Loncor Gold Forecasts Continued Growth For Adumbi Through Positive Underground Exploration Estimates

• Exploration Target of Adumbi Underground estimated to be in the range of 8.9 million tonnes to 9.6 million tonnes grading from 4.7 g/t Au to 4.9 g/t Au below USD1,600/oz pit shell

TORONTO, Dec. 19, 2023 /CNW/ - Loncor Gold Inc. ("Loncor" or the "Company") (TSX: LN) (OTCQX: LONCF) (FSE: LO51) announces that its priority exploration target below the Adumbi USD1,600/oz pit shell is estimated be in a range from 8.9 million tonnes to 9.6 million tonnes grading from 4.7 g/t Au to 4.9 g/t Au below USD1,600/oz pit shell.

Figure 1: Adumbi Longitudinal Section Showing Increase in BIF True Thickness (M) with Depth (CNW Group/Loncor Gold Inc.)

Figure 2: Adumbi Longitudinal Section with Contours of True Thickness X Grade Product (GM) (CNW Group/Loncor Gold Inc.)

Loncor's Chief Executive Officer, John Barker, commented: "Between 2020 and November 2021 the relatively high-grade resource at Loncor's Adumbi deposit surged from 1.36 million ounces to 3.66 million ounces of gold, with 1.88 million ounces being converted from inferred into indicated at a conversion rate of 95%. An assessment of the area below these resources suggests there's the potential to continue the significant growth given the outlined underground exploration target.

The recent announcement of the C$13.5 million sale of the non-core asset of Makapela, provides Loncor with funding to further explore, drill and expand the Company's flagship Adumbi deposit. Adumbi currently has an indicated mineral resource of 1.88 million ounces of gold (28.185 million tonnes grading 2.08 g/t Au), and an inferred mineral resource of 1.78 million ounces of gold (20.83 million tonnes grading 2.65 g/t Au) – all within the pit shell, with 84.68% of these resources being attributable to Loncor, 10% to the government and a mining permit already in place."

The Adumbi resource remains open at depth below the USD1,600 pit shell (maximum depth of pit shell bottom 550 metres below surface), with the Company's estimates of the potential underground exploration target suggesting it could contain between 8.9 million tonnes to 9.6 million tonnes grading 4.7 g/t Au to 4.9 g/t Au to a depth of 800 metres. These potential quantities and grade are conceptual in nature as there has been insufficient exploration to define a mineral resource and it is uncertain if further exploration will result in the Adumbi underground exploration target being delineated as a mineral resource.

The gold mineralisation below the USD1,600 pit shell at Adumbi is considered Loncor's principal "exploration target" to generate additional mineral resources. Near the bottom of the pit and below the pit shell, eleven core holes have been drilled which demonstrate that the favourable gold mineralised Banded Ironstone Formation ("BIF") host is thickening at depth below the pit shell with grades and thicknesses potentially amenable to underground mining (see Table 1 and Figures 1 and 2 below)

Table 1: Adumbi Core Holes used to Estimate "Exploration Potential" below the USD1,600/oz Pit Shell

Hole Number	Intersected Width(m)	True Thickness(m)	Gold Grade (g/t)	Location
LADD004	28.00 20.30	22.68 16.44	3.26 2.83	Above base of pit
LADD007	55.43 Incl 12.45	49.89 11.08	2.76 8.11	Above base of pit
LADD009	32.15 15.36	26.65 12.59	6.17 3.73	Above base of pit
LADD012	13.45 4.05	11.57 3.48	3.63 4.73	Below base of pit
LADD013	20.00 8.20	17.00 6.97	4.21 4.71	Above base of pit
LADD014	11.80	9.20	2.97	Below base of pit
LADD016	25.59 Incl. 6.09	17.66 4.20	2.39 4.78	Below base of pit
LADD026	22.03 11.20	16.30 8.29	5.11 4.93	Below base of pit
SADD050	12.69	10.67	5.51	Above base of pit
SADD052	12.15	7.01	3.24	Above base of pit
SADD053	9.27 23.45	5.70 14.43	3.71 6.08	Above base of pit

Loncor's independent geological consultants Minecon Resources and Services Limited undertook the Adumbi underground exploration target tonnage and grade estimation ranges. The Adumbi 3-dimensional ("3-D") model was constructed using cross sectional and horizontal flysch plans of the geology and mineralization and was used to assist in constraining the 3-D geological model. This underground exploration target has been estimated to a maximum depth of 800 metres below surface.

Quality Control and Quality Assurance re Adumbi Deposit Drill Results 

Drill cores for assaying were taken at a maximum of one-metre intervals and were cut with a diamond saw, with one-half of the core placed in sealed bags by Company geologists and sent to the Company's on-site sample preparation facility. The core samples were then crushed down to 80% passing minus 2 mm and split with one half of the sample up to 1.5 kg pulverized down to 90% passing 75 microns. Approximately 150 grams of the pulverized sample was then sent to the SGS Laboratory in Mwanza, Tanzania (independent of the Company). Gold analyses were carried out on 50g aliquots by fire assay. In addition, check assays were also carried out by the screen fire assay method to verify high-grade sample assays obtained initially by fire assay. As part of the Company's QA/QC procedures, internationally recognized standards, blanks and duplicates were inserted into the sample batches prior to submitting to SGS Laboratory.

Qualified Person

Peter N. Cowley, who is President of Loncor and a "qualified person" as such term is defined in National Instrument 43-101, has reviewed and approved the technical information in this press release.

