Sanu Gold Reports Above 90% Average Gold Recovery in Initial Metallurgical Test Results from Daina and Diguifara Properties in Guinea, West Africa

High cyanide-leach gold recoveries from Daina and Diguifara support Sanu Gold’s decision to advance to more detailed metallurgical testwork.

Rhea-AI Summary

Sanu Gold (SNGCF) reported initial metallurgical test results showing high cyanide-leach gold recoveries from drill samples at its Daina and Diguifara properties in Guinea.

Preliminary cyanide leach tests on 136 selected samples (135 valid) returned arithmetic mean calculated gold recoveries of 94.0% from 45 samples at Daina and 91.2% from 90 valid samples at Diguifara. Across calculated head-grade ranges, Daina recoveries were 94.6% (<0.25 g/t), 94.6% (0.25–0.50 g/t) and 93.2% (>0.50 g/t), while Diguifara returned 88.2%, 92.8% and 94.6% respectively. By weathering category, recoveries ranged from 93.8% to 94.2% at Daina and 90.1% to 92.3% at Diguifara, including fresh rock. The company noted these screening results indicate high proportions of cyanide-soluble gold and are comparable in magnitude to prior Bantabaye tests, and will be followed by more detailed metallurgical work using representative composite samples.

Positive

• Daina mean calculated recovery 94.0% from 45 drill samples
• Diguifara mean calculated recovery 91.2% from 90 valid drill samples
• High recoveries across Daina oxidation categories at 93.8%–94.2%
• High recoveries across Diguifara oxidation categories at 90.1%–92.3%, including fresh rock
• Recoveries across head-grade bands up to 94.6% at both projects
• Company has completed about 5,200 m of RC drilling across Daina, Bantabaye and Diguifara since May 20, 2026

Negative

• Metallurgical results are preliminary screening and do not provide economic recovery or process-design data

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Vancouver, British Columbia--(Newsfile Corp. - September 22, 2026) - Sanu Gold Corp. (CSE: SANU) (OTCQB: SNGCF) ("Sanu Gold" or the "Company") is pleased to announce positive metallurgical test results for samples collected from the Company's Daina and Diguifara gold exploration properties ("Daina" and "Diguifara") in Guinea, West Africa.

Highlights

• Initial metallurgical testwork was undertaken on 136 selected drill samples from the Daina and Diguifara properties, encompassing a broad range of gold grades.

• The testwork returned recoveries of:

  • 91% average gold recovery from 91 samples at Diguifara; and

  • 94% average gold recovery from 45 samples at Daina.

• At Daina, recoveries ranged from 93.2% to 94.6% across the three calculated head-grade ranges tested. At Diguifara, the corresponding averages ranged from 88.2% to 94.6%.

• Recoveries across the oxide, transition and fresh-rock categories ranged from 93.8% to 94.2% at Daina and 90.1% to 92.3% at Diguifara.

• The results are broadly comparable in magnitude to the Company's previous initial cyanide leach results at Bantabaye, which returned average gold recoveries of 92% to 93%.

• These preliminary results indicate a high proportion of cyanide-soluble gold in the selected samples and support further metallurgical testwork.

• These preliminary screening results support more detailed metallurgical testwork using representative composite samples.

Martin Pawlitschek, President and CEO of Sanu Gold, commented: "These initial cyanide leach results are encouraging, with average gold recoveries of 91% at Diguifara and 94% at Daina. High calculated recoveries were observed across the weathering categories and calculated head-grade ranges tested. At Daina, recoveries ranged from 93% to 95% across the tested grade bands. At Diguifara, recoveries ranged from 88% in samples with calculated head grades below 0.25 g/t gold to 95% in samples above 0.50 g/t gold.

The results are broadly comparable in magnitude to our previous initial cyanide leach testwork at Bantabaye, although the programs used different analytical protocols. The next stage will use representative composite samples to evaluate leach kinetics, reagent consumption, grind response and potential recoveries under defined processing conditions."

Program Summary

The primary objective of the metallurgical testwork was to provide an initial assessment of the cyanide-solubility response of selected mineralized samples from Daina and Diguifara (Figure 1).

