I worked there in the 1970's in the laboratory and the plant closed down in the early 1980's. It stood defunct until it was burnt down a few weeks ago. A ghostly rabbit warren of dangerous rooms, I'm sure the site is of more value now its buildings are gone.
A Selwyn College 7th form project group filmed a small documentary on the plant in 2008 but I don't know what happened to it, I was asked to participate.
But its history, its records, were of concern to me and I'm happy to report that the staff
Bill says finding an archives that would take the records was a problem. Thanks Hamilton Library for your agreement to look after them.
I hope other industries big and small have had the same good sense!