December 2, 2021
21-23 - Ecuador Constitutional Court Rules on exploration activities in the “Los Cedros” Protected Forest in the Rio Magdalena Project within the ENAMI EP Strategic Exploration Alliance in NW Ecuador

December 2, 2021
21-22 - Drilling Update: Assay Results of Holes 14 to 24 at Tandayama-America Porphyry Copper-Gold Deposit, Cascabel Project, Ecuador

November 23, 2021
21-21 - Cascabel Pre-Feasibility Study Update

November 18, 2021
21-20 - Drilling intersects 111m at 2.3g/t gold, including 7.2m at 26.9g/t gold at new “Alba” gold target at Bramaderos Project, Ecuador

November 17, 2021
21-19 - Newcrest to Begin Drilling at Cornerstone’s Miocene Gold-Copper Project in Chile in January

October 19, 2021
21-18 - Cornerstone announces Maiden Resource at Tandayama-America Porphyry Copper-Gold Deposit, Cascabel Project, Ecuador

September 16, 2021
21-17 - Three more holes intersect mineralized porphyry at Brama target, Bramaderos Project, Ecuador, paving way for maiden Mineral Resource Estimate in early 2022

September 10, 2021
21-16 - Drill Hole 13 at Tandayama-America Porphyry Copper-Gold Target, Cascabel, intersects 1,010m @ 0.55% CuEq from 194m depth (including 392m @ 0.93% CuEq from 246m)

August 10, 2021
21-15 - Cornerstone Grants Stock Options

June 21, 2021
21-14 - Drilling intersects 505m of mineralized porphyry at Brama target, Bramaderos Project, Ecuador

June 2, 2021
21-13 - SolGold & Cornerstone to Cooperatively Advance Cascabel to Maximize Shareholder Value

May 25, 2021
21-12 - Drilling Results from Holes 1-7 at Tandayama-America Porphyry Copper-Gold Target, Cascabel, indicative of significant resource potential

May 12, 2021
21-11 - Cornerstone Announces Proceeds of Exercise of Warrants

April 29, 2021
21-10 - Cornerstone Announces Adoption of Advance Notice By-Law

April 22, 2021
21-09 - Cornerstone and Sunstone drill 84.3m of 0.8g/t gold from 180m depth (within a 450m intersection grading 0.47g/t gold beginning 5m from surface) at Brama target - Bramaderos Project, Ecuador

April 8, 2021
21-08 - Pre-Feasibility Study Update - Alpala Project, Cascabel Concession, Ecuador

March 18, 2021
21-07 - First hole of the Phase 2 program at Brama target (Bramaderos Project, Ecuador) hits mineralized porphyry over shallow 300m intersection

March 17, 2021
21-06 - Bramaderos Project Update, Ecuador - Latest assays extend known strike length of Espiritu silver-gold system to 700m

March 4, 2021
21-05 - Drill targets defined at the Espejo Project within the ENAMI EP Strategic Exploration Alliance in NW Ecuador

February 19, 2021
21-04 - Bramaderos Project Update, Ecuador

February 5, 2021
21-03 - Pre-Feasibility Study Update - Alpala Project, Cascabel Concession, Ecuador

January 29, 2021
21-02 - Amended NI 43-101 Technical Report on the Cascabel Property, Alpala Deposit, Northern Ecuador

January 20, 2021
21-01 - More bonanza grades at Espiritu silver-gold discovery, Bramaderos Project, Ecuador

December 29, 2020
20-38 - Newcrest Exercises Option to move to Stage One under its farm-in agreement at Cornerstone’s Miocene gold-copper Project, Chile

December 17, 2020
20-37 - First Drill Hole at Tandayama-America Copper Molybdenum Gold Anomaly, Cascabel, Discovers New Highly Mineralized Alpala-Style Porphyry System 3km North of Alpala

December 10, 2020
20-36 - Drilling Underway at the Tandayama-America Porphyry Copper-Gold Target, Cascabel Project, Ecuador

December 9, 2020
20-35 - Cornerstone Announces Completion of $7.7 Million Financing

