Chatham Advises Progress at Korella South

NEWS RELEASE 23-14 June 5, 2023


CHATHAM ADVISES PROGRESS AT KORELLA SOUTH

WELLINGTON New Zealand –Chatham Rock Phosphate Limited, “CRP” or “the Company” (TSXV:
“NZP”, NZX: “CRP” FSE “3GRE”) is pleased to advise the achievement of several new milestones at
Korella South.

Following the end of the wet season, exploration activities have commenced.

With pegging of the first 18 drill-holes sites completed, the Yulluna people, the native title holders,
have undertaken a detailed inspection and cultural clearance of these drill sites and the related
access tracks.

Over the last three days the 6kms of access tracks leading to all drill sites have been graded and drill
pad areas established.

With all exploration activities taking place in the dry season, as evidenced by no rain for the past 11
weeks, the areas around the drill pads have been cleared to minimize risk of grass fires.

Korella South exploration activities takes place within Chatsworth Station under a registered access
and compensation agreement with Cloncurry based MDH Pty Ltd. Chatsworth is one of eight
properties held by MDH in what is one of Australia’s largest cattle operations.

Drilling will now take place, with the first programme being some 15 Reverse Circulation sample drill
holes and 3 air cored large diameter diamond holes (PQ sized cores).

This first drilling program is expected to be completed by end July.

The Pre-Feasibility study for the 2 million tonnes per annum Korella South export mine can now
commence. This is expected to be completed by September 2023.

About Korella South

Shareholders will recall that in December 2021 we announced the application for an area of 196
square kilometres south of Phosphate Hill, Queensland designated Korella South.

The exploration area Korella South EPM28187 was granted to Chatham’s wholly-owned Australian
subsidiary Avenir Makatea Pty. Ltd in December 2022.

The permit covers an area that has been subject to considerable past exploration for a variety of
minerals, within and adjacent to the Georgina Basin. Based on the body of geological knowledge that
currently exists concerning Korella South, the ground is highly prospective for both rock phosphates
and rare earths.

The strong relationship between phosphate and rare earth elements (REE) has been the subject of
considerable study by the Queensland Geological Survey who has opined that the south-eastern rim

2
of the Georgina Basin, that centres on Korella South, provides the highest concentration of REE in the
Georgina Basin.


For further information please contact:

Chris Castle
President and Chief Executive Officer
Chatham Rock Phosphate Limited
64 21 55 81 85, chris@widespread.co.nz or chris@crpl.co.nz

Statements about the Company's future expectations and all other statements in this press release other than
historical facts are "forward looking statements". Such forward-looking statements are based on numerous
assumptions, and involve known and unknown risks, uncertainties and other factors, including risks inherent in
mineral exploration and development, which may cause the actual results, performance, or achievements of the
Company to be materially different from any projected future results, performance, or achievements expressed
or implied by such forward-looking statements.

Neither the Exchange, its Regulation Service Provider (as that term is defined under the policies of the Exchange),
or New Zealand Exchange Limited has in any way passed upon the merits of the Transaction and associated
transactions, and has neither approved nor disapproved of the contents of this press release.

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NEWS RELEASE 23-14 June 5, 2023


CHATHAM ADVISES PROGRESS AT KORELLA SOUTH

WELLINGTON New Zealand –Chatham Rock Phosphate Limited, “CRP” or “the Company” (TSXV:
“NZP”, NZX: “CRP” FSE “3GRE”) is pleased to advise the achievement of several new milestones at
Korella South.

Following the end of the wet season, exploration activities have commenced.

With pegging of the first 18 drill-holes sites completed, the Yulluna people, the native title holders,
have undertaken a detailed inspection and cultural clearance of these drill sites and the related
access tracks.

Over the last three days the 6kms of access tracks leading to all drill sites have been graded and drill
pad areas established.

With all exploration activities taking place in the dry season, as evidenced by no rain for the past 11
weeks, the areas around the drill pads have been cleared to minimize risk of grass fires.

Korella South exploration activities takes place within Chatsworth Station under a registered access
and compensation agreement with Cloncurry based MDH Pty Ltd. Chatsworth is one of eight
properties held by MDH in what is one of Australia’s largest cattle operations.

Drilling will now take place, with the first programme being some 15 Reverse Circulation sample drill
holes and 3 air cored large diameter diamond holes (PQ sized cores).

This first drilling program is expected to be completed by end July.

The Pre-Feasibility study for the 2 million tonnes per annum Korella South export mine can now
commence. This is expected to be completed by September 2023.

About Korella South

Shareholders will recall that in December 2021 we announced the application for an area of 196
square kilometres south of Phosphate Hill, Queensland designated Korella South.

The exploration area Korella South EPM28187 was granted to Chatham’s wholly-owned Australian
subsidiary Avenir Makatea Pty. Ltd in December 2022.

The permit covers an area that has been subject to considerable past exploration for a variety of
minerals, within and adjacent to the Georgina Basin. Based on the body of geological knowledge that
currently exists concerning Korella South, the ground is highly prospective for both rock phosphates
and rare earths.

The strong relationship between phosphate and rare earth elements (REE) has been the subject of
considerable study by the Queensland Geological Survey who has opined that the south-eastern rim

2
of the Georgina Basin, that centres on Korella South, provides the highest concentration of REE in the
Georgina Basin.


For further information please contact:

Chris Castle
President and Chief Executive Officer
Chatham Rock Phosphate Limited
64 21 55 81 85, chris@widespread.co.nz or chris@crpl.co.nz

Statements about the Company's future expectations and all other statements in this press release other than
historical facts are "forward looking statements". Such forward-looking statements are based on numerous
assumptions, and involve known and unknown risks, uncertainties and other factors, including risks inherent in
mineral exploration and development, which may cause the actual results, performance, or achievements of the
Company to be materially different from any projected future results, performance, or achievements expressed
or implied by such forward-looking statements.

Neither the Exchange, its Regulation Service Provider (as that term is defined under the policies of the Exchange),
or New Zealand Exchange Limited has in any way passed upon the merits of the Transaction and associated
transactions, and has neither approved nor disapproved of the contents of this press release.