DATELINE RESOURCES LIMITED — Capital/Financing Update 2024

Aug 26, 2024

ASX Announcement

200m+ gold intersection in Colosseum North Pipe

Highlights

• 203.6 metres @ 1.03g/t Au, inc. 10.7m @ 8.17g/t Au in drillhole CM24-19a in the North Pipe at the Colosseum

• 192 metres @ 1.00g/t Au in drillhole CM24-18 in the North Pipe at the Colosseum

• North Pipe mineralisation is more evenly disseminated than in South Pipe

• Assay grades are generally higher than Mineral Resource Estimate (MRE) block grades from historical drilling.

• The North Pipe contains 603,000 oz out of the total 1.1 million ounces MRE at the Colosseum

• Results to be incorporated into the Colosseum Scoping Study that is underway

Dateline Resources Limited (Dateline or the Company) is pleased to announce diamond drill results from two holes drilled into the North Pipe at the Colosseum mine, located in San Bernardino County, California, US.

extensions of the mineralised zone and verify historical drill results undertaken in the late 1980’s prior to mine development. The data obtained will also be used in mine planning.

toward the east. The drillhole reached 317 metres below the bottom of the north pit bench at a dip of -60 degrees. The hole collared in the felsite breccia host rock returned 192.0 metres @ 1.00 g/t Au.

CM24-19a was drilled approximately 30 metres to the south of CM24-18 directed to the east at a dip of -80 degrees. The hole was terminated at 205.1 metres. Overall, CM24-19a intersected the same lithologies as CM24-18 but with increased feldspathic alteration in segments, which carried up to 33.4 g/t Au. CM24-19a returned 203.6 metres @ 1.03 g/t Au, with a high-grade section of 10.7 metres @ 8.17 g/t Au.

Dateline’s Managing Director, Stephen Baghdadi, commented:

significant widths of mineralisation intersected within the near vertical breccia pipe structure. There remains considerable potential to extend these broad zones of mineralisation.”

Contact

Colosseum Gold-REE Project*

(100% DTR, California, USA)

Sydney, NSW, 2000

27.1Mt @ 1.26g/t Au for 1.1Moz Au Over 67% in Measured & Indicated Mining studies underway Rare earths potential with geology similar to nearby Mountain Pass mine

• ASX announcement 6 June 2024

27 August 2024

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Figure 1: Drill traces and sections for North Pipe drilling, August 2024

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Figure 2: Cross section looking SSW through the north Pipe at Colosseum

When the Colosseum mine was operational in the late 1980’s and early 1990’s, the main focus was on the South Pipe, with only a relatively shallow pit developed at the North Pipe. At the time of closure in 1993 mining was suspended at the North Pipe with significant gold mineralisation in the base of the pit, as shown in Figure 2.

The broad, pipe-like mineralisation style may be potentially mined by either open pit or bulk underground methods, which the Company is currently investigating.

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Figure 3: Cross section looking SSW showing the outline of the breccia pipe in blue

The grades intersected in the two recent drillholes are generally higher than the block model grades in the mineral resource estimate, which were based on historical holes drilled in the 1980’s.

This can be seen in Figures 4 and 5 below.

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Figure 4: Section A-A’ showing drilling grades vs block model grades

Figure 5: Section B-B’ showing drilling grades vs block model grades

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Scoping Study Underway

The results of the drilling at the North Pipe will be used to update the existing MRE for the North Pipe. The North Pipe contains 603,000 oz out of the total 1.1 million ounces MRE at the Colosseum[1] .

The updated MRE for Colosseum will form the basis for the Scoping Study that the Company has commenced. The Study is assessing the potential for both open pit and underground developments.

Drillhole Collar Details

Hole ID	Easting	Northing	Elevation	Total Depth (m)
CM24-18	10820	22366	5703	317.0
CM24-19a	10758	22283	5701	205.1

This announcement has been authorised for release on ASX by the Company’s Board of Directors.

