投资咨询业务资格：证监许可【2012】669号 中信期货研究|⿊⾊建材策略⽇报 2025-12-09 宏观⽀撑有限，盘⾯延续弱势 中央政治局会议强调继续实施更加积极的财政政策和适度宽松的货币 政策，未有超预期信号释放。近期钢⼚盈利率有所改善，预计后期钢 材产量难以⼤幅下降，基本⾯在进⼊淡季之后仍有压⼒，钢材盘⾯弱 势运⾏。铁⽔仍有季节性⾛弱预期，蒙煤进⼝仍有增加预期，铁矿、 煤焦盘⾯表现偏弱，玻纯供需过剩继续压制盘⾯价格。 中央政治局会议强调继续实施更加积极的财政政策和适度宽松的货币 政策，未有超预期信号释放。近期钢厂盈利率有所改善，预计后期钢 材产量难以大幅下降，基本面在进入淡季之后仍有压力，钢材盘面弱 势运行。铁水仍有季节性走弱预期，蒙煤进口仍有增加预期，铁矿、 煤焦盘面表现偏弱，玻纯供需过剩继续压制盘面价格。 1. 铁元素方面：铁水下降明显，下游需求下滑，钢厂进行年度检 修，但钢厂盈利率略有好转，补库需求释放仍偏慢。海外矿山发运环 比略增，澳洲发运回升，巴西发运冲高回落，非主流发运环比大幅增 加，本期到港环比减量明显。但港口库存环比继续累积，钢厂库存环 比增加，整体仍有累库压力。废钢基本面矛盾有限，现货 ...

Report Overview - The report is a weekly analysis of the black commodity sector, covering steel products, iron ore, glass, and soda ash, with data from November 28 to December 5, 2025 [1][2] 1. Report Industry Investment Rating - No industry investment rating is provided in the report 2. Report's Core View - In the medium to long - term, the steel industry's prosperity is declining, with weakening demand for rebar and downward pressure on iron ore futures prices. Glass and soda ash also face challenges, with limited upward momentum for glass and weak demand for soda ash [67][71] - In the short - term, rebar and iron ore are expected to trade in a range, while glass and soda ash are likely to show a weak and oscillating trend [68][72] 3. Summary by Related Catalogs 3.1 Black Commodities Weekly Market Review - **Rebar (RB2605)**: Futures price rose from 3117 to 3157 (up 1%), with a spot price of 3290 and a basis of 133 [2] - **Hot - rolled coil (HC2605)**: Futures price increased from 3288 to 3320 (up 1%), spot price 3300, basis - 20 [2] - **Iron ore (I2601)**: Futures price dropped from 794 to 786 (down 1%), spot price 810, basis 25 [2] - **Coke (J2601)**: Futures price rose from 1575 to 1585 (up 1%), spot price 1720, basis 135 [2] - **Coking coal (JM2605)**: Futures price decreased from 1152 to 1140 (down 1%), spot price 1510, basis 370 [2] - **Glass (FG601)**: Futures price fell from 1053 to 994 (down 6%), spot price 1130, basis 136 [2] - **Soda ash (SA601)**: Futures price declined from 1177 to 1137 (down 3%), spot price 1258, basis 121 [2] 3.2 Rebar Analysis - **Profit**: On December 4, the blast - furnace profit for rebar was 31 yuan/ton [6] - **Supply**: As of December 5, the blast - furnace operating rate was 80.16% (down 0.93 percentage points), daily hot - metal output was 232.3 tons (down 2.38 tons), and weekly rebar production was 189.31 tons (down 16.77 tons) [12] - **Demand**: In the week of December 5, the apparent consumption of rebar was 216.98 tons (down 10.96 tons). As of December 4, the trading volume of construction steel by major traders was 93,867 tons [18] - **Inventory**: In the week of December 5, social rebar inventory was 361.13 tons (down 23.62 tons), and in - plant inventory was 142.68 tons (down 4.05 tons) [23] 3.3 Iron Ore Analysis - **Supply**: In the week of November 28, global iron - ore shipments were 3323.2 tons (up 44.8 tons), and arrivals at 47 Chinese ports were 2784 tons (down 155.5 tons) [28] - **Inventory**: As of December 5, the inventory of imported iron ore at 47 ports was 15991.11 tons (up 89.89 tons), and the inventory of 247 steel enterprises was 8984.73 tons (up 42.25 tons) [33] - **Demand**: In the week of December 5, the average daily port clearance volume of imported iron ore at 47 ports was 334.23 tons (down 9.83 tons). As of December 4, the trading volume at major Chinese ports was 126.6 tons [38] 3.4 Float Glass Analysis - **Supply**: In the week of December 5, the number of operating float - glass production lines was 218 (down 2), weekly output was 1085095 tons (down 18800 tons). As of December 4, the