Environmental group Save Malaysia Stop Lynas has obtained a hearing date to again challenge Lynas' temporary operating permits.
It comes after the rare earths miner won its appeal against the group's attempt to shut down the Lynas Advanced Materials Plant in Malaysia lat month.
At the time Lynas stated that while the court had dismissed the latest attempt to halt development, it was possible there would be further applications on the same issue, after the group SMSL was previously successful in obtaining the suspension of Lynas' temporary operating licence.
SMSL's latest hearing before the Malaysian Court of Appeal on Friday will consider another application for an interim stay pending the appeal on the Kuantan High Court's decision to refuse an injunction on Lynas' operations.
"Lynas understands that the documents that SMSL will present to the Court of Appeal are substantially similar to the documents that have been presented for recent unsuccessful application by SMSL, including those to the Kuantan High Court on 8 November and 14 November," the miner said in a statement.
Shares in Lynas Corporation rose last month after the company announced that about 100 containers of rare earths concentrate had arrived for processing at its new Malaysian plant.