Figure 1: Daina and Diguifara Project Locations, Guinea, West Africa: Target Areas in red circles.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8941/315370_6a70f665b4e759c4_001full.jpg

Preliminary cyanide leach tests were completed on 136 selected drill samples from Daina and Diguifara. All 45 samples submitted from Daina produced valid results. At Diguifara, 91 samples were submitted, of which one was excluded because of an invalid residue result, leaving 90 valid results. Arithmetic mean calculated gold recovery was 94.0% at Daina and 91.2% at Diguifara.

The samples cover a range of calculated head grades and include oxide, transition and fresh material. The Diguifara samples comprise principally greywacke and shale, while the Daina samples include sandstone, shale and felsic intrusive material. The testwork returned average calculated gold recoveries of approximately 91% at Diguifara and 94% at Daina (Table 1).

Table 1. Summary of Initial Cyanide Leach Testwork at Daina and Diguifara

Property	Samples submitted	Valid recoveries	Sample material	Arithmetic mean calculated gold recovery
Daina	45	45	RC, AC and DD samples	94.0%
Diguifara	91	90	RC and AC samples	91.2%
Total	136	135

 

The cyanide leach response remained high across the calculated head-grade ranges tested (Table 2). At Daina, arithmetic mean calculated recoveries were 94.6%, 94.6% and 93.2% for samples with calculated head grades below 0.25 g/t gold, from 0.25 to 0.50 g/t gold, and above 0.50 g/t gold, respectively. At Diguifara, the corresponding recoveries were 88.2%, 92.8% and 94.6%. These grade bands are descriptive sample groupings and should not be interpreted as demonstrating a causal relationship between head grade and recovery.

Table 2. Arithmetic Mean Calculated Gold Recovery by Calculated Head Grade

Project	Calculated head-grade range (g/t Gold)	Valid samples	Arithmetic mean calculated recovery
Daina	<0.25	18	94.6%
Daina	0.25-0.50	8	94.6%
Daina	>0.50	19	93.2%
Diguifara	<0.25	37	88.2%
Diguifara	0.25-0.50	35	92.8%
Diguifara	>0.50	18	94.6%
Notes: Calculated head grade is the sum of cyanide-soluble gold and residual gold. Reported recoveries are arithmetic means of the individual sample recoveries within each band. Grade bands are descriptive only and are not economic cut-offs. One Diguifara sample with an invalid residue result was excluded.

 

Arithmetic mean calculated recoveries remained high across the tested weathering categories (Table 3), ranging from 93.8% to 94.2% at Daina and from 90.1% to 92.3% at Diguifara. Importantly, high recoveries were maintained in the tested fresh-rock samples at both projects.

Table 3. Arithmetic Mean Calculated Gold Recovery by Oxidation Category

Project	Weathering category		Valid samples	Arithmetic mean calculated recovery
Daina	Oxide		14	93.9%
Daina	Transition		13	93.8%
Daina	Fresh rock		18	94.2%
Diguifara	Oxide		37	90.1%
Diguifara	Transition		20	91.6%
Diguifara	Fresh rock		33	92.3%
Notes: The average calculated gold recoveries from cyanide leach testing across the oxidation categories are high, indicating that ore from all oxidation categories at both Diguifara and Daina is amenable to conventional cyanide leaching.

 

These preliminary screening results show high proportions of cyanide-soluble gold in the tested samples across the weathering categories. They do not constitute process-design or economic-recovery testwork.

Geology of the Tested Prospects

The tested Daina samples were collected from the Daina 1 South, Daina 2, Daina 2 South and Salat prospects, which extend along several trends up to 9 kilometres long. At Daina, mineralization occurs in structurally deformed turbiditic sedimentary rocks and altered felsic intrusive rocks (Salat) and is associated with quartz veins and stockworks, carbonate-hematite alteration, and fine disseminated pyrite, locally with arsenopyrite.

The tested Diguifara samples were collected from the DIG 1, DIG 2 and DIG 3 prospects, which extend along an approximately seven-kilometre trend. At Diguifara, mineralization occurs in volcaniclastic and sedimentary rocks along northwest-southeast shear zones and northeast-trending faults, commonly near greywacke-shale contacts. Mineralization is associated with quartz veins and stockworks, pyrite, arsenopyrite and propylitic alteration.

