The only thing I can read into it at the moment is, they are looking for a partnership to help in the future funding of this project. Like Northern Dynasty and the pebble project in Alaska they are not able to fund the project on their own.
The resources they are going after is huge for both companies. A 22 year estimated life of the Casino project.
Not sure what the projections of the life span of the pebble project is but probably longer.