Today, Carester is the benchmark partner for rare earth mining companies. The company is skilled in studying and designing rare earth production chains, while its unique network of experts aims to support and advise companies to create responsible, tailored start-up solutions suited to their objectives and the issues they face.

With the word "care" as part of our name, Carester fosters ideas of care, attention and responsibility and translates the ambition of its founder, Frédéric Carencotte, into exploring and promoting procedures that are ever kinder to Man and to the environment.
The second part of our name, "ter" denotes the French word "terre", meaning "earth".
The "s" in the middle is borrowed from "sustainable" and connects the two ideas together, highlighting the ambition that drives Carester to enhance and perpetuate its expertise.


A human experience

Carester: above all, a human experience.
A group of persons that share the same passion and the same desire to assert European expertise in the rare earth sector. Over the years, this group of former colleagues has forged robust and amicable professional relationships.
By combining their know-how, they hope to be able to send a strong message about the transmission that is required and the development of new procedures and new knowledge.

An Ambition

Carester is the reference partner in rare earth sector. Its ambition is to contribute to the research of fairer and more environmentally friendly industrial procedures.


Rare-earth elements

Rare-earth elements are a group of metals with similar properties. They include scandium 21Sc, yttrium 39Y and the 15 lanthanides
Contrary to what their name suggests, these metals are quite abundant in the earth’s crust, to the same extent as some common metals.


The nitrate method of liquid extraction offers major advantages for Nd/Pr productions.