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Impadoc S.A
Operates fields of high purity calcium carbonate in Columbia for industrial use. In addition the company manufactures products such as kaolin, talc, dolomite, barite, and calcium sulfate as dehydrate and hemihydrate.
http://www.impadoc.com/
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Pumex UK Ltd
Pumice powders, pumice grains, pumice lightweight aggregate, calcium carbonate and other industrial minerals. A wholly owned subsidiary of Pumex SpA, Italy who extract and process the product on the island of Lipari.
http://www.pumex.co.uk
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