Blue Sky Uranium Reports Detailed Modelling of Higher-Grade Domain Demonstrating Continuity in the Core Zone of the Ivana Deposit, Amarillo Grande Project, Argentina

Rhea-AI Summary

Blue Sky Uranium (OTCQB: BKUCF) reported detailed geological modelling of a newly accessed higher-grade domain within and adjacent to the core of the Ivana deposit at Amarillo Grande, Argentina, dated February 17, 2026. The domain footprints 505 m by 132 m, thickness ranges 1–17 m, and 27 holes were drilled.

The release notes ~66% of the domain was inside the 2024 block model and ~34% was outside; updated deposit-wide modelling and a new resource estimate are identified as next steps.

Positive

• Higher-grade domain footprint 505 m by 132 m
• 27 infill and expansion holes drilled in the area
• Thickness range documented at 1–17 metres
• ~66% of domain already included in 2024 block model

Negative

• ~34% of domain lies outside the 2024 block model

Vancouver, British Columbia--(Newsfile Corp. - February 17, 2026) - Blue Sky Uranium Corp. (TSXV: BSK) (FSE: MAL2) (OTCQB: BKUCF) ("Blue Sky" or the "Company") and Ivana Minerales S.A. ("IMSA"), the operating company for the joint-venture between Blue Sky and a subsidiary of Corporacion America Group, ("COAM") are pleased to provide details on the new area of higher-grade uranium mineralization within and immediately adjacent to the core of the Ivana Uranium Deposit at the Amarillo Grande Project in Rio Negro Province, Argentina. This modelling was based on drilling data previously partially reported for the 2025 infill and expansion drill program (see January 12, 2026 news release). The new modelling focusses on an area in the southern core and flank of the Ivana deposit that was not adequately drill tested prior to the 2025 program due to access limitations. The newly-modelled higher-grade domain has a 505 metre by 132 metre footprint and ranges from 1 and 17metres thick. A total of 27 holes were drilled in the area (see Figure 1). Approximately 66% of this domain was included in the block model from the 2024 mineral resource estimate and 34% is outside of it.

Nikolaos Cacos, Blue Sky President & CEO commented, "Modelling of this higher-grade area within and adjacent to the core of the Ivana uranium/vanadium deposit gives us the opportunity to potentially add significant incremental pounds of uranium in future resource estimations. Importantly, this area is an extension of the core zone of the deposit, which our 2024 Preliminary Economic Assessment indicated would be the starting area for potential mining. This expansion of the core zone may therefore also impact potential economics of the Ivana deposit during a future prefeasibility assessment".

Figure 1. Ivana Deposit Grade-Thickness Model with Drill Holes Contributing to New Higher Grade Zone.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/12078/283925_0d921dbd64be3ac2_001full.jpg

Geological modeling, illustrated in the cross section shown in Figure 2, demonstrates the continuity of the core zone mineralization (ending with drill hole AGI-296 in the section) into this newly accessed area (starting with drill hole AGI-296 in the section). The 3D visualization in Figure 3 highlights the spatial relationship between the previously defined PEA 2024 core lower zone wireframe and the newly modelled higher-grade within and adjacent to it.

Figure 2. Section A-A' Demonstrating New Higher Grade Drill Results at Ivana Deposit

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/12078/283925_0d921dbd64be3ac2_002full.jpg

Figure 3. Oblique 3-d Section Demonstrating New Higher Grade Area at Ivana Deposit

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/12078/283925_0d921dbd64be3ac2_003full.jpg

The holes and intercepts considered for this assessment are presented in Table 1 below. Selected intercepts for all of these holes were previously reported in the January 12, 2026 news release; the intercepts reported in Table 1 below have been selected in most cases using a lower cutoff and in most cases, therefore, are longer than the ones reported in the January 12, 2026 news release. The completion of an updated geological model for the entire deposit incorporating the results of the recent infill drill program will be a next key step for moving the project forward towards a new resource estimation and prefeasibility-level studies.

