# Irving Resources Updates Exploration Results and Announces Proposed Exploration Plans for the Yamagano Joint Venture, Kyushu, Japan *2025-12-30T07:00:00-05:00* Irving Resources Updates Exploration Results and Announces Proposed Exploration Plans for the Yamagano Joint Venture, Kyushu, Japan **VANCOUVER, BC / [ACCESS Newswire](https://www.accessnewswire.com/)/ 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, P