Mr. Tim Crossley reports

ADYTON REPORTS 6.60G/T AU, 2.44% CU AND 39.8G/T AG WITHIN 164M @ 0.82G/T AUEQ INCLUDING 53M AT 1.60G/T AUEQ WITHIN 164M AT 0.82G/T AUEQ FROM THE NORTHEASTERN EXTENSION TARGET, FENI ISLAND

Adyton Resources Corp. has released positive expansionary drill results from its continuing exploration program at the 100-per-cent-owned Feni Island gold-copper project, located on the productive Lihir trend in Papua New Guinea. This announcement provides all the assay results for expansionary hole FDD017 (preliminary results were first reported on Feb. 18, 2026).

Hole FDD017 previously returned 53 metres at 1.29 grams per tonne gold (gold only) and now, incorporating newly released copper assays, reports as 53 metres at 1.60 g/t gold equivalent, representing an approximately 25-per-cent increase in reported grade. In addition, strong silver and molybdenum results further support the presence of a highly fertile epithermal-porphyry at Kabang.

Key highlights of drill hole FDD017:

• Final assays for hole FDD017 have delivered another greater-than-100-gram-metre intercept, further confirming strong gold-copper mineralization in the northeastern extension target:
• Hole FDD017 yielded:
  • 53 m at 1.29 g/t Au and 0.26 per cent Cu (1.60 g/t AuEq, from 151 m);
  • Within a broader interval of 164 m at 0.63 g/t Au and 0.15 per cent Cu (0.82 g/t AuEq for 134 gram-metres, from 36 m);
  • Including a higher-grade interval that returned five m at 3.6 g/t Au and 1.48 per cent Cu (5.63 g/t AuEq, from 198 m);
• In addition to gold and copper, FDD017 also reports significant silver and molybdenum, signalling strong system fertility for a large alkalic epithermal-porphyry system:
  • Five m at 22.3 g/t Ag (from 198 m) and six m at 275 parts per million Mo (from 295m, peak of 579 ppm Mo);
• These final assay results for hole FDD017 confirm the northeastern zone at Kabang is strongly mineralized and prospective for gold and copper and continues to expand this zone beyond the current resource model;
• Ground-based IP/MT (induced polarization/magnetotelluric) survey progressing well; looking to deploy within Q2 2026.

"FDD017 continues to exceed our expectations, delivering a meaningful uplift in grade with the inclusion of copper and highlighting the strength of the broader mineralized system at Feni. The increase to 1.60 g/t AuEq over 53 metres, combined with strong silver and molybdenum values, reinforces our view that Kabang represents a highly fertile and evolving epithermal-porphyry system. Importantly, this hole further confirms the scale and continuity of mineralization in the northeastern extension, which remains open and continues to grow beyond the current resource footprint," said Tim Crossley, chief executive officer.

Adyton is looking forward to receiving additional assays from nearby drill holes within this zone and updating the market accordingly.

Significant intercepts

Table 1 shows the significant intercepts for gold and copper assay results received to date (new assays in this release for FDD017 only).

Future catalysts and outlook

Adyton is well financed with $16.75-million in cash and cash equivalents, 100 per cent earmarked for the Feni Au-Cu project (plus general and administrative expenses). The company is executing a systematic exploration strategy to grow the MRE (mineral resource estimate) and discover new deposits. Coming results and milestones include:

• Pending assays:
  • NNE: FDD018, FDD020, FDD023, FDD025, FDD029;
  • SSW: FDD019, FDD021, FDD024, FDD026, FDD028;
• Continuing drilling: focused on expanding the MRE footprint at Kabang and testing new targets;
• Advanced geophysics: an approximately five-kilometre-by-five-kilometre ground-based IP and MT survey is being scoped to detect additional deposits on Feni Island and detect deeper prospective targets for drilling;
• Spectral mapping: deployment of pXRF (portable X-ray fluorescence) as well as spectral mineral mapping (Q1 2026) to generate a 3-D alteration model for precise vectoring toward the core of the mineralized system with potential high Au-Cu grades to target for drilling.