December 2, 2020
20-34 - Cornerstone obtains reporting issuer status in Ontario

December 1, 2020
20-33 - Espiritu drilling (Bramaderos project Ecuador) returns bonanza grades of 1.1m at 1064g/t silver, 0.2g/t gold, 5.5% zinc and 1.3% lead Pb, in one of multiple lodes

December 1, 2020
20-32 - Pre-Feasibility Study Update - Alpala Project, Cascabel Concession, Ecuador

November 25, 2020
20-31 - Cornerstone Announces Increased Financing to up to $7.7 Million

November 24, 2020
20-30 - Cornerstone Announces up to $6.9 Million Financing

October 16, 2020
20-29 - Cornerstone Corrects False & Misleading Statements by SolGold

October 15, 2020
20-28 - Cornerstone Successful in Defence Against SolGold's Hostile Bid

September 30, 2020
20-27 - Pre-Feasibility Study Update - Alpala Project, Cascabel Concession, Ecuador

September 17, 2020
20-26 - Exploration Program Planned at Bella Maria Gold-Copper project (Ecuador)

September 15, 2020
20-25 - Clarification to Technical Disclosure and Intention to Amend Technical Report

September 11, 2020
20-24 - Drilling underway at Espiritu gold-silver target at Bramaderos Gold Project (Ecuador)

September 8, 2020
20-23 - Cornerstone to be exclusive sponsor of Kitco's coverage of Denver Gold Forum

August 27, 2020
20-22 - Cornerstone Update on the Miocene gold-copper Project, Chile

August 25, 2020
20-21 - Cornerstone announces results of August 25th shareholders' meeting

August 19, 2020
20-20 - Drilling to begin in September at Espiritu target at Bramaderos Gold Project (Ecuador)

July 22, 2020
20-19 - Cornerstone Intends to Requisition SolGold General Meeting to be held in late October 2020 to Replace Entire SolGold Board

July 15, 2020
20-18 - Cornerstone to Requisition SolGold General Meeting to Replace Entire SolGold Board

July 14, 2020
20-17 - Cornerstone Board Formally Rejects Hostile Bid by SolGold for the Second Time

July 13, 2020
20-16 - Espiritu trench at Bramaderos Au-Cu Project (Ecuador) exposes gold-silver polymetallic veins intersecting 4m at 415g/t silver, 0.9g/t gold, 6.9% zinc and 6.0% lead

June 30, 2020
Cornerstone Recommends Shareholders Take No Action in Response to Hostile Takeover Bid by SolGold

June 26, 2020
20-14 - Cornerstone Provides Update on Annual Meeting

May 22, 2020
20-13 - Technical Report filed for Alpala Mineral Resource Estimate # 3

May 11, 2020
20-12 - Field work to resume at Bramaderos Au Cu Project, Ecuador

April 29, 2020
20-11 - Further Metallurgical Test Work Continues to Add Improvements and Modeled Revenue Increases at Alpala

April 8, 2020
20-10 - Bramaderos Au Cu Project, Ecuador -- High-grade surface samples at Espiritu epithermal gold-silver target

April 7, 2020
20-09 - Alpala Mineral Resource Estimate # 3 delivers significant tonnage conversion to Measured Category

March 26, 2020
20-08 - Bramaderos Au Cu Project, Ecuador -- Exploration breakthrough leads to identification of numerous higher grade gold-copper porphyry targets

March 25, 2020
20-07 - Temporary suspension of activities at Cascabel and other Cornerstone Projects due to Coronavirus Precautions

March 11, 2020
20-06 - Cascabel (Alpala Deposit) Update

February 27, 2020
20-05 - High potential Porphyry Cu-Au-Mo Targets Discovered at Espejo and Rio Magdalena Projects within the ENAMI EP strategic exploration alliance in NW Ecuador

February 25, 2020
20-04 - Bramaderos Au Cu Project, Ecuador - Latest assays combined with new 3D magnetics point to clusters of higher-grade zones

January 22, 2020
20-03 - Ten priority epithermal gold targets identified for follow-up at Bramaderos - Rock chip samples of up to 11g/t gold highlight the prospectivity

January 21, 2020
20-02 - Bramaderos Main assays extend strike length of mineralization to 650m

