Irving Resources Updates Exploration Results and Announces Proposed Exploration Plans for the Yamagano Joint Venture, Kyushu, Japan

VANCOUVER, December 30, 2025 - Irving Resources Inc. (CSE:IRV)(OTCQX:IRVRF)(FSE:1IR) ("Irving" or the "Company") is pleased to provide an update on: 1) assay results from drill hole 25SY-002A, 2) the completion of grid soil line sampling programs across the Yamagano project, and 3) the proposed drilling activities currently contemplated to be conducted in 2026.

25SY-002A Assay Results

Irving recently completed its fifth diamond drill hole at Yamagano East, 25SY-002A, drilled to a depth of 951.8 m at an azimuth of 357° and inclination of 66° (Figure 1). The collar of 25SY-002A is located approximately 1.07 km south of earlier drill hole, 25SY-001.

Two distinct high-resistivity bodies, located in the northern and southern parts of the project area, are evident in AMT data and have been the target of recent drilling (Figures 2 and 3). Drill hole 25SY-002A was designed to test the southern deep resistive feature which is spatially coincident with a northeast-southwest-trending zone of demagnetization. Previous drilling, targeting the northern resistive feature, returned geological indicators of mineralization. Drill hole 25SY-002A represents the first attempt to test the southern resistive target and is the deepest drill hole ever completed at Yamagano.

Hole 25SY-002A intersected multiple anomalous gold-bearing intervals associated with silicification and stockwork veining. Anomalous gold mineralization continues to depth culminating in the highest gold grade intersection in the hole, 2.11 g/t Au from 837.43 m to 838.33 m (Figure 4). Irving considers these results favourable because they indicate that the Yamagano epithermal gold system extends to depths of at least 450 m below those reached by historical mining operations.

Irving has also recently completed another drill hole, 25SY-003, located approximately 500 m south of 23SY-001 (Figure 1). Hole 25SY-003 was drilled to a depth of 900.30 m at an azimuth of 350° and inclination of 53°. This hole targeted the same resistive feature previously tested by drill holes 23SY-001 and 24SY-002 (see the Company's news release dated May 5, 2025) but from the south so that the southern flank and deeper levels of this resistive body could be tested. Three notable zones of hydrothermal alteration characterized by silicification and veining were logged beginning at approximately 130 m, 300 m and 625 m downhole, respectively. Assaying of drill hole 25SY-003 is currently underway.

All samples discussed in this news release are ½ split sawn diamond core samples. Irving submitted samples to ALS Global, Brisbane, Australia, for analysis. Au and Ag were analyzed by fire assay with AA finish. Overlimit samples were assayed by fire assay with gravimetric finish. Multielements were analyzed by mass spectrometry following four-acid digestion. Irving routinely inserts standard and blank samples in assay batches submitted to the laboratory. Company staff are responsible for geologic logging and sampling of core. Au equivalent is calculated by adding Au to (Ag/80). Recovery of both Au and Ag is expected to be +95% as smelter flux. Results referred to in this news release are not necessarily representative of mineralization throughout the project.

Completion of Soil Sampling Program

From February through December 2025, Irving completed three phases of systematic soil sampling covering a total area of approximately 5.88 km² across the Yamagano project (Figure 5). These sampling programs were designed to elucidate both known and interpreted mineralized structures trending northeast-southwest to east-west and to support future drill target generation.

With the completion of the Phase III soil program in mid-December 2025, a combined total of 673 soil samples and 57 surface rock samples (excluding QAQC samples) were collected. Assay results from surface rock float samples collected during the Phase I and Phase II soil programs returned a peak value of 86.8 g/t Au and 43.4 g/t Ag from a quartz vein sample (Figure 6).

Phase I soil assay results have already yielded multiple samples returning values greater than 1,000 ppb Au (>1 g/t Au), with the highest value of 7,940 ppb Au (7.94 g/t Au) and 5.2 g/t Ag, located approximately 500 m southwest of the historical Yamagano mine workings. Elevated concentrations of Au, Ag, and As were detected proximal to historical mining areas with several anomalous trends extending eastward. In addition, anomalous Hg and Sb values exhibit similar spatial patterns while also extending in a southward and southwestward direction from the historical mine workings.