capacity utilization rate was 77.25%, and the operating rate was 73.4% [43] - **Inventory**: In the week of December 5, in - plant float - glass inventory was 59.442 million weight - boxes (down 2.92 million tons), and the available inventory days were 26.8 days (down 0.7 days) [48] - **Demand**: In the week of December 1, the deep - processing order days of glass downstream manufacturers were 10.1 days [52] 3.5 Soda Ash Analysis - **Supply**: In the week of December 5, the capacity utilization rate of soda ash was 80.74% (down 0.66 percentage points), and production was 70.39 tons (up 0.57 tons) [55] - **Inventory**: As of December 5, in - plant soda - ash inventory was 153.86 tons (down 4.88 tons) [60] - **Sales Ratio**: As of December 5, the soda - ash sales ratio was 106.93% (down 1.23 percentage points) [64] 3.6 Strategy Recommendations - **Rebar and Iron Ore**: Medium - to long - term outlook is bearish due to weakening demand and low winter - storage willingness. Short - term trading should be based on a range - bound strategy [67][68] - **Glass and Soda Ash**: Medium - to long - term, glass has limited upward momentum, and soda - ash demand is weak. Short - term, they are expected to trade weakly and oscillate [71][72]

Report Industry Investment Rating No relevant content provided. Core Viewpoints - The overall finished steel is supported by raw material costs, with gradually improving profits. The market may pre - trade market expectations, and steel prices are expected to fluctuate moderately. The operating range of rebar may be between 3000 - 3300, and that of hot - rolled coil between 3200 - 3500. Attention should be paid to the destocking speed of steel and downstream consumption [3]. - Steel demand has entered the off - season, and steel mills have actively carried out maintenance and production cuts. After the reduction in steel production, steel inventory has been destocked, and the contradictions in the industrial chain have been alleviated. The price of coking coal has generally declined, benefiting steel mills, and the profits of steel mills have recently increased. Steel mills now have the space and motivation for new production increases. Steel currently has low raw material inventory and has the demand for winter storage replenishment. With the approaching of the Fed's interest - rate meeting and the Central Economic Work Conference, macro - expectations provide support, and the short - term price decline space is limited [21]. - For coking coal, the marginal change in supply is limited, but the profits of terminal steel mills are under pressure, and the production of hot metal has been continuously reduced. The supply and demand of coking coal have turned into a slight surplus. Coking enterprises are actively controlling the raw material procurement rhythm due to the expected price cuts, and the inventory pressure on upstream mines is becoming apparent. Short - term coal prices will still be under pressure. For coke, as the cost of coking coal has decreased, the immediate coking profit has recovered, and the subsequent coke supply is expected to increase. As the coking enterprises' production gradually resumes, coke may face inventory accumulation pressure. Attention should be paid to the price - cut rhythm of mainstream steel mills. Considering that the futures market has already priced in 4 - 5 rounds of price cuts in advance, the spot price of coke may face more than 2 rounds of price - cut pressure [31]. - Ferroalloys face the fundamentals of high inventory and weak demand. The cost center may decline due to the impact of coking coal