Luca Intersects 7.6 Metres of 16.1 g/t Gold at Tahuehueto Mine - Expanding High-Grade Mineralization Near Existing Workings /* Style Definitions */ span.prnews_span { font-size:8pt; font-family:"Arial"; color:black; } a.prnews_a { color:blue; } li.prnews_li { font-size:8pt; font-family:"Arial"; color:black; } p.prnews_p { font-size:0.62em; font-family:"Arial"; color:black; margin:0in; } .prngen11{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: TOP; TEXT-ALIGN: LEFT; BORDER-TOP:black 0pt; BORDER-RIGHT:black 0pt; BORDER-BOTTOM:black 0pt; BORDER-LEFT:black 0pt } .prngen10{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: BOTTOM; TEXT-ALIGN: CENTER; BORDER-TOP:black 1pt; BORDER-RIGHT:black 0.5pt solid; BORDER-BOTTOM:black 0.5pt solid; BORDER-LEFT:black 0.5pt solid } .prngen9{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: MIDDLE; TEXT-ALIGN: LEFT; BORDER-TOP:black 1pt; BORDER-RIGHT:black 1pt; BORDER-BOTTOM:black 0.5pt solid; BORDER-LEFT:black 0.5pt solid } .prngen8{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: BOTTOM; TEXT-ALIGN: CENTER; BORDER-TOP:black 1pt; BORDER-RIGHT:black 0.5pt solid; BORDER-BOTTOM:black 0.5pt solid; BORDER-LEFT:black 1pt } .prngen7{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: MIDDLE; TEXT-ALIGN: CENTER; BORDER-TOP:black 1pt; BORDER-RIGHT:black 0.5pt solid; BORDER-BOTTOM:black 0.5pt solid; BORDER-LEFT:black 0.5pt solid } .prngen3{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: BOTTOM; TEXT-ALIGN: CENTER; BORDER-TOP:black 0.5pt solid; BORDER-RIGHT:black 0.5pt solid; BORDER-BOTTOM:black 1pt; BORDER-LEFT:black 1pt } .prngen6{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: BOTTOM; TEXT-ALIGN: CENTER; BORDER-TOP:black 0.5pt solid; BORDER-RIGHT:black 0.5pt solid; BORDER-BOTTOM:black 0.5pt solid; BORDER-LEFT:black 1pt } .prngen13{ PADDING-RIGHT:0.17em; PADDING-LEFT:0.17em; VERTICAL-ALIGN: MIDDLE; TEXT-ALIGN: CENTER; BORDER-TOP:black 0.5pt solid; BORDER-RIGHT:black 0.5pt solid; BORDER-BOTTOM:black 0.5pt solid; BORDER-LEFT:black 1pt } .prntac{ TEXT-ALIGN: CENTER } .prnbsbls{ BORDER-LEFT:black 0.5pt solid } .prnml4{ MARGIN-TOP:0em; MARGIN-RIGHT:0em; MARGIN-BOTTOM:0em; MARGIN-LEFT:0.33em !IMPORTANT } .prnpl2{ PADDING-LEFT:0.17em } .prnbrbrs{ BORDER-RIGHT:black 0.5pt solid } .prnbbbs{ BORDER-BOTTOM:black 0.5pt solid } .prnrbrb1{ BORDER-RIGHT:black 1pt } .prncbts{ BORDER-TOP:black 0.5pt solid } .prnpr2{ PADDING-RIGHT:0.17em } .prnbcc{ BORDER-COLLAPSE: COLLAPSE } .prnvam{ VERTICAL-ALIGN: MIDDLE } .prntal{ TEXT-ALIGN: LEFT } .prnvab{ VERTICAL-ALIGN: BOTTOM } .prnsbbb1{ BORDER-BOTTOM:black 1pt } Canada NewsWire VANCOUVER, BC, March 5, 2026 /CNW/ - Luca Mining Corp. ("Luca" or the "Company") (TSXV: LUCA) (OTCQX: LUCMF) (Frankfurt: Z68) reports new assay results from its ongoing 2026 drilling program at the Tahuehueto gold-silver mine in Durango, Mexico.Initial drilling has intersected high-grade gold mineralization in breccia zones, immediately below current mine workings, confirming continuity of breccia-hosted mineralization within the Creston vein system and highlighting potential for near-mine resource expansion.HighlightsHigh-grade intercepts from surface drill holes, including 7.6 metres ("m") of 16.08 g/t AuEq** (14.27 g/t Au, 46.64 g/t Ag, 0.33% Cu, 2.57% Pb, 1.19% Zn) in hole DDH26-SU-01 and 5.4 m of 16.00 g/t AuEq (15.49 g/t Au, 30.86 g/t Ag, 0.01% Cu, 0.19% Pb, 0.34% Zn) in hole DDH26-SU-03Strong continuity of mineralization confirmed in unmined areas approximately 30 m below Level 23, extending known high-grade breccia zonesThese intercepts exceed current mined grades and occur within development distance of existing underground infrastructureResults validate the geologic model and are expected to inform near-term mine plans, adding potential near-mine resourcesTo date: 28 underground holes completed for 6,750 m and 19 surface holes for 3,650 m (Creston Vein and Santiago targets)Based on continued strong drilling results, Luca's board of directors has approved a 40% increase ($1 million) to the Tahuehueto 2026 drill budget, now totaling $3.5 million"These initial surface holes confirm that high-grade breccia zones within the Creston Vein system remain unmined below current workings," said Paul D. Gray, VP Exploration. "The results validate our Tahuehueto geological model and highlight the opportunity to expand high-grade mineral resources within development distance of existing infrastructure. With both underground and surface rigs active, and an expanded drill budget, we are well positioned to continue defining high-grade mineralization and demonstrating the broader scale of the Tahuehueto system."Drill Results SummaryDrillholes DDH26-SU-01 through DDH26-SU-03 targeted a previously untested zone approximately 30 metres below active mine workings on Level 23 and along strike from Luca's successful Phase 1 2024-2025 underground drill program (See Company News Release Dated February 20, 2025). All three holes