3631-EL
RU_DH_38	570757	5593376	389	92	-90	351.6	282.9	283.9	1	1.00m @ 1.28 % Zn; 0.07 % Cu; 0.51 % Pb	3631-EL
RU_DH_38A	569955	5592859	362	18	-81	480	330.1	334.3	4.2	4.20m @ 5.78 % Zn; 1.30 % Cu; 1.28 % Pb	3631-EL
RU_DH_38A	569955	5592859	362	18	-81	480	370.3	371.3	1	1.00m @ 1.16 % Zn; 2.91 % Cu; 0.31 % Pb	3631-EL
RU_DH_38A	569955	5592859	362	18	-81	480	386	391.5	5.5	5.50m @ 1.31 % Zn; 0.75 % Cu; 0.12 % Pb	3631-EL
RU_DH_38A	569955	5592859	362	18	-81	480	412	414	2	2.00m @ 1.28 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_39	570560	5593584	381	0	-90	359	185.55	195.5	9.95	9.95m @ 3.89 % Zn; 0.40 % Cu; 1.35 % Pb	3631-EL
RU_DH_40	570627	5593366	378	0	-90	370.15	256.2	264.95	8.75	8.75m @ 5.38 % Zn; 0.26 % Cu; 0.33 % Pb	3631-EL
RU_DH_42	570773	5593507	394	0	-90	504.9	224.95	226.3	1.35	1.35m @ 7.52 % Zn; 0.35 % Cu; 3.31 % Pb	3631-EL
RU_DH_44	570439	5593344	365	74	-90	318.1	228.25	238.65	10.4	10.40m @ 1.32 % Zn; 0.06 % Cu; 0.66 % Pb	3631-EL
RU_DH_44	570439	5593344	365	74	-90	318.1	243.65	244.65	1	1.00m @ 2.25 % Zn; 0.09 % Cu; 0.70 % Pb	3631-EL
RU_DH_44	570439	5593344	365	74	-90	318.1	250.65	251.65	1	1.00m @ 2.67 % Zn; 0.18 % Cu; 1.12 % Pb	3631-EL
RU_DH_44	570439	5593344	365	74	-90	318.1	255.15	259.15	4	4.00m @ 3.17 % Zn; 0.13 % Cu; 1.83 % Pb	3631-EL
RU_DH_45	570630	5593580	384	0	-90	310.3	192.6	193.6	1	1.00m @ 1.53 % Zn; 0.16 % Cu; 0.70 % Pb	3631-EL
RU_DH_46	570449	5593628	380	357	-90	350	134.5	138.5	4	4.00m @ 12.61 % Zn; 1.24 % Cu; 0.41 % Pb	3631-EL
RU_DH_46	570449	5593628	380	357	-90	350	150.2	164.2	14	14.00m @ 1.45 % Zn; 0.09 % Cu; 0.45 % Pb	3631-EL
RU_DH_47	570826	5593439	399	154	-90	459.9	423.6	424.6	1	1.00m @ 1.03 % Zn; 0.79 % Cu; 0.00 % Pb	3631-EL
RU_DH_48	570421	5593448	368	0	-90	312	295.1	297.1	2	2.00m @ 1.00 % Zn; 0.01 % Cu; 0.00 % Pb	3631-EL
RU_DH_48	570421	5593448	368	0	-90	312	303.1	305.1	2	2.00m @ 1.00 % Zn; 0.02 % Cu; 0.10 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	260	261	1	1.00m @ 1.38 % Zn; 0.10 % Cu; 0.33 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	272	273	1	1.00m @ 1.18 % Zn; 0.04 % Cu; 0.39 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	277	278	1	1.00m @ 1.00 % Zn; 0.04 % Cu; 0.74 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	282	287	5	5.00m @ 1.23 % Zn; 0.06 % Cu; 0.50 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	291	292	1	1.00m @ 1.16 % Zn; 0.03 % Cu; 0.53 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	301	305	4	4.00m @ 1.34 % Zn; 0.05 % Cu; 0.20 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	308	314	6	6.00m @ 1.71 % Zn; 0.13 % Cu; 0.24 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	318	319	1	1.00m @ 1.23 % Zn; 0.03 % Cu; 0.28 % Pb	3631-EL