supply guarantee, but the supply side maintains the trend of production cuts, so the downward space for ferroalloys is limited, and they are expected to fluctuate weakly. Recently, the price of finished steel has been relatively strong, and the market may pre - hype market expectations, driving the rebound of ferroalloys. However, due to the weak fundamentals of ferroalloys themselves, they may return to their own fundamentals after the rebound [47]. - Soda ash is mainly priced based on cost. Although the cost - side expectation is firm, the valuation has no upward elasticity without a trend - based production cut. The cold repair of glass has accelerated, and the expected rigid demand for soda ash has further weakened. The expectation of maintaining a high - level supply of soda ash in the medium and long term remains unchanged. Photovoltaic glass has started inventory accumulation at a low level, and the daily melting volume is relatively stable, and the balance of heavy soda ash continues to be in surplus. In October, the export of soda ash exceeded 210,000 tons, remaining at a high level, which continues to relieve the domestic pressure to a certain extent. The high - level inventory in the upstream and mid - stream restricts the price of soda ash [61]. - In December, the expectation of cold repair of glass production lines has resurfaced, and the implementation situation is to be determined, which will definitely affect the far - month pricing and market expectations. However, the near - month 01 contract will still follow the reality (delivery logic), and the key lies in the spot price in Hubei and the expectation of warehouse receipts. In reality, with the recent acceleration of cold repair and the expected further decline in daily melting volume, but the terminal has entered the off - season, and the inventory of futures, cash, and traders in Shahe and Hubei remains at a high level, so there is still pressure on the spot price. The degree of inventory destocking in the mid - stream should be observed [84]. Summary by Related Catalogs Steel - **Prices and Spreads** - On December 5, 2025, the closing prices of rebar 01, 05, and 10 contracts were 3137, 3157, and 3192 respectively, and those of hot - rolled coil 01, 05, and 10 contracts were 3312, 3320, and 3329 respectively [4]. - The spot prices of rebar and hot - rolled coil in different regions showed slight changes on December 5, 2025. For example, the aggregated price of rebar in China was 3326 yuan/ton, and that of hot - rolled coil in Shanghai was 3300 yuan/ton [9][11]. - The 01 - 05, 05 - 10, and 10 - 01 month - spreads of rebar and hot - rolled coil also changed compared with the previous day [4]. - The 01, 05, and 10 contract ratios of rebar to iron ore and coke remained unchanged at 4 and 2 respectively on December 5, 2025 [18]. - **Seasonal Data** - Seasonal charts of rebar and hot - rolled coil's futures prices, month - spreads, and basis were provided [5][6][7]. Iron Ore - **Prices and Spreads** - On December 5, 2025, the closing prices of iron ore 01, 05, and 09 contracts were 785.5, 769, and 744 respectively, with daily changes of - 9, - 8, and - 9 respectively [22]. - The basis of iron ore 01, 05, and 09 contracts and the prices of different iron ore varieties in Rizhao also showed certain changes [22]. - **Fundamentals** - On December 5, 2025, the daily average hot - metal production was 232.3 tons, a weekly decrease of 2.38 tons and a monthly decrease of 1.92 tons. The 45 - port desulfurization volume was 318.45 tons, a weekly decrease of 12.13 tons and a monthly decrease of 2.48 tons. Other