Technical Reports

Additional information with respect to the Company's Adumbi deposit (and other properties of the Company within its Imbo Project) is contained in the technical report of New SENET (Pty) Ltd and Minecon Resources and Services Limited dated December 15, 2021 and entitled "NI 43-101 Preliminary Economic Assessment of the Adumbi Deposit in the Democratic Republic of the Congo".  A copy of the said report can be obtained from SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov.  

Additional information with respect to the Company's Makapela Project, and certain other properties of the Company in the Ngayu gold belt, is contained in the technical report of Venmyn Rand (Pty) Ltd dated May 29, 2012 and entitled "Updated National Instrument 43-101 Independent Technical Report on the Ngayu Gold Project, Orientale Province, Democratic Republic of the Congo".  A copy of the said report can be obtained from SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov. 

About Loncor Gold Inc. 

Loncor is a Canadian gold exploration company focussed on the Ngayu Greenstone Gold Belt in the northeast of the Democratic Republic of the Congo (the "DRC").  The Loncor team has over two decades of experience of operating in the DRC.  Loncor's growing resource base in the Ngayu Belt currently comprises the Imbo and Makapela Projects.  At the Imbo Project, the Adumbi deposit holds an indicated mineral resource of 1.88 million ounces of gold (28.185 million tonnes grading 2.08 g/t gold), and the Adumbi deposit and two neighbouring deposits hold an inferred mineral resource of 2.090 million ounces of gold (22.508 million tonnes grading 2.89 g/t Au), with 84.68% of these resources being attributable to Loncor.  Following a drilling program carried out by the Company at the Adumbi deposit in 2020 and 2021, the Company completed a Preliminary Economic Assessment ("PEA") of the Adumbi deposit and announced the results of the PEA in December 2021.  The Makapela Project (which is 100%-owned by Loncor and is located approximately 50 kilometres from the Imbo Project) has an indicated mineral resource of 614,200 ounces of gold (2.20 million tonnes grading 8.66 g/t Au) and an inferred mineral resource of 549,600 ounces of gold (3.22 million tonnes grading 5.30 g/t Au).  On December 13, 2023, Loncor announced the sale of the Makapela Project, which sale is expected to close before the end of February 2024 (see the Company's December 13, 2023 press release). 

Additional information with respect to Loncor and its projects can be found on Loncor's website at www.loncor.com. 

Cautionary Note to U.S. Readers

National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") is a rule of the Canadian Securities Administrators which establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects.  Unless otherwise indicated, all scientific and technical information concerning Loncor's mineral properties contained in this press release has been prepared in accordance with NI 43-101 and the Canadian Institute of Mining, Metallurgy and Petroleum Classification System.  These standards differ from the requirements of the U.S. Securities and Exchange Commission (the "SEC"), and scientific and technical information concerning Loncor's mineral properties contained in this press release may not be comparable to similar information disclosed by U.S. companies.  U.S. investors are urged to consider closely all of the disclosure in the Company's Form 20-F Annual Report (File No. 001- 35124) and other reports filed pursuant to the United States Securities Exchange Act of 1934, as amended, which may be secured from the Company, or from the SEC's website at http://www.sec.gov/edgar.shtml. 

Cautionary Note Concerning Forward-Looking Information

This press release contains forward-looking information.  All statements, other than statements of historical fact, that address activities, events or developments that the Company believes, expects or anticipates will or may occur in the future (including, without limitation, statements regarding the potential quantity and grade of the Adumbi underground exploration target, further development of the Company's Adumbi deposit, mineral resource estimates, potential mineral resource increases, potential mineralization, drill results, future exploration and development) are forward-looking information.  This forward-looking information reflects the current expectations or beliefs of the Company based on information currently available to the Company.  Forward-looking information is subject to a number of risks and uncertainties that may cause the actual results of the Company to differ materially from those discussed in the forward-looking information, and even if such actual results are realized or substantially realized, there can be no assurance that they will have the expected consequences to, or effects on the Company.  Factors that could cause actual results or events to differ materially from current expectations include, among other things, risks that the Adumbi underground exploration target will not be delineated as a mineral resource or will be less than the current estimated ranges of potential tonnage and grade (potential quantities and grades for the Adumbi underground exploration target disclosed in this press release are conceptual in nature as there has been insufficient exploration to define a mineral resource and it is uncertain if further exploration will result in the target being delineated as a mineral resource), the possibility that future exploration (including drilling) or development results will not be consistent with the Company's expectations, risks related to the exploration stage of the Company's properties, uncertainties relating to the availability and costs of financing needed in the future, failure to establish estimated mineral resources (the Company's mineral resource figures are estimates and no assurances can be given that the indicated levels of gold will be produced), changes in world gold markets or equity markets, political developments in the DRC, gold recoveries being less than those indicated by the metallurgical testwork carried out to date (there can be no assurance that gold recoveries in small scale laboratory tests will be duplicated in large tests under on-site conditions or during production), fluctuations in currency exchange rates, inflation, changes to regulations affecting the Company's activities, delays in obtaining or failure to obtain required project approvals, the uncertainties involved in interpreting drilling results and other geological data and the other risks disclosed under the heading "Risk Factors" and elsewhere in the Company's annual information form dated March 31, 2023 filed on SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov.  Forward-looking information speaks only as of the date on which it is provided and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking information, whether as a result of new information, future events or results or otherwise.  Although the Company believes that the assumptions inherent in the forward-looking information are reasonable, forward-looking information is not a guarantee of future performance and accordingly undue reliance should not be put on such information due to the inherent uncertainty therein.

SOURCE Loncor Gold Inc.

For further information, please visit our website at www.loncor.com or contact: John Barker, CEO, [phone], Arnold Kondrat, Executive Chairman, [phone]