January 7, 2020
20-01 - Bramaderos Farm-in Terms Amended

December 16, 2019
19-38 - Cornerstone Closes Debt Settlement

December 9, 2019
19-37 - Cornerstone to Settle Outstanding Indebtedness

December 3, 2019
19-36 - Bramaderos Update - Latest Limon assays indicate drilling is closing in on centre of gold-copper porphyry

November 22, 2019
19-35 - Update on Investment for Accounting Purposes in Cascabel

November 20, 2019
19-34 - Cornerstone Files Amended Technical Report for Cascabel (Alpala Deposit) Preliminary Economic Assessment

October 29, 2019
19-33 - Drilling continues at the Limon and Bramaderos Main gold-copper porphyry prospects

October 28, 2019
19-32 - Cascabel Copper Gold and Silver Recovery Improvements Drive Modeled Revenue Increases

October 15, 2019
19-30 - Bramaderos Drilling Update - Drilling at Limon target suggests major porphyry source nearby

August 28, 2019
19-29 - Sunstone earns 51% ownership in the Bramaderos gold-copper project in Ecuador

August 27, 2019
19-28 - Updated exploration model indicates discovery potential at Bramaderos

August 26, 2019
19-27 - Drilling at Bramaderos Main returns strong results of 55.8m at 0.74g/t gold and 0.15% copper in outcropping porphyry gold-copper system

August 20, 2019
19-26 - Bramaderos Main drilling results define areas of higher-grade gold and copper within large porphyry system - Further drilling will aim to extend these higher-grade zones

August 6, 2019
19-25 - Cornerstone Grants Stock Options

August 6, 2019
19-24 - Bramaderos Exploration Update -- Farm-in Partner Sunstone to ramp up exploration with 2 rigs drilling at West Zone gold prospect and Limon gold-copper porphyry prospect

July 19, 2019
19-23 - Cascabel Exploration Update - Pre-Feasibility Work Program & Alpala Drilling Campaign

July 18, 2019
19-22 - Bramaderos Exploration Update -- Strong assays received for upper portion of drill hole BMDD001 from the Bramaderos Main gold-copper prospect

July 11, 2019
19-21 - CORNERSTONE ANNOUNCES EFFECTIVE DATE FOR SHARE CONSOLIDATION

July 2, 2019
19-20 - Bramaderos Exploration Update -- Assays from Limon drill hole 2 indicate proximity to the core of a porphyry system - Bramaderos Main drill hole 1 completed at 670m and hole 2 in progress

June 28, 2019
19-19 - Cornerstone Files Technical Report for Cascabel Preliminary Economic Assessment

June 27, 2019
19-18 - Cornerstone Announces Results of June 25th Shareholders' Meeting

June 20, 2019
19-17 - Cornerstone Reports on Decision of Ecuador Constitutional Court

June 6, 2019
19-16 - Cornerstone Reports on Hearing of Anti-Mining Referendum Oral Arguments at Constitutional Court

May 30, 2019
19-15 - Cornerstone Comments on Share Price Activity

May 30, 2019
19-14 - Bramaderos Exploration Update -- Drilling intersects extensive mineralized porphyry system at Limon Target

May 29, 2019
19-13 - CORNERSTONE PROPOSES SHARE CONSOLIDATION

May 20, 2019
19-12 - CORNERSTONE ANNOUNCES EXTREMELY POSITIVE PEA RESULTS FOR CASCABEL PROJECT

April 22, 2019
19-11 - Cornerstone and Newcrest sign definitive Option and Farm-in Agreement for the Caña Brava gold-copper Project in Ecuador

April 18, 2019
19-10 - Bramaderos Exploration Update -- Drilling at Limon target underway

April 10, 2019
19-09 - Cascabel Exploration Update -- Alpala 2019 Drilling Campaign and Update on Investment in ENSA

April 8, 2019
19-08 - Cornerstone announces issuance of Bramaderos environmental license - drilling to commence shortly

March 14, 2019
19-07 - Cornerstone announces approval of Bramaderos EIA -- Drill Rig to be mobilized to site immediately

March 8, 2019
19-06 - Cornerstone Board Rejects Hostile Bid Proposal by SolGold

February 19, 2019
19-05 - Cornerstone and Newcrest sign Option and Farm-in Heads of Agreement for the Caña Brava gold-copper Project in Ecuador