RU_DH_49	570519	5593342	369	0	-90	340.8	325	327	2	2.00m @ 1.45 % Zn; 0.08 % Cu; 0.44 % Pb	3631-EL
RU_DH_51	570918	5593528	411	269	-90	396.05	202.6	205.6	3	3.00m @ 2.03 % Zn; 0.11 % Cu; 0.03 % Pb	3631-EL
RU_DH_51	570918	5593528	411	269	-90	396.05	315.05	316.05	1	1.00m @ 1.14 % Zn; 0.23 % Cu; 0.16 % Pb	3631-EL
RU_DH_53	570676	5593304	380	279	-90	337	203.4	209.4	6	6.00m @ 4.30 % Zn; 0.25 % Cu; 0.82 % Pb	3631-EL
RU_DH_53	570676	5593304	380	279	-90	337	233.95	235.95	2	2.00m @ 2.09 % Zn; 0.08 % Cu; 0.03 % Pb	3631-EL
RU_DH_53	570676	5593304	380	279	-90	337	247.95	248.95	1	1.00m @ 1.50 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_53	570676	5593304	380	279	-90	337	256.95	262.95	6	6.00m @ 1.31 % Zn; 0.06 % Cu; 0.02 % Pb	3631-EL
RU_DH_53	570676	5593304	380	279	-90	337	265.95	284.3	18.35	18.35m @ 3.46 % Zn; 0.28 % Cu; 0.14 % Pb	3631-EL
RU_DH_53	570676	5593304	380	279	-90	337	297.3	298.3	1	1.00m @ 2.32 % Zn; 0.17 % Cu; 0.00 % Pb	3631-EL
RU_DH_57	570374	5593517	371	39	-90	312.5	174.65	175.65	1	1.00m @ 1.70 % Zn; 0.16 % Cu; 0.54 % Pb	3631-EL
RU_DH_58	570560	5593509	375	0	-90	384.95	214.25	216.25	2	2.00m @ 2.11 % Zn; 0.20 % Cu; 0.40 % Pb	3631-EL
RU_DH_58	570560	5593509	375	0	-90	384.95	262.6	265.6	3	3.00m @ 0.90 % Zn; 0.89 % Cu; 0.01 % Pb	3631-EL
RU_DH_60	570481	5593664	382	290	-90	153.65	121.2	122.2	1	1.00m @ 1.57 % Zn; 0.13 % Cu; 1.28 % Pb	3631-EL
RU_DH_60A	570028	5593642	372	37	-82	470	188.4	192.8	4.4	4.40m @ 2.45 % Zn; 0.07 % Cu; 0.44 % Pb	3631-EL
RU_DH_60A	570028	5593642	372	37	-82	470	199	207.2	8.2	8.20m @ 2.63 % Zn; 0.13 % Cu; 0.13 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	39	41	2	2.00m @ 1.87 % Zn; 0.05 % Cu; 0.05 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	49.9	52.5	2.6	2.60m @ 2.12 % Zn; 0.02 % Cu; 0.05 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	92.8	93.8	1	1.00m @ 2.57 % Zn; 0.03 % Cu; 0.03 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	104.1	112.1	8	8.00m @ 1.54 % Zn; 0.02 % Cu; 0.00 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	129.2	130.2	1	1.00m @ 1.53 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	143.2	145.2	2	2.00m @ 1.65 % Zn; 0.01 % Cu; 0.01 % Pb	3631-EL
