OSCO (Ostovan Sepand Co) was established in 2000, aiming to export different types of Iran stone blocks to south East Asia market. Very soon OSCO famed as a reliable supplier in China market and as one of the biggest Iranian Block Suppliers. Later in 2007, OSCO developed in the field of quarry operation as well as trading. After 17 years of experience in field of stone, it is a very specialized company in supplying Onyx in Blocks and Slabs.
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