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SML.V ·

Oena Diamond MINE Udpate Q2 2024

Corporate Updates

1

Southstone Minerals Limited

2751 Graham Street

Victoria, British Columbia, V8T 3Z1

TSX Venture : SML

www.southstoneminerals.com

OENA DIAMOND MINE UDPATE Q2 2024

VICTORIA, BRITISH COLUMBIA — 11 MARCH 2024 — Southstone Minerals Limited (“Southstone” or the

“Company”) (TSX.V – SML) is pleased to provide an update of diamond sales, mining and diamond production

at the Company’s majority owned Oena Diamond Mine (“ Oena”), Republic of South Africa for the period 1

December 2023 to 29 February 2024 (“Q2 2024”).

During Q2 2024 mining was initially focused on Sandberg Section (Map 1) where a double sixteen-foot pan is

in operation and continues to operate. A double eighteen -foot pan plant was mobilized in January 2024 to

Oena Section , was recently commissioned and is now in operation. Three dozers, four excavators, five

dumpers and four loaders plus all other supporting mining equipment is now in operation at two separate

mining locations at Oena. An onsite Boureves tnik X-Ray Unit (“BVX”) and flow sort are currently operating

and processing material from both Sandberg and Oena with operations running continuously.

During Q2 2024 two diamond tenders were held at tender house CS Diamonds (Pty) Ltd for mine diamond

production to a cutoff date of 24 January 2024. A total of 200.36 carats were sold by African Star Minerals

(Pty) Limited (“African Star”), the Company’s South African subsidiary, with an average price per carat of USD

$2,307 per carat (Table 1). One special of 30.25 carats was produced and sold with a price of USD $8,850 per

carat and several other notable stones are listed in (Table 2 and Photo 1 and 2 below).

Table 1: Q2 2024 Diamond Sales

Table 2: Notable Diamonds Sold

Southstone manages Oena and is responsible for diamond sale s, operational and mining consultation with

the contractor, mining license reporting requirements and security. The Company maintains a management

and security team in South Africa including the CEO of African Star and the Oena Operational Site Manager.

The Company’s Executive Chairman , with external geological support, provides operational support for

internal reporting of Oena activities and provide geological and technical support to the operations team and

contractors.

Mining

location

African Star Tender No.

CS Diamonds Tender No.

Sale Date

Carats sold Gross

revenue

(USD)

Price per

carat (USD)

Q2 2024 Sandberg

Section

Tender 8

CS Diamonds Tender CS251

25 January 2024

126.20

(60 diamonds)

$416,200 $3,298

Q2 2024 Sandberg

Section

Tender 9

CS Diamonds Tender CS252

29 February 2024

74.16

(50 diamonds)

$46,041 $621

Total sales 200.36 $462,242 $2,307

Diamond Mining location Weight sold

(carats)

Gross revenue

(USD)

Price per carat

(USD)

1 Sandberg Section 30.25 $267,712 $8,850

2 Sandberg Section 9.45 $47,874 $5,066

3 Sandberg Section 6.81 $18,081 $2,529

4 Sandberg Section 6.51 $41,423 $6,373

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The Company provides monthly updates on its YouTube channel with recent photos and videos from Oena.

Southtstone Minerals Limited - YouTube Channel.

The Company reports that Mr. Samer Khalaf has resigned as a d irector effective 11 March 2024 for personal

reasons and the Company wishes him well in the future. The Company welcomes Donna Moroney, who will be

rejoining the Board of Directors of the Company effective 11 March 2024.

The technical disclosure in this news release has been approved by Terry L. Tucker, P.Geo., Executive Chairman

of the Company and a Qualified Person as defined by National Instrument 43 -101 of the Canadian Securities

Administrators.

ON BEHALF OF SOUTHSTONE MINERALS LIMITED

Terry L. Tucker, P.Geo.

Executive Chairman

For additional information, please contact Terry L. Tucker at [email protected]

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts

responsibility for the adequacy or accuracy of this release. Capitalized terms used herein that have not been defined have the same meanings ascribed

in the policies of the TSX.V.

Forward-Looking Statement

This news release of Company contains statements that constitute “forward -looking statements.” Such forward-looking statements involve known and

unknown risks, uncertainties and other factors that may cause Southstone’s actual results, performance or achievements, or developments in the industry

to differ materially from the anticipated results, performance or achievements expressed or implied by such forward -looking statements.

Map 1 – Location of Mining Sections and Mining License Boundary, Oena Diamond Mine.

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Photo 1 – 30.25 Carat “Special” - price of USD $8,850 per carat.

Photo 2 – 30.25 Carat “Special” - price of USD $8,850 per carat.