Recent Insider Transactions Derivative • Jun 14
CEO & Director exercised options to buy CA$1.4m worth of stock. On the 12th of June, Luis Santana exercised options to buy 2m shares at a strike price of around CA$0.18, costing a total of CA$292k. This transaction amounted to 102% of their direct individual holding at the time of the trade. Since September 2025, Luis' direct individual holding has increased from 552.00k shares to 1.59m. Company insiders have collectively sold CA$2.8m more than they bought, via options and on-market transactions in the last 12 months. Announcement • May 30
GoldQuest Mining Corp. Reports High-Grade Assay Results from Metallurgical Drilling At Romero Gold-Copper Project GoldQuest Mining Corp. has reported assay results from five metallurgical drill holes completed at the Company's 100%-owned Romero Gold-Copper Project in San Juan Province, Dominican Republic. The metallurgical holes, LTP-171 through LTP-175, were drilled to provide fresh representative core for the ongoing geo-metallurgical program and bankable feasibility study work. The assay results confirm multiple high-grade gold-copper intervals within the Romero deposit, while metallurgical test work completed to date continues to support conventional processing assumptions and ongoing process design work. The geo-metallurgical program is a key component of the ongoing bankable feasibility study and has focused on representative samples from defined domains within the Romero deposit. The work completed to date indicates that the tested geo-metallurgical domains are all amenable to conventional comminution and flotation processing methods, supporting the process route contemplated for Romero. Comminution testing has identified variation in SAG work indices, particularly for softer ores, providing additional information to better align operating cost assumptions with geology. Flotation test work has identified opportunities to evaluate coarser grinding requirements without loss of recovery, while remaining consistent with recovery assumptions applied in the 2016 PFS. Preliminary test work also suggests that target recoveries may be achievable without the inclusion of a gravity circuit, which could simplify the final flowsheet if confirmed by the remaining work. Mineralogical investigations have been completed to support metallurgical interpretation and address previously identified data gaps, and tailings samples have been generated for ongoing rheological and paste backfill test work. The results reported remain preliminary and subject to completion of the test program, engineering analysis and integration into the bankable feasibility study. Final metallurgical conclusions and design criteria will be reported as the program advances. The metallurgical drill holes were completed as part of the Company's broader geo-metallurgical program for Romero. The program is designed to provide fresh material for comminution, flotation, variability and life-of-mine composite test work, as well as additional geological information to support the feasibility study. GoldQuest is evaluating the integration of the new metallurgical drilling into the ongoing mineral resource estimate update and related feasibility study workstreams. Core from these holes was partially assayed as part of the metallurgical test program at ALS Metallurgy at Kamloops, Canada, and the remainder of the core was assayed at Bureau Veritas. As part of the Company's Quality Assurance and Quality Control procedures, the Company reviews results from Certified Standard Reference Materials, which are inserted at a rate of five per 100 samples. Within the results disclosed herein there were no samples with results outside of the recommended tolerances for the Standards. In GoldQuest's drill programs, composite intervals were chosen using a combination of geological criteria and mineralization, averaging around two metres core length. The drill core is cut in half with one half of the core sample shipped to Bureau Veritas Labs by GoldQuest technicians. The remaining half of the core is kept at the Company core shack for future assay verification, or any other further investigation. Assays within intervals below the 0.005 g/t detection limit for Au were given a 0.0025 g/t value. All drill samples were prepared and screened by ACME Labs (Vancouver); metallic fire assay and multi-element ICP-MS were assayed by Bureau Veritas Laboratories (Vancouver). Gold values are determined by standard fire assay with an AA finish, or, if over 10.0 g/t Au, were re-assayed and completed with a gravimetric finish. Copper and zinc values exceeding 0.2% were re-assayed with a 4-acid digestion and AAS finish. When zinc values exceeded 10% a classic titration was carried out for zinc. QA/QC included the insertion and continual monitoring of numerous standards, blanks and duplicates into the sample stream, at random intervals within each batch. The scientific and technical information contained in this press release has been reviewed and approved by Leandro Sastre, P. Geo., VP of Exploration of GoldQuest, and Franco Martucci, P.E., Senior Metallurgical Engineer. Mr. Sastre is responsible for the exploration and geological information, and Mr. Martucci is responsible for the metallurgical information. Each is a Qualified Person for their respective technical information under NI 43-101 - Standards of Disclosure for Mineral Properties. 
