29 May 2025

Rainbow Rare Earths Limited

("Rainbow" or "the Company")

LSE: RBW

Collaboration with Curation Connect

NEWS RELEASE

Rainbow Rare Earths is pleased to announce its partnership with Curation Connect, a platform which will enable the Company to showcase its investment case to investors around the world.

Curation Connect, internally labelled 'Shareflix', is a destination where investors can discover and research new stocks in a format akin to how people consume content today. The platform, free for all investors, presents investment stories to a predominantly non-institutional audience through its 'showcases'. Curation Connect currently covers 70 stocks and has a rapidly growing audience, attracting ca. 25,000 unique investors last month.

Curation Connect is one of three divisions within the Curation Group, alongside Curation Collective and Curation ESG.

The Rainbow Rare Earths showcase can be found here: Curation Connect - Rainbow Rare Earths Showcase or https://app.curationconnect.com/company/Rainbow-Rare-Earths-90903

For further information, please contact:

Notes to Editors:

About Curation Group

The Curation Group consists of three main divisions: Curation Connect, Curation Collective and Curation ESG.

Curation Connect is a platform which presents equity investment stories to a predominantly non-institutional audience. The platform, internally labelled 'Shareflix', helps investors discover and research new stocks in a format akin to how people consume content today. The platform currently covers 70 stocks and has a rapidly growing audience, attracting ~25,000 investor visits last month and when leveraged can help companies connect to new pools of capital at scale.

Curation Collective is a network of professional investors representing over $300bn of assets under management. Its 250+ members include high net worth individuals, industry experts, family offices and institutions. Curation Collective offers exclusive events, access to management teams and unrivalled idea generation through the Collective intelligence of the group.

Curation ESG is a specialist sustainability advisory boutique offering insights into ESG trends, risks and technological advances that are increasingly crucial to businesses.

About Rainbow:

Rainbow Rare Earths aims to be a forerunner in the establishment of an independent and ethical supply chain of the rare earth elements that are driving the green energy transition. It is doing this successfully via pioneering the first commercial recovery of rare earth elements from phosphogypsum that occurs as the by-product of phosphoric acid production.  These projects eliminate the cost and risk of typical rare earth projects, which involve mining and the production of a rare earth concentrate that must be chemically cracked to form a mixed rare earth carbonate before further downstream processing. As such, Rainbow's projects can be brought into production quicker and at a lower cost than traditional hard rock mining projects.

The Company is focused on the development of the Phalaborwa Project in South Africa and the earlier stage Uberaba Project in Brazil. Rainbow's process will deliver separated rare earth oxides through a single hydrometallurgical plant on site, with a focus on the recovery of neodymium, praseodymium, dysprosium and terbium. These are critical components of the high-performance permanent magnets used in electric vehicles, wind turbines, defence and exciting new markets such as robotics and advanced air mobility.

The Phalaborwa updated interim economic study released in December 2024 has confirmed strong base line economics for the project, which has a base case NPV10 of US$611 million. Given Phalaborwa is a chemical processing operation, with its resource sitting at surface in a chemically cracked form, it has a much lower operating cost than traditional rare earth mining projects, and it is therefore estimated to be the highest margin rare earth project in development today outside of China.

More information is available at www.rainbowrareearths.com and www.curationconnect.com