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Exclusive-Solvay in talks with One Investment Management on rare earths partnership - Finance news and analysis from Global Banking & Finance Review
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Exclusive-Solvay in talks with One Investment Management on rare earths partnership

Published by Global Banking & Finance Review

Posted on September 8, 2026

4 min read

· Last updated: September 8, 2026

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Solvay Explores Rare Earths Partnership With OneIM, Eyes Strategic Growth

Solvay and OneIM: Strategic Partnership Talks and Industry Impact

By Melanie Burton and Eric Onstad

Overview of the Potential Partnership

MELBOURNE/LONDON, Sept 8 (Reuters) - Belgian chemicals group Solvay is in talks with One Investment Management about a potential strategic partnership for its rare earths business, Solvay told Reuters on Tuesday.     

A deal would give OneIM, run by former SoftBank executive Rajeev Misra, exposure to rare earths processing, complementing its existing investments in the sector, which is dominated by China.

Two sources with knowledge of the matter told Reuters that Solvay and OneIM have been holding talks since March about Solvay's rare earths operations. 

Significance of Rare Earth Minerals

Rare earth minerals are critical for the energy transition, electronics and defence industries, and Western countries are seeking to reduce their reliance on China for supply.

Official Statements

"In response to recent rumors ... Solvay confirms that it is currently engaged in discussions regarding a potential strategic partnership with OneIM regarding its rare earths business," the company said in an emailed statement in response to a query from Reuters.

"There can be no certainty at this stage that these discussions will result in any agreement or transaction. A further announcement will be made if and when appropriate."

Solvay later published a statement to the stock exchange about the talks.

OneIM had no immediate comment. 

Solvay's shares jumped 3% following the news, having been in the red ahead of the Reuters story.

Solvay's Rare Earths Operations

Historic Leadership in Rare Earths Processing

SOLVAY FRENCH PLANT A WORLD LEADER IN 1980S

Solvay's rare earths unit includes a processing plant in France that was among the world's largest four decades ago.

While the business accounts for only a small part of Solvay, which produces chemicals including soda ash and silica, it is considered a strategic asset because of its processing expertise.

The La Rochelle Plant

The company's 78-year-old processing plant in La Rochelle on France's Atlantic coast set the benchmark for global rare earth prices in the 1980s and 1990s and is one of the only plants outside of China that can separate all 17 rare earth elements. 

OneIM’s Background and Investments

OneIM is run by Misra, former CEO of SoftBank Group's massive Vision Funds, and has invested in a string of rare earths companies, some of which have already negotiated supply deals with Solvay.    

Misra stepped down from SoftBank in 2022 to found OneIM along with Yanni Pipilis and other former SoftBank executives.

The alternative investment manager, with offices in Abu Dhabi, London, New York and Tokyo, manages $11.8 billion in assets.

OneIM’s Rare Earth Investments and Industry Context

Recent Deals and Partnerships

ONEIM HAS STRING OF RARE EARTH INVESTMENTS

Late last month, OneIM agreed to be a cornerstone investor in Viridis Mining and Minerals by providing up to $75 million to the firm developing a rare earths mine in Brazil.

Two months earlier, Viridis signed a letter with Solvay proposing a strategic partnership, including supplying rare earths from its mine to Solvay's processing plant.

OneIM has also invested in two privately held U.S. rare earth magnet producers: $200 million in Noveon Magnetics in January and an undisclosed investment in Vulcan Elements in August. 

In November last year, Solvay agreed a deal to provide rare earths to Texas-based Noveon.

Global Market Dynamics

There are at least seven development stages from mining to magnet production, and only a few Western companies with proven technology along that chain. China commands some 90% of global magnet making capacity. 

Solvay’s Speciality Chemicals Division and Future Plans

Rare earths is part of Solvay's Speciality Chemicals division, comprising rare earths and fluorine, which accounted for 15% of sales last year out of a total €4.3 billion ($5 billion).

Solvay posted reported second-quarter core earnings above market expectations in late July and CEO Philippe Kehren said it planned €15 million to €20 million of additional investment to further expand the La Rochelle facility.

Upcoming Developments

    Industrial scale separation of heavy rare earths dysprosium and terbium was due to begin in the autumn, he added. 

($1 = 0.8611 euros)

(Reporting by Melanie Burton in Melbourne and Eric Onstad in London. Editing by Mark Potter)

Key Takeaways

  • Solvay confirms talks with OneIM—no certainty of deal; shares rose ~3% on news (marketscreener.com)
  • Solvay’s La Rochelle plant, one of few outside China able to separate all 17 rare earth elements and now producing permanent‑magnet materials, is of strategic importance (solvay.com)
  • OneIM has been aggressively expanding in rare‑earth sector—investments include Noveon Magnetics, Vulcan Elements, Viridis Mining, aligning with its strategy to back rare‑earth supply chains beyond mining (noveon.co)

References

Frequently Asked Questions

What is the focus of the Solvay and OneIM partnership talks?
Solvay and One Investment Management are in discussions about a potential strategic partnership for Solvay's rare earths business.
Why is Solvay's rare earths plant in France significant?
Solvay's La Rochelle plant is one of the few outside China capable of separating all 17 rare earth elements and was a global benchmark in the 1980s and 1990s.
Who runs One Investment Management?
One Investment Management is run by Rajeev Misra, a former SoftBank executive, along with other ex-SoftBank team members.
How has the news impacted Solvay's shares?
Solvay's shares jumped 3% following reports of partnership talks with OneIM.
What recent investments has OneIM made in the rare earths sector?
OneIM recently invested in Viridis Mining, Noveon Magnetics, and Vulcan Elements, strengthening its presence in the rare earths supply chain.

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