Greece
Ostro Owners Inc, a leading supplier of Blue Topaz, oversees the exploration, mining, processing, and marketing of this gemstone from some of the world’s finest deposits in a responsible and transparent manner. The company is rooted in a family legacy guided by the principle of tithing, with 10% of profits dedicated to charitable causes through the Ostro Fayre Share Foundation. Founded on the principles of collaboration and ethical practices, Ostro Minerals Schweiz AG operates under the brand Ostro® and has registered charity number 1090985.
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