RU_DH_61	570417	5593722	380	0	-90	253	168.7	169.7	1	1.00m @ 2.01 % Zn; 0.04 % Cu; 0.00 % Pb	3631-EL
RU_DH_61A	570012	5593825	391	345	-89	256	26	29	3	3.00m @ 1.76 % Zn; 0.03 % Cu; 0.23 % Pb	3631-EL
RU_DH_61A	570012	5593825	391	345	-89	256	50	54	4	4.00m @ 9.23 % Zn; 0.07 % Cu; 1.05 % Pb	3631-EL
RU_DH_61A	570012	5593825	391	345	-89	256	63	65	2	2.00m @ 3.53 % Zn; 0.03 % Cu; 0.62 % Pb	3631-EL
RU_DH_61A	570012	5593825	391	345	-89	256	164	165	1	1.00m @ 1.22 % Zn; 0.02 % Cu; 0.05 % Pb	3631-EL
RU_DH_62	570615	5593223	379	0	-90	505.1	239.5	242.55	3.05	3.05m @ 1.00 % Zn; 0.17 % Cu; 0.20 % Pb	3631-EL
RU_DH_62	570615	5593223	379	0	-90	505.1	443.8	444.8	1	1.00m @ 1.00 % Zn; 0.10 % Cu; 0.50 % Pb	3631-EL
RU_DH_62	570615	5593223	379	0	-90	505.1	467.8	469.8	2	2.00m @ 1.00 % Zn; 0.06 % Cu; 0.02 % Pb	3631-EL
RU_DH_63	570770	5593232	391	0	-90	352.05	185.2	186.8	1.6	1.60m @ 1.58 % Zn; 0.04 % Cu; 0.81 % Pb	3631-EL
RU_DH_64	570700	5593729	395	0	-90	394.3	84.2	85.2	1	1.00m @ 1.10 % Zn; 0.06 % Cu; 0.05 % Pb	3631-EL
RU_DH_65	570343	5593380	361	0	-90	342	302.6	304.6	2	2.00m @ 1.27 % Zn; 0.08 % Cu; 0.11 % Pb	3631-EL
RU_DH_66	570839	5593298	397	0	-90	531.6	232.5	233.5	1	1.00m @ 1.09 % Zn; 0.23 % Cu; 0.19 % Pb	3631-EL
RU_DH_66	570839	5593298	397	0	-90	531.6	237.5	258	20.5	20.50m @ 2.37 % Zn; 0.11 % Cu; 0.09 % Pb	3631-EL
RU_DH_66	570839	5593298	397	0	-90	531.6	264	292	28	28.00m @ 2.10 % Zn; 0.10 % Cu; 0.13 % Pb	3631-EL
RU_DH_68	570405	5593646	378	346	-90	462.9	118	126	8	8.00m @ 1.09 % Zn; 0.08 % Cu; 0.34 % Pb	3631-EL
RU_DH_68	570405	5593646	378	346	-90	462.9	133	135	2	2.00m @ 1.14 % Zn; 0.15 % Cu; 0.09 % Pb	3631-EL
RU_DH_75	570309	5593493	367	351	-90	268.35	207.25	210.8	3.55	3.55m @ 1.23 % Zn; 0.09 % Cu; 0.17 % Pb	3631-EL
RU_DH_83	570349	5593649	375	0	-90	274.9	201.45	203.45	2	2.00m @ 1.00 % Zn; 0.00 % Cu; 0.06 % Pb	3631-EL
RU_DH_83	570349	5593649	375	0	-90	274.9	218.15	225.15	7	7.00m @ 1.00 % Zn; 0.07 % Cu; 0.14 % Pb	3631-EL
RU_DH_83	570349	5593649	375	0	-90	274.9	228.15	229.15	1	1.00m @ 1.00 % Zn; 0.10 % Cu; 0.20 % Pb	3631-EL
RU_DH_9	570493	5593926	396	226	-70	127.4	34.6	47.5	12.9	12.90m @ 3.71 % Zn; 0.14 % Cu; 0.00 % Pb	3631-EL
RU_DH_9	570493	5593926	396	226	-70	127.4	52	61.5	9.5	9.50m @ 2.05 % Zn; 0.00 % Cu; 0.00 % Pb	3631-EL
RU_DH_9	570493	5593926	396	226	-70	127.4	103.35	109	5.65	5.65m @ 4.73 % Zn; 0.30 % Cu; 0.00 % Pb	3631-EL