For more information, please contact:

Stephen Baghdadi Andrew Rowell Managing Director White Noise Communications +61 2 9375 2353 +61 400 466 226 www.datelineresources.com.au andrew@whitenoisecomms.com

Follow Dateline on X: https://twitter.com/Dateline_DTR

1 See the Company’s announcement dated June 6, 2024. The Company confirms that it is not aware of any new information or data that materially affects the information included in its June 6, 2024 announcement and that all material assumptions and technical parameters underpinning the estimates continue to apply and have not materially changed

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ASX Announcement

About Dateline Resources Limited

Dateline Resources Limited (ASX: DTR) is an Australian publicly listed company focused on mining and exploration in North America. The Company owns 100% of the Colosseum Gold-REE Project in California.

The Colosseum Gold Mine is located in the Walker Lane Trend in East San Bernardino County, California. On 6 June 2024, the Company announced to the ASX that the Colosseum Gold mine has a JORC-2012 compliant Mineral Resource estimate of 27.1Mt @ 1.26g/t Au for 1.1Moz. Of the total Mineral Resource, 455koz @ 1.47/t Au (41%) are classified as Measured, 281koz @1.21g/t Au (26%) as Indicated and 364koz @ 1.10g/t Au (33%) as Inferred.

The Colosseum is located less than 10km north of the Mountain Rare Earth mine. Work has commenced on identifying the source of the mantle derived rocks that are associated with carbonatites and are located at Colosseum.

Forward-Looking Statements

This announcement may contain “forward-looking statements” concerning Dateline Resources that are subject to risks and uncertainties. Generally, the words “will”, “may”, “should”, “continue”, “believes”, “expects”, “intends”, “anticipates” or similar expressions identify forwardlooking statements. These forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. Many of these risks and uncertainties relate to factors that are beyond Dateline Resources’ ability to control or estimate precisely, such as future market conditions, changes in regulatory environment and the behaviour of other market participants. Dateline Resources cannot give any assurance that such forward-looking statements will prove to have been correct. The reader is cautioned not to place undue reliance on these forward-looking statements. Dateline Resources assumes no obligation and does not undertake any obligation to update or revise publicly any of the forward-looking statements set out herein, whether as a result of new information, future events or otherwise, except to the extent legally required.

Competent Person Statement

Sample preparation and any exploration information in this announcement is based upon work reviewed by Mr Greg Hall who is a Chartered Professional of the Australasian Institute of Mining and Metallurgy (CP-IMM). Mr Hall has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to quality as a Competent Person as defined in the 2012 Edition of the "Australasian Code for Reporting Exploration Results, Mineral Resources and Ore Reserves" (JORC Code). Mr Hall is a Non-Executive Director of Dateline Resources Limited and consents to the inclusion in the report of the matters based on this information in the form and context in which it appears.

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Appendix 1: JORC Code, 2012 Edition – Table 1 report

Section 1 Sampling Techniques and Data

(Criteria in this section apply to all succeeding sections.)

