The AIM-traded firm said it was collaborating closely with its legal team in Australia, as well as other advisers and the ASX, to resolve the matters and expedite the approval process.

It said it would issue further updates on a revised expected timetable as soon as additional information was available.

At 1235 BST, shares in CleanTech Lithium were down 13.32% at 14.77p.

Reporting by Josh White for Sharecast.com.