The rare earth processing company Lynas should not be allowed to expand its operations in Malaysia until questions about the management of its radioactive waste have been resolved, according to former Bentong MP Wong Tack.

He urged Science, Technology, and Innovation Minister Chang Lih Kang to reveal the status of Lynas’ efforts to remove thorium from its waste stream, as per the requirements of a 2023 revision to their operating license.

“Can the minister tell us what is the...