All 32 soil lines from the Phase I, Phase II, and Phase III programs were spaced 200 m apart, with sample intervals of 50 m (Figure 5). Conventional "B horizon"* soil sampling techniques were employed during Phase I, while Deep Sensing Geochemistry ("DSG") soil sampling was applied during Phases II and III. DSG is a relatively new technique developed by Newmont Corporation designed to detect mineralization concealed beneath pre- or post-mineral cover sequences.

Sample counts exclude QAQC materials.

Quality Assurance and Quality Control ("QAQC") procedures included the insertion of certified reference materials (Oreas™) and blank limestone samples at every 20th sample for Phase I soils. For Phase II and Phase III DSG soils, duplicate samples were collected at every 20th location. Blanks and standards were also routinely inserted into the rock sample batches.

*Bradshaw, P. M. D. (1983) The application of soil sampling to geochemical exploration. Journal of Geochemical Exploration, 19, 23-45.

Proposed Future Exploration Plans

In connection with the option agreement executed between Irving and Shimadzu Ltd.**, there is potential for drilling within the Yamagano MR held by Shimadzu (Figure 7). Preparations are now underway to look to potentially commence drilling on the Yamagano MR in 2026. A draft Master Plan, required for the implementation of drilling activities, is currently being prepared.

The approximately 400-year history of gold production at the Yamagano Mine has taken place entirely within the Yamagano MR. More than 50 mineralized veins have been identified within the lease area***. Only a limited number of these veins have been systematically developed. In the northern part of the broader Yamagano vein system, little formal mining has been conducted. Recent soil sampling by Irving identified high-grade gold float in proximity to projections of veins in this area (Figure 6).

Furthermore, approximately one-third of the central eastern portion of the Yamagano MR is extensively covered by Hokusatsu Younger Andesite, a post-mineral sequence of volcanic rocks. According to Shimadzu Ltd., very little drilling has been undertaken in this area to date suggesting untested exploration potential may be present in this area.

Yamagano JV is a joint venture between Newmont Overseas Exploration Limited ("Newmont"), a wholly-owned subsidiary of Newmont Corporation, Sumitomo Corporation ("Sumitomo") and Irving. The initial interests of the parties in the joint venture are Newmont, 60%, Sumitomo, 12.5%, and Irving, 27.5%.

**Irving Resources Press Release, September 28, 2020

***Takashima, K. and Takase, H. (1951) Survey report of the Yamagano gold-silver deposit, Kagoshima. Bulletin of the Geological Survey of Japan, pp. 479-486.

Quinton Hennigh (Ph.D., P.Geo.) is the qualified person pursuant to National Instrument 43-101 Standards of Disclosure for Mineral Projects responsible for, and having reviewed and approved, the technical information contained in this news release. Dr. Hennigh is a technical advisor and a director of Irving and has verified the data disclosed including sampling, through review of photographs of core prior to and after sawing and sampling, and analytical, through review of standard and blank analyses.

About Irving Resources Inc.:

Irving is a junior exploration company with a focus on gold in Japan. Irving resulted from completion of a plan of arrangement involving Irving, Gold Canyon Resources Inc. and First Mining Finance Corp. Additional information can be found on the Company's website: www.IRVresources.com.

Akiko Levinson,
President, CEO & Director

For further information, please contact:

Tel: (604) 682-3234 Toll free: 1 (888) 242-3234 Fax: (604) 971-0209
info@IRVresources.com

Some statements in this news release may contain forward-looking information within the meaning of Canadian securities legislation including, without limitation, statements as to planned exploration activities. Forward-looking statements address future events and conditions and, as such, involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the statements. Such factors include, without limitation, customary risks of the mineral resource exploration industry, the funding of planned drilling and other exploration activities, as well as the performance of services by third parties.

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SOURCE: Irving Resources Inc.