CRP looks for Critical Mineral Germanium at Korella South

NEWS RELEASE 25-09 May 22, 2025

Chatham initiates search for presence of critical mineral Germanium within
Korella South


WELLINGTON New Zealand - Chatham Rock Phosphate Limited (TSXV: “NZP”, NZX: “CRP” and
“3GRE” (Frankfurt) or the “Company”)
Chatham Rock Phosphate Limited is pleased to
announce that, through its wholly owned Australian subsidiary Pacific Rare Earths Pty
Ltd, a search for the critical mineral Germanium has been initiated within its Korella
South exploration lease EPM28187.

During the dry season, soil and plant samples in an area in the southeast of the lease
will be collected for analysis for Germanium.

While the Korella South lease is better known as a phosphate and REE exploration area,
also located within the lease is the historic Noranside Lead-zinc mine.

With the zinc ore sphalerite, a known source of Germanium with much of the world’s
Germanium, being recovered as a sludge generated in the electro refining of zinc metal,
the area within and adjacent to the Noranside mine is prospective for Germanium. The
Noranside mine is in the southeast of EPM28187 and adjacent to the highly
metallogenic Pilgrim Fault.

To the north of Korella South and located on the Pilgrim Fault are the historic Tick Hole
gold mine and Duchess copper mine.

Soil and plant samples within a 1km radius of the historic Noranside Mine will be
collected for analysis. The company will also participate in the next round of
applications for a Collaborative Exploration Initiative grant to further advance the
search for Germanium.

We will keep shareholders informed as we advance this search for germanium within
Korella South.

About Germanium

While germanium is used in specialized semiconductor applications, the major end
uses are fibre-optic systems, infrared optics, solar cell applications, and light-emitting
diodes (LEDs).
Germanium nanoparticles have size-dependent optical properties and have potential
applications in optoelectronics, biological imaging and therapeutics, flash memories,
and lithium-ion batteries.
Chris Castle
President and Chief Executive Officer
Chatham Rock Phosphate Limited
64 21 55 81 85 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 above descried transaction, and has
neither approved nor disapproved of the contents of this press release.