Table 2 - JORC Code, 2012 Edition

Section 1 Sampling Techniques and Data

Criteria

JORC Code explanation

Commentary

Sampling techniques

· Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

· Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

· Aspects of the determination of mineralisation that are Material to the Public Report.

· In cases where 'industry standard' work has been done this would be relatively simple (e.g. 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases, more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (e.g. submarine nodules) may warrant disclosure of detailed information.

· Samples were taken from diamond drill core through sulphide or oxide mineralised intervals.

· Sampling intervals ranged from 0.1 m to over 1.0m

· Sample quality was ensured by a GKZ standard calculations to ensure results from X-ray spectral analyses were representative

· A total of 599 meters of core was sampled for the Rulikha Deposit

· Core samples were prepared by the geological expeditions by cutting the core in half, crushing and milling the samples (the size fractions aren't recorded but noted as standard fractions), then analysed with X-ray spectral techniques

· No core is available for verification sampling

Drilling techniques

· Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

· Drilling was conducted using standard HQ sized diamond drilling technique.

· Various drilling campaigns were conducted by geological expeditions as detailed above.

· The drill holes purpose ranged from geochemical sampling using KGK techniques (these holes are not included in the data for this announcement) to deeper stratigraphic holes. Only holes with assay data through the Rulikha deposit were included in this announcement.

Drill sample recovery

· Method of recording and assessing core and chip sample recoveries and results assessed.

· Measures taken to maximise sample recovery and ensure representative nature of the samples.

· Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

· Core recovery was an average of 42%, the total range was from 17 - 66% recovery

· Recovery logs are unavailable for drill hole data base, so the relationship between recovery and grade has not been evaluated.

Logging

· Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

· Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

· The total length and percentage of the relevant intersections logged.

· Geologists from the various companies and expeditions completed logging.

· The logging was approved by the committee for geology.

· Sections and plan maps were available to verify geology and structure.

· East Star geologists were able to confirm the geology at surface with geological mapping at a scale of 1:2000 in 2024.

· Approximately 80% of the logged sections were available for this announcement, strip logs and additional information has been requested to inform future work.

Sub-sampling techniques and sample preparation

· If core, whether cut or sawn and whether quarter, half or all core taken.

· If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

· For all sample types, the nature, quality, and appropriateness of the sample preparation technique.

· Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

· Measures taken to ensure that the sampling is representative of the in-situ material collected, including for instance results for field duplicate/second-half sampling.

· Whether sample sizes are appropriate to the grain size of the material being sampled.

· Half core samples were collected for processing.

· Sub sampling techniques aren't clearly recorded in the reports available.

Quality of assay data and laboratory tests

· The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

· For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

· Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established.

· The samples were analyzed using X-ray spectral analysis, which requires finely powdered, homogeneous samples to ensure accurate detection of elements (Cu, Pb, Zn, Au and Ag).

· It's unclear if Au and Ag analyses were conducted on all samples analysed

· The preparation would have been tailored to produce a sample compatible with the X-ray spectrometer, typically involving pressing the powdered sample into a pellet or fusing it into a glass bead for analysis, though the reports do not specify these steps.

· X-ray spectral techniques were commonly used in historical exploration in the soviet era. The techniques have been subsequently replaced by modern analytical techniques, however, they are generally viewed as having produced accurate results. The quality of the data has only been evaluated as reported historically by East Star geologists and have been represented as such in this announcement.

Verification of sampling and assaying

· The verification of significant intersections by either independent or alternative company personnel.

· The use of twinned holes.

· Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

· Discuss any adjustment to assay data.

· Sampling data has been compared between reports.

· No verification sampling of the historical assays has been conducted.

Location of data points

· Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

· Specification of the grid system used.

· Quality and adequacy of topographic control.

· Drill holes were surveyed using Garmin GPSMAP 62S handheld GPS device. DGPS surveys are planned once all drilling is completed.

· Grid system WGS84, UTM44N.

· 20 historical drill holes have been located in the area during mapping activities in 2023-2024.

