Brisbane company Campbell Brothers' hostile $123 million takeover bid for Perth minerals testing group Ammtec finally appears to be making some headway, with institutional investor BT believed to have accepted the $3.35 per share offer.

Brisbane company Campbell Brothers' hostile $123 million takeover bid for Perth minerals testing group Ammtec finally appears to be making some headway, with institutional investor BT believed to have accepted the $3.35 per share offer.