Announcement • Mar 31
Coast Copper Corp. (TSXV : COCO) acquired Goldfinger property, Thunderball property & Moonraker property. Coast Copper Corp. (TSXV : COCO) acquired Goldfinger property, Thunderball property & Moonraker property on March 30, 2026.
Coast Copper Corp. (TSXV : COCO) completed the acquisition of Goldfinger property, Thunderball property & Moonraker property on March 30, 2026. New Risk • Mar 12
New major risk - Earnings quality The company has a high level of non-cash earnings. Accrual ratio: 110% This is considered a major risk. Non-cash earnings can arise from many different things. However, if a company consistently has a high level of non-cash earnings, it may be a sign that they are recognizing revenue from customers before the full value of the sales are received as cash or they are not depreciating the value of their assets appropriately. These are practices that inflate earnings, while not providing a similar increase to cash flows. Companies in some select industries naturally have a high level of non-cash earnings and it is not a major concern. However, in the worst case scenario it can be an early sign of performance manipulation by management. Currently, the following risks have been identified for the company: Major Risks Share price has been highly volatile over the past 3 months (20% average weekly change). High level of non-cash earnings (110% accrual ratio). Revenue is less than US$1m. Minor Risk Market cap is less than US$100m (CA$13.9m market cap, or US$10.2m). Announcement • Mar 03
Coast Copper Corp. Highlights its Sweeney Mineral Claim Holdings in Heart of Huckleberry Mine Camp in Northwestern British Columbia Coast Copper Corp. announced that it has highlight its Sweeney mineral claim holdings in the heart of the Huckleberry mine camp in northwestern British Columbia. The Sweeney project includes the past-producing, road accessible high-grade silver Emerald mine. Coast Copper also wishes to congratulate its neighbor Surge Copper Corp. on the significant announcement made on February 23, 2026, by the BC provincial government noting that Surge's Berg Project will receive BC Critical Minerals Office support as an advanced project. 2024 - 2025 work has identified additional strong targets, including areas newly exposed by glacial retreat. In 2026, the company is planning surface geological, geochemical, and geophysical programs which will be funded from existing treasury, including cash and marketable securities. The road accessible Sweeney project (1,492 hectares) is centrally located in the Huckleberry mine camp and is 7 km north-northwest of the past producing Huckleberry mine, 3 km west of Huckleberry Mines Ltd.'sWhiting Creek deposit and 8 km southeast of Surge's Berg deposit2. Historical exploration was focused in and around the Emerald mine where mining occurred intermittently between51 and 1968. Unclassified historical reserves were reported on the Emerald Vein of 40,800 tonnes grading 355 grams per tonne ("g/t") Ag, 8.23% Pb, 9.49 % Zn and 1.13 g/t Au with ore zones noted open to depth. No drilling or underground exploration was completed on the property between 1971-2011. In 2012 a shallow 30 diamond drillhole program with an average drillhole length of 52 meters ("m") focused on the Miya Vein. The Miya Vein is separate from and crosscuts the north-south trending Emerald Vein trend at 300 degrees. There is insufficient geological information available to determine true widths of mineralization. Next steps: The Company is planning further surface programs in underexplored areas of the Sweeney property on trends of known veins and structures as well as possible geophysical surveys to help identify these structures. The technical information contained in this news release has been prepared, reviewed, and approved by WadeBarnes, P.Geo. (BC), Coast Copper's geological consultant and a Qualified Person within the context of the Canadian Securities Administrators' NI 43-101; BC Minfile Record Summary: Historical information provided cannot be relied upon as the Company's QP as defined under NI 43-101 has not prepared nor verified the historical information. The stated resource is not NI 43-101 compliant, and a Qualified Person has not done sufficient work as per NI 43-101 to be prepared, reviewed, and a Qualified Person within The stated resource is not NI43-101 compliant, and aQualified Person has not done sufficient Work as per NI 43-101. 