Criteria	JORC Code explanation	Commentary
Sampling	• Nature and quality of	•As of 21/08/2024 the Colosseum Mine,
techniques	sampling (eg cut channels,	Colosseum Rare Metals, INC. has completed
	random chips, or specific	522.1 meters of drilling in 2 core holes. All of
	specialised industry standard	the drilling was done from surface using a
	measurement tools	diamond drill rig or reverse circulation drill rig.
	appropriate to the minerals	Industry standard core handling and chip
	under investigation, such as	sampling procedures were employed to
	down hole gamma sondes, or	ensure high quality samples.
	handheld XRF instruments,	•Core/chip sample boundaries were defined by
	etc). These examples should	changes in lithology, alteration, and
	not be taken as limiting the	mineralisation noted in logging.
	broad meaning of sampling.	•Collar to toe assays were taken and sent to
	• Include reference to	labs for analysis.
	measures taken to ensure	•Core was cut along the long axis leaving half
	sample representivity and the	for assay and half to be stored in cardboard
	appropriate calibration of any	core boxes.
	measurement tools or systems used.	•RC samples were on a 5-foot (1.52 meter) interval through a cyclone and riffle splitter to
	• Aspects of the determination	leave a 1-2 kg sample for assay and the rest
	of mineralisation that are	separated for storage.
	Material to the Public Report.	•Samples from drill holes were sent to ALS
	• In cases where ‘industry	Global and Paragon Geochemical in Reno,
	standard’ work has been	Nevada for sample preparation and assay.
	done this would be relatively	Samples were dried, weighed, crushed and
	simple (eg ‘reverse	split to obtain 250 gm. Samples were placed in
	circulation drilling was used	ring and puck grinder to produce 85% minus
	to obtain 1 m samples from	75-micron pulp. This material was blended on
	which 3 kg was pulverised to	clean cloth and packaged in paper pulp bags.
	produce a 30 g charge for fire	Using a pulp balance, a 30-gm sample was
	assay’). In other cases, more	weighted out for traditional fire assay. Samples
	explanation may be required,	were analyzed using standard fire assay for
	such as where there is	gold. Over limits were analyzed via gravimetric
	coarse gold that has inherent	analysis.
	sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may	•All samples followed a strict Chain of Custody. •Routine QAQC samples were inserted in the sample runs at a rate of 20%, comprising Certified Reference Materials from CDN
	warrant disclosure of detailed information.	Resource Laboratories Ltd., and verified blank granitic material.
		•Surface sampling of dump material was taken
		at random surrounding the Colosseum Pipes
		to test approximate grades of dumps.
		•Surface sampling within trenches at the Argos
		property were taken approximately every 15

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Criteria	JORC Code explanation	Commentary
		metres across the trench to test strontium and
		barium percentages within the celestite
		surface expressions.
		•Sampling practice is appropriate to the geology
		and mineralisation of the deposit and complies
		with industry best practice.
Drilling techniques	• Drill type (eg core, reverse	•The drilling program utilizes surface core
	circulation, open-hole	drilling.
	hammer, rotary air blast,	•The core drilling is being conducted with an
	auger, Bangka, sonic, etc)	Everdigm cat 4 drill with HQTT core tooling.
	and details (eg core	Triple tubes were used for the for all holes to
	diameter, triple or standard	increase recoveries. The drilling has been
	tube, depth of diamond tails,	completed by an experienced diamond drilling
	face-sampling bit or other	core driller.
	type, whether core is
	oriented and if so, by what
	method, etc).
Drill sample	• Method of recording and	•All drilling recoveries have been logged
recovery	assessing core and chip	and notated each run based on 3.05-
	sample recoveries and results	meter tooling.
	assessed.	•To maximize sample recoveries, use of
	• Measures taken to	triple tube and long chain polymer muds
	maximise sample	were used to increase recovery.
	recovery and ensure	•There has been no analysis between
	representative	sample recoveries and grade to date.
	nature of the
	samples.
	• Whether a relationship
	exists between sample
	recovery and grade and
	whether sample bias may
	have occurred due to
	preferential loss/gain of
	fine/coarse material.
Logging	• Whether core and chip	•Core samples were geologically logged.
	samples have been	Lithology, veining, alteration, mineralisation, and
	geologically and	weathering are recorded in the appropriate tables
	geotechnically logged to	of the drill hole database.
	a level of detail to	•Each core box was photographed dry and wet,
	support appropriate	after logging of unit and structures were notated
	Mineral Resource	on the core.
	estimation, mining	•Core was cut along the long axis using a
	studies and metallurgical	diamond saw, half-core was sampled, and half
	studies.	stored for reference.
	• Whether logging is	•Geological logging of core samples is
	qualitative or quantitative	qualitative and quantitative in nature.
	in nature. Core (or
	costean, channel, etc)
	photography.
	• The total length and percentage

