Mr. Ron Hochstein reports

LUNDIN GOLD REPORTS FURTHER HIGH-GRADE INTERCEPTS FROM ITS 2023 EXPLORATION PROGRAMS

Lundin Gold Inc. has released additional results from its conversion and near-mine exploration programs at its 100-per-cent-owned Fruta del Norte (FDN) gold mine in southeast Ecuador. From the conversion program, drilling in the second quarter returned high-grade results while the near-mine program advanced the Bonza Sur and FDN South (FDNS) targets with encouraging drilling intercepts confirming their significant prospectivity. Highlights from the conversion and near-mine programs are outlined below.

Highlights from underground conversion holes drilled (not true widths):

• Drill hole FDN-C23-016 intersected 10.19 grams per tonne gold over 23.3 metres from 9.0 m and 7.58 g/t Au over 21.5 m from 191.5 m.
• Drill hole FDN-C23-021 intersected 12.48 g/t Au over 15.6 m from 7.0 m and 20.08 g/t Au over 12.8 m from 31.7 m.
• Drill hole FDN-C23-025 intersected 22.95 g/t Au over 16.4 m from 10.2 m, including:
  • 77.18 g/t Au over 1.9 m.
• Drill hole FDN-C23-028 intersected 11.33 g/t Au over 35.0 m from 69.0 m, including:
  • 76.04 g/t Au over 4.0 m.

Highlights from near-mine surface exploration holes drilled (not true widths):

• Drill hole FDNS-2023-024 (at FDNS) intersected 11.54 g/t Au over 7.1 m from 412.4 m, including:
  • 76.5 g/t Au over 1.0 m.
• Drill hole BLP-2023-025 (at Bonza Sur) intersected 7.59 g/t Au over 5.1 m from 212.9 m, including:
  • 12.43 g/t Au over 2.1 m.
• Drill hole BLP-2023-026 (at Bonza Sur) intersected 4.53 g/t Au over 8.8 m from 264.7 m, including:
  • 7.36 g/t Au over 2.0 m from 264.7 m;
  • 7.13 g/t Au over 2.0 m from 271.5 m.

Ron Hochstein, president and chief executive officer, commented: "I am pleased to announce additional results from Lundin Gold's 2023 exploration programs. The conversion program has successfully defined zones of high-grade mineralization within the FDN deposit that we expect will continue converting resources to reserves. Results from the near-mine program confirm the continuity and expansion potential of recent discoveries, Bonza Sur and FDNS, and improve our understanding of their mineralization geometry. Nine rigs are currently turning on our conversion and exploration programs, and a minimum of 43,000 metres of drilling are planned in 2023. This represents the largest drill program in the district since 2007."

Conversion program

Lundin Gold has been advancing its conversion program at FDN, with the objective of converting mineral resources to mineral reserves. In the past months, conversion drilling has focused on the southern extension of FDN, where high-grade intercepts are associated mainly to vein and/or veinlet zones hosted in volcanic or porphyritic intrusive rocks. Drilling results from the program have significantly increased confidence in the geologic model of the southern extension of the deposit, and have revealed a vein-type higher-grade mineralization within the mineral inferred envelope. The 2023 program is planned to comprise approximately 7,600 metres of drilling, and since January, a total of 4,612 metres across 30 drill holes have been completed.

Near-mine exploration program

The near-mine program focuses on exploring sectors located along trend of the FDN deposit and within extensions of its major controlling structures. Initial drill results published in January and May (see news releases published on Jan. 26 and May 4, 2023) confirmed the discovery of two new mineralized zones to the south of the FDN deposit, FDNS and Bonza Sur. In recent months, results from the near-mine program have confirmed continuity of mineralization at both targets and have improved the company's understanding of the geometry of these vein systems. In 2023, a total of 12,363 metres across 24 holes, from surface and underground, have been completed. Results are still pending for some of the reported drill holes.

FDN South (FDNS)

At FDNS, progress was made in delineating this buried epithermal mineralization located immediately south of the current resource envelope of FDN and to the west of the East fault. Six new drill holes were completed during the quarter and reveal the occurrence of a series of subparallel mineralized veins disposed in the northeastern to southwestern direction, showing similar hydrothermal alteration to that found at FDN. This vein system remains open along strike to the southwest, as well as along the downdip continuity, below the Suarez basin cover. Importantly, improvements in understanding the veins' geometry have allowed for a redefinition of the drilling program. Drilling at FDNS is continuing with one rig turning.

Bonza Sur

At Bonza Sur, drilling is enabling expansion of this target located one kilometre south of FDN. Five new drill holes have been completed, and results included multiple exciting intersections associated with veins/veinlets of quartz and sulphides (mainly sphalerite and galena), minor chalcedony, and manganoan-carbonate. Mineralization has been intercepted for 500 metres along strike from north to south and 300 metres along the downdip, and remains open in all directions. Drilling at Bonza Sur is planned to continue to focus on the 1.2 kilometre-long soil geochemical anomaly to the south, and a systematic follow-up will be initiated focused on the higher-grade intercepts returned from this target. Two rigs are currently turning at Bonza Sur.

Exploring for new targets

The near-mine exploration program has also discovered new targets of interest through a detailed geological interpretation of exploration data and additional surface work. A drill program was initiated in the second quarter and aims to test the high-potential targets near the FDN deposit. Five drill holes, four from underground and one from surface, were completed in the second quarter and intercepted zones of hydrothermal alteration hosted along the downdip extension and to the east of FDN. The program is continuing with two rigs turning, and is currently testing the FDN North and FDN East targets.

Regional exploration program

The 2023 regional exploration program continues to advance in the southern region of the Suarez basin with a total of 2,796 metres completed to date. Targets of interest, such as Quebrada La Negra and Crisbel, located along the basin's western border, have been the primary focus. The 2023 regional drilling program comprises 12,500 metres of drilling, and a second rig was recently added to the program to advance exploration at additional targets.

Qualified person

The technical information contained in this news release has been reviewed and approved by Andre Oliveira, PGeo, vice-president, exploration, of the company, who is a qualified person in accordance with the requirements of National Instrument 43-101.

Samples consist of half HQ- and NQ-size diamond core that are split by diamond saw on site, prepared at the ALS laboratory in Quito, and analyzed by 50-gram fire assay and multielement (ICP-AES/ICP-MS) at the ALS laboratory in Lima, Peru. The quality assurance/quality control program of Lundin Gold includes the insertion of certified standards of known gold content, blank and duplicate samples. The remaining half core is retained for verification and reference purposes. For further information on the assay, QA/QC and data verification procedures, please see Lundin Gold's annual information form dated March 31, 2023, filed under the company's profile on SEDAR.

About Lundin Gold Inc.

Lundin Gold, headquartered in Vancouver, Canada, owns the Fruta del Norte gold mine in southeast Ecuador. Fruta del Norte is among the highest-grade operating gold mines in the world.

The company's board and management team have extensive expertise in mine operations and are dedicated to operating Fruta del Norte responsibly. The company operates with transparency and in accordance with international best practices. Lundin Gold is committed to delivering value to its shareholders while simultaneously providing economic and social benefits to impacted communities, fostering a healthy and safe workplace, and minimizing the environmental impact. The company believes that the value created through the development of Fruta del Norte will benefit its shareholders, the government and the citizens of Ecuador.

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