1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid news

All news on 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (also known as PFBS): plants, production capacities, investments and involved companies.
Who will be producing 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid in the future?
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