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Criteria	JORC Code explanation	Commentary
	of the relevant intersections
	logged.
Sub-sampling	• If core, whether cut or	•All drill core samples were cut along the long
techniques and	sawn and whether quarter,	axis. The left side when looking down hole was
sample preparation	half or all core taken.	sampled. Samples were placed in a heavy-duty
	• If non-core, whether	poly sample bag. Each core sample placed in
	riffled, tube sampled,	heavy duty poly sample bag, noted interval width
	rotary split, etc and	in sample book, with a sample tag with the
	whether sampled wet or	corresponding sample number placed in the bag
	dry.	with the other tag stapled to the top of the bag.
	• For all sample types,	Sample bags were stapled along the top.
	the nature, quality and	Samples were sent by freight to ALS Global, or
	appropriateness of the	Paragon Geochemical in Reno, Nevada.
	sample preparation	•Routine QAQC samples were inserted at a 20%
	technique.	rate into the sample batches and comprised
	• Quality control procedures	Certified Reference Materials (CRMs) from CDN
	adopted for all sub-	Resource Laboratories Ltd. and verified blank
	sampling stages to	granitic material.
	maximise representivity of	•Rock samples sent to ALS Laboratories and
	samples.	Paragon Geochemical were dried, weighed,
	• Measures taken to ensure that	crushed, and split, with a split pulverized to
	the sampling is representative	better than 85% passing 75 microns. Samples
	of the in situ material collected,	were analyzed for trace elements using 4-acid
	including for instance results	digestion. Additionally, rocks samples were
	for field duplicate/second-half	analyzed by standard 30gm fire assay for gold
	sampling.	and silver.
	• Whether sample sizes are	•Sample size assessment was not conducted but
	appropriate to the grain size of	used sampling size which is typical for gold
	the material being sampled.	deposits.
Quality of assay	• The nature, quality and	•Samples were assayed by industry standard
data and	appropriateness of the	methods by ALS Global Laboratories, and
laboratory tests	assaying and laboratory	Paragon Geochemical, in Reno, Nevada.
	procedures used and whether	•Fire assays for gold were completed
	the technique is considered	using industry standard fire assay
	partial or total.	methodology.
	• For geophysical tools,	•External certified standards and blank material
	spectrometers, handheld XRF	were added to the sample submission.
	instruments, etc, the
	parameters used in
	determining the analysis
	including instrument make and
	model, reading times,
	calibrations factors applied and
	their derivation, etc.
	• Nature of quality control
	procedures adopted (eg
	standards, blanks, duplicates,
	external laboratory checks)

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Criteria		JORC Code explanation	Commentary
		and whether acceptable levels
		of accuracy (ie lack of bias)
		and precision have been
		established.
Verification	of	• The verification of significant	•Sampling, documentation, and sample submittal
sampling	and	intersections by either	were under the guidance and care of Graham
assaying		independent or alternative	Craig, GIT (Association of Professional Engineers
		company personnel.	and Geoscientists of Manitoba).
		• The use of twinned holes.	•Drilling, sample, and assay data is currently
		• Documentation of	stored in MX Deposit, a secured data
		primary data, data	management system through Seequent.
		entry procedures,
		data verification, data
		storage (physical and
		electronic) protocols.
		• Discuss any adjustment to
		assay data.
Location of data		• Accuracy and quality of surveys	•All drill hole collars are surveyed using differential
points		used to locate drill holes (collar	GPS survey equipment. The positions are accurate
		and down-hole surveys),	to within 10 cm x-y and height (z) to +/- 20 cm.
		trenches, mine workings and	•The holes are surveyed in UTM WGS 84
		other locations used in Mineral	coordinate system.
		Resource estimation.	•Down hole surveys will be done using a Reflex
		• Specification of the grid system	EZ-TRAC magnetic downhole survey tool on all
		used.	diamond drill holes. With collars surveyed using
		• Quality and adequacy of	Reflex TN-14 Azi-Aligner.
		topographic control.	•Sample locations were surveyed using UTM
			WGS 84 coordinate system.
Data spacing and		• Data spacing for reporting of	•The spacing and location of data is currently 5-
distribution		Exploration Results.	15 meter spacing according to previous
		• Whether the data spacing, and	Mineral Resource estimation completed by
		distribution is sufficient to	Barbara Carroll, CPG (American Institute of
		establish the degree of	Professional Geologists) of GeoGRAFX
		geological and grade continuity	Consulting, LLC.
		appropriate for the Mineral	•No sample compositing has been applied at this
		Resource and Ore Reserve	time.
		estimation procedure(s) and
		classifications applied.
		• Whether sample compositing
		has been applied.
Orientation of data in		• Whether the orientation of	•Drill holes are planned to be drilled along strike
relation to geological		sampling achieves unbiased	due to limited areas available to drill from.
structure		sampling of possible structures	Definition of structure location is the principal
		and the extent to which this is	goal.
		known, considering the deposit	•Sample orientation is deemed to be
		type.	representative for reporting purposes.
		• If the relationship between	•No bias is considered to have been
		the drilling orientation and the	introduced by the existing sampling

