Our company is interested in purchasing large quantity of Silicon Wafer Scraps, Polysilicon Chunks, or other silicon materials.Usually, we need used IC wafers, or IC wafer scraps in: Resistivity > 0.5 ohm-cm for P type, > 1.0 ohm-cm for N type. Thickness: >0.5 mm. Size with broken: 1 CM X 1 CM & up. Purity: 6N & up. Surface: bare, polish, coat. Amount of broken and unbroken in a deal: 1,000 Kgs. & up If you have any one of these products to offer please feel free to contact us.