Drilling Operations Update

Since the Company's May 20, 2026 exploration update, Sanu has completed approximately 5,200 m of RC drilling across Daina, Bantabaye and Diguifara. At Daina, 41 Priority 1 RC holes totalling 4,081 m were completed through August 31, 2026 across Daina 3, Daina 1 North and Daina 2, followed by a further 104 m hole at Daina 1 North, bringing completed drilling to 42 holes totalling 4,185 m, with drilling ongoing. At Bantabaye, seven RC holes totalling 816 m were completed at Bantabaye South prior to the wet season and drilling is expected to recommence in the coming weeks. At Diguifara, RC drilling recently recommenced at Target 5, with three holes totalling 201 m already completed.

Next Steps

Future metallurgical testwork is planned to include more detailed characterization of mineralized material from Daina and Diguifara. This work is expected to include comminution (grindability) and cyanidation/leaching (bottle roll) testing to provide initial indications of crushing and milling requirements, gold leaching kinetics and key reagent consumption. Representative composite samples will be selected to evaluate variability between the principal geological and weathering domains identified at each property.

Testwork Procedures

Samples were submitted to MSALABS for Bulk Leach Extractable Gold (BLEG) analysis using method Au-CN04. The method uses a 1-kilogram sample for cyanide leaching, with gold in the leach solution determined by atomic absorption spectroscopy ("AAS") and the remaining gold in the leach residue determined by fire assay. Gold recovery for each sample was calculated based on the proportion of cyanide-soluble gold relative to the combined cyanide-soluble gold and gold remaining in the leach residue: calculated by gold recovery (%) = cyanide-soluble gold / (cyanide-Soluble gold + Residue gold) × 100.

Individual calculated gold recovery was determined as cyanide-soluble gold divided by the sum of cyanide-soluble gold and residual gold, multiplied by 100. Arithmetic mean calculated gold recoveries represent the simple arithmetic mean of the individual calculated recoveries for all valid samples within the relevant sample population.

For calculation purposes, residue results reported below the analytical detection limit of 0.005 g/t gold were assigned a value of 0.0025 g/t gold, representing one-half of the detection limit.

The testwork represents an initial assessment of cyanide leach response and does not indicate process design or economic recoveries. More detailed metallurgical testwork will be required to determine optimized process conditions and expected gold recovery under potential future processing scenarios.

Quality Assurance / Quality Control ("QA/QC")

Sample selection and shipment were undertaken under the supervision of the Company's geological team. The analytical batches included certified reference materials, blanks and duplicate or check analyses as part of the laboratory QA/QC program. Analytical results and associated QA/QC data were reviewed as part of the Company's data verification procedures. MSALABS is an internationally recognized commercial laboratory and is independent of Sanu Gold.

Qualified Person

The scientific and technical information contained in this press release has been reviewed and approved by Serigne Dieng, Ph.D., M.Sc., a Member (MAIG) of the Australian Institute of Geoscientists (AIG), Exploration Manager of the Company and a qualified person within the meaning of National Instrument 43-101 - Standards of Disclosure for Mineral Projects.

About Sanu Gold Corp.

Located within the world-class Siguiri Basin, host to several operating mines, Sanu Gold is exploring three high-quality gold exploration properties in Guinea targeting multi-million-ounce gold discoveries. The Company has defined kilometre-scale gold-bearing structures on each of the properties with multiple high-value drill targets. Sanu Gold is operated by a highly experienced team with successful records of discovery, resource development and mine permitting.

Martin Pawlitschek
President & CEO, Sanu Gold Corp

For further information regarding Sanu Gold, please visit the Company's website at www.sanugoldcorp.com or contact:

John McClintock +44 7718 576 395
johnm@sanugoldcorp.com

Neither the Canadian Securities Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.