February 8, 2019
19-04 - Cornerstone Responds to Second SolGold Announcement

January 31, 2019
19-03 - Cornerstone Responds to SolGold Announcement

January 11, 2019
19-02 - Cornerstone Adopts Shareholder Rights Plan

January 3, 2019
19-01 - Cornerstone files Technical Report for Updated Alpala Mineral Resource Estimate

December 31, 2018
18-34 - Cornerstone announces new CFO

December 13, 2018
18-33 - Cornerstone Closes Debt Settlement

December 11, 2018
18-32 - Cornerstone to Settle Outstanding Indebtedness

December 10, 2018
18-31 - Cornerstone and Newcrest sign Option and Farm-in Agreement for the Miocene gold-copper Project in Chile

November 20, 2018
18-30 - Alpala Mineral Resource Estimate Update - Indicated Resource of 2.1 Bt @ 0.6% CuEq (8.4 Mt Cu, 19.4 Moz Au) including 400 Mt @1.49% CuEq (3.6 Mt Cu, 11.9 Moz Au)

November 13, 2018
18-29 - Cascabel Exploration Update -- Alpala Deposit Growing in Size and Quality

October 5, 2018
18-28 - Cascabel Exploration Update -- Alpala Mineral Resource update expected in December 2018

September 13, 2018
18-27 - Cornerstone Announces Signing of Contracts for the Completion of the Airborne Geophysical Survey Started Last Year on the ENAMI-Cornerstone JV Properties in North West Ecuador, and Option Grants

September 5, 2018
18-26 - Cornerstone Decides not to Proceed with Plan of Arrangement

August 20, 2018
18-25 - Cascabel Exploration Update - Over 100km of Additional Drilling Since Maiden Mineral Resource Estimate to Provide Stronger Resource Base at Alpala

August 13, 2018
18-24 - Cascabel Exploration Update - Exceptional Recent Drilling Results at Alpala Reveal a Larger, More Cohesive High Grade Core

August 1, 2018
18-23 - Cornerstone provides update on Plan of Arrangement

July 16, 2018
18-22 - New Ecuadorian Government policy announced that could pave way for drilling to begin earlier at Bramaderos project in Ecuador

July 13, 2018
18-21 - Cascabel Exploration Update - Drilling results promise further growth at Alpala - Aguiñaga Hole 6 intersects strong mineralization 30m below surface

June 27, 2018
18-20 - Cascabel Exploration Update - Alpala Deposit Growing with Extensions to Higher Grade Core Zones as Drilling Progresses Beyond 120,000m Target

June 6, 2018
18-19 - Cascabel Exploration Update - Continued Growth at Alpala and Aguiñaga

May 29, 2018
18-18 - Limon target enhanced trench results extended to 97.6m at 0.71 g/t gold and 0.23 % copper, at Bramaderos project in Ecuador

May 9, 2018
18-17 - Longitudinal trench at Bramaderos Main prospect in Ecuador delivers 615m at 0.52g/t gold and 0.11% copper

April 30, 2018
18-16 - Cornerstone announces 36m at 0.9g/t gold and 0.4% copper from initial trenching at Limon Prospect, Bramaderos Gold-Copper Project in Ecuador

April 17, 2018
18-15 - Cascabel Exploration Update - Further High-Grade Extensions at Alpala Cu-Au Porphyry Deposit - Aguinaga Drilling Reveals Potential for Second Porphyry Deposit at Cascabel

March 26, 2018
18-14 - Cascabel Exploration Update - Exciting Mineralization Intersected at Aguinaga - Alpala Deposit Extends Closer to Surface - Alpala Northwest Growing

March 5, 2018
18-13 - Large Drilling Targets Identified by Magnetics at the Bramaderos Gold-Copper Project in Ecuador

March 2, 2018
18-12 - Cornerstone Announces Completion of $8.2 Million Financing

February 20, 2018
18-11 - New heli-magnetics and soil sampling identify additional exploration targets at Bramaderos project in Ecuador

