• Underground core drilling at Tomingley is focused on defining extensions to resources as well as improving confidence of Inferred Resources at McLeans and the Western Monzodiorite domain at Roswell. Both McLeans and the Western Monzodiorite are immediately adjacent to existing underground infrastructure.   
• Underground drilling comprising of 9 diamond holes for a total of 3,247 metres was completed to improve the confidence of the Inferred Resource at McLeans. This drilling discovered a second andesite with significant gold mineralisation, located approximately 150m to the west of the current resource. Significant gold intercepts hosted by the western andesite include:

          Significant drilling intercepts within the McLeans Inferred Resource hosted by the eastern andesite comprise:

• An intensive underground diamond core drilling program within and extensions to the current Inferred Resource hosted by the Western Monzodiorite domain at Roswell is in progress. Results have been received from 89 holes totalling 18,064 metres that were focussed within the mid-portion of the monzodiorite domain infilling existing drilling to a nominal 15m x 20m grid spacing for the purpose of converting to an Indicated Resource. The drilling confirmed multiple wide, high-grade gold intercepts within the 30m thick monzodiorite. Best intercepts include:

• Additional exploration drilling is planned to test the underground potential at Wyoming Three, extensions to mineralisation north of Caloma and a deep structural target (thrust splay identified by 2D seismic) beneath Roswell. Underground exploration drilling continues at Roswell.
  

PERTH, Australia, Nov. 02, 2025 (GLOBE NEWSWIRE) -- Alkane Resources Limited (ASX:ALK; TSX:ALK; OTCQX:ALKEF) (‘Alkane’ or ‘the Company’) is pleased to announce the latest results for underground expansion and pre-mine grade control drilling around the existing resources at the Company’s Tomingley Gold Operations (‘Tomingley’) in Central New South Wales.

Alkane Managing Director Nic Earner said: “Most of Tomingley’s deposits are open at depth and along strike. This drilling further demonstrates not only the significant resource expansion potential across the mine site but the potential to discover other deposits.

“Our underground and surface drill programs throughout Tomingley continue. We look forward to continuing to add further resources and mine life.”

Tomingley

Alkane Resources Ltd 100%

Tomingley is an open pit and underground mining development with a 1Mtpa processing facility in operation since 2014. The development is located near the village of Tomingley, approximately 50 kilometres southwest of Dubbo in Central West New South Wales. Tomingley Gold Operations Pty Ltd is a wholly owned subsidiary of Alkane.

Development at Tomingley has been based on the Wyoming One, Wyoming Three, Caloma, Caloma Two and Roswell gold deposits. To date, mining occurred underground at Wyoming One, Caloma, Caloma Two and Roswell deposits. Roswell stope ore production came on stream in April 2024 (See ASX Announcement dated 22 April 2024 and titled ‘Production Ore Extraction Commences at Roswell’) via an approximately 3 km decline from the Wyoming One open cut.

The Tomingley deposits are located within a tightly folded Ordovician volcano-sedimentary sequence that has been altered to a sericite-carbonate-albite-quartz-pyrite-arsenopyrite assemblage that is typical of orogenic lode-style gold deposits. Mineralised fluids are interpreted to have been focused by differential strain in and around andesitic volcanics due to the rheological competency contrast between the volcanics and the bounding volcaniclastic sediments. The brittle nature of the volcanics often leads to the development of shear-hosted sheeted quartz vein and breccia deposits within and adjacent to the andesitic bodies. Separately, thin carbonaceous mudstone strata appear to have been a focus for shearing and a chemical trap for gold.

Since underground mining commenced in 2018, extensive underground drilling has been employed to define ore reserves for extraction and maintain exploration to define additional resources. The most recent Reserves and Resources were summarised in the ASX Announcement dated 15 October 2025 and titled ‘NSW Resources and Reserves Statements FY25’.

The exploration focus at Tomingley is to define additional underground resources that lie outside the existing Resources and Reserves for the operation.