918 - 1030 West Georgia Street | Vancouver, British Columbia | Canada | V6E 2Y3

www.sanugoldcorp.com

Cautionary Note Regarding Forward-Looking Statements

This news release contains certain statements that may be deemed "forward-looking statements" with respect to the Company within the meaning of applicable securities laws. Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes", "intends", "estimates", "projects", "potential", "indicates", "opportunity", "possible" and similar expressions, or that events or conditions "will", "would", "may", "could" or "should" occur. Although Sanu believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, are subject to risks and uncertainties, and actual results or realities may differ materially from those in the forward-looking statements. Such material risks and uncertainties include, but are not limited to, the Company's plans for exploration on its properties and ability to execute on plans, including the ability for preliminary results to accurately predict beneficial future exploration plans, ability to raise sufficient capital to fund its obligations under its property agreements going forward, ability to maintain its material property agreements, mineral tenures and concessions in good standing, to explore and develop its projects; changes in economic conditions or financial markets; the inherent hazards associated with mineral exploration and mining operations, future prices of gold and other metals, changes in general economic conditions and local risks in the jurisdiction (Guinea) in which it operates, accuracy of mineral resource and reserve estimates, the potential for new discoveries, the ability of the Company to obtain the necessary permits and consents required to explore, drill and develop the projects and if obtained, to obtain such permits and consents in a timely fashion relative to the Company's plans and business objectives for the projects; the general ability of the Company to monetize its mineral resources; and changes in environmental and other laws or regulations that could have an impact on the Company's operations, compliance with environmental laws and regulations, dependence on key management personnel and general competition in the mining industry. Forward-looking statements are based on the reasonable beliefs, estimates and opinions of the Company's management on the date the statements are made. Except as required by law, the Company undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.

 