· Some errors were noted in the elevation readings (from 5 - 14 m errors), these were adjusted to the elevation values of the SRTM topography over the area.

Data spacing and distribution

· Data spacing for reporting of Exploration Results.

· Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

· Whether sample compositing has been applied.

· Historical drilling grid for the Rulikha deposit: 200 x 100 m for C2 category resources, 400 x 100 m or 300 x 200 m for P1 category.

· Geological distribution is sufficient for an exploration target or preliminary Resource calculations.

· Significant intercepts are reported for results from 2024 drilling using the following parameters:

Parameter	Report 1	Report 2	Report 3
Element	Cu	Cu	Zn
Min Cut-off Grade %	1	0.3%	0.8%
Max Cut-off Grade %	n/a	n/a	n/a
Min Intercept Length (metres)	n/a	2m	n/a
Maximum Consecutive Internal Waste (m)	2m	2m	2m
Minimum Intercept Grade %	n/a	All (no filter)	All (no filter)
Co-elements in report	Pb, Zn	Pb, Zn	Cu, Pb

Orientation of data in relation to geological structure

· Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

· If the relationship between the drilling orientation and the orientation of key mineralized structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

· Samples were reportedly taken for intervals with significant sulphide mineralization.

· The ore body generally dips 10 to 25° to the SW. In some parts of the deposit the ore body dips steeper 40. These steeper areas of mineralization are interpreted to be the result of post mineralization deformation.

· The ore body is cut by NS and EW faults.

Sample security

· The measures taken to ensure sample security.

· Sample security is unclear and cannot be verified by East Star.

Audits or reviews

· The results of any audits or reviews of sampling techniques and data.

· No audits were undertaken for this work.

Section 2 Reporting of Exploration Results

Criteria

JORC Code explanation

Commentary

Mineral tenement and land tenure status

· Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

· The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

· The Rulikha polymetallic Deposit is partially located in the eastern part of exploration license 1799-EL (the "License"). The license was issued to Rudny Resources Limited on 28 July 2022 for initial period of 6 years with a possibility of further five years extension subject to reduction of the license area by 40%.

· East Star resources have servitude for exploration from the local Akim (administrative head), and local landholders, over some areas within the Licence and the license can be explored under these agreements. Additional agreements will be required for the Rulikha deposit.

· Some other areas within the Licence are restricted in access due to hydrogeological constraints. Additional permission will be required to gain access to drill within these areas.

· There are no known legal or security impediments to obtaining a mining license.

Exploration done by other parties

· Acknowledgment and appraisal of exploration by other parties.

· Table of previously completed exploration

Principal author, year	Period	Exploration	Results
1948	1948	Prospecting and exploration at Talovskoye and Openyshevskoye deposits by Priirtysh Geological Exploration Party.	Identified polymetallic deposits in Rudny Altai, including early recognition of Rulikha and Talovskoye potential.
1950-1954	1950-1953	Prospecting and exploration by Shemonaikha Party of Altai Expedition, focusing on geological mapping and initial drilling.	Confirmed polymetallic mineralization in the Rulikha area, establishing a foundation for further exploration.
1955-1963	1954-1962	Geological mapping, drilling, and reserve calculation by Shemonaikha GRP. Consolidated report in 1957 calculated reserves for Rulikhinskoye.	Delineated Rulikha deposit's geological structure; reserves calculated as of 01.01.1957, confirming VMS-polymetallic mineralization (Cu, Pb, Zn).
1968	1968	Geological structure and mineral resource assessment of M-44-57-B, G; M-44-58-A-v sheets.	Provided regional geological context, supporting Rulikha's placement within the Aleysk anticlinorium.
1965-1970	1965-1969	Geological prospecting by Shemonaikha GRP, including geophysical surveys and drilling.	Refined geological and geophysical understanding of Rulikha, identifying ore-hosting structures.
1971	1968-1971	Geological and geophysical work by Priirtyshskaya Party at Rulevsky site.	Further delineated Rulikha's mineralization, confirming its association with Talovskaya-Gerikhovskaya formation contact.
1979	1979	General prospecting at Buzanikhinsky area, adjacent to Rulikha.	Identified additional mineralization potential near Rulikha, supporting regional prospectivity.
1983	1978-1982	Detailed prospecting by Minsk GRP at Rulikhinsko-Vydrikhinsky area; drilling and geophysical surveys.	Confirmed extent of Rulikha mineralization, refined ore zone boundaries, and identified vein-type ores.
1983	1979-1983	Detailed prospecting by Ubin GRP at Talovsko-Rulevsky area, focusing on Talovskoye and Rulikha flanks.	Positive assessment of Talovskoye; Rulikha flanks showed limited economic potential but warranted further study.
1992	1989-1992	Deep drilling (6,785 m), geophysical logging (6,607 m gamma), 737 geochemical samples, 16 core samples; X-ray spectral analysis for Cu, Pb, Zn, Co, Mo.	Negative assessment for Rulikha deep horizons (to 1000 m); vein-type ores in borehole No. 323 (3.60-5.84% Zn) uneconomic. Talovskoye deemed promising with P1/P2 resources, recommended for further drilling (9,250 m).
1948	1948	Prospecting and exploration at Talovskoye and Openyshevskoye deposits by Priirtysh Geological Exploration Party.	Identified polymetallic deposits in Rudny Altai, including early recognition of Rulikha and Talovskoye potential.
ESR	2024	Drilling of six verification and in-fill holes, topography survey, development of lithological model	MRE report