McLeans

The Inferred Resource at McLeans was estimated at 0.87 million tonnes grading 2.51g/t gold for 70,000oz (See ASX Announcement dated 2 May 2022 and titled ‘Roswell Mineral Resource up 37%’). The deposit is primarily hosted by one ‘brittle’ andesite with similar texture and geochemistry as the andesite that is host to most of the mineralisation at the Roswell deposit. The host andesite begins approximately 130m below the surface, is approximately 250m in strike length and remains open at depth. The andesite averages a thickness of 60m but thins to 25m along its upper and northern margins forming a ‘keel’. The mineralisation was interpreted to form three subvertical en échelon sheeted lodes. With high-grade ore shoots focused along the ‘keel’ that remains open at depth along the northern edge of the andesite.

In September, an underground drilling program comprising of 9 holes for a total of 3,247 metres was completed to improve the confidence at the McLeans Inferred Resource by infilling the drilling pattern to 40m x 60m. This drilling has discovered a second ‘western’ andesite with significant gold mineralisation that is located 150 metres west of the current McLeans resource estimation. Significant intercepts hosted by the Western Andesite include:

The nominal drilling pattern was reduced from 80m x 80m that the Inferred Resource was based on to 40m  x 60m to help improve the confidence in the estimation at McLeans. Significant intercepts into the Eastern Andesite and the Inferred Resource include:

Further drilling is planned to test both the Eastern and Western Andesite hosts at McLeans and to include the discovered Western Andesite into the McLeans Resource Estimation.

Roswell

A significant portion of the Roswell underground Inferred Resources (408 kt grading 1.9 g/t Au – see ASX Announcement dated 15 October 2025 and titled ‘NSW Resources and Reserves Statement FY25’) is hosted in the Western Monzodiorite domain. An intensive underground diamond core drilling program targeting the Western Monzodiorite resource and its open extensions is in progress at Roswell. The drilling will improve the confidence of the Mineral Resource Estimation (MRE) and provide a basis for conversion to Ore Reserves.

Results have been received from 89 holes totalling 18,064 metres that are focused within the mid-portion of the monzodiorite domain infilling existing drilling to a nominal 15m x 20m grid spacing for the purpose of converting to an Indicated Resource. The drilling confirmed multiple wide, high-grade gold intercepts within the 30 m thick monzodiorite. The results received are a large part of the current drill program within the Western Monzodiorite and include best intercepts of:

Final results will be published when received and compiled.

Surface exploration drilling on the at Tomingley mine site will commence in November 2025. The diamond core drilling is planned to test the underground potential at Wyoming Three, extensions to mineralisation north of Caloma and to test a deep structural target (thrust splay identified by 2D seismic) beneath Roswell. Underground exploration drilling continues at Roswell.

Tomingley Mineral Resources

Apparent arithmetic inconsistencies are due to rounding
These Mineral Resources are wholly inclusive of Ore Reserves.

Tomingley Ore Reserves

Apparent arithmetic inconsistencies are due to rounding

The above tables were published in ASX Announcement dated 15 October 2025 and titled ‘NSW Resources and Reserves Statement FY25’.

True widths are approximately 80% of intercept width. Reported intercepts (>1.3g/t Au) are calculated using a broad lower cut of 1.0g/t Au although grades lower than this may be present internally (internal dilution).

