Excelsior Mining Corp. is pleased to confirm that wellfield optimization at the Gunnison Copper Project in Southern Arizona is progressing as planned. Excelsior previously announced some changes to the production wellfield in order to improve efficiency for long-term production performance. These changes are expected to be completed in March, 2020, and the Company is forecasting first copper production in Q2 of this year [...]
Excelsior Mining Corp. is pleased to provide an update following the first month of mining operations at the Gunnison Copper Project in Southern Arizona. Excelsior has collected a significant amount of data over the first month of operations and based on the data has identified optimization programs that are currently being implemented. Excelsior is initiating the following optimizations to the production wellfield [...]
Excelsior Mining Corp. is pleased to provide an update on operations at the Gunnison Copper Project in southern Arizona. Initial copper recovery grades are exceeding feasibility study expectations. Pregnant leach solution grade is currently measuring 0.15 grams per liter copper in the primary recovery pond; this milestone is ahead of schedule and keeps Excelsior on pace for copper production this quarter. "We have the [...]
Excelsior Mining Corp. confirms the successful commencement of mining operations at the Gunnison Copper Project in southern Arizona. Following a comprehensive commissioning program that has been ongoing for several weeks, regulatory approval to commence mining operations through the injection of acid was recently received from the Environmental Protection Agency . Delivery of mining fluids to the copper orebody has [...]
Excelsior Mining Corp. confirms that approval to commence mining operations through the injection of acid has been received from the Environmental Protection Agency. Delivery of mining fluids to the copper orebody is scheduled to begin before year-end at the Gunnison Copper Project in southern Arizona. First copper cathode sales are expected in Q1, 2020. Throughout the mine build out, Excelsior has maintained a focussed [...]
Excelsior Mining Corp. announces that it and its wholly-owned subsidiary Excelsior Mining Arizona, Inc. have entered into an agreement with Nebari Natural Resources Credit Fund I LP for a US$15 million credit facility . The Credit Facility provides for an initial draw of US$5 million , and two additional draws of US$5 million each at the sole option of Excelsior Arizona. There are no common shares, warrants or other [...]
Excelsior Mining Corp. provides a construction update ahead of the commencement of mining operations at the Gunnison Copper Project in southern Arizona. Excelsior remains on-schedule for first copper cathode production in Q4 2019. All significant construction related to wellfield operations is now complete. Wet commissioning is currently being conducted; whereby down-hole pumps are being turned on and water is being [...]
Excelsior Mining Corp. confirms the successful completion of the drilling of the production wellfield at the Gunnison Copper Project in southern Arizona. Excelsior remains on-schedule for first copper production in Q4 2019. A total of 41 production wells have been successfully drilled. The depth of each well is approximately 1300 feet, and all wells are open within the copper ore body. Injection and recovery wells are [...]
Excelsior Mining Corp. confirms the successful completion of all ponds essential for production at the Gunnison Copper Project in southern Arizona. Excelsior remains on-schedule for first copper production in Q4 2019. The Gunnison Copper Project has six major ponds represented by five types: Pregnant Leach Solution , raffinate, evaporation, utility and draindown ponds. Some ponds are retrofits of existing ponds, while [...]
Excelsior Mining Corp. confirms the successful completion of the pipeline corridor at the Gunnison Copper Project in southern Arizona. Construction of a two-mile high-density polyethylene pipeline corridor connecting the Johnson Camp Mine processing facility to the production wellfield began in January and has now been successfully completed precisely as per Excelsior's construction timeline. Excelsior remains on-schedule [...]
Excelsior Mining Corp. confirms the first delivery of acid to the Gunnison Copper Project in southern Arizona. Excelsior remains on-schedule for first copper production in Q4 2019. In July, Excelsior completed the construction of three new acid storage tanks and a new acid unloading facility. The new acid storage tanks have capacity for 7500 tons of sulphuric acid, providing for excess operational and purchasing [...]
Excelsior Mining Corp. is pleased to confirm that electrical power upgrades have been completed at the Gunnison Copper Project in southeast Arizona; thereby allowing for all components of the project to be energized. This is another significant milestone and allows Excelsior to remain on-track for first copper production in Q4 2019. The power transmission line to the production wellfield is now ready to be energized. The [...]
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