Actually I thought Weipa had scaled back operations in recent years as had the production of Alumina but even so, here is an existing facility already in operation and business being business, might be willing to sell their product to another.
With all the attendant difficulties today with the environmental protection and planning approvals needed to start from scratch for a new mine, along with building all the needed infrastructure which takes time and cost, it could be a viable alternative to consider buying elsewhere.
I dont know where you live but I am on the border of the NSW Coal Fields and have seen one long established running Coal mine forced to close for over 3 months, standing down (300) all but basic staff while they waited for an extension of their Mining lease to be approved.
Another 'Open Cut' not 20 kms away was forced to close completely because of being refused permission to extend their working area as the current one was near worked out.
A third mine has managed to get their requested approval passed in time to avoid its closure as they began to run out of coal.
Much opposition to mining is from Groups who for no other reason just simply oppose mining in any form along with those concerned with the environment and the use of roads for transport and although many in each group dont care for the others ideals, they will and do band together 'for the Common Cause'.
Recently a new gravel quarry has opened up locally but it took a number of years after much opposition before approval was granted to allow it to be opened.
At this time a Gravel quarry is seeking approval in a rural area 11 kms from Bathurst and although the Council appears to have approved in principle for it to go ahead, those who live nearby and affected by the Quarry are beginning to voice their Opposition and I wonder how those in the Taralga area where this mine is proposed are for or against its development???
Back in the late 1990's a Gravel Quarry was proposed not too far from me in an area I thought wasnt suitable along with some other reasons and I added my opposition to its opening and it never did.