Appendix 1 - Data

Area	Hole	From (m)	To (m)	Length (m)	Oxidation zone	Lab Wt	BLEG Au (g/t)	Tail FA Au (g/t)	Total Au (g/t)	Recovery (%)
Daina 1 South	DAI-RC-090	60	62	1	Transition Zone	2.24	0.118	0.022	0.140	84.29
Daina 1 South	DAI-RC-089	74	76	1	Transition Zone	2.06	0.138	0.0025	0.141	98.22
Daina 1 South	DAI-AC-092	34	36	1	Oxidized Zone	2.28	0.149	0.0025	0.152	98.35
Daina 1 South	DAI-DD-004	97	96	1	Fresh Rock	2.06	0.185	0.0025	0.188	98.67
Daina 1 South	DAI-RC-102	97	98	1	Fresh Rock	3.41	0.158	0.037	0.195	81.03
Daina 1 South	DAI-RC-099	20	21	1	Oxidized Zone	3.72	0.194	0.0025	0.197	98.73
Daina 1 South	DAI-RC-090	62	64	1	Transition Zone	1.85	0.423	0.01	0.433	97.69
Daina 1 South	DAI-RC-090	42	44	1	Oxidized Zone	2.51	0.404	0.056	0.460	87.83
Daina 1 South	DAI-DD-004	157	158	1	Fresh Rock	1.54	0.56	0.101	0.661	84.72
Daina 1 South	DAI-RC-097	47	48	1	Oxidized Zone	3.18	0.936	0.031	0.967	96.79
Daina 1 South	DAI-RC-089	70	72	1	Transition Zone	2.12	0.891	0.125	1.016	87.70
Daina 1 South	DAI-RC-090	64	66	1	Transition Zone	1.63	2.629	0.0025	2.632	99.90
Daina 1 South	DAI-DD-004	158	159	1	Fresh Rock	1.65	2.578	0.201	2.779	92.77
Daina 1 South	DAI-AC-092	44	46	1	Oxidized Zone	1.85	5.001	0.379	5.380	92.96
Daina 1 South	DAI-DD-004	175	176	1	Fresh Rock	1.5	5.166	0.858	6.024	85.76
Daina 2 Main	DAI-DD-007	135	136	1	Fresh Rock	2.01	0.086	0.005	0.091	94.51
Daina 2 Main	DAI-DD-007	110	111	1	Fresh Rock	1.47	0.136	0.009	0.145	93.79
Daina 2 Main	DAI-DD-007	136	137	1	Fresh Rock	1.92	0.256	0.007	0.263	97.34
Daina 2 Main	DAI-DD-008	84	85	1	Transition Zone	1.87	0.528	0.018	0.546	96.70
Daina 2 Main	DAI-DD-007	141	142	1	Fresh Rock	1.85	0.531	0.021	0.552	96.20
Daina 2 Main	DAI-DD-008	85	86	1	Transition Zone	2.06	0.783	0.062	0.845	92.66
Daina 2 South	DAI-RC-061	18	19	1	Oxidized Zone	1.57	0.117	0.0025	0.120	97.91
Daina 2 South	DAI-RC-068	102	103	1	Fresh Rock	1.5	0.156	0.0025	0.159	98.42
Daina 2 South	DAI-RC-061	44	45	1	Oxidized Zone	1.54	0.143	0.016	0.159	89.94
Daina 2 South	DAI-RC-061	74	75	1	Fresh Rock	1.8	0.182	0.0025	0.185	98.64
Daina 2 South	DAI-RC-061	62	63	1	Transition Zone	1.38	0.371	0.0025	0.374	99.33
Daina 2 South	DAI-RC-061	64	65	1	Transition Zone	1.64	0.901	0.103	1.004	89.74
Daina 2 South	DAI-RC-067	35	36	1	Oxidized Zone	1.36	1.049	0.11	1.159	90.51
Daina 2 South	DAI-DD-003	16	17	1	Oxidized Zone	2.33	0.036	0.0025	0.039	93.51
Daina 2 South	DAI-AC-137	46	48	1	Transition Zone	3.16	0.254	0.036	0.290	87.59
Daina 2 South	DAI-DD-003	157	158	1	Fresh Rock	1.63	0.541	0.009	0.550	98.36
Daina 2 South	DAI-DD-003	179	180	1	Fresh Rock	1.67	2.235	0.05	2.285	97.81
Daina 2 South	DAI-AC-116	22	24	1	Oxidized Zone	3.32	7.106	0.642	7.748	91.71
Salat	DAI-RC-076	56	58	1	Transition Zone	1.19	0.031	0.0025	0.034	92.54
Salat	DAI-RC-095	48	50	1	Transition Zone	3.1	0.054	0.0025	0.057	95.58
Salat	DAI-RC-095	76	78	1	Fresh Rock	2.86	0.066	0.0025	0.069	96.35
Salat	DAI-RC-076	52	54	1	Transition Zone	1.25	0.112	0.0025	0.115	97.82
Salat	DAI-DD-005	18	19	1	Oxidized Zone	3.64	0.209	0.014	0.223	93.72
Salat	DAI-DD-006	210	211	1	Fresh Rock	1.5	0.24	0.012	0.252	95.24
Salat	DAI-RC-092	12	14	1	Oxidized Zone	2.66	0.315	0.0025	0.318	99.21
Salat	DAI-RC-078	40	42	1	Oxidized Zone	1.41	0.307	0.025	0.332	92.47
