硅铁：板块情绪偏弱，宽幅震荡，锰硅：板块情绪偏弱，宽幅震荡

Report Summary 1) Report Industry Investment Rating No information provided. 2) Core Viewpoint of the Report The manganese - silicon sector shows weak sentiment and wide - range fluctuations [1]. 3) Summary by Relevant Catalogs Fundamental Tracking - Futures Data: The closing prices of silicon iron 2509, 2510, manganese silicon 2509, and 2510 are 5794, 5778, 6074, and 6086 respectively, with changes of - 26, - 34, - 36, and - 38 compared to the previous trading day. Their trading volumes are 232,143, 72,155, 314,200, and 52,038, and the open interests are 88,820, 59,932, 193,064, and 49,237 [1]. - Spot Data: The prices of silicon iron FeSi75 - B in Inner Mongolia, silicon manganese FeMn65Si17 in Inner Mongolia, manganese ore Mn44 block, and semi - coke small materials in Shenmu are 5450 yuan/ton, 5800 yuan/ton, 40.3 yuan/ton - degree, and 620 yuan/ton respectively. The manganese ore price dropped by 0.2 yuan/ton - degree compared to the previous trading day [1]. - Price Difference Data: The silicon iron spot - futures price difference (spot - 09 futures) is - 344 yuan/ton, an increase of 26 yuan/ton; the manganese silicon spot - futures price difference (spot - 09 futures) is - 274 yuan/ton, an increase of 36 yuan/ton [1]. Trend Intensity - Price Difference Data: The price differences of silicon iron 2509 - 2601, manganese silicon 2509 - 2601, manganese silicon 2509 - silicon iron 2509, and manganese silicon 2601 - silicon iron 2601 are - 17022 yuan/ton, - 888 yuan/ton, 280 - 10 yuan/ton, and 1984 yuan/ton respectively [2]. - Trend Strength Index: The trend strength of silicon iron and manganese silicon is 0, indicating a neutral trend [3]. Macro and Industry News - Product Price News: On August 13, the prices of silicon iron 72 in different regions range from 5400 - 5600 yuan/ton, and 75 from 5750 - 5850 yuan/ton. The FOB prices of 72 and 75 silicon iron are 1030 - 1050 and 1100 - 1120 US dollars/ton respectively. The northern and southern quotes of silicon manganese 6517 are 5850 - 5950 and 5900 - 6000 yuan/ton respectively [2]. - Procurement News: Hebei Steel finalized the purchase price of 75B silicon iron in August at 6030 yuan/ton, a 430 - yuan/ton increase from July, with a quantity of 2835 tons, a 135 - ton increase from July [2].