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Tres-Or Update on Brazil Diamond Properties

Corporate Updates

Tres-Or Update on Brazil Diamond Properties

Vancouver, British Columbia--(Newsfile Corp. - September 13, 2023) - Tres-Or Resources Ltd.

(TSXV:

TRS) (OTC Pink: TRSFF)

("

Tres-Or

" or the "

Company

") is pleased to announce that the Company

has acquired the exclusive right to develop kimberlite diamond occurrences in the Coromandel diamond

district of Minas Gerais State, Brazil.

Through Tres-Or's wholly owned Brazilian subsidiary Vaaldiam do

Brasil Mineração Ltda. ("VBM"), the Company has entered into an exclusive development agreement

with Vendome Mine Mineração Importação Exportação E Pesquisa Ltda. and Antônio Ione Teixeira De

Jesus (collectively referred to as "

Vendome"

) that provides Tres-Or with the exclusive right to develop

kimberlite diamond deposits on the Vendome Properties.

Vendome's Coromandel Properties

Diamonds have been produced from the river gravels in the Coromandel district for over 200 years, and

small-scale production continues to this day.

The largest gem diamond ever found in Brazil, the

"Presidente Vargas," weighing 726.6 carats, was discovered in 1938 within the Coromandel district.

Other very large gem diamonds recovered within the Coromandel district include 602 cts, 460 cts,

400.7cts, 400.5 cts, and 377.5 cts, all among the largest gem diamonds ever produced in Brazil

1

.

All the

diamonds produced thus far in the Coromandel district have been produced from alluvial gravel deposits

found along the rivers and drainages.

These diamonds were likely eroded from kimberlite, the primary

source rock of diamonds.

Numerous kimberlites have been discovered in the district, but few if any have

been properly sampled to evaluate their diamond content and diamond value, to determine their

economic potential.

The fact that large valuable diamonds continue to be recovered from gravel deposits

that lie adjacent to some of the 27 kimberlites that are situated on Vendome's Properties, suggests that

there is potential for an economic primary diamond source kimberlite deposit.

The evaluation of these

kimberlites will be the principal focus of Tres-Or's exploration work.

The Vendome Properties are comprised of 7 blocks of mineral licenses, covering an area of roughly

29,175 hectares.

Tres-Or plans to initially focus its exploration on 5 of the blocks where the 27

kimberlites are situated and where there has been a long history of diamond recoveries from the alluvial

gravels found along the rivers that crosscut the district.

Tres-Or's geologists have prioritized these 5

claim blocks based on the prevalence of diamond recoveries from the alluvial gravels and the proximity

of these recoveries to the known kimberlite pipes.

Property

Known Kimberlites

Description of Property

Vendome – P1

10 Kimberlites:

Santo Antônio do Bonito

2 & 4

Santo Inacio 7

Pedras 1 & 2

Corrego Manoel 1

Guara 9, 10, 11 & 18

Situated between the Santo Antônio do

Bonito River immediately to the east

which has produced many famous

large diamonds (e.g., Presidente

Vargas (726.6cts), Santo Antônio

(602cts), Darcy Vargas (460cts) and

the Coromandel IV (400.7cts)); and the

Santo Inacío river immediately to the

west (the Charneca I (428cts),

Charneca II (107cts), and the Charneca

III (105cts) diamonds).

Vendome – P2

11 Kimberlites:

Santa Clara 9 & 11

Tamborete 1, 2 & 3

Bravo 11, 12, 13, 15 & 16

Santa Rosa 5

The property is situated near the

headwaters of the Douradinho River

where there is active alluvial diamond

production immediately downstream of

the property.

Government records

2

show the recovery of 55 diamonds in

alluvial samples within the northern limit

of the property in close proximity to the

Santa Clara kimberlites.

Vendome – P3

2 Kimberlites:

Lemos 1

Buriti 3

Government records show the recovery

of 2 diamonds found in alluvial gravels

sampled within the property and near

the known pipes.

Vendome – P4

2 Kimberlites:

Três Ranchos 2

São Felix 7

Government records show the recovery

of 5 diamonds found in alluvial gravels

sampled within the property and near

the known pipes.

Vendome – P5

2 Kimberlites:

Forca 7

Forca 8

Government records show the recovery

of 2 diamonds found in alluvial gravels

sampled within the property and near

the known pipes.

Tres-Or Brazil diamond project location map.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2478/180423_9dbdf0aec4247b2d_001full.jpg

Vendome's alluvial diamond operations, which are situated within the Vendome - P1 block have

produced some high value diamonds including the 2016 recovery of a large white diamond which

weighed 25 carats.

Vendome reported that it sold this diamond for US$600,000, pointing to a high sales

value of US$24,000 per carat for this stone.

The district also has a history of producing fancy-colored

diamonds.

Vendome reported that it recovered an 8.88 carat pink diamond in 2020 which was

reportedly sold for US$2.5 million (US$284,000

per carat

).

This sales price is extremely high,

considering that the average sales price for diamonds produced in Brazil in 2022 was US$192 per

carat

3

.