Table 1. Drill Holes and Intervals Considered for Assessment of Higher Grade Zone

HOLE_ID	Easting  (m)	Northing  (m)	End of Hole (m)	From  (m)	To (m)	Interval  (m)	U3O8 (ppm)	V (ppm)
AGI-1157	3486986	5524414	92.46	5	18	13	943	191
AGI-1159	3486852	5524457	92.48	4	17	13	922	76
AGI-1160	3486784	5524471	92.71	5	18	13	787	143
AGI-1163	3486803	5524541	92.54	4	19	15	754	97
AGI-1125	3486600	5524600	92.48	4	18	14	541	75
AGI-1161	3486717	5524494	92.47	6	21	15	504	95
AGI-1162	3486735	5524561	92.57	6	19	13	501	87
AGI-1124	3486532	5524619	92.57	4	13	9	404	107
AGI-1118	3486653	5524513	92.47	5	18	13	394	98
AGI-1164	3486871	5524522	92.51	4	21	17	359	120
AGI-1158	3486919	5524435	92.49	5	16	11	318	109
AGI-1127	3486620	5524668	92.77	10	19	9	288	45
AGI-1150	3486554	5524676	92.68	9	19	10	287	76
AGI-1126	3486642	5524613	92.55	5	18	13	257	59
AGI-1152	3486635	5524442	92.52	7	18	11	236	71
AGI-1156	3486969	5524348	92.51	4	8	4	164	221
AGI-1119	3486582	5524531	92.48	4	14	10	162	83
AGI-1151	3486486	5524700	92.63	9	12	3	148	55
AGI-1117	3486699	5524425	92.42	6	14	8	119	65
AGI-1122	3486395	5524660	92.76	5	12	7	87	130
AGI-1155	3486905	5524360	92.61	3	6	3	61	161
AGI-1153	3486766	5524405	92.63	5	6	1	61	74
AGI-1154	3486834	5524390	92.67	6	8	2	59	84
AGI-1115	3486492	5524482	92.75	4	6	2	49	109
AGI-1114	3486424	5524502	92.86	5	6	1	48	257
AGI-1116	3486564	5524462	92.67	4	8	4	47	87
AGI-1128	3486552	5524687	92.72	4	8	4	36	110
Note: All holes were vertical, and the reported intervals are believed to represent true thickness.

 

Methodology and QA/QC

The drilling program was carried out by Patagonia Drilling using a FlexiROC D65 drill rig from Atlas Copco, an ore-control track-mounted rig adapted to reverse circulation with triple cyclone to reduce the dust loss during sampling and automatic sampling.

Samples were collected every metre and sent to ALS in Mendoza, Argentina for preparation by drying, crushing to 70% <2mm, riffle splitter 250g and pulverize to 85% <75 µm. Pulps were sent to ALS in Lima, Peru for analysis of multi-elements ultra-trace method combining four acid digestion with Inductively Coupled Plasma ("ICP") instrumentation. Digestion is performed on 0.25g of sample to quantitatively dissolve most geological materials. Analytical analysis is performed with combinations of ICP-AES (Atomic Emission Spectrometry) & ICP-MS (Mass Spectrometry). Approximately every 10th sample, blank, duplicate, or standard samples were inserted into the sample sequence for quality assurance/quality control ("QA/QC") purposes, summing 579 QAQC samples included at entire program (10.5%). The internal assessment of the QA/QC data for the infill program determined that the analytical results reported herein are within standard industry limits.

Qualified Persons

The technical contents of this news release have been reviewed and approved by Mr. Ariel Testi, CPG, who works for the Company and is a Qualified Person as defined in National Instrument 43-101.

About Ivana Minerales S.A.

Ivana Minerales S.A. is the operating company for the joint-venture between Blue Sky and its partner Abatare Spain, S.L.U. to advance the Ivana Uranium-Vanadium deposit in Rio Negro Province of Argentina. The activities of JVCO are subject to the earn-in transaction (the "Agreement") in which COAM will fund cumulative expenditures of US$35 million to acquire a 49.9% indirect equity interest in the Ivana deposit, and then has the further right to earn up to an 80% equity interest in JVCO by completion of a feasibility study and funding the costs and expenditures up to US$160,000,000 to develop and construct the project to commercial production, subject to the terms and conditions in the Agreement. JVCO also has a Call Option to acquire a 100% interest in all or part of certain exploration targets owned by Blue Sky's 100% held subsidiary, subject to certain conditions. For additional details, please refer to the News Release dated February 27, 2025, as well as the Company's latest Financial Statements & MD&A available at blueskyuranium.com.

About Blue Sky Uranium Corp.