Table 2 - TOMINGLEY GOLD OPERATIONS SIGNIFICANT RESULTS ROSWELL - October 2025 (>1.3g/t)
Hole ID	Easting (MGA)	Northing (MGA)	RL (m)	Dip	Azimuth (Grid)	Total Depth	Interval From (m)	Interval To (m)	Intercept (m)	Au(g/t)	Ore Zone
ROSGT001D	613928	6390716	-68	-49	255	246.5	157.9	167.2	9.3	3.88
incl							157.9	162	4.1	6.72
incl							157.9	159	1.1	10.5	Western MZD
also							165.6	166.4	0.8	7.7
and							177.2	179	1.8	2.05
and							197	197.8	0.8	1.52
and							202.6	203.6	1	1.78
ROSUG016D	614070	6390825	-132	-5	274	302.9	No significant intercept (<1.3g/t Au)
ROSUG019D	614070	6390826	-132	-5	287	267	No significant intercept (<1.3g/t Au)
ROSUG026D	614070	6390825	-132	-5	261	308.9	207.6	209.1	1.5	1.32
and							225	227	2	2.25
and							229.3	232.6	3.3	3.6
ROSUG036D	614070	6390825	-133	-21	261	305.8	219.2	224	4.8	1.94
incl							219.2	220.2	1	6.47
and							227.5	228	0.5	5.18
and							256	262	6	1.6
ROSUG037D	614070	6390825	-133	-21	274	290.7	215.4	217.8	2.4	2.27
and							224	224.8	0.8	3.23
and							228.4	230	1.6	3.46
and							254.8	255.1	0.3	6.58
ROSUG038D	614070	6390826	-133	-22	284	287.9	No significant intercept (<1.3g/t Au)
ROSUG050D	614071	6390825	-133	-36	260	356.9	267.3	268.6	1.3	1.54
and							276.1	301.7	25.6	1.94
incl							278	281	3	5.12
ROSUG051D	614070	6390825	-133	-38	273	356.2	264	265	1	6
and							300.7	301.9	1.2	47.3
ROSUG052D	614071	6390826	-133	-36	285	336	267.1	279	11.9	1.31
ROSUG163D	614053	6390740	-145	2	264	300.2	208.6	210	1.4	4.05
and							250.3	252.1	1.8	3.18
ROSUG164D	614053	6390739	-145	3	253	341.6	220.7	225.5	4.8	1.32
ROSUG171D	614053	6390739	-145	-15	261	332.7	215.1	216	0.9	1.68
and							224	235	11	2.35
incl							224	227.1	3.1	6.53	Western MZD
and							243	245	2	1.68
and							251	255.2	4.2	2.17
ROSUG172D	614053	6390739	-145	-15	251	363.3	262.6	263.6	1	7.25
ROSUG409D	613969	6390780	-143	4	304	150	132.7	133.3	0.6	1.6
ROSUG411D	613969	6390780	-143	-8	302	156.1	No significant intercept (<1.3g/t Au)
ROSUG412D	613969	6390780	-144	-19	303	168.1	131.4	132.8	1.4	4.2
and							139	140.9	1.9	2.04
ROSUG413D	613969	6390780	-143	-3	295	149.6	122.6	124	1.4	1.79
and							130	131	1	5.85
ROSUG414D	613969	6390780	-144	-14	295	168.1	124.9	127.8	2.9	1.81
ROSUG415D	613969	6390780	-144	-23	291	186	122.7	123.5	0.8	1.74
and							128	135.5	7.5	2.8
and							143.9	144.6	0.7	2.63
ROSUG417D	613969	6390780	-142	4	286	150	119	120	1	2.32
and							121.7	122.2	0.5	3.21
and							125	126	1	1.46
ROSUG418D	613969	6390780	-143	-7	286	152.7	115.4	116.6	1.2	1.52
and							125	130.4	5.4	2.83
ROSUG419D	613966	6390772	-144	-20	284	167.7	123	124	1	1.72
and							141	142.2	1.2	1.32
ROSUG420D	613966	6390772	-144	-27	285	185.8	123.4	124.3	0.9	10.3
