CORRECTION: Omineca Continues Operations Underground at Wingdam Paleoplacer Gold Project; Receives First Nations Letter of Support

Omineca Mining and Metals Ltd. (OMM) issued a correction on July 17, 2026, to its July 15, 2026 operational update, replacing an incorrect photo while retaining all substantive content. The company confirmed substantial placer gold recovery from Crosscut #2 at its Wingdam Underground Paleoplacer Project. Additionally, Omineca received a formal letter of support from the Lhtako Dene Nation (Red Bluff Indian Band) addressed to the BC government, validating long-standing consultation.

Operations are currently paused pending approval from the BC Ministry of Mining and Critical Minerals to advance across the paleochannel using a grouted spiling and shotcrete arch ground support method. Technical adjustments include switching from cementitious to epoxy-based chemical grout, which reduces setup time to under one hour and provides immunity to water infiltration. Work shifted from Crosscut #3A to #2 due to unexpectedly high spring freshet water inflows near #3A. Advancement at #3A is paused until the wet season subsides. Upon successful paleochannel crossing, Omineca intends to file a Five-Year Mine Plan for the 1.4-kilometre channel.

Omineca Mining and Metals Ltd. (OMM) released a routine operational update confirming expected progress while highlighting ongoing execution and regulatory hurdles. First Nations support remains positive, aligning with historical consultation efforts, though it does not guarantee permit approval. The company has switched to epoxy grout, a minor technical improvement that mitigates water-related delays but does not alter the capital expenditure profile or revenue timeline.

Regulatory approval remains pending, introducing uncertainty into the near-term production schedule. The market has already priced in the operational restart and initial recovery milestones. This update provides incremental confirmation without changing the fundamental risk/reward profile.

Omineca Mining and Metals Ltd. is a junior exploration company focused on gold exploration and underground placer gold recovery in British Columbia. Its flagship asset is the Wingdam Underground Paleoplacer Gold Project, located in the Cariboo Mining District, approximately 30 km west of Barkerville, BC. The company holds a land position comprising over 61,329 hectares of mineral tenures and more than 15 linear kilometers of placer claims along the Lightning Creek valley.

The project operates under a 50/50 Joint Venture with D&L Mining. Currently in the underground test mining and hard-rock exploration stage, the company has not yet generated commercial production or revenue. Historical context includes a 2012 bulk sample from a single crosscut that recovered 173.4 ounces of placer gold, demonstrating economic potential without establishing a formal resource. Additionally, the company holds a secondary project, the Fraser Canyon placer gold project, under a memorandum of understanding with PSI Group for fully funded exploration and trial mining.