Blue Sky Uranium Corp. is a leader in uranium discovery in Argentina. The Company's objective is to deliver exceptional returns to shareholders by rapidly advancing a portfolio of uranium deposits into low-cost producers, while respecting the environment, the communities, and the cultures in all the areas in which we work. Blue Sky's flagship Amarillo Grande Project was an in-house discovery of a new district that has the potential to be both a leading domestic supplier of uranium to the growing Argentine market and a new international market supplier. The Company's Corcovo project has potential to host an in-situ recovery ("ISR") uranium deposit. The Company is a member of the Grosso Group, a resource management group that has pioneered exploration in Argentina since 1993.

ON BEHALF OF THE BOARD

"Nikolaos Cacos"
______________________________________
Nikolaos Cacos, President, CEO and Director
For further information please contact:
Corporate Communications
Tel: 1-604-687-1828
Toll-Free: 1-800-901-0058
Email: info@blueskyuranium.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

This news release may contain forward-looking statements and forward-looking information (collectively, the "forward-looking statements") within the meaning of applicable securities laws. Forward-looking statements address future events and conditions and therefore involve inherent risks and uncertainties. Any statements that are contained in this press release that are not statements of historical fact may be deemed to be forward-looking statements. Forward-looking statements are often identified by terms such as "may", "should", "anticipate", "will", "estimates", "believes", "intends" "expects" and similar expressions which are intended to identify forward-looking statements. More particularly and without limitation, this press release contains forward-looking statements that, other than statements of historical fact, address activities, events or developments the Company believes, expects or anticipates will or may occur in the future, including, without limitation, the opportunity to potentially add significant incremental pounds of uranium in future resource estimations, expansion of the core zone may therefore also impact potential economics of the Ivana deposit during a future prefeasibility assessment, statements about the Company's planned drilling campaigns, its objectives and the potential mineral content of its projects. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.

Forward-looking statements are subject to a number of risks and uncertainties that may cause the actual results of the Company to differ materially from those discussed in the forward-looking statements and, even if such actual results are realized or substantially realized, there can be no assurance that they will have the expected consequences to, or effects on, the Company. Factors that could cause actual results or events to differ materially from current expectations include, among other things: uncertainty relating to mineral resources; risks related to heavy metal and transition metal price fluctuations, particularly uranium and vanadium; risks relating to the dependence of the Company on key management personnel and outside parties; the potential impact of global pandemics; risks and uncertainties related to governmental regulation and the ability to obtain, amend, or maintain licenses, permits, or surface rights; risks associated with technical difficulties in connection with mining activities; and the possibility that future exploration, development or mining results will not be consistent with the Company's expectations, including in respect of the Company's planned exploration program described in this news release. Actual results may differ materially from those currently anticipated in such statements. Readers are encouraged to refer to the Company's public disclosure documents for a more detailed discussion of factors that may impact expected future results. The forward-looking statements contained in this press release are made as of the date of this press release, and the Company does not undertake any obligation to update publicly or to revise any of the included forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by securities law.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/283925

FAQ

What did Blue Sky Uranium (BKUCF) announce on February 17, 2026 about Ivana deposit modelling?

They announced detailed modelling of a newly accessed higher-grade domain within Ivana's core on February 17, 2026. According to the company, the domain measures 505 by 132 metres, ranges 1–17 m thick, and was defined using results from 27 drill holes.

How large and thick is the newly modelled higher-grade zone at Ivana (BKUCF)?

The higher-grade domain spans about 505 by 132 metres and is 1–17 metres thick. According to the company, these dimensions come from geological modelling of 27 vertical drill holes completed during the 2025 program.

How much of the new Ivana domain is already included in the 2024 resource model for BKUCF?

About 66% of the newly-modelled higher-grade domain was included in the 2024 block model. According to the company, the remaining ~34% lies outside the prior model and will be integrated in updated modelling.

What drilling and QA/QC methods supported the Ivana higher-grade domain for BKUCF?

Drilling used a FlexiROC D65 reverse-circulation rig with metre sampling; pulps were analyzed by ALS in Mendoza and Lima. According to the company, ~10.5% QA/QC samples (579) were inserted and results met industry limits.

What are the next technical steps for the Ivana deposit after the February 17, 2026 modelling update?

The company plans to complete an updated geological model for the entire deposit and pursue a new resource estimate and prefeasibility-level studies. According to the company, incorporating recent infill results is the next key step.