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Criteria	JORC Code explanation	Commentary
	orientation of key mineralised	orientation.
	structures is considered to
	have introduced a sampling
	bias, this should be assessed
	and reported if material.
Sample	• The measures taken to ensure	•All samples were taken and maintained under
security	sample security.	the constant care of Colosseum Rare Metals,
		INC. personnel. Samples were delivered to
		laboratories by a licensed transportation
		company.
Audits or	• The results of any audits or	•Drill hole sampling techniques and QAQC
reviews	reviews of sampling techniques	procedures have been developed and
	and data.	reviewed by Dale Sketchley, M.Sc., P. Geo. of
		Acuity Geoscience Ltd., Graham Craig, GIT.
		•The QAQC program has demonstrated its
		ability to catch errors.
		•A QAQC review will be completed for this program.
		•Mineral resource estimations and JORC 2022
		completed by Barbara Carroll, CPG.

Section 2 Reporting of Exploration Results

(Criteria listed in the preceding section also apply to this section.)

Criteria	JORC Code explanation	Commentary
Mineral tenement and	• Type, reference	• The Colosseum Mine project is located in T17N
land tenure status	name/number, location and	R13E Sec 10, 11, 14, 15, 22, 23 SB&M.
	ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title	•All tenements are 100% owned by Dateline Resources Limited or a wholly owned subsidiary and there exist production-based royalties as previously disclosed to ASX.
	interests, historical sites,
	wilderness or national park
	and environmental settings.
	• The security of the tenure held
	at the time of reporting along
	with any known impediments
	to obtaining a licence to
	operate in the area.
Exploration done by	• Acknowledgment and appraisal of	• Historical work has been completed by various
other parties	exploration by other parties.	mining companies since 1972.
		Draco Mines (1972-1974)
		Placer Amex (1975-1976)
		Draco Mines (1980)
		Amselco (1982-1984
		Dallhold Resources/Bond Gold (1986-1989