Salat	DAI-RC-078	134	136	1	Fresh Rock	1.56	0.604	0.0025	0.607	99.59
Salat	DAI-DD-005	186	187	1	Fresh Rock	2.07	0.718	0.046	0.764	93.98
Salat	DAI-RC-095	31	32	1	Oxidized Zone	2.51	2.14	0.203	2.343	91.34
Salat	DAI-DD-005	281	282	1	Fresh Rock	1.87	7.557	0.696	8.253	91.57
DIG-1	DIG-RC-001	30	32	1	Oxidized Zone	3.52	0.006	0.0025	0.0085	70.59
DIG-1	DIG-RC-003	64	66	1	Saprock	3.57	0.13	0.0025	0.1325	98.11
DIG-1	DIG-RC-004	120	122	1	Fresh Rocks	3.52	0.132	0.0025	0.1345	98.14
DIG-1	DIG-RC-001	56	58	1	Oxidized Zone	3.62	0.115	0.021	0.136	84.56
DIG-1	DIG-RC-022	76	78	1	Saprock	3.58	0.103	0.04	0.143	72.03
DIG-1	DIG-RC-003	122	124	1	Fresh Rocks	3.46	0.142	0.0025	0.1445	98.27
DIG-1	DIG-RC-003	16	18	1	Oxidized Zone	3.59	0.147	0.0025	0.1495	98.33
DIG-1	DIG-RC-003	4	6	1	Oxidized Zone	3.62	0.141	0.012	0.153	92.16
DIG-1	DIG-RC-002	28	30	1	Oxidized Zone	3.45	0.154	0.0025	0.1565	98.40
DIG-1	DIG-RC-001	50	52	1	Oxidized Zone	3.57	0.173	0.0025	0.1755	98.58
DIG-1	DIG-RC-004	72	74	1	Saprock	3.47	0.177	0.0025	0.1795	98.61
DIG-1	DIG-RC-003	56	58	1	Saprock	3.66	0.184	0.0025	0.1865	98.66
DIG-1	DIG-RC-004	26	28	1	Oxidized Zone	3.53	0.19	0.0025	0.1925	98.70
DIG-1	DIG-RC-022	80	82	1	Saprock	3.6	0.243	0.0025	0.2455	98.98
DIG-1	DIG-RC-005	38	40	1	Oxidized Zone	3.53	0.222	0.047	0.269	82.53
DIG-1	DIG-RC-002	20	22	1	Oxidized Zone	3.49	0.273	0.02	0.293	93.17
DIG-1	DIG-RC-004	94	96	1	Saprock	3.62	0.288	0.03	0.318	90.57
DIG-1	DIG-RC-022	4	6	1	Oxidized Zone	3.55	0.294	0.028	0.322	91.30
DIG-1	DIG-RC-002	52	54	1	Oxidized Zone	3.47	0.294	0.032	0.326	90.18
DIG-1	DIG-RC-003	78	80	1	Saprock	3.59	0.355	0.02	0.375	94.67
DIG-1	DIG-RC-009	66	68	1	Oxidized Zone	3.52	0.337	0.062	0.399	84.46
DIG-1	DIG-RC-004	38	40	1	Oxidized Zone	3.56	0.368	0.032	0.4	92.00
DIG-1	DIG-RC-004	156	158	1	Fresh Rocks	3.64	0.384	0.026	0.41	93.66
DIG-1	DIG-RC-004	140	142	1	Fresh Rocks	3.58	0.409	0.0025	0.4115	99.39
DIG-1	DIG-RC-002	68	70	1	Saprock	3.39	0.39	0.042	0.432	90.28
DIG-1	DIG-RC-004	98	100	1	Saprock	3.53	0.372	0.064	0.436	85.32
DIG-1	DIG-RC-001	60	62	1	Oxidized Zone	3.56	0.376	0.083	0.459	81.92
DIG-1	DIG-RC-003	104	106	1	Fresh Rocks	3.57	0.471	0.014	0.485	97.11
DIG-1	DIG-RC-003	113	114	1	Fresh Rocks	2.7	0.553	0.073	0.626	88.34
DIG-1	DIG-RC-009	46	48	1	Oxidized Zone	3.51	0.759	0.043	0.802	94.64
DIG-1	DIG-RC-004	154	156	1	Fresh Rocks	3.6	0.857	0.066	0.923	92.85
DIG-1	DIG-RC-009	96	98	1	Fresh Rocks	3.48	1.264	0.033	1.297	97.46
DIG-1	DIG-RC-009	114	116	1	Fresh Rocks	3.52	1.345	0.067	1.412	95.25
DIG-2	DIG-RC-011	16	18	1	Oxidized Zone	3.45	0.0025	0.0025	0.005
DIG-2	DIG-RC-010	58	60	1	Saprock	3.48	0.065	0.0025	0.0675	96.30
DIG-2	DIG-RC-013	8	10	1	Oxidized Zone	3.54	0.08	0.031	0.111	72.07
DIG-2	DIG-RC-011	40	42	1	Oxidized Zone	3.53	0.155	0.0025	0.1575	98.41
DIG-2	DIG-RC-011	38	40	1	Oxidized Zone	3.72	0.143	0.054	0.197	72.59
DIG-2	DIG-RC-012	10	12	1	Oxidized Zone	3.55	0.194	0.045	0.239	81.17
DIG-2	DIG-RC-010	4	6	1	Oxidized Zone	3.55	0.237	0.033	0.27	87.78
DIG-2	DIG-RC-011	44	46	1	Oxidized Zone	3.54	0.393	0.013	0.406	96.80
DIG-2	DIG-RC-012	74	76	1	Fresh Rocks	3.49	0.471	0.0025	0.4735	99.47
DIG-2	DIG-RC-011	36	38	1	Oxidized Zone	3.46	0.496	0.0025	0.4985	99.50