indicators such as global shipping volume, 45 - port inventory, and 247 - steel - mill inventory also changed [25]. - **Seasonal Data** - Seasonal charts of iron ore's futures month - spreads and basis were provided [23][24]. Coking Coal and Coke - **Prices and Spreads** - The month - spreads of coking coal and coke, such as 09 - 01, 05 - 09, and 01 - 05, showed different degrees of changes on December 5, 2025. The immediate coking profit, main mine - coke ratio, main rebar - coke ratio, and main coke - coal ratio also changed [35]. - The spot prices of coking coal and coke in different regions and different types showed certain fluctuations on December 5, 2025 [38]. - **Seasonal Data** - Seasonal charts of coking coal and coke's futures month - spreads, basis, and coking profit were provided [40][41][42]. Ferroalloys - **Silicon Iron** - On December 5, 2025, the silicon - iron basis in Ningxia was - 24, with a daily increase of 72. The 01 - 05, 05 - 09, and 09 - 01 month - spreads also changed. The spot prices of silicon iron in different regions remained relatively stable, and indicators such as the price of semi - coke small materials and the price of thermal coal also showed certain changes [48]. - **Silicon Manganese** - On December 5, 2025, the silicon - manganese basis in Inner Mongolia was 122, with a daily increase of 38. The 01 - 05, 05 - 09, and 09 - 01 month - spreads changed. The spot prices of silicon manganese in different regions increased slightly, and the prices of different ores and the inventory of silicon manganese also changed [49][50]. - **Seasonal Data** - Seasonal charts of silicon - iron and silicon - manganese's production costs, profits, month - spreads, and basis were provided [51][52][53]. Soda Ash - **Prices and Spreads** - On December 5, 2025, the closing prices of soda ash 05, 09, and 01 contracts were 1213, 1275, and 1137 respectively, with daily changes of - 19, - 19, and - 25 respectively. The month - spreads (5 - 9), (9 - 1), and (1 - 5) also changed. The spot prices of heavy and light soda ash in different regions remained stable, and the difference between heavy and light soda ash also remained unchanged in most regions [62]. - **Seasonal Data** - Seasonal charts of soda ash's futures prices, month - spreads, basis, inventory, production capacity utilization, and production were provided [63][64][65]. Glass - **Prices and Spreads** - On December 5, 2025, the closing prices of glass 05, 09, and 01 contracts were 1115, 1176, and 994 respectively, with daily changes of - 16, - 12, and - 16 respectively. The month - spreads (5 - 9), (9 - 1), and (1 - 5) also changed. The basis of different contracts in Shahe and Hubei also changed [85]. - **Sales and Production** - The daily sales - to - production ratios of glass in Shahe, Hubei, East China, and South China showed different degrees of fluctuations from November 28 to December 4, 2025 [86]. - **Seasonal Data** - Seasonal charts of glass's futures prices, month - spreads, basis, inventory, daily melting volume, and sales - to - production ratio were provided [87][88][89].

黑色建材日报 | 2025-12-05 基本面矛盾不足，钢价区间震荡运行 玻璃纯碱：供需格局未改，玻碱震荡偏弱 市场分析 玻璃方面：昨日玻璃期货盘面震荡下行，盘面成交活跃，持仓量下降。现货方面，区域有所分化，整体维持弱稳。 据隆众数据显示，本周浮法玻璃厂家库存5944.2万重箱，环比减少4.68%。供需与逻辑：伴随玻璃产线冷修增加， 带动玻璃需求小幅好转，但玻璃供应收缩程度仍显不足，供需矛盾依旧较大。库存有所去化，但仍处高位。后续 玻璃厂仍需通过长期亏损完成产能出清，持续关注玻璃冷修及宏观政策情况。 纯碱方面：昨日纯碱期货盘面震荡下行。现货方面，整体价格持稳，以刚需采购为主。供需与逻辑：纯碱产销存 数据均有所回落，供需矛盾得到小幅缓解，但库存仍处于高位。且考虑到后续浮法玻璃冷修仍有增加预期，重碱 需求面临挑战，压制纯碱价格高度，持续关注下游需求情况对纯碱价格的影响。 策略 玻璃方面：震荡 纯碱方面：震荡 跨期：无 跨品种：无 风险 宏观及房地产政策、浮法玻璃下游需求、纯碱产线检修和库存变化等。 双硅：建材消费数据尚可，合金期货有所反弹 市场分析 硅锰方面，昨日钢联公布了本周钢材消费情况，整体看建材消费强劲，去 ...