1

Liccardo and Svisero, 2006.

2

Projeto Diamante Brasil, CPRM – Geological Survey of Brazil, 2017

3

Annual Statistics, Kimberley Process Certification Scheme

Summary of the Terms of the Vendome Agreement

Under the terms of the arrangements, Tres-Or will proceed to carry out a preliminary technical evaluation

of the primary diamond occurrences, through its Brazilian subsidiary VBM, to assess the mineral

potential of the 27 kimberlites on the Vendome properties.

Vendome operates exclusively in secondary

alluvial diamond occurrences and if these overlap with potential primary sources, Vendome would retain

the right to the surficial portion of the deposit to a depth of 20 metres below surface.

Tres-Or would have

the exclusive right to develop and mine the kimberlite below that depth. Tres-0r's studies will include

comprehensive research for evaluating potential targets through fieldwork, analysis of indicator minerals,

geophysical surveys, geochemical sampling, drilling, and testing primary kimberlite sources for

economic potential.

In the event that studies result in favorable conclusions based on Tres-Or's criteria and the identification

of a potential target for large volume sampling (defined as sampling of kimberlite with a volume

exceeding 1,000 cubic metres; "Bulk Sample"), then Vendome commits to entering into a mining rights

assignment agreement for partial assignment of Mining Rights by submission to the government to allow

for VBM to install a kimberlite processing plant to treat and recover macrodiamonds from bulk sampling

operations on the kimberlite pipe.

Should Tres-Or's work produce favourable results, then a Definitive Agreement would be entered into

within a 2-year period from the commissioning of the kimberlite processing plant.

Vendome shall then

transfer a 100% interest in their Mining Rights to VBM.

As a result of the transfer of Mining Rights, Tres-Or has the right to market and sell 100% of the diamond

production derived from the kimberlite(s).

Tres-Or shall pay a royalty fee of 2.0% to Vendome.

The value

of the royalties corresponds to the royalty fee multiplied by the Gross Sales Value of the diamonds sold.

If special stones are produced, defined as those weighing over 10.8 ct. or stones over 1.0 ct. classified

as "fancy color" in the sale (according to GIA definitions and standards for fancy colored diamonds), the

royalty fee payable to Vendome for that specific production will be 5.0%.

Tres-Or has completed a preliminary on-site field visit to selected Vendome properties on signing of the

agreement in August 2023.

The purpose of the technical team's visit was to prioritize certain kimberlites

associated with the Vendome properties as well as Tres-Or's mineral claims in Minas Gerais.

Field work

is continuing on Tres-Or's properties and prospects in Matto Grosso, Brazil.

Qualified Persons

Disclosure of a scientific or technical nature related to the Company's diamond project exploration was

prepared under the supervision of Dr. Harrison O. Cookenboo, Ph.D., P.Geo., an independent Qualified

Person (as such term is defined in National Instrument 43-101), and Laura Lee Duffett, P.Geo., the

Company's President and CEO, who is a non-independent Qualified Person, and both have reviewed

and approved the technical and scientific portions of this news release.

Further details of the priority diamond projects in Brazil will be disclosed once our initial field work

investigations are complete.

An updated Tres-Or web site is under construction.

About Tres-Or Resources Ltd.

Tres-Or Resources Ltd. ("Tres-Or") is a Canadian diamond exploration company with mineral

exploration claims and diamond discoveries in Quebec and Ontario, Canada and exploration permits for

primary diamond sources in Brazil through its wholly owned subsidiary Vaaldiam do Brasil Mineração

Ltda.

Tres-Or is listed on the TSX Venture Exchange under the trading symbol "TRS". Additional

information related to the Company is available on SEDAR and on the Company's website (

www.tres-

or.com

).

On behalf of the Board of Directors

"Laura Lee Duffett"

President and CEO

For further information:

Laura Lee Duffett, President & CEO: +1 (604) 541-8376 –

[email protected]

Dean Claridge, Business Development: +1 (604) 688-8700

Website:

www.tres-or.com

Neither the TSX Venture Exchange nor its Regulation Service Provider (as the term is defined

in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or

accuracy of this news release.

Forward-Looking Statements

This news release contains certain forward-looking statements, which relate to future events or future

performance and reflect management's current expectations and assumptions. Such forward-looking

statements reflect management's current beliefs and are based on assumptions made by and

information currently available to the Company. Readers are cautioned that these forward-looking

statements are neither promises nor guarantees, and are subject to risks and uncertainties that may

cause future results to differ materially from those expected including, but not limited to, market

conditions, availability of financing, actual results of the Company's exploration and other activities,

environmental risks, future diamond prices, operating risks, accidents, labor issues, delays in

obtaining governmental approvals and permits, and other risks in the mining industry.

All the forward-

looking statements made in this news release are qualified by these cautionary statements and those

in our continuous disclosure filings available on SEDAR at

www.sedar.com

. These forward-looking

statements are made as of the date hereof and the Company does not assume any obligation to

update or revise them to reflect new events or circumstances save as required by applicable law.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/180423