DIG-2	DIG-RC-011	82	84	1	Oxidized Zone	3.56	1.053	0.039	1.092	96.43
DIG-3	DIG-RC-017	110	112	1	Fresh Rocks	3.59	0.016	0.021	0.037	43.24
DIG-3	DIG-RC-017	50	52	1	Saprock	3.52	0.111	0.0025	0.1135	97.80
DIG-3	DIG-RC-018	62	64	1	Fresh Rocks	3.51	0.126	0.0025	0.1285	98.05
DIG-3	DIG-RC-018	46	48	1	Fresh Rocks	3.54	0.151	0.011	0.162	93.21
DIG-3	DIG-RC-017	66	68	1	Fresh Rocks	3.65	0.153	0.01	0.163	93.87
DIG-3	DIG-RC-018	98	100	1	Fresh Rocks	3.58	0.164	0.01	0.174	94.25
DIG-3	DIG-RC-006	76	78	1	Fresh Rocks	3.54	0.138	0.039	0.177	77.97
DIG-3	DIG-RC-006	88	90	1	Fresh Rocks	3.49	0.145	0.036	0.181	80.11
DIG-3	DIG-RC-018	28	30	1	Saprock	3.58	0.139	0.047	0.186	74.73
DIG-3	DIG-RC-007	78	80	1	Fresh Rocks	2.81	0.122	0.082	0.204	59.80
DIG-3	DIG-RC-008	46	48	1	Oxidized Zone	2.31	0.184	0.033	0.217	84.79
DIG-3	DIG-RC-007	98	100	1	Fresh Rocks	2.5	0.221	0.0025	0.2235	98.88
DIG-3	DIG-RC-008	40	42	1	Oxidized Zone	2.44	0.178	0.051	0.229	77.73
DIG-3	DIG-RC-008	14	16	1	Oxidized Zone	2.37	0.207	0.024	0.231	89.61
DIG-3	DIG-RC-007	64	66	1	Saprock	2.07	0.234	0.0025	0.2365	98.94
DIG-3	DIG-RC-008	30	32	1	Oxidized Zone	2.15	0.235	0.0025	0.2375	98.95
DIG-3	DIG-RC-017	72	74	1	Fresh Rocks	3.62	0.235	0.0025	0.2375	98.95
DIG-3	DIG-RC-007	60	62	1	Saprock	2.31	0.19	0.055	0.245	77.55
DIG-3	DIG-RC-017	88	90	1	Fresh Rocks	3.5	0.25	0.006	0.256	97.66
DIG-3	DIG-RC-006	108	110	1	Fresh Rocks	3.59	0.247	0.041	0.288	85.76
DIG-3	DIG-RC-017	48	50	1	Fresh Rocks	3.63	0.287	0.0025	0.2895	99.14
DIG-3	DIG-RC-007	84	86	1	Fresh Rocks	2.54	0.29	0.0025	0.2925	99.15
DIG-3	DIG-RC-008	8	10	1	Oxidized Zone	2.57	0.308	0.0025	0.3105	99.19
DIG-3	DIG-RC-007	54	56	1	Saprock	2.26	0.316	0.048	0.364	86.81
DIG-3	DIG-RC-006	92	94	1	Fresh Rocks	3.5	0.348	0.021	0.369	94.31
DIG-3	DIG-RC-008	38	40	1	Oxidized Zone	2.21	0.374	0.006	0.38	98.42
DIG-3	DIG-RC-018	26	28	1	Saprock	3.54	0.394	0.0025	0.3965	99.37
DIG-3	DIG-RC-017	60	62	1	Fresh Rocks	3.63	0.36	0.038	0.398	90.45
DIG-3	DIG-RC-007	52	54	1	Saprock	2.55	0.371	0.033	0.404	91.83
DIG-3	DIG-RC-008	28	30	1	Oxidized Zone	2.73	0.315	0.089	0.404	77.97
DIG-3	DIG-RC-006	78	80	1	Fresh Rocks	3.42	0.412	0.009	0.421	97.86
DIG-3	DIG-RC-008	42	44	1	Oxidized Zone	2.54	0.415	0.034	0.449	92.43
DIG-3	DIG-RC-018	48	50	1	Fresh Rocks	3.64	0.447	0.007	0.454	98.46
DIG-3	DIG-RC-008	20	22	1	Oxidized Zone	2.4	0.419	0.056	0.475	88.21
DIG-3	DIG-RC-018	102	104	1	Fresh Rocks	3.62	0.478	0.0025	0.4805	99.48
DIG-3	DIG-RC-008	36	38	1	Oxidized Zone	2.33	0.473	0.035	0.508	93.11
DIG-3	DIG-RC-007	58	60	1	Saprock	2.52	0.455	0.08	0.535	85.05
DIG-3	DIG-RC-008	26	28	1	Oxidized Zone	2.67	0.536	0.022	0.558	96.06
DIG-3	DIG-RC-007	70	72	1	Fresh Rocks	2.25	0.54	0.024	0.564	95.74
DIG-3	DIG-RC-007	28	30	1	Oxidized Zone	2.52	0.608	0.0025	0.6105	99.59
DIG-3	DIG RC 017	56	58	1	Saprock	3.64	0.622	0.0025	0.6245	99.60
DIG-3	DIG-RC-007	44	46	1	Saprock	2.22	0.604	0.025	0.629	96.03
DIG-3	DIG-RC-018	52	54	1	Fresh Rocks	3.59	0.645	0.0025	0.6475	99.61
DIG-3	DIG-RC-008	24	26	1	Oxidized Zone	2.53	0.647	0.096	0.743	87.08
DIG-3	DIG-RC-018	50	52	1	Fresh Rocks	3.64	0.72	0.038	0.758	94.99
DIG-3	DIG-RC-006	110	112	1	Fresh Rocks	3.59	0.721	0.038	0.759	94.99
DIG-3	DIG-RC-008	44	46	1	Oxidized Zone	2.34	0.754	0.032	0.786	95.93

