We have following silicon materials to sell:1. Top and Tail: 5,000kg, P type, high resistivity, (picturers attached). This material is direct form a world leading IC wafer manufacturer in the USA.2. 5MT of Wacker 12N, (5,000 ohm-cm) poly silicon chunk material in the USA. this is in original packaging from the OEM 3. Broken IC Wafer: 700kg of broken 300mm IC wafers in barrel. 100% high resistivity with film or patern. 4. Semi etched chunk EX-WORK : USAAvailability : 5-7 days after 100% T/T payment confirmation100% TT in advanceNote: Material is guaranteed, direct, and factory packaged/sealed from the Tier 1 source.Please let me know if you are interested.We are looking forward to assisting you.BestJennifer YangJe-Na Inc