ASX Release

23 May 2022

RESTRUCTURE OF MT CARRINGTON EARN-IN AND OPTION TO JV AGREEMENT

TO FOCUS ON LARGER SCALE SILVER - GOLD POLYMETALLIC OPPORTUNITY

onlyHighlights

Thomson Resources Ltd ("Thomson") (ASX:TMZ, OTCQB:TMZRF) and White Rock Minerals Ltd

("White Rock") (ASX:WRM, OTCQX:WRMCF) finalise and execute a variation ("Amended

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Agreement") to amend the original Earn-in and JV Agreement entered into on 1 May 2021

("Initial Agreement") 1.

Thomson and White Rock see greater benefit to both companies by capturing the polymetallic

value of the known Mt Carrington deposits into Thomson's New England Fold Belt Hub and

Spoke central processing concept ("NEFBHS").

The Amended Agreement now allows Thomson to focus expenditure on advancement of the

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"Mt Carrington Polymetallic Project" through exploration and development activities.

Thomson will initially focus on integrating the known gold-silver-zinc-copper mineralisation at

Mt Carrington into the Company's NEFBHS Mineral Resource Estimates ("MRE's") where the

Company is targeting an aggregate of +100 Moz Silver equivalent resource base to catalyse

potential development of a central processing facility.

Existing Mt Carrington metallurgical and JORC 2012 and 2004 MRE's for the Mt Carrington

Project deposits will be updated under the JORC 2012 code to report combined gold-silver-zinc-

copper mineralisation and incorporated into the NEFBHS centralised processing pathway study

that is currently underway.

The Amended Agreement changes the earn-in structure to now be a 2-stage exploration earn-

in and option to joint venture ("Joint Venture Agreement" or "JVA") whereby Thomson can earn-

in up to 70% of White Rock's Mt Carrington gold - silver - base metal project ("Project") and at

Thomson's election form a Joint Venture as outlined in the JVA.

o Stage 1 - Thomson earning 51% in the Project:

For

Thomson to complete at least $5,000,000 in expenditure, comprising

exploration activities, care and maintenance operational activities and care and

maintenance minor capital works;

Term of Stage 1 is up to 3 years from 7 March 2022;

o Stage 2 - Thomson can elect to earn a further 19% in the Project:

Thomson to complete at least a further $2,000,000 in expenditure, comprising

exploration activities, care and maintenance operational activities and care and

maintenance minor capital works;

Term of Stage 2 is 2 years from the date of election to proceed with Stage 2;

White Rock is free-carried through the exploration earn-in period. Thomson will continue management of the Project and will have sole responsibility for keeping the Project in good standing and funding the operational site care and maintenance costs (major capital items to be borne in equal shares by both companies) until formation of the Joint Venture, be that on a 51:49 or 70:30 basis.

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"We strongly believe that Mt Carrington has the potential to become an important part of our centralised processing approach, which in turn will provide a stronger future for the Mt Carrington Project."
"Thomson appreciates White Rock's understanding of our thinking on this and in supporting us with a restructure of the earn-interms to enable this exploration opportunity to happen.
"Further we really think that the broader Mt Carrington polymetallic picture will fit in well with our New England Fold Belt Hub and Spoke strategy and we have been keen to explore this further. This has not been possible under the structure of the original agreement.

ASX Release

23 May 2022

onlyDISCUSSION

Thomson Resources Ltd (ASX:TMZ, OTCQB:TMZRF) ("Thomson") and White Rock Minerals Ltd (ASX:WRM, OTCQX:WRMCF) ("White Rock") are pleased to advise that they have amended the original Mt Carrington Earn-

in and JV Agreement ("Amended Agreement") which the parties had entered into on 1 May 2021 ("Initial Agreement")1. This Amended Agreement now provides for a 2-stageexploration earn-inand option to joint

venture agreement ("Joint Venture Agreement") focused on exploration activities on White Rock's Mt Carrington gold-silver-base metal project ("Project"). Under the Amended Agreement Thomson will still be

able to earn up to 70% of the Project in two stages and, at Thomson's election, to form a Joint Venture to then usefund on a pro-ratabasis, mine development and further exploration of the very prospective Mt Carrington leases

for gold-silver and base metal mineralisation (see end of this Release for transaction details).

