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ATERRA Metals Inc. reports mineral exploration developments centered on copper-gold porphyry projects in Chile. The company, formerly Cascada Silver Corp., completed its name change as it shifted its public identity toward copper and gold exploration and development.
Recurring updates include option agreements for the Totora Cu/Au Project in Region III, exploration work on the Totora and Frontera porphyries, reverse-circulation and diamond drilling, historical drill-core review, mineralization and alteration observations, and copper-equivalent disclosure assumptions. Company news also includes capital actions, stock-option grants, ticker and listing updates, and changes tied to its Chilean project portfolio.
ATERRA Metals (CSE: ATC, OTCQB: CSSCF) has begun preparing its maiden independent Mineral Resource Estimate (MRE) for the Totora Cu/Au Project in Chile’s Dos Amigos Mining District. ATERRA has engaged SRK Consulting (Chile) SpA to complete the NI 43-101–compliant estimate, which will define Totora’s initial mineral inventory and support future economic studies.
The MRE will integrate results from ATERRA’s Phase I drilling and historical drilling across the Frontera, Totora and Clinton copper-gold porphyry systems, with release anticipated in September 2026. Phase I highlights include 284 m grading 0.64% CuEq from surface at Frontera and 194 m at 0.41% CuEq from 254 m at Totora. Copper equivalent grades were calculated using prices of US$4.00/lb Cu and US$3,500/oz Au with assumed 85% metallurgical recoveries for both metals. The technical information was reviewed and approved by ATERRA’s Qualified Person, Chief Geologist Francisco Bravo.
ATERRA Metals (CSE: ATC, OTCQB: CSSCF) reported Phase I drill assay results from its Totora Cu/Au Project in Chile’s Dos Amigo Mining District. Key hole AFROD01 at the Frontera deposit returned 284 m grading 0.64% CuEq from surface, including 180 m at 0.71% CuEq and 70 m at 0.82% CuEq. At the Totora porphyry, ATOD01 intersected 194 m grading 0.41% CuEq starting at 254 m downhole.
The Phase I program totalled 2,745.5 m across Frontera, Totora and Algarrobilla. Frontera hosts a March 2014 historical resource of 16 Mt indicated at 0.56% CuEq and 34 Mt inferred at 0.54% CuEq. ATERRA plans a Phase II drill campaign and to mandate an independent firm to prepare a NI 43-101 compliant mineral resource for Frontera, Totora and Clinton. QA/QC checks showed no data quality issues. Separately, ATERRA issued the final tranche of shares under its advisory agreement with Research Capital, totalling 5.75 million shares at a deemed price of $0.0314.
ATERRA Metals (OTCQB:CSSCF) completed the Phase I drill program at the Totora Cu-Au Project in Chile, totaling 2,745.6 metres (1,571.5 m reverse circulation, 1,174.1 m diamond drilling).
Drilling at the Totora, Algarrobilla and Frontera porphyries confirmed pyrite and chalcopyrite mineralization, supporting work toward a Totora resource estimate targeted for Q3 2026 and an NI 43-101-compliant estimate at Frontera.
ATERRA Metals (OTCQB: CSSCF) mobilized a diamond drill rig to the Totora Cu/Au Project to continue its Phase I program, planning 1,130 metres of diamond drilling focused on the Totora porphyry and the Frontera deposit.
ATERRA cited historical Frontera resources of 16 Mt indicated @ 0.56% CuEq and 34 Mt inferred @ 0.54% CuEq, plans a new mineral resource estimate in Q3 2026, issued the first tranche of shares to Research Capital, and granted 15.57M stock options at $0.05 exercisable until April 30, 2028.
ATERRA Metals (OTCQB: CSSCF) completed Phase 1 reverse circulation drilling at the Totora Cu/Au Project with 1,575 metres drilled and a diamond drill rig being mobilized within a week.
RC holes encountered water inflow; some holes will be extended by diamond drilling to reach targeted depths. Samples have been shipped for assay with results expected within weeks. Sulphide mineralization and porphyry-style alteration were observed at Totora and Algarrobilla targets.
ATERRA Metals (OTCQB: CSSCF) has started a 3,000 m Phase I drill program at the 1,811-hectare Totora Copper-Gold Project in Chile, focusing on Totora (2,500 m RC) and Frontera (approx. 500 m diamond) porphyries.
The company aims to integrate Phase I assays with historical drilling and publish a resource estimate in Q3 2026. Historical Totora results include 142 m at 0.58% CuEq; Frontera hosts a March 2014 historical resource of 16 Mt indicated at 0.56% CuEq and 34 Mt inferred at 0.54% CuEq. ATERRA cautions historical results are unverified.
ATERRA Metals (OTCQB: CSSCF) executed three option agreements for the Totora copper-gold porphyry properties in Chile's Region III and added the 200-hectare Sevilla concession at no additional cost. The company closed a $2.78 million private placement and plans to mobilize field crews to re-log historic core, run geophysics and target a late Q1 drill program to convert historical results into NI 43-101-compliant resources.
ATERRA Metals (CSE: ATC; OTCQB: CSSCF) announced it has completed its name change from Cascada Silver Corp. to ATERRA Metals Inc., effective for trading at the start of trading on December 16, 2025.
The company said its common shares will commence trading on the Canadian Securities Exchange under the new name and ticker ATC on December 16, 2025, the CUSIP will change to CA04681G1028, and its OTCQB listing will continue to trade under CCSCF for the time being.
ATERRA Metals (formerly Cascada Silver Corp., OTCQB: CSSCF, CSE: CSS) changed its name to ATERRA Metals Inc. and will begin trading under the symbol ATC at market open on December 16, 2025. The company is finalizing binding option agreements to acquire three advanced copper-gold porphyry properties in Region III, Chile, ~60 km south of Vallenar.
Key technical highlights include a Frontera historical estimate of 16 Mt indicated @ 0.66% CuEq and 34 Mt inferred @ 0.64% CuEq; other drill intercepts reported at Taruca and Clinton.
Cascada Silver Corp (OTCQB: CSSCF) signed non-binding MOUs to acquire three advanced copper-gold porphyry properties in Chile: Frontera, Clinton and Taruca (Totora cluster), located ~60 km south of Vallenar near HWY 5 and high-voltage power.
Key disclosed facts: Frontera historic resource 16 Mt indicated @ 0.66% CuEq and 34 Mt inferred @ 0.64% CuEq; Clinton historic drilling to >500 m (6,194 m by SQM); Taruca includes Totora (~10,140 m historic drilling) and earn-in terms. Option payment schedules total US$10.0M (Frontera), US$4.0M (Clinton) and US$18.5M (Taruca) over multi-year periods. Cascada has not independently verified historical results.