공시 • Sep 15
Tombstone Exploration Corporation Announces Phase Two of Fast Leach Production and Positive Cash Flow from Recent Leach Test Tombstone Exploration Corporation announced estimated forecast cash flow from Phase Two Production based on current test results for the Bonanza Harquahala Mine. Plan Moving Forward: The next phase will process the tailing and the remaining waste rock, as agglomerated product. The lab tests have shown that agglomerated tailing/waste rock gave very “fast” leaching. Lab results show average recovery of 50% of Au within two weeks. For a “fast” leach: 50,000 tons per month; At grade of 0.035 opt Au; With recovery of 50%. The recovered gold would be 875 oz Au per month for twelve months suggesting 10,500 oz of Au. There are total of 500,000 tons available for processing. In this scenario, within a year all 500,000 tons will be crushed/agglomerated, and the process will recover 10,500 oz Au. With the updated information from KCA lab results, company can see the following scenario unfolding as company move forward with fast leaching and the head grade of 0.035 opt: As company crush/agglomerate/stack, at a rate of 50,000 tons per month (or 12,500 tons per week). If continue this for ten months. And put fresh material on sprinkler every week. The operation will ramp up on recovery of gold at 433 oz for the first month followed up by 693 oz on the second month and peak at production of up to 875 oz for ten months and then taper off for last two months, as the heap becomes depleted. This would also mean moving of loaded carbon every week, which would contain over 200 oz, which would be sent to Metals Research for refining. This would give a steady inflow of revenue on a weekly basis of about $370,000 per week for eight to twelve months. The Bonanza Mine property includes the Harquahala and Golden Eagle mines, located approximately eight miles south of Salome, Arizona. The project totals 2,656 acres and has significant potential for gold and silver production in multiple phases moving forward. The Bonanza Mine is located where the Prolific Walker Lane and the Sonoran Geosyncline overlap with likely extensions of Carlin Trend and Mesquite-style mineralization generating Arizona’s biggest richest deposits. 공시 • May 03
Tombstone Exploration Corporation announced delayed 20-F filing On 05/02/2022, Tombstone Exploration Corporation announced that they will be unable to file their next 20-F by the deadline required by the SEC. 공시 • Apr 27
Tombstone Exploration Corporation Announces Results of Carbon Shipment Carrying Gold and Silver Tombstone Exploration Corporation announced the results of the processed and refined ore from Metalor USA that was shipped from the Bonanza Harquahala Mine on April 7, 2022. This is the second delivery of precious metals in 2022 and the third shipment will be sent on May 3, 2022. The results of the processed material from April 7, 2022 produced 456.80 oz of dore which delivered 83.34 oz of Au and 78.66 oz of Ag. The leach has been running 24/7 and continues as crushed rock and leach material are loaded onto the pad. The third shipment for processing the carbon and refining the gold and silver ore for 2022 is expected to be shipped on May 3, 2022. The Bonanza Mine property includes the Harquahala and Golden Eagle mines, located approximately eight miles south of Salome, Arizona. The project totals 2,656 acres and has significant potential for gold and silver production in multiple phases moving forward. The Bonanza Mine is located where the Prolific Walker Lane and the Sonoran Geosyncline overlap with likely extensions of Carlin Trend and Mesquite-style mineralization generating Arizona’s biggest richest deposits. 공시 • Aug 21
Tombstone Exploration Corporation Announces Second Pour with a Substantial Increase from Production At the Bonanza Harquahala Mine Tombstone Exploration Corporation announced in combination with Goldrock Resources Inc. and the Bonanza Mining Company the second pour from production. Production of 262.59 oz of Dore was stripped from the Bonanza’s activated carbon by Metals Research and sent to Metalor USA Refining Corp. for final disposition. This is more than a 300% increase from the 83.7 oz of Dore from the first pour announced on July 13, 2021. Reaching another milestone event with the changes that the company continue to make on the Bonanza Leach System, the company improve production as the project moves forward. The leaching commenced at the Bonanza Harquahala Mine on June 3, 2021, when pH levels increased to allow for safe sustained leaching. Approximately 35,000 tons of rock have been placed on the leach pad with the entire area under leach. Carbon has been placed in all four carbon columns and is collecting gold & silver from solution. The company continue to increase the production of gold, the Bonanza Mining Company will continue to stack and load the pad with an additional 465,000 tons of Crushed Rock. 공시 • Jul 15
Tombstone Exploration Corporation in Combination with Goldrock Resources Inc. and the Bonanza Mining Company Announces Start of Production at the Bonanza Harquahala Mine Tombstone Exploration Corporation announced in combination with Goldrock Resources Inc. and the Bonanza Mining Company the first pour from production. First results have been received from production in June that started at the Bonanza Harquahala Mine. Production of 83.7 oz of Dore was stripped from the Bonanza’s activated carbon by Metals Research and sent to Metalore Inc. for final disposition. First payment from the Dore is expected during the week beginning on July 12, 2021. This is a milestone event with improvement in production expected as the project continues to move forward. The leaching commenced at the Bonanza Harquahala Mine on June 3, 2021 when pH levels increased to allow for safe sustained leaching. Approximately 35,000 tons of rock have been placed on the leach pad with the entire area under leach. Carbon has been placed in all four carbon columns and is collecting gold & silver from solution. The Bonanza Mine property includes the Harquahala and Golden Eagle mines, located approximately eight miles south of Salome, Arizona. The project totals 2,656 acres and has significant underground workings. 공시 • Jun 09
Tombstone Exploration Corporation with Goldrock Resources Inc. and the Bonanza Mining Company Announces Leaching Has Commenced At the Bonanza Harquahala Mine Tombstone Exploration Corporation announced in combination with Goldrock Resources Inc. and the Bonanza Mining Company that the leach process has commenced. The leaching has commenced at the Bonanza Harquahala Mine which started on June 3, 2021 when the pH levels increased to allow for safe sustained leaching. Approximately 35,000 tons of rock have been placed on the leach pad with the entire area under leach. Carbon has been placed in all four carbon columns and is collecting gold & silver from solution. Bonanza expects to ship its first carbon in approximately two weeks depending on how fast the rock leaches and how quickly the carbon loads. The Bonanza Mine property includes the Harquahala and Golden Eagle mines, located approximately eight miles south of Salome, Arizona. The project totals 2,656 acres and has significant underground workings. Once leaching has started, periodic delivery of the carbon to the designated gold processing facility is expected and have fully committed processing and gold refiners in place. 