The Mt Carrington, Texas District2, Conrad3 and Webbs4 projects all host significant silver-gold-base metal resources and compelling silver, gold and base metal exploration potential and are clustered in the New England region of north-eastern NSW and southern Queensland. Despite their proximity to one another and attractive commodity mix, these projects have never been consolidated under the one operator and so have to date remained largely undeveloped.

personalThomson has aggressively pursued a consolidation strategy in this region to bring these and other key resources

together into an overarching project with a large precious metal (silver-gold), base and technology metal (silver, zinc, lead, copper, tin) resource base that could be potentially developed and centrally processed under Thomson's "New England Fold Belt Hub and Spoke Strategy" ("NEFBHS") (Figure 1).

David Williams, Executive Chairman of Thomson said:

"The work we have been able to undertake during the first phase of the earn-in agreement has given us a really good feel for and understanding of the Mt Carrington site and how best to develop the Project. We consider that the whole Project has a lot of unrealised base metal potentiality along with the silver and gold. By pursuing solely the gold first production this value would not be captured.

ForMatt Gill, Managing Director & CEO of White Rock said:

"White Rock is extremely pleased to continue to partner with a visionary group like Thomson Resources. The JV partners have worked extremely well together, sharing a common vision for this project, and we wish to see this alliance continue. They have a clear strategy to unlock the potential from the consolidation of various gold and silver assets in and around our advanced Mt Carrington project in NSW. We also believe that a re-focus on the broader exploration potential of the Mt Carrington project can unlock further value and enhance the project's development and success.

"With the merger between White Rock and AuStar Gold (a significant landholder and with a high-grade gold production and exploration tenement profile in the prolific Victorian Goldfields) now successfully completed, and diamond drilling occurring at the high-grade gold Morningstar underground gold mine, continuing to joint venture our Mt Carrington asset will allow White Rock to focus on this significant Victorian gold production and exploration opportunity as well as our exciting projects in Alaska."

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ASX Release

23 May 2022

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Figure 1: Location of Mt Carrington JV project in relation to Thomson's 100% owned hub and spoke projects

Mt Carrington Project History

The Mt Carrington gold-silver-base metal project is located 5km from the township of Drake in northern NSW on Forthe Bruxner Highway. The Project is located 1 hour from the regional centers of Casino and Tenterfield in NSW and importantly located within potential trucking distance of Thomson's 100% owned Texas District, Conrad and

Webbs silver base metal projects (Figure 1).

Mt Carrington is one of a number of gold-silver +/- base metal districts that formed along the east coast of Australia during the Permian age back arc extensional volcanic basins. Notable examples of these deposits include the Cracow gold mine (2.5Moz Au @ 4.97g/t Au5,6,7,8,9, Mt Carlton gold mine (~1.2 Moz Au @ ~2.46 g/t Au, 12Moz Ag @ 24g/t Ag, 22Kt Cu @ 0.15% Cu 9) and historic Mt Chalmers volcanogenic massive sulphide.

There has been a significant history of gold-silver and copper mining at Mt Carrington starting in 1853 and with modern small scale open pit mining by Mt Carrington Mines from 1974 to 1990 (see Annexure 1 for a synopsis of the district's history). The Mt Carrington district hosts 8 known precious and base metal deposits.