and							128	130.8	2.8	2.03
ROSUG421D	613969	6390780	-142	11	279	146.5	106.9	109	2.1	11.3
incl							107.3	108	0.7	30.8
and							131	132	1	3.18
ROSUG422D	613968	6390779	-143	-3	277	155.7	116.8	118	1.2	1.78
and							124.6	131.4	6.8	2.27
ROSUG423D	613972	6390781	-170	-4	277	152.6	109.4	109.7	0.3	2.14
ROSUG424D	613966	6390772	-144	-23	277	173.7	136	137.4	1.4	1.8
and							156.7	157.8	1.1	6.61
ROSUG426D	613969	6390780	-142	4	268	151.9	115.3	139.5	24.2	2.65
ROSUG427D	613972	6390780	-169	3	266	153	122.9	125	2.1	1.67
ROSUG428D	613966	6390772	-144	-18	266	161.7	112.2	122.7	10.5	2
incl							117.9	119.8	1.9	7.31
ROSUG429D	613966	6390772	-144	-28	266	189	156.7	164	7.3	2.07
incl							156.7	159	2.3	4.84
ROSUG430D	613969	6390779	-142	10	262	161.4	118.9	131	12.1	5.44
incl							123	125	2	12.2
also							129	130	1	14.7
and							146	147	1	2.32
ROSUG431D	613968	6390779	-143	-2	261	164.7	113	114	1	2.06
and							121	122	1	1.57
and							125	126	1	1.47
and							131.3	136.9	5.6	1.43
incl							134.5	136	1.5	3.12
ROSUG432D	613966	6390771	-144	-13	261	158.7	118	128.7	10.7	1.5
incl							128.1	128.7	0.6	8.44
ROSUG433D	613966	6390771	-144	-22	258	182.7	115.9	117.1	1.2	2.67
ROSUG434D	613968	6390778	-143	3	254	182.5	121.6	122.8	1.2	3.06
and							134.5	135.5	1	2.11
and							146.2	148.2	2	13.3
incl							146.2	146.9	0.7	36
and							156.6	158.1	1.5	3.74
ROSUG435D	613972	6390780	-169	3	254	179.7	135.8	144	8.2	2.77	Western MZD
incl							139.6	140.8	1.2	13.3
ROSUG436D	613966	6390771	-144	-16	251	179.8	122.7	127.9	5.2	3.06
ROSUG437D	613968	6390778	-142	7	249	191.5	129.2	131.7	2.5	1.4
ROSUG438D	613968	6390778	-143	-2	250	191.7	156.7	157.7	1	1.94
ROSUG439D	613966	6390771	-144	-12	249	179.5	131.5	144	12.5	2.05
incl							139	140	1	6.46
and							164.8	166	1.2	1.71
and							167.1	168.7	1.6	1.81
ROSUG440D	613966	6390771	-144	-20	247	197.6	129.3	130.8	1.5	2.06
and							143.1	143.9	0.8	1.92
and							153.6	154	0.4	3.83
and							157	158.9	1.9	1.46
and							166.5	173	6.5	8.03
incl							170.7	171.6	0.9	37.3
ROSUG441D	613968	6390778	-143	3	241	194.6	No significant intercept (<1.3g/t Au)
ROSUG442D	613972	6390779	-170	3	242	209.6	160.1	164	3.9	12.2
incl							162	163.2	1.2	25.4
ROSUG443D	613966	6390770	-144	-14	240	196	147.9	150	2.1	3.1
and							164.2	172.4	8.2	1.32
incl							165	166	1	3.03
ROSUG444D	613968	6390778	-142	9	236	199.95	No significant intercept (<1.3g/t Au)
ROSUG445D	613968	6390778	-143	-2	237	200.6	174.9	184.6	9.7	2.48
ROSUG446D	613966	6390770	-144	-10	237	191.1	161.3	167	5.7	2.17
incl							161.3	163	1.7	4.44
and							174	179	5	2.37
ROSUG447D	613966	6390770	-144	-18	236	212.7	162.3	169.7	7.4	1.54
incl							166.3	167.6	1.3	3.48
