Green Minerals AS: World first study findings on Seafloor Massive Sulphides processing capabilities - integration in conventional copper processing flowsheet possible.

06 Dec 2023 19:45 CET

6.12.2023 19:45:01 CET | Green Minerals AS | Non-regulatory press releases

Oslo, Norway - 6 December 2023 - Green Minerals ("the Company") is pleased to
announce the results of a world-first study on the possibility of blending i.e.,
integrating, Seafloor Massive Sulphides (SMS) ore in the existing conventional
copper processing value chain. The study was performed together with the Finnish
Geological Survey (GTK). The SMS material was provided by a Research Project in
which the Company is a partner. The land ore originates from a mining major. The
Company has proven that marine ore and land ore can be blended at a high
recoverability (77-80%) of copper using typical grinding size and reagents for
floatation. Worth noting, a significant grade of cobalt (0,3%) was found in the
tailings. The Company is considering further study for valorising this key
battery metal as part of tailings re-processing.

The findings are significant for terrestrial mining's Life-Of-Mine (LOM)
considerations. SMS could be used to upgrade sub-economical ore and prolong the
LOM of ongoing operations.

The results of this study comfort the Company's technical and economical
hypothesis and strengthen the case for a reduced requirement for reserves, i.e.,
a reduced required portfolio, before mining operations can start. Further, the
findings are significant for the ongoing opening process for marine minerals in
Norway as the economic and strategic value of the minerals found on the
Norwegian Continental Shelf with these study results are higher than previously
thought.

The Company will present its results at the Geonova conference in Bergen
tomorrow.



DISCLOSURE REGULATION

This information is subject to the disclosure requirements in article 19 of the
Market Abuse Regulation and section 5-12 of the Norwegian Securities Trading
Act.

CONTACTS

* Ståle Monstad, CEO, Green Minerals AS, +47 915 54 644,
staale.monstad@greenminerals.no

ABOUT GREEN MINERALS AS

Green Minerals AS mission is to deliver minerals for the green energy transition
in a responsible and sustainable manner through deep sea mining of key minerals
and rare earth elements (REE). This significantly reduces the social and
environmental costs found in terrestrial mining while at the same time solving a
strategic need for EU and the USA. For more, visit www.greenminerals.no -
http://www.greenminerals.no

ATTACHMENTS

Download announcement as PDF.pdf -
https://kommunikasjon.ntb.no/ir-files/17848272/2797/3904/Download%20announcement
%20as%20PDF.pdf

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