February 20, 2018
18-10 - Cascabel Exploration Update - Alpala NW Hole 37 Indicates Major System Extensions Northwest and North to Trivinio

February 16, 2018
18-09 - Cornerstone files technical report on the Maiden Mineral Resource Estimate for the Alpala Deposit, Ecuador

February 14, 2018
18-08 - Cascabel Exploration Update - Aguinaga Drilling to Commence in March

February 1, 2018
18-07 - More Strong Trenching Results from Outcropping Porphyry Gold-Copper System at Bramaderos Main Target, Ecuador

January 29, 2018
18-06 - Cornerstone Announces Increased Financing to $8.2 Million

January 26, 2018
18-05 - Cascabel Exploration Update - Cascabel Drilling Effort Focusing on Alpala High Grade Expansion

January 17, 2018
18-04 - Cornerstone Obtains Final Order for Spinoff of Cornerstone Exploration Inc.

January 11, 2018
18-03 - Cornerstone Announces $5.2 Million Financing

January 11, 2018
18-02 - Completion of detailed helimagnetic survey marks start of aggressive 2018 exploration program at Bramaderos gold-copper project in Ecuador

January 3, 2018
18-01 - Alpala (Cascabel) Maiden Mineral Resource Estimate - 1.08 Bt @ 0.68% CuEq of 430Mt Indicated @ 0.8% CuEq (2.3 Mt Cu, 6.0Moz Au) and 650Mt Inferred @ 0.6% CuEq (2.9 Mt Cu, 6.3 Moz Au)

December 22, 2017
17-49 - Cascabel Exploration Update - Assay results show continued growth along the Alpala trend. Cascabel drilling fleet expands to 12 diamond drill rigs - Maiden Mineral Resource Estimate nearing completion

December 19, 2017
17-48 - Cornerstone announces results of Trenching over Outcropping Porphyry Gold-Copper System at Bramaderos Main Target, southern Ecuador -- Results include 51.1m at 0.81g/t Gold and 0.18% Copper (1.11 g/t AuEq)

December 14, 2017
17-47 - Cornerstone Securityholders Approve Spinoff of Cornerstone Exploration Inc.

December 14, 2017
17-46 - Bramaderos Project Update - Drilling Target Definition and Permitting

December 5, 2017
17-45 - Cornerstone announces multiple large porphyry gold-copper drilling targets defined by soil sampling at Bramaderos Project, southern Ecuador

December 4, 2017
17-44 - Cornerstone Announces Start of Airborne Geophysical Survey on the ENAMI-Cornerstone JV Properties in North West Ecuador

November 27, 2017
17-43 - Cascabel Exploration Update - Alpala Maiden Mineral Resource Estimate on track for completion late December

November 24, 2017
17-42 - Cascabel Exploration Update - Cascabel drilling fleet grows; Alpala Central still open in multiple directions; Alpala Northwest expansion continues; Alpala East showing promise

November 16, 2017
17-41 - Cornerstone Files Circular for Spin-Off

November 8, 2017
17-40 - Cornerstone samples 28m @ 3.9g/t gold, including 15.6m @ 6.1g/t gold at West Zone target, Bramaderos Project, southern Ecuador

November 1, 2017
17-39 - Cascabel Exploration Update - Intersections from Hole 26-D1 and Hole 28 extend high grade mineralization outside of previous boundary of the deposits

October 24, 2017
17-38 - Cornerstone Provides Market Update

October 18, 2017
17-37 - Soil sampling at Limon porphyry gold-copper target defines two large anomalies, Bramaderos Project, Ecuador

October 17, 2017
17-36 - Cornerstone announces Bramaderos property (Ecuador) West Zone trench assays of 8.9m at 6.1g/t gold

October 11, 2017
17-35 - Cornerstone Update on Circular for Spin-Off

October 6, 2017
17-34 - Cascabel Exploration Update - Alpala copper-gold deposit continues to grow with assay results from Holes 23R-D1 and 24-D1R. Rigs 6 and 7 arrive at Cascabel.

