Johnson Tuke said he was not aware of it when contacted by Loop PNG.
Yesterday, chairman of the Yulai Landowners Group, George Gusi, announced on social media the ultimatum, which lapses on Nov 20, for the withdrawal of the licence from Asidokona.
When contacted by Loop PNG, he said landowners would shut the mine down if the ultimatum was not met.
Gusi claims Asidokona does not have the capacity to operate the mine.
The chairman previously snubbed the signing of the Memorandum of Agreement (MOA).