and							183	184.1	1.1	2.15
and							186	187	1	1.43
and							190.2	191.3	1.1	2.08
and							200	201.2	1.2	5.79
ROSUG458D	614085	6390770	-171	-26	261	366	276.4	292.4	16	1.67
incl							288.3	292.4	4.1	4.86
and							304	309	5	1.59
and							316	321	5	3.19
and							328	333.1	5.1	2.82
ROSUG461D	614085	6390770	-171	-26	251	370.6	335.3	336	0.7	1.42
ROSUG492D	614082	6390761	-13	28	285	226.9	204.8	207	2.2	1.47
and							220	223	3	5.45
incl							221.1	222	0.9	11.5
ROSUG496D	614082	6390761	-14	19	273	231	193	193.6	0.6	1.5
and							201.7	204.7	3	1.46
and							214.8	218	3.2	2.02
ROSUG499D	614084	6390748	-14	27	275	240	201	217	16	1.63
ROSUG560D	613969	6390780	-143	-2	304	165	No significant intercept (<1.3g/t Au)
ROSUG561D	613972	6390782	-170	-3	302	140.8	126	131	5	1.6
incl							126	127.1	1.1	3.78
and							135	135.9	0.9	2.21
ROSUG562D	613972	6390781	-170	-15	301	158.7	134.5	137.3	2.8	1.31
and							144.6	147.9	3.3	2.07
ROSUG563D	613969	6390780	-143	-8	293	152.9	116	116.4	0.4	2.57
and							120.2	124	3.8	1.89
and							132.3	133.5	1.2	1.32
ROSUG564D	613972	6390781	-170	-10	292	152.5	119	133	14	2.19	Western MZD
incl							130.7	133	2.3	5.73
and							140.2	143	2.8	3.94
ROSUG565D	613966	6390772	-144	-25	293	188.8	119.4	133.2	13.8	2.3
incl							119.4	121	1.6	9.5
and							141.6	143	1.4	4.45
ROSUG567D	613968	6390779	-143	-2	286	146.7	120	121	1	1.8
and							132	134	2	1.63
ROSUG568D	613972	6390781	-170	-4	285	149.8	113.1	120.6	7.5	1.99
ROSUG569D	613966	6390772	-144	-23	286	182.7	114	119	5	1.39
and							123.2	124	0.8	1.81
and							126	132	6	1.46
and							139.1	140.2	1.1	1.99
ROSUG572D	613969	6390780	-142	4	277	146	109	121.4	12.4	3
incl							115.6	116.3	0.7	30.6
and							131.3	132	0.7	3.22
and							134.8	137.8	3	1.69
ROSUG573D	613969	6390779	-143	-8	277	153	121.5	125.6	4.1	2.95
ROSUG574D	613966	6390772	-144	-19	276	161.8	111.3	112.4	1.1	1.94
ROSUG577D	613968	6390779	-143	-2	269	158.8	110.5	112	1.5	2.7
and							116.8	120	3.2	3.06
and							123.7	126.6	2.9	3.51
ROSUG578D	613972	6390780	-170	-3	269	155.8	115	120	5	4.16
incl							116.9	117.8	0.9	9.79
ROSUG579D	613966	6390771	-144	-24	265	177	109.7	111.1	1.4	1.91
and							115	116.1	1.1	2.03
and							118.5	120.2	1.7	2.92
and							162.1	163.1	1	3.4
ROSUG581D	613969	6390779	-142	4	260	163.6	119.7	120.7	1	2.26
and							123.3	124.6	1.3	3.26
and							129.9	130.8	0.9	1.42
and							133.3	135.7	2.4	1.3
and							146.7	147.5	0.8	1.43
ROSUG582D	613972	6390780	-169	3	260	168	120.3	121.1	0.8	1.39
and							128.5	136	7.5	2.04
ROSUG583D	613966	6390771	-144	-16	260	164.8	117.9	122	4.1	4.74
incl							119.2	119.7	0.5	13.3
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