September 25, 2017
17-33 - Cornerstone announces Bramaderos property trench assays of 22 m at 4.8 g/t gold

August 31, 2017
17-32 - Cascabel Exploration Update - Alpala copper-gold deposit showing rapid growth with expanding drill fleet -- Hole 26 intersects 810m1 grading 0.72% copper equivalent

August 29, 2017
17-31 - Early work at Bramaderos Cu Au Project Delivering Encouraging Results at the Three Key Target Areas

August 24, 2017
17-30 - Cornerstone Provides Update on Spin-off - Plan to Maximize Shareholder Value on Schedule

August 16, 2017
17-29 - Cornerstone Closes Balance of Previously Announced Share Exchange for Shares in SolGold plc

July 29, 2017
17-21 - Cascabel Hole 23R Assay Results Reveal Extension of High Grade Zone at Alpala Target

July 26, 2017
17-28 - Cascabel Exploration Update: Alpala Southeast growing with Hole 24-D1R - Alpala Northwest confirmed by Hole 26 - More drill rigs for Alpala expansion

July 18, 2017
17-27 - Results from Bramaderos Project Highlight Potential for Significant Gold-Copper Discoveries

July 14, 2017
17-26 - Cornerstone Enters into Lock Up Agreement

July 13, 2017
17-25 - Cornerstone To Spin Off Non-Cascabel Assets and to Re-Name as Cascabel Gold & Copper Inc.; Greg Chamandy to join Board as Chairman - Management Highly Committed to Maximizing Shareholder Value

July 12, 2017
17-24 - Cornerstone closes share exchange

July 5, 2017
17-23 - Cascabel Update

July 4, 2017
17-22 - Cornerstone to Acquire Additional Shares in SolGold plc

June 27, 2017
17-20 - Cornerstone closes share exchange

June 23, 2017
17-19 - Cascabel Hole 24 & 25 Assay Results

June 21, 2017
17-18 - Cascabel Exploration Update - Ground Magnetics Survey Results and Future Survey Plans

June 19, 2017
17-17 - Cornerstone to acquire shares of SolGold plc

June 13, 2017
17-16 - Cascabel Exploration Update - Drilling program to expand to Alpala Northwest, Aguinaga, and Tandayama-America

June 6, 2017
17-15 - Numerous Targets Identified at Bramaderos Gold-Copper project in Ecuador - Outcropping mineralization evident

May 17, 2017
17-14 - Cornerstone completes Miocene (Chile) property earn in

May 9, 2017
17-13 - Cornerstone awarded Tioloma concession in Ecuador

May 2, 2017
17-12 - Cascabel Exploration Update -- Rig 4 mobilization to site -- IP survey to begin

April 21, 2017
17-11 - Cascabel Exploration Update -- Hole 21 at Hematite Hill assay results of 844.0m @ 0.73 % copper and 0.43 g/t gold from 688.0m confirm 150m strike-extension at Alpala

April 13, 2017
17-10 - Cascabel Exploration Update

April 11, 2017
17-09 - Cascabel Exploration Update -- Hole 22 extends the Alpala Central high grade core 200m shallower

April 10, 2017
17-08 - Cornerstone and Avalon Minerals sign binding letter of intent for Bramaderos copper-gold concession in southern Ecuador

April 4, 2017
17-07 - Cascabel Exploration Update - Holes 19 to 25

March 6, 2017
17-06 - ENAMI and Cornerstone awarded new concessions near Cascabel

February 27, 2017
17-05 - Cascabel Exploration Update - Hole 21 Extends Alpala Strike by 200m to the Southeast

February 14, 2017
17-04 - Cascabel Exploration Update Hole 19 assays - 1132 metres (true width 500 m) grading 0.50% Cu and 0.33% Au from 246 metres

February 2, 2017
17-03 - Cascabel Exploration Update - Drill hole 18 partial assay results return 664m grading 0.70 % Copper, and 0.77 g/t Gold from 904m within broader mineralized halo of 1204m grading 0.46 % Cu and 0.47 g/t Au from 466m at the growing Alpala deposit.

January 5, 2017
17-02 - Cornerstone awarded Bramaderos concession

January 4, 2017
17-01 - Cascabel Exploration Update Holes 18, 19 and 20R

June 14, 2016
16-12 - Cornerstone signs definitive joint exploration agreement with Ecuador’s State Mining Company, ENAMI EP

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