SibSolar TradeCo. , Ltd works at mono crystalline silicon market and occupies the following activities at mono crystalline silicon market: 1. Our Company is a manufacturer of mono crystalline silicon (diameter is from 150 to 200 mm) for the solar power engineering industry and microelectronics. 2. Our Company produces mono crystalline silicon from goods made on commission and sells back prepared mono crystalline silicon. 3. Our Company purchases mono crystalline silicon which is used for solar power engineering and microelectronics, and has diameter from 150 to 200 mm. 4. Our Company also purchases raw materials for producing mono crystalline silicon: - polycrystalline silicon; - scrap of mono crystalline silicon; - crucible remains which are not purify from quartz.