Fergusson Island progress update

EVIH, Adyton's 50/50 joint venture partner, continues to make good progress on the restart of the Wapolu Au mine. Key areas of significant progress include purchasing and shipping of long-lead items and processing plant components. The mineral resources authority has also set the date for the ML (mining licence) application warden hearing for May 21, 2026. It is expected that, subject to permitting, Wapolu could be in production in Q4 2026. Adyton does not have any capital expenditure requirements for the Wapolu mine; these are being provided by EVIH as part of the JV earn-in to the Fergusson projects.

Quality assurance/quality control

Adyton adheres to industry-recognized standards of best practice and QA/QC. Drill core samples were submitted in batches to Intertek Laboratory in Lae, which include field blanks, certified reference materials (CRMs) and staged duplicates. Samples were sealed, ensuring chain of custody. To date, all batches have passed QA/QC, and blanks and CRMs were within acceptable tolerance limits. All drill holes were drilled and sampled predominantly from PQ= and HQ-diameter drill core and, to a lesser extent, also NQ core. Core recovery is considered to be appropriate.

Qualified person

The scientific and technical information contained in this press release has been prepared, reviewed and approved by Dr. Chris Bowden, PhD, GCMEE, FAusIMM (CP), FSEG, chief operating officer and chief geologist of Adyton, who is a qualified person as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects.

About the Feni gold-copper project

The Feni project is 100 per cent owned by Adyton and is a key asset in Adyton's portfolio, located in a highly prospective region of Papua New Guinea on the Lihir Island chain known for world-class gold-copper deposits, including Lihir (owned and operated by Newmont). The company has confirmed significant gold-copper mineralization at Feni, with a focus on expanding its existing resource and identifying new high-grade targets.

About Adyton Resources Corp.

Adyton Resources is focused on advancing gold and copper projects in world-class mineral jurisdictions. The company holds a portfolio of highly prospective assets in Papua New Guinea, where it is actively working to expand its existing gold inferred and indicated mineral resources and build on recent high-grade gold and copper drill results at its 100-per-cent-owned Feni Island project.

Adyton's projects are located on the Pacific Ring of Fire, on accessible island settings that host several globally significant deposits, including the Lihir gold mine and Panguna copper-gold mine on Bougainville Island, both in close proximity to Feni, highlighting the district-scale potential of the company's land package.

Feni Island Au-Cu project

The Feni Island project currently has a mineral resource prepared in accordance with NI 43-101 dated Oct. 14, 2021, which has outlined an initial inferred mineral resource of 60.4 million tonnes at an average grade of 0.75 g/t Au, for contained gold of 1.46 million ounces, assuming a cut-off grade of 0.5 g/t Au. See the NI 43-101 technical report entitled "NI 43-101 Technical Report on the Feni Gold-Copper Property, New Ireland Province, Papua New Guinea" prepared for Adyton Resources by Mark Berry (MAIG), Simon Tear (MIGI, PGeo), Matthew White (MAIG) and Andy Thomas (MAIG), each an independent mining consultant and qualified person as defined in NI 43-101, available under Adyton's profile on SEDAR+. Mineral resources are not mineral reserves and have not demonstrated economic viability.

Fergusson Island Au project

The Fergusson Island project currently has a mineral resource prepared in accordance with NI 43-101, which outlined an indicated mineral resource of five million tonnes at an average grade of 1.28 g/t Au for contained gold of 206,000 ounces and an inferred mineral resource of 23.2 million tonnes at an average grade of 0.99 g/t Au for contained gold of 733,000 ounces; both inferred and indicated resources used a 0.5 g/t Au cut-off grade.

See the technical report dated Oct. 14, 2021, entitled "NI 43-101 Technical Report on the Fergusson Gold Property, Milne Bay Province, Papua New Guinea" prepared for Adyton Resources by Mr. Berry, Mr. Tear, Mr. White and Mr. Thomas, each an independent mining consultant and qualified person as defined in NI 43-101, available under the company's profile on SEDAR+. Mineral resources are not mineral reserves and have not demonstrated economic viability.

See the technical report dated Jan. 7, 2026, entitled "NI 43-101 Technical Report on Wapolu Gold Project" prepared for Adyton Resources by Louis Cohalan (MAIG), an independent mining consultant and qualified person as defined in NI 43-101, available under the company's profile on SEDAR+. Mineral resources are not mineral reserves and have not demonstrated economic viability.

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