 

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/315370

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many samples were included in the initial metallurgical testwork from Daina and Diguifara?

The program tested 136 selected drill samples in total. All 45 samples from Daina produced valid results. At Diguifara, 91 samples were submitted and one was excluded because of an invalid residue result, leaving 90 valid samples and 135 valid results overall.

How did gold recoveries vary by calculated head-grade range at Daina and Diguifara?

At Daina, arithmetic mean calculated recoveries were 94.6% for samples with calculated head grades below 0.25 g/t gold, 94.6% from 0.25–0.50 g/t, and 93.2% above 0.50 g/t. At Diguifara, recoveries by the same bands were 88.2%, 92.8% and 94.6% respectively. These grade bands are described as sample groupings and are not economic cut-offs.

What do the recoveries by oxidation/weathering category indicate for potential processing?

Arithmetic mean calculated recoveries by weathering category at Daina were 93.9% for oxide, 93.8% for transition and 94.2% for fresh rock. At Diguifara, recoveries were 90.1% for oxide, 91.6% for transition and 92.3% for fresh rock. The company stated that high recoveries across all oxidation categories indicate that ore from both properties is amenable to conventional cyanide leaching.

What are the planned next steps in metallurgical testing for Sanu Gold’s Guinea projects?

Future metallurgical work is expected to include more detailed characterization of mineralized material from Daina and Diguifara. Planned programs include comminution (grindability) and cyanidation/leaching (bottle roll) tests to give initial indications of crushing and milling requirements, gold leaching kinetics and key reagent consumption. Representative composite samples will be selected to evaluate variability between principal geological and weathering domains.

What drilling progress has Sanu Gold reported alongside the metallurgical results?

Since the May 20, 2026 exploration update, Sanu Gold has completed approximately 5,200 m of RC drilling across Daina, Bantabaye and Diguifara. At Daina, 41 Priority 1 RC holes totalling 4,081 m were completed through August 31, 2026, followed by another 104 m hole, for 42 holes and 4,185 m, with drilling ongoing. At Bantabaye, seven RC holes totalling 816 m were completed at Bantabaye South before the wet season, and drilling is expected to recommence in the coming weeks. At Diguifara, RC drilling has recently recommenced at Target 5, with three holes totalling 201 m completed.

Which analytical method and laboratory were used for the cyanide leach tests?

Samples were analyzed at MSALABS, an independent commercial laboratory, using Bulk Leach Extractable Gold (BLEG) method Au‑CN04. The procedure used 1‑kilogram samples for cyanide leaching, with gold in solution measured by atomic absorption spectroscopy and residual gold in the leach residue determined by fire assay. Calculated gold recovery for each sample was defined as cyanide‑soluble gold divided by the sum of cyanide‑soluble and residual gold, multiplied by 100.