Dateline Resources : Colosseum REE Update

DATELINE RESOURCES LIMITED

REE Site Visit at Colosseum Confirms Possibility of

Large Underlying Carbonatite Occurrence

(ACN 149 105 653))

ASX Code: DTR

Highlights

• • Lab analysis confirms fenite outcrops within Colosseum claim boundary

• • Multiple mantle derived rock outcrops observed over 1.6km

  CAPITAL STRUCTURE

• • Possibility of large underlying carbonatite occurrence

  Share Price (1267/041/22) $0.017275 Shares on issue 44338 million Market Cap $5353.47mililliion

• • Follow up program of detailed structural mapping, sampling, and petrography underway

MAJOR SHAREHOLDERS

Dateline Resources Limited (ASX: DTR) (Dateline or the Company) is pleased to announce the Company's REE and carbonatite experts, Dr Anthony N. Mariano, PhD. and Mr Anthony Mariano Jr, have reported their findings of the February 2022 field work to the Company.

Southern Cross Exploration NL 215.82%

Mr. Mark Johnson AO 19.89%

Nationall Nomiinees Lttd 113.98%

The Mountain Pass REE mine is located ~10km south-east of the Colosseum mine. The Mountain Pass REE mine is the only operating REE mine in the USA. Messrs Mariano have been mapping, sampling and advising on REEs in the Mountain Pass area for over 50 years.

Stephen Baghdadii 56.92%

Commenting on the findings at Colosseum, Mr Mariano, said:

DIRECTORS & MANAGEMENT

Mark Johnson AO Chairman

Stephen Baghdadi Managing Director

"The presence of lithologies associated with mantle derived systems such as the Mountain Pass Alkaline-Carbonatite system have not only been confirmed to exist in the Colosseum claim area, but additional previously unknown outcrop occurrences have been found through this field investigation. The occurrence of multiple outcrops of these lithologies at a distance of almost a mile apart within the Colosseum claims suggest the possibility of a large underlying alkaline carbonatite occurrence"

Greg Halll Non-Executive Director

Tony Ferguson Non-Executive Director

Bill Lannen Non-Executive Director

Mark Ohlsson Company Secretary

CONTACT

Mark Ohlsson

Phone: [phone] Postal Address: P..O.. Boxx555533 South Hurstville NSW 2221

Email:[e-mail]

Figure 1. Looking north showing ~10km between Colosseum and Mountain Pass

Site Visit Observations

The geological team visited a number of prospects and outcrops within the Colosseum claims during the site visit. Several of these locations were based on historical observations, whilst others were visited based on radiometric data and earlier site visits.

The geological team observed and noted several different rock types associated with the outcrops, including fenites and trachytes (Figure 2). Both rock types are lithologically related to carbonatite complexes and the Company's REE experts believe the rocks are genetically related to the geological events that created the nearby Mountain Pass carbonatite complex.

Figure 2. Outcrop of Trachyte dyke (COR-6). Trachyte is a mantle derived rock unit

Sampling and Analysis

Four samples were collected and submitted for laboratory analysis (ICP/MS). Lab results showed the relative lanthanide distribution of the rare earth elements for three of the five samples analysed to be similar to rocks associated with carbonatite complexes (i.e. no negative europium (Eu) anomaly). Two other samples showed a negative Eu anomaly as would be expected in crustal derived granitic gneisses.

Figure 3. Lanthanide distribution from February 2022 samples. Distribution is from light (left) to heavy (right)

Petrographic and Cathodoluminescence Analysis

As well as the ICP/MS analysis, the samples were also subject to petrographic and cathodoluminescence analysis (CL). The CL was particularly revealing in that it showed the brilliant red luminescence in the feldspars from Fe3+ activation typical of fenites.

Figures 4 and 4a show CL micrographs of sample COR-8 and AMP 0-12 collected from within the Colosseum claim boundary. Figure 4b is a CL micrograph of sample taken from the Mountain REE mine

All three samples show similar brilliant red luminescence in the feldspars that are typical of fenites.

Figure 4. CL micrograph of fenite in COR-8 collected in February 2022

Figure 4a: CL micrograph of fenite in AMP 0-12 collected in the 1970's

Figure 4b CL micrograph of fenite taken from the Mountain Pass Rare Earth Mine in the 1970's

Summary and Next Steps

The findings from this site visit are encouraging for the following reasons:

• • The presence of lithologies associated with mantle derived systems such as the Mountain Pass Alkaline-Carbonatite system have not only been confirmed to exist in the Colosseum claim area, but additional previously unknown outcrop occurrences have been found through this field investigation.

  Stephen Baghdadi	Andrew Rowell
  Managing Director	White Noise Communications
  [phone]	[phone]
  www.datelineresources.com.au	[e-mail]

• • Several analytical techniques used in evaluation of the samples provide data confirming the nature of these rock types.

• • The occurrence of multiple outcrops of these lithologies at a distance of almost a mile apart within the Colosseum claims suggest the possibility of a large underlying alkaline carbonatite occurrence.

• • Future work to map the Colosseum claim area for the presence of these lithologies and investigate the possibility of structural controls related to their emplacement is warranted.

The Company intends to complete a detailed mapping program across all the claims in Q2 2022, before planning a drilling program.

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

For more information, please contact:

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

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.

About Dateline Resources Limited

Dateline Resources Limited (ASX: DTR) is an Australian publicly listed company focused on gold mining and exploration in North America. The Company owns 100% of the Gold Links and Green Mountain Projects in Colorado, USA and 100% of the Colosseum Gold Mine in California.

The Gold Links Gold Mine is a historic high-grade gold mining project where over 150,000 ounces of gold was mined from high-grade veins. Mineralisation can be traced on surface and underground for almost 6km from the Northern to the Southern sections of the project. The Company aims to delineate sufficient Mineral Resources to commence a small high-grade, low-cost operation by the end of 2021.

The Company owns the Lucky Strike gold mill, located 50km from the Gold Links mine, within the Green Mountain Project. It is proposed that ore from Gold Links would be transported to Lucky Strike for processing.

The Colosseum Gold Mine is located in the Walker Lane Trend in East San Bernardino County, California and produced approximately 344,000 ounces of gold (see ASX release 15 March 2021). Significant potential remains for extension to mineralization at depth.

JORC Code, 2012 Edition - Table 1

Section 1 Sampling Techniques and Data

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

Criteria

Sampling techniquesDrilling techniquesDrill sample recoveryLogging

JORC Code explanation

• • Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

• • Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

• • Aspects of the determination of mineralisation that are Material to the Public Report.

• • In cases where 'industry standard' work has been done this would be relatively simple (eg 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

• • Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

• • Method of recording and assessing core and chip sample recoveries and results assessed.

• • Measures taken to maximise sample recovery and ensure representative 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.

• • Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

• • Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

Commentary

• • All samples followed a strict Chain of Custody.

• • Sampling practice is appropriate to the geology and mineralization of the deposit and complies with industrybest practice.