硅铁：黑色板块共振，硅铁偏弱震荡，锰硅，澳矿恢复发运，锰硅偏弱震荡

Group 1: Report Industry Investment Rating - There is no information about the report industry investment rating in the provided content. Group 2: Report's Core View - Silicon iron shows a weak and volatile trend due to the resonance of the black - plate sector; manganese silicon shows a weak and volatile trend as Australian ore resumes shipping [2]. - The trend strength of silicon iron is 0, and that of manganese silicon is 0, both indicating a neutral trend [5]. Group 3: Summary by Related Catalogs 1. Fundamental Data Tracking Futures - Silicon iron 2507 closed at 5638, down 52 from the previous trading day, with a trading volume of 120,368 and an open interest of 218,280; silicon iron 2509 closed at 5552, down 42, with a trading volume of 44,480 and an open interest of 149,333 [1]. - Manganese silicon 2506 closed at 5722, down 62, with a trading volume of 3,148 and an open interest of 19,309; manganese silicon 2509 closed at 5778, down 66, with a trading volume of 212,202 and an open interest of 397,001 [1]. Spot - The price of silicon iron (FeSi75 - B) in Inner Mongolia was 5400 yuan/ton; the price of silicon - manganese (FeMn65Si17) in Inner Mongolia was 5630 yuan/ton, up 50 yuan/ton [1]. - The price of manganese ore (Mn44 block) was 37.5 yuan/ton - degree; the price of semi - coke (small material) in Shenmu was 620 yuan/ton [1]. Price Difference - The spot - futures price difference of silicon iron (spot - 07 futures) was - 238 yuan/ton, up 52 yuan/ton; that of manganese silicon (spot - 09 futures) was - 148 yuan/ton, up 66 yuan/ton [1]. - The near - far month price difference of silicon iron 2507 - 2509 was 86 yuan/ton, down 10 yuan/ton; that of manganese silicon 2506 - 2509 was - 56 yuan/ton, up 4 yuan/ton [1]. - The cross - variety price difference of manganese silicon 2507 - silicon iron 2507 was 100 yuan/ton, down 16 yuan/ton; that of manganese silicon 2509 - silicon iron 2509 was 226 yuan/ton, down 24 yuan/ton [2]. 2. Macro and Industry News - On May 20, the price range of 72 silicon iron in different regions was 5300 - 5450 yuan/ton, and that of 75 was 5850 - 6000 yuan/ton; the FOB price of 72 was 1020 - 1050 dollars/ton, and that of 75 was 1100 - 1120 dollars/ton. The mainstream price range of 6517 silicon - manganese in the north was 5600 - 5700 yuan/ton, and in the south was 5700 - 5750 yuan/ton [1]. - Hegang set the purchase price of 75B silicon iron in May at 5800 yuan/ton, down 150 yuan/ton from April, with a quantity of 2135 tons, up 435 tons from April. Several steel mills in different regions set their silicon - manganese purchase prices and quantities in May [1]. - In April 2025, China exported 3423.245 tons of silicon - manganese, and 8362.25 tons from January to April; imported 426.324 tons in April, and 4301.178 tons from January to April [3]. - In April 2025, the national manganese ore import volume was 297.12 million tons, a month - on - month increase of 104.01 million tons (↑53.86%) and a year - on - year increase of 82.7 million tons (↑38.57%). From January to April 2025, the cumulative import volume was 883.14 million tons, a year - on - year decrease of 59.41 million tons (↓6.30%) [3]. - The top five manganese ore importing countries in April 2025 were South Africa (145.65 million tons), Gabon (69.87 million tons), Ghana (55.40 million tons), Cote d'Ivoire (10.60 million tons), and Australia (6.30 million tons), accounting for 96.87% of the total import volume [3]. - South32 announced the resumption of Australian manganese ore export sales from its Groote Eylandt Mining Company (GEMCO). The first batch of manganese ore is being loaded and is expected to leave the newly rebuilt terminal in the next few days. Export sales are expected to increase in the June quarter of 2025 and normalize in fiscal year 26 [4]. - NMT announced the loading price of manganese ore for China in June 2025. The price of South African lump ore with a minimum Mn content of 36% is 3.85 dollars/ton - degree, and that of 35% is 3.75 dollars/ton - degree, unchanged from last month [4].