Pacific Copper may have been an actual productive company at one stage, but it was later bought by Bond Corporation and then established the site in the photos to process silexite allegedly for the refractory ceramics industry.
When you consider the remoteness and cost of setup, the whole things sounds like a means of funnelling other people's money into the private companies that did the construction and logistics - like Tasmanex and Vale Engineering did with an old tin mine not far away in the '70s.
