[Silicon Branch: short-term demand reduction this week polysilicon price decline widened to 12%]. According to data released by the Silicon Branch of China Nonferrous Metals Industry Association, the domestic price range of N-type materials this week is 16.0-171000 yuan / ton. the average transaction price is 165700 yuan / ton, the re-feeding price range is 15.0-167000 yuan / ton, and the average transaction price is 160300 yuan / ton. The month-on-week decrease was 11.97%. The price range of single crystal compact material is 14.8-165000 yuan / ton, the average transaction price is 157900 yuan / ton, the weekly decrease is 12.62%; the price range of single crystal cauliflower is 14.5-162000 yuan / ton, the average transaction price is 155000 yuan / ton, and the weekly decrease is 12.48%.