Report Industry Investment Rating No information provided. Core View of the Report The fundamentals of soda ash are weak, and it is expected to mainly fluctuate and move downward in the short term. The supply of soda ash is at a high level, terminal demand is declining, inventory is at a high level in the same period, and the pattern of supply - demand mismatch in the industry has not been effectively improved [2][5]. Summary by Relevant Catalogs 1. Daily View - The fundamentals show that the output of soda ash plants is at a high level, the second - phase of Yuangxing is expected to be put into production before the end of the year, and the overall supply is expected to be abundant; the daily melting volume of downstream float glass and photovoltaic glass continues to decline, and the inventory of soda ash plants is at a high level in the same period, which is bearish [2]. - The basis is - 32 yuan, with futures at a premium to spot, which is bearish [2]. - The national inventory of soda ash plants is 153.86 million tons, a decrease of 3.07% from the previous week, and the inventory is running above the 5 - year average, which is bearish [2]. - The price is running below the 20 - day line, and the 20 - day line is downward, which is bearish [2]. - The net position of the main force is short, and short positions are increasing, which is bearish [2]. 2. Influence Factors Summary - **Lithium**: Equipment problems lead to production reduction and maintenance of enterprises, and the recovery of soda ash supply is slow [3]. - **Negative**: Since 2023, the production capacity of soda ash has expanded significantly, and there are still large production plans this year, and the industry output is at a high level in the same period; the production of photovoltaic glass, a downstream product of heavy soda, has been reduced, and the demand for soda ash has weakened [4]. 3. Soda Ash Futures Market - The closing price of the main contract is 1162 yuan/ton, a decrease of 0.26% from the previous value; the low - end price of heavy soda ash in Shahe is 1130 yuan/ton, unchanged from the previous value; the main basis is - 32 yuan/ton, a decrease of 8.57% from the previous value [6]. 4. Soda Ash Spot Market - The low - end price of heavy soda ash in the Hebei Shahe market is 1130 yuan/ton, unchanged from the previous day [11]. - The profit of heavy soda ash in North China's ammonia - soda process is - 118.50 yuan/ton, and that in East China's co - production process is - 220 yuan/ton, at a historical low [14]. - The weekly industry operating rate of soda ash is 80.08%, and the weekly output is 69.82 million tons, including 38.31 million tons of heavy soda ash, with the output at a historical high [17][19]. - From 2023 to 2025, a large amount of new production capacity has been added or is planned to be added, with a total planned addition of 1570 million tons and an actual addition of 920 million tons [20]. 5. Fundamental Analysis - Demand - The weekly production - sales rate of soda ash is 108.16% [23]. - The daily melting volume of national float glass is 15.72 million tons, and the operating rate is 74.85% [26]. 6. Fundamental Analysis - Inventory - The national inventory of soda ash plants is 153.86 million tons, a decrease of 3.07% from the previous week, and the inventory is running above the 5 - year average [33]. 7. Fundamental Analysis - Supply - Demand Balance Sheet - From 2017 to 2024E, the supply - demand situation of soda ash has fluctuated. In 2024E, the effective production capacity is 3930 million tons, the output is 3650 million tons, the apparent supply is 3536 million tons, the total demand is 3379 million tons, and the supply - demand difference is 157 million tons [34].

