# GoldQuest Reports High-Grade Assay Results from Metallurgical Drilling at Romero Gold-Copper Project, Dominican Republic *2026-05-28T17:02:00-04:00* GoldQuest Reports High-Grade Assay Results from Metallurgical Drilling at Romero Gold-Copper Project, Dominican Republic Vancouver, British Columbia--(Newsfile Corp. - May 28, 2026) - _GoldQuest Mining Corp. (TSXV: GQC) (OTCQX: GDQMF)_("**GoldQuest**" or the "**Company**") is pleased to report 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. **Highlights:** - **High-grade assays from metallurgical drilling:**The five-hole program returned several high-grade gold-copper intervals from the central Romero deposit, including 38.6 m grading 45.01 g/t Au, 14.31 g/t Ag and 2.44% Cu in LTP-173, including 26.85 m grading 63.82 g/t Au, 18.93 g/t Ag and 3.23% Cu. - **Additional strong intercepts:**Hole LTP-172 returned 27.55 m grading 17.61 g/t Au, 6.07 g/t Ag and 1.40% Cu, including 10.1 m grading 38.71 g/t Au, 10.80 g/t Ag and 2.76% Cu. Hole LTP-174 returned 30.5 m grading 16.47 g/t Au, 2.79 g/t Ag and 1.59% Cu, including 11.6 m grading 34.46 g/t Au, 4.20 g/t Ag and 2.76% Cu. - **Positive local reconciliation:**An initial internal reconciliation exercise comparing the new drill results with the resource block model within 10 m diameter cylinders around the metallurgical holes indicates a positive comparison. Further details are provided in the reconciliation section and Table 2 below. - **Integration into ongoing technical work:**The new drilling is being evaluated for integration into the ongoing mineral resource estimate update and bankable feasibility study workstreams. - **Metallurgical performance supports Romero development path:**Geo-metallurgical domains tested to date are considered amenable to conventional comminution and flotation processing methods, with flotation test work consistent with recovery assumptions applied in the NI 43-101 Pre-Feasibility Study Technical Report for the Romero Gold Project, Dominican Republic, dated November 10, 2016 (the "**2016 PFS**"). - **Process optimization opportunities identified:**Test work indicates potential for coarser grinding requirements for flotation without loss of recovery, and preliminary results suggest target recoveries may be achievable without the inclusion of a gravity circuit, subject to completion of the test program. Luis Santana, CEO of GoldQuest, commented: "These metallurgical drill holes were completed to support ongoing technical studies and provide representative material for geo-metallurgical analysis. In addition to providing fresh information regarding mineralization within the Romero deposit, the results contribute to a broader technical understanding that will be incorporated into ongoing engineering and evaluation work. The localized favorable comparison with the existing block model also provides additional technical information that will be reviewed as part of ongoing studies." **Drill Results Summary:** Figure 1 shows the location of the drillholes and Table 1 summarizes selected significant assay intervals from the five metallurgical drill holes. Interval grades are calculated using uncapped assays. Intervals may not represent true widths. There is insufficient drilling to determine the exact orientation and thickness of the mineralized zones at this time. [](https://images.newsfilecorp.com/files/1663/299310_figureone.jpg) Figure 1: Metallurgical holes location To view an enhanced version of this graphic, please visit: [https://images.newsfilecorp.com/files/1663/299310_figureone.jpg](https://images.newsfilecorp.com/files/1663/299310_figureone.jpg) Table 1: Selected assay results from Romero metallurgical drill holes | **HoleID** | **Dip (°)** | **From (m)** | **To (m)** | **Interval (m)** | **Au g/t** | **Ag g/t** | **Cu %** | | --- | --- | --- | --- | --- | --- | --- | --- | | LTP-171 | -58 | 186.3 | 189.85 | 3.55 | 8.31 | 14.53 | 0.50 | | | | 284.15 | 312.5 | 28.35 | 3.20 | 22.58 | 2.07 | | | | | | | | | | | LTP-172 | -75 | **168.65** | **196.2** | **27.55** | **17.61** | **6.07** | **1.40** | | including | | **168.65** | **178.75** | **10.1** | **38.71** | **10.80** | **2.76** | | | | | | | | | | | LTP-172 | | 245.4 | 260 | 14.6 | 9.16 | 5.03 | 2.32 | | including | | **248.55** | **256.45** | **7.9** | **15