Torsten Henry Ketelsen
From Wikipedia, the free encyclopedia
Torsten Ketelsen is an Australian businessman.[1] Ketelson founded industrial garnet group GMA Garnet in 1987.[2]
Ketelsen is described as having "very much created a market" for garnet, the hardest industrial sand, over a period of more than three decades.[3] As of 2019, GMA Garnet had a 40 per cent share of the global market for garnet.[3]
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