Geology

· Deposit type, geological setting, and style of mineralisation.

· Rulikha is Volcanogenic Massive Sulphide (VMS) deposit. Historical reports indicate that the type is felsic bimodal (or Kuroko-type).

· The mineralization is lenticular massive and disseminated sulphides hosted in volcaniclastic units sub horizontal units.

· Mineralisation occurs as zinc rich and copper-zinc rich units

· The area has seen post depositional deformation in the form of folding and faulting

Drill hole Information

· A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

o easting and northing of the drill hole collar

o elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar

o dip and azimuth of the hole

o down hole length and interception depth

o hole length.

· If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

· See table 1 for drill hole information and significant intercepts

· No material information has been excluded from this report

Data aggregation methods

· In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. cutting of high grades) and cut-off grades are usually Material and should be stated.

· Where aggregate intercepts incorporate short lengths of high-grade results and longer lengths of low-grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

· The assumptions used for any reporting of metal equivalent values should be clearly stated.

· Significant intercepts are reported for historical results.

· No metal equivalents are reported.

· Results for 5 elements are reported: Cu, Pb, Zn, Au, Ag.

Relationship between mineralisation widths and intercept lengths

· These relationships are particularly important in the reporting of Exploration Results.

· If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

· If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (e.g. 'down hole length, true width not known').

· The ore bodies are generally concordant to lithology.

· Drill holes were generally drilled vertically.

· Reported intercepts are therefore interpreted to be reasonably representative of true thickness, although this cannot be quantified at this stage of work.

Diagrams

· Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

· Relevant diagrams have been included in the body text.

Balanced reporting

· Where comprehensive reporting of all Exploration Results is not practical, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

· Grades below the cut off parameters have not been reported with these results. However, the mineralization has been noted within East Star's models and will inform future work.

Other substantive exploration data

· Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

· Not applicable.

Further work

· The nature and scale of planned further work (e.g. tests for lateral extensions or depth extensions or large-scale step-out drilling).

· Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

· East star is planning to model the historical results to understand economic viability. This may be followed by verification drilling and resource estimation.

· Adjacent licenses are under application

· Map of planned and completed drillholes is included in the body text.

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UPDEAKEEASLSFFA

TIDM	EST
Share Price	8.85p0.23%
Market Cap	£48.68m

Date	21 Oct 2025
Time	07:00:08
Category	Corporate updates
ID	1050E

TIDM	EST
Share Price	8.85p0.23%
Market Cap	£48.68m

Date	21 Oct 2025
Time	07:00:08
Category	Corporate updates
ID	1050E

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New VMS Licence Award at Rulikha Deposit