Key points
- Pham’s resignation as nonexecutive director took effect on Oct. 1.
- He served five years on the board and helped the company pursue a secure, strategic rare earths supply.
- Chairperson Adonis Pouroulis thanked him for his “support, valuable input and hard work.”
Rainbow Rare Earths has announced the resignation of J. Peter Pham as a nonexecutive director, effective Oct. 1, with the former diplomat leaving to focus on his other business interests.
Pham spent five years on the board of the LSE-listed company. According to Rainbow, he played a role in helping it develop a secure and strategic source of critical rare earths, the minerals used in permanent magnets for electric vehicles, wind turbines and defense systems.
“We would like to extend our thanks to Peter for his support, valuable input and hard work over the years and wish him well in the future,” chairperson Adonis Pouroulis said.
A policy voice on the board
Pham brought a Washington perspective to a company whose pitch rests on supplying rare earths from outside China.
 He previously served as a US special envoy to the Sahel and the Great Lakes region of Africa, and his network in American policy circles aligned with Rainbow’s effort to position itself within Western critical mineral supply chains.
His departure comes shortly after Rainbow secured Neo Performance Materials as a technical and offtake partner, a deal announced last week that gave the company a route to market for its planned production.
Consequently, the board loses a strategic voice at a moment when commercial execution, rather than diplomacy, moves to the fore.
What Rainbow is building
Rainbow’s flagship is the Phalaborwa project in South Africa, where it plans to recover rare earths from existing phosphogypsum stacks rather than through conventional mining, an approach it argues is faster, cheaper and lower-impact. The company has also been developing a similar opportunity in Brazil.
The company gave no indication that a replacement director has been identified. Meanwhile, Rainbow said nothing about changes to committee roles or board size following the resignation.