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Criteria	JORC Code explanation	Commentary
		Lac Minerals (1989-1994)
		•All the companies were reputable, well-known
		mining/exploration companies that followed the
		accepted industry standard protocols of the time.
		•Review of this work was completed by
		GeoGRAFX Consulting, LLC in 2022.
		•All previous work undertaken by others is non-
		JORC compliant.
Geology	• Deposit type, geological setting	•The Colosseum mine is hosted by Cretaceous
	and style of mineralisation.	aged breccia-pipe. The pipe contains aphanitic
		Cretaceous rhyolite flows, Pre-Cambrian
		granitic basement material, and Cambrian-
		Devonian dolomite clasts replaced by sulphide
		mineralisation.
		•The gold mineralisation occurs in brecciated
		felsite and sediment clast replaced by
		sulphides.
		•The Argos mine is a flat, shallow-dipping
		sedimentary strontium deposit hosted in
		celestite. The celestite bed is overlain by
		various surface sediments with volcanics,
		primarily mafic volcanics, on the footwall. The
		mine was previously trenched along two
		trenches running approximately east to west at
		1-3 metres in depth. There was one
		underground access mined historically that
		accessed from within the celestite layer to
		approximately 12 metres deep with limited
		east/west development at the bottom.
Drill hole	• A summary of all information	•See Table 1 within this report for details of
Information	material to the understanding	the drill holes and sample locations.
	of the exploration results
	including a tabulation of the
	following information for all
	Material drill holes:
	o easting and northing of the drill
	hole collar
	o elevation or RL (Reduced
	Level – elevation above
	sea level in metres) of
	the drill hole collar
	o dip and azimuth of the hole
	o down hole length and
	interception depth
	o hole length.
	• If the exclusion of this
	information is justified on the
	basis that the information is not
	Material, and this exclusion does

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Criteria	JORC Code explanation	Commentary
	not detract from
	the understanding of the report,
	the Competent Person should
	clearly explain why this is the
	case.
Data aggregation	• In reporting Exploration Results,	•Drill hole intercept lengths and grades
methods	weighting averaging techniques,	calculated using no more than four
	maximum and/or minimum	consecutive <0.2 g/t Au as the cutoff for
	grade truncations (eg cutting of	cumulative grade intervals.
	high grades) and cut-off grades
	are usually Material and should
	be stated.
	• Where aggregate intercepts
	incorporate short lengths of
	high-grade results and longer
	lengths of low-grade results,
	the procedure used for such
	aggregation should be stated
	and some typical examples of
	such aggregations should be
	shown in detail.
	• The assumptions used for any
	reporting of metal equivalent
	values should be clearly
	stated.
Relationship between	• These relationships are	•Drill holes are orientated along
mineralisation widths	particularly important in the	apparent strike of the breccia pipe
and intercept lengths	reporting of Exploration	due to limited drill pad locations.
	Results.	•Interception angles of the
	• If the geometry of the	mineralised structures are
	mineralisation with respect	estimated using core drilling
	to the drill hole angle is	intercepts and existing 3D models
	known, its nature should be	of the pipe orientation.
	reported.
	• If it is not known and only the
	down hole lengths are reported,
	there should be a clear
	statement to this effect (eg
	‘down hole length, true width not
	known’).
Diagrams	• Appropriate maps and	•Supporting figures have been included within the
	sections (with scales) and	body of this release.
	tabulations of intercepts
	should be included for any
	significant discovery being
	reported These should
	include, but not be limited to a
	plan view of drill hole collar
	locations and appropriate
	sectional views.

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Criteria	JORC Code explanation	Commentary
Balanced	• Where comprehensive	•Representative reporting of both low and high
reporting	reporting of all Exploration	grades and/or widths have been reported.
	Results is not practicable,
	representative reporting of
	both low and high grades
	and/or widths should be
	practiced avoiding misleading
	reporting of
	Exploration Results.
Other substantive	• Other exploration data, if
exploration data	meaningful and material, should
	be reported including (but not
	limited to): geological
	observations; geophysical survey
	results; geochemical survey
	results; bulk samples – size and
	method of treatment;
	metallurgical test results; bulk
	density, groundwater,
	geotechnical and rock
	characteristics; potential
	deleterious or contaminating
	substances.
Further work	• The nature and scale of	•At Colosseum, future work will include
	planned further work (eg	expanded drilling between the North and South
	tests for lateral extensions	Pipes, mapping, and sampling of open Pipe
	or depth extensions or	benches; as well as infill and expanded surface
	large-scale step-out drilling).	soil geochemistry, geological mapping, and
	• Diagrams clearly highlighting the	geophysics.
	areas of possible extensions,
	including the main geological
	interpretations and future drilling
	areas, provided this information
	is not commercially sensitive.

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