In 200810 Rex Minerals Ltd ("RXM") announced a JORC 2004 gold - silver Mineral Resource Estimate ("MRE") for Strauss, Kylo, Guy Bell, Lady Hampden, Silver King and White Rock deposits based on historic data and a series of validation diamond drill holes completed by RXM. In 201211 and 201312,13 White Rock announced an upgraded JORC 2004 gold - silver MRE for Strauss, Kylo, Lady Hampden, Silver King and White Rock deposits, plus a maiden

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part of the NEFBHS centralised processing concept.
immediate priority for re-evaluationof the combined gold-silver-copper-zinc-leadMineral Resources as
Gladstone-Lady Hampden-SilverKing (Figure 3), as components of a zoned metal district, and an
3) highlighted the "Mt Carrington Polymetallic Core Zone" deposits of Kylo-Strauss-Guy Bell-MtCarrington-
tonnage high value gold copper mineralisation of this style at Mt Carrington is warranted; and
Late Cretaceous back arc extensional volcanic belt in Turkey. Suggesting exploration for concealed small
grade gold-copperdeposit (9.5 Mt at 9.84 g/t Au, 1.64% Cu17) hosted in a similar geological setting in the
geological characteristics of the Strauss - Kylo mineralisation to the recently discovered Hot Maden high-
intermediate sulfidation epithermal affiliation, drawing attention to striking similarities of some
2) identified the conceptual potential for the discovery of further gold - silver mineralisation with low to
caldera setting (Figure 2);
potential for discovery of new gold, silver, copper, zinc mineralisation in this very permissive volcanic
that outside the known deposits, there has been little modern systematic exploration, highlighting the
within the White Rock mining leases and White Rock's and Thomson's Exploration Licences. Emphasising
1) affirmed the larger district scale polymetallic (Au Ag Cu Zn Pb) prospectivity of the Mt Carrington Project
The JORC 2012 gold-silverMRE update culminated in a Prefeasibility Study ("PFS") and an updated PFS focused on developing a modest size CIL gold only operation for the Kylo and Strauss deposits14,15,16, with a plan to later
usevaluate the potential development of the Mt Carrington silver resources.
Mt Carrington Potential
Initial review of White Rock's extensive data for the Mt Carrington project by Thomson's geoscience consultants, Global Ore Discovery:
personalFor
onlyMRE for White Rock North and Red Rock deposits, all based on historic data and a series of diamond drill holes completed by White Rock. In 201714 and 202015 White Rock announced an updated Kylo and Strauss gold focused MRE under the JORC 2012 reporting code.
During this overall phase of exploration, there was a 140% increase to the gold resource and 400% increase to the silver resource compared to previous estimates10,15. While the MRE calculations included zinc, copper and lead, only gold and silver were reported in ASX announcements.

ASX Release

23 May 2022

3) concluded further test work is needed to determine the most advantageous next steps for processing of the Mt Carrington gold-silverpolymetallic concentrate in the context of Thomson's NEFBHS, which could include production of a precious and base metal concentrate for blending with Conrad / Webbs / Silver Spur concentrates3,4,19 for direct sale and/or processing via a hydrometallurgical path as proposed for Texas District, Twin Hills and Mt Gunyan silver (base metal) mineralisation19.
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2) confirmed that the Mt Carrington Kylo, Strauss, Lady Hampden and White Rock mineralisation responds favorably to standard grind and flotation to produce gold-silverpolymetallic rougher concentrate for further processing as envisaged with the Thomson 100% owned NEFBHS projects; and
Figure 2. Mt Carrington Project exploration and mining tenure, and permissive volcanic caldera setting
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personalThomson also engaged metallurgical consultants, CORE Resources, to undertake a preliminary review of White Rock's initial metallurgical test work on Kylo, Strauss, Lady Hampden and White Rock deposits18.
The Review:
1) reported that initial bench scale metallurgical test work was performed on Mt Carrington Kylo, Strauss, Lady Hampden and White Rock including whole ore cyanide leaching, flotation, and flotation concentrate
For intensive leach test.

ASX Release

23 May 2022

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Thomson Resources Limited published this content on 22 May 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 22 May 2022 23:25:05 UTC.