黑色建材日报 2025-12-05 黑色建材组 陈张滢 从业资格号：F03098415 交易咨询号：Z0020771 0755-23375161 chenzy@wkqh.cn 郎志杰 从业资格号：F3030112 交易咨询号：Z0023202 0755-23375125 langzj@wkqh.cn 万林新 从业资格号：F03133967 0755-23375162 wanlx@wkqh.cn 赵 航 从业资格号：F03133652 0755-23375155 zhao3@wkqh.cn 【行情资讯】 螺纹钢主力合约下午收盘价为 3175 元/吨, 较上一交易日涨 6 元/吨（0.189%）。当日注册仓单 44141 吨, 环比减少 0 吨。主力合约持仓量为 141.1905 万手，环比增加 114799 手。现货市场方面, 螺纹钢天津汇总 价格为 3210 元/吨, 环比减少 10/吨; 上海汇总价格为 3300 元/吨, 环比减少 0 元/吨。 热轧板卷主力合 约收盘价为 3332 元/吨, 较上一交易日涨 13 元/吨（0.391%）。 当日注册仓单 113732 吨, 环比减少 0 吨。 主力合约持仓 ...

Summary of the Soda Ash Industry Conference Call Industry Overview - The soda ash market in China is characterized by significant capacity concentration, with the top ten companies holding a total capacity of 24.5 million tons, accounting for 60.8% of the national total [2][7] - Major players include Henan Jingshan, Guoyin Yinkeng, and Shandong Haohua, which significantly influence market prices [2][7] Production Capacity and Methods - As of 2025, China's total soda ash production capacity reached 44.05 million tons, with over 8 million tons added since 2020, primarily in North and Central China [2][12] - Production methods include natural soda method and synthetic soda methods (ammonia-soda method and combined soda method), with the latter being predominant in China [2][6] Price Influencing Factors - Soda ash prices are affected by supply and demand dynamics, new production capacity, macroeconomic policies, and inventory levels [4][13] - In July 2025, glass prices rebounded significantly but later fell, indicating volatility in the market [4] - The first ten months of 2025 saw a drastic reduction in soda ash imports by 97.78% and a notable increase in exports by 101.57%, driven by price advantages [4][17] Regional Production Distribution - The regional distribution of soda ash production in China is uneven, with East China and Central China accounting for the highest shares at 28% and 27%, respectively [2][16] Future Trends and Challenges - The soda ash industry is expected to continue expanding production capacity due to government support for low-cost natural gas projects and rising demand [15][21] - However, challenges include overcapacity and potential losses among manufacturers, which may limit short-term expansion [15][19] - The market may face supply-demand imbalances, particularly if downstream demand does not improve significantly [19][22] Downstream Demand Impact - Key downstream sectors include photovoltaic glass, float glass, daily glass, sodium bicarbonate, and lithium carbonate, with photovoltaic and lithium carbonate being future growth points [22] - Stable growth in downstream demand is crucial for alleviating current supply-demand conflicts and promoting industry recovery [22] Inventory and Supply Chain Management - High inventory levels are expected to persist, with peaks nearing 2 million tons in early 2025, particularly around the Spring Festival [18] - The industry may need to adjust supply chain management and enhance technological capabilities to address challenges [15][19]

Core Insights - The report emphasizes the gradual recovery of the chemical industry, with profit declines slowing down and demand gradually rebounding, particularly in sub-sectors like agricultural chemicals and fluorochemicals [22][23] - The AI application in various industries is accelerating, with significant advancements in hardware and software, leading to a reshaping of the global landscape [24][25] - The food and beverage industry is experiencing a slowdown in revenue growth, with rising costs impacting profit margins, yet there are emerging opportunities in niche markets like snacks and soft drinks [27][28] Domestic Market Performance - The A-share market is showing signs of stabilization, with the Shanghai Composite Index and the ChiNext Index trading at average P/E ratios above their three-year median, indicating a suitable environment for medium to long-term investments [9][13][15] - The coal and non-ferrous metals sectors are leading