Check out Michaeljob's post at the following link.
https://hotcopper.com.au/threads/an...3685464/page-93?post_id=27381816#.WgGLFklrzVg
Aurora were planning to do a lot more work on the project before the falling Mn price caused them to shelve it. See for example the "2010 follow-up drilling" slide in Aurora's presentation.