Cascadero Copper Provides Update on Sale of Cascadero Minerals Corporation

Cascadero Copper Corporation issued an administrative update on October 1, 2026, following its September 1, 2026 announcement that it will sell 100% of Cascadero Minerals Corporation (CMC) to Lumina Copper Corp., a wholly-owned affiliate of First Quantum Minerals Ltd. CMC holds the mining rights for the Taca Taca area in Salta Province, Argentina.

Under a Debt Assumption and Offset Agreement signed with CMC and director Nelson Borch, Cascadero will assume up to CAD 163,631 of debt owed by CMC to Mr. Borch immediately prior to closing the sale. The company stated the purpose is to eliminate indebtedness at the CMC level to ensure the share purchase can complete.

Repayment of the Borch Debt is offset by: - 30% of Cascadero's Argentina legal and accounting fees tied to the sale; - 30% of CMC's administrative and operating expenses incurred in connection with the sale; - If the sale completes, Mr. Borch will pay Cascadero 30% of approximately US$925,000 (the "Borch Payment") that is payable by the company to an arm's length third party.

The transaction remains a "related party transaction" under MI 61-101 and a "Reviewable Disposition" under TSXV policy, requiring 66⅔% shareholder approval and TSXV final acceptance. Votes held by Mr. Borch are excluded from the minority approval.

The release does not change the headline economics previously disclosed: up to US$19,000,000 in total consideration, consisting of US$15,000,000 in upfront cash plus up to US$4,000,000 in deferred, Taca Taca construction-linked cash for CMC.

Cascadero Copper Corporation (CCD) issued an update regarding the assumption of debt, a move that adds little to the company’s investment case as the event was already anticipated. The transaction was flagged as a related-party item in a September 1, 2026 release, which stated that Cascadero would assume approximately CAD 163,631 of CMC debt owed to Mr. Borch. The October 1 release merely documents and formalizes that arrangement, meaning the market was already aware of the development.

The financial impact of the assumed debt is immaterial to the company’s economics. The CAD 163,631 in assumed debt is small relative to the US$15,000,000 upfront deal consideration. While the transaction initially appears to represent Cascadero absorbing a liability, the offset mechanism is arguably net favorable. If the Sale closes, Mr. Borch will pay Cascadero 30% of approximately US$925,000, which equates to roughly US$277,500, or approximately CAD 380,000 at an exchange rate of ~1.37, plus 30% of certain Argentina transaction costs. This amount more than covers the CAD 163,631 assumed, provided the deal closes.

The move serves as a constructive de-risking step rather than a value-add. Clearing CMC's balance sheet is one of the "customary closing conditions" required to finalize the Sale, so this action advances the transaction but does not itself deliver it. The binding obstacles remain unchanged: TSXV final acceptance and the 66⅔% shareholder vote.

Market reaction to the news was flat. The stock traded at CAD 0.02 on both September 30 and October 1, 2026, showing no discernible move on the news, which is consistent with a procedural update. The release represents a necessary, low-drama administrative milestone for a deal that was already the transformative event for the company, neither improving nor degrading the core thesis.

Cascadero Copper Corporation (TSXV: CCD) is a pre-revenue junior explorer focused on mineral properties in Argentina, with its strategy now centered on a single asset. The company’s flagship is the Taron Cesium project, comprising approximately 8,179 hectares across five contiguous tenures in Salta Province, northwestern Argentina: Taron, La Intermedia, La Pacha I, La Pacha II, and Taron Sur. Cascadero retains 100% ownership of Taron following the completion of the CMC sale; the seven Taron properties—El Oculto, Centauro, Cerro Lari I, Cerro Lari II, Las Burras, Incahuasi, and Santa Rosa—are excluded from the transaction.

Located approximately 160 km northwest of Salta city at an elevation of ~4,250 m, the project sits in an arid climate with no permanent habitation within 30 km. Access is provided by roads leading to former manganese mines and borax operations. The geology features cesium hosted in a Miocene epithermal system. A main zone exceeding 200 ppm Cs, measuring approximately 700 x 1,500 m with a vertical extent of 80–100 m, averages ~1,400 ppm Cs based on 2017 drilling. Cesium occurs dominantly as Cs-substituted pharmacosiderite, with rubidium closely correlated.

Exploration at Taron began with discovery in 2004, followed by trenching in 2005–2006 and seven drill holes in 2009. In 2017, 35 HQ diamond holes were drilled, yielding strong intercepts including TAR2017-26 (12 m @ 7,422 ppm Cs) and TAR2017-14 (74.5 m @ 2,758 ppm Cs). Processing work conducted in 2015–2016 by UBC demonstrated approximately 90% cesium recovery to cesium hydroxide/formate, while 2006 SGS work showed greater than 78% recovery. The company holds a patent-pending flowsheet on Taron samples.

The project deck explicitly states that no mineral resources or reserves have been estimated, and historical trenching QA/QC is considered inadequate for resource estimation, characterizing the project as advanced exploration rather than a defined resource. A Wardell Armstrong Preliminary Economic Assessment (PEA) dated April 22, 2024, describes 23.85 Mt at 2,131 ppm Cs and an NPV(10) of approximately $79M; these figures are treated as prior-period context from the company’s MD&A.

Cascadero also holds earn-in joint ventures on the Sarita Este and Desierto properties (Golden Minerals, 51% option) and the El Oculto property (Elevado Resources, 51–75% option). All of the Salta copper and exploration ground is being sold with CMC. A 1% NSR royalty is held by Northwestern Enterprises Ltd., assigned in October 2014 and previously held by Cyprus River Holdings.