the market, while sectors like internet services and software development are underperforming [9][13] Industry Analysis - The electric power and public utilities sector is rated "stronger than the market," with a focus on stable returns and shareholder value, particularly in large hydropower companies and high-dividend coal enterprises [20] - The photovoltaic industry is facing challenges with overcapacity and price stability, but there is potential for recovery as the market undergoes structural adjustments [30][33] Investment Strategies - The report suggests a balanced investment strategy, focusing on high-dividend assets like banks and utilities for defensive positioning, while also considering growth opportunities in technology and AI sectors [12][24] - Specific recommendations include monitoring companies in the chemical sector that are well-positioned to benefit from supply-demand dynamics and regulatory changes [22][23]

黑色产业链日报 2025/12/03 咨询业务资格：沪证监许可【2012】1515号 研报作者：许亮 Z0002220 审核：唐韵 Z0002422 【免责声明】 本报告基于本公司认为可靠的、已公开的信息编制，但本公司对该等信息的准确性及完整性不作任何保证。本报告所载的意见、结论及预测仅反映报告发布时的观点、结论 和建议。在不同时期，本公司可能会发出与本报告所载意见、评估及预测不一致的研究报告。本公司不保证本报告所含信息保持在最新状态。本公司对本报告所含信息可在不发出通知的情 形下做出修改， 交易者（您）应当自行关注相应的更新或修改。本公司力求报告内容客观、公正，但本报告所载的观点、结论和建议仅供参考，交易者（您）并不能依靠本报告以取代行 使独立判断。对交易者（您）依据或者使用本报告所造成的一切后果，本公司及作者均不承担任何法律责任。本报告版权仅为本公司所有。未经本公司书面许可，任何机构或个人不得以翻 版、复制、发表、引用或再次分发他人等任何形式侵犯本公司版权。如征得本公司同意进行引用、刊发的，需在允许的范围内使用，并注明出处为"东亚期货"，且不得对本报告进行任何有 悖原意的引用、删节和修改。本公司保留追究相 ...

Group 1: Report Industry Investment Ratings - No specific industry investment ratings are provided in the report. Group 2: Core Views of the Report - The macro - expectation continues to exert influence, and steel prices fluctuate within a range. Glass and soda ash markets are characterized by strong wait - and - see sentiment and fluctuate. The supply - demand contradictions in glass and soda ash still exist, with high inventory pressure in glass and high - level inventory in soda ash. The prices of silicon manganese and silicon iron alloys are expected to fluctuate, affected by factors such as production, inventory, and cost [1][3] Group 3: Summary by Related Catalogs Glass and Soda Ash - **Market Analysis**: Glass futures declined yesterday, and the spot market's trading center moved down. Soda ash futures rose, supported by rising costs. The downstream of both mainly purchases on a rigid - demand basis [1] - **Supply - Demand and Logic**: For glass, although the increase in cold - repair of production lines has slightly improved demand, the supply contraction is insufficient, and high - inventory pressure remains. For soda ash, the supply - demand contradiction has been slightly alleviated, but the inventory is still high, and the expected increase in cold - repair of float glass may challenge the demand for heavy soda ash [1] - **Strategy**: Both glass and soda ash are expected to fluctuate, with no strategies for inter - period or inter - variety trading [2] Silicon Manganese and Silicon Iron - **Market Analysis**: Silicon manganese futures continued to fluctuate, and the spot market was stable. The 6517 silicon manganese price in the northern market was 5500 - 5550 yuan/ton, and in the southern market, it was 5520 - 5570 yuan/ton. Silicon iron futures fluctuated with the black - metal sector, and the spot market was weakly stable. The price of 72 - grade silicon iron natural lumps in the main production areas was 5100 - 5200 yuan/ton, and 75 - grade silicon iron was 5650 - 5700 yuan/ton [3] - **Supply - Demand and Logic**: Silicon manganese enterprises are in continuous losses, with production and operating rates declining, but the inventory is at a record high. The slight increase in port manganese ore inventory provides cost support. Silicon iron maintains high production and inventory, with weakening demand. Although the inventory has decreased due to reduced operating rates, high inventory still suppresses prices [3] - **Strategy**: Both silicon manganese and silicon iron are expected to fluctuate [4]