Amarc Confirms Discovery of Third New Porphyry Copper-Gold System at JOYTWINS Joins the AuRORA and CANYON Discoveries, and PINE and Brenda Historical DepositsA Major New Porphyry Copper-Gold District is Emerging at JOYAnd Potentially in the Toodoggone VANCOUVER, BC / ACCESS Newswire / February 19, 2026 / Amarc Resources Ltd. ("Amarc" or the "Company") (TSXV:AHR0(OTCQB:AXREF) is pleased to announce assay results from the TWINS Discovery located approximately 17 km to southeast of the AuRORA Deposit. TWINS is the third discovery of a new copper-gold ("Cu-Au") porphyry system at the JOY District (see Amarc release March 2, 2023). With the advancement of the AuRORA Cu-Au-Ag Deposit and the TWINS and CANYON Discoveries, along with the historical PINE and Brenda Deposits, a new porphyry Cu-Au exploration playbook is unfolding in the Toodoggone region. The JOY mineral rights and title are held in Aurora Minerals Ltd., a company in which Freeport-McMoRan Mineral Properties Canada Inc. ("Freeport") holds a 60% and Amarc a 40% shareholding interest, respectively (see Amarc release September 4, 2025)."The extensive TWINS sulphide system forms the largest porphyry lithocap in the JOY District - larger than that hosting the AuRORA Deposit," said Dr. Diane Nicolson, President and CEO. "Lithocaps represent the top of a volcanic or magmatic system which can conceal copper-gold porphyry targets below. A number of comprehensive, science-based airborne and ground exploration surveys are used to see through these lithocaps and guide discovery-focused drilling. The large lithocap at TWINS is proving to have the potential to conceal exciting porphyry copper-gold systems. Certainly, the AuRORA and TWINS Discoveries are proof of exploration concept for lithocap exploration across the JOY District. Anchored on the growing AuRORA Deposit, which the Amarc team believes is a Tier One asset in the making - there is outstanding potential for the emerging development of a world class district in the Toodoggone region that could be similar to the Golden Triangle. Comprehensive planning for the 2026 season is currently underway to continue to realize the full potential of the JOY District."JOY District drilling in 2024 and 2025 totals 75 drill holes (32,264 m). Of this total, 44 holes (17,586 m) were completed at AuRORA and 31 holes (14,678 m) across the District.Thirty-five holes (15,381 m) were drilled at JOY in 2025. All assay data has been released from drilling at the AuRORA Deposit, which extends that deposit over an area of 1.4 km by 800 m. The AuRORA Deposit remains wide open to drill expansion (see Amarc release January 23, 2025). Reported here are the final assay results from 10 holes (5,208 m) drilled across the JOY District in 2025.TWINS Cu-Au Discovery and ExpansionTWINS is located on the 10 km long PINE Porphyry Trend, which also includes the PINE Deposit and the CANYON Discovery (Figure 1). The highly prospective TWINS porphyry target sulphide system is defined by an 8.5 km 2 Induced Polarization ("IP") chargeability geophysical anomaly. The large footprint of this lithocap target, its extensive veneer of glacial overburden cover, the highly anomalous Au intercepts from very widely spaced and relatively shallow reconnaissance drill holes previously released by Amarc, and the 2025 results, highlight the significant exploration potential for discovery of another porphyry Cu-Au deposit (Figure 2, see Amarc releases March 2, 2023 and February 28, 2025).Figure 1 - Large-Scale Mineral Systems Host the AuRORA, CANYON and TWINS Discoveries, PINE Deposit, NWG and Other Sulphide SystemsFigure 2 - TWINS Discovery Near Surface Drilling Intercepts Highly Anomalous Gold in Large Porphyry LithocapFigure 3 - TWINS Discovery 2025 Drilling Targets Major Porphyry Copper-Gold Deposit BelowA single scout drill hole completed in 2021 (JP21004), the first ever drilled into the TWINS Target, intercepted 42 m at 0.19 g/t Au and 0.11% Cu [1] successfully discovering porphyry-type Cu-Au mineralization (Figure 2, see Amarc release March 7, 2022).Another early and relatively shallow scout hole (JP22020) tested a magnetic high within the IP chargeability anomaly and intersected a broad 210 m geochemically anomalous interval with 0.14 g/t Au and 0.03% Cu from 12 m [1] , and is considered to be in proximity to a porphyry Cu-Au deposit (Figures 2 and 3) . Based on comparisons with the CANYON Discovery and the PINE Deposit drilling, it was understood that these and other intervals of porphyry Cu-Au mineralization at TWINS could represent the lateral or upper parts of yet undiscovered porphyry Cu-Au centers. Follow up hole JP24051, drilled in 2024, was set back 187 m to the northeast and drilled on the same section but below JP22020: it returned encouraging intercepts of 124 m at 0.35 g/t Au and 0.13% Cu, including 57 m at 0.31 g/t Au and 0.11% Cu from 441 m with alteration and mineralization strengthening with depth.Hole JP25106 drilled in 2025 targeted unde