Report Industry Investment Rating - Not provided in the document Core Viewpoints - The caustic soda market is currently in a situation of supply contraction, weak demand, and improving profits. Liquid caustic soda is expected to stabilize in the short term, and prices in Shandong may rise slightly. The futures market is expected to remain volatile and weak in the short term, and attention should be paid to the sustainability of the rebound in Shandong spot prices and the cost - side logic transformation caused by liquid chlorine price fluctuations [4]. - For trading strategies, a unilateral long position in caustic soda is recommended as prices may rise steadily; for arbitrage and options, it is advisable to wait and see [5]. Summary by Directory 1. Comprehensive Analysis and Trading Strategy Comprehensive Analysis - Supply side: This week, the number of caustic soda plant overhauls increased. The national sample enterprise operating load rate dropped to 88.47% (a 1.37% week - on - week decrease), and the output of 100% equivalent caustic soda decreased to 856,300 tons (a 1.52% week - on - week decrease), slightly alleviating the short - term supply pressure [4]. - Demand side: The operating rate of the core downstream alumina industry dropped to 80.29% (a 1.08% week - on - week decrease), weakening the support for caustic soda. Non - aluminum downstream industries such as viscose staple fiber saw a slight increase in operating rates, but overall procurement remained at a just - in - time level, and most purchases were made at low prices, resulting in a lukewarm market [4]. - Inventory side: There was a significant differentiation in inventory. For liquid caustic soda, the overall sample inventory in East China decreased by 10.25%, but the factory inventory in Shandong increased by 6.01%. For flake caustic soda, due to shipping issues and hoarding by traders, the social inventory in East China surged by 55.56%, and traders faced greater pressure to sell [4]. - Profit side: The comprehensive profit of chlor - alkali (ECU) was significantly repaired due to the sharp rebound in liquid chlorine prices, despite the decline in caustic soda prices. The profit of enterprises with self - owned power plants in Shandong increased by 49.18% to 160.2 yuan/ton, which may support manufacturers' willingness to maintain production [4]. Trading Strategy - Unilateral: Caustic soda prices may rise steadily [5]. - Arbitrage: Wait and see [5]. - Options: Wait and see [5]. 2. Core Logic Analysis - In Shandong, the delivery volume of liquid caustic soda to large alumina plants was at a high level, and prices continued to decline. From November 14 to December 6, the purchase price of 32% ion - exchange membrane caustic soda by major alumina manufacturers in Shandong decreased from 730 yuan/ton to 675 yuan/ton [7][9]. - As of December 18, 2025, the factory inventory of fixed liquid caustic soda sample enterprises with a capacity of 200,000 tons or more in China was 464,700 tons (wet tons), a 1.66% week - on - week increase and a 52.34% year - on - year increase. The capacity utilization ratio of national liquid caustic soda sample enterprises was 29.41%, a 0.41% week - on - week increase. Different regions showed different inventory trends [11]. - The supply contradiction in the alumina spot market became more prominent. Although the operating capacity of alumina was basically stable this week, the inventory of alumina at the electrolytic aluminum end continued to rise. The supply contradiction is expected to continue to be reflected in limited spot transactions [15][18]. - This week, the average capacity utilization rate of Chinese caustic soda sample enterprises with a capacity of 200,000 tons or more was 84.7%, a 1.5% week - on - week decrease. Different regions had different changes in load [20]. 3. Weekly Data Tracking Price Data - Caustic soda futures price: Various indicators such as price trends, basis, open interest, and warehouse receipts of SH01 contracts are presented [24]. - 32% liquid caustic soda spot price: The price trends of 32% liquid caustic soda in Shandong, Jiangsu, and Zhejiang are shown [27]. - 50% caustic soda spot price: The price trends of 50% caustic soda in Shandong, Jiangsu, and Guangdong are presented [30]. - Flake caustic soda spot price: The price trends of flake caustic soda in Shandong, Southwest, Northwest, Guangdong, and Guangxi are shown [32]. - Caustic soda variety spread: The price spreads between different types of caustic soda in Shandong, Jiangsu, and Guangdong are presented [34]. - Caustic soda regional spread: The price spreads of caustic soda between different regions are presented [37]. - Caustic soda profit: The profit trends of caustic soda and chlor - alkali in Shandong and Jiangsu, as well as the price trends of liquid chlorine, are shown [39]. Inventory Data - Caustic soda inventory: The inventory trends of liquid caustic soda and flake caustic soda are presented [41]. - Caustic soda inventory by province: The inventory trends of liquid caustic soda in Shandong and Jiangsu are presented [45]. Production Data - Caustic soda production: The production trends of caustic soda and solid caustic soda are presented [48]. - Caustic soda production by province: The production trends of caustic soda in Shandong, Jiangsu, and Zhejiang are presented [50]. New Capacity and Overhaul - New capacity: In 2025, a total of 2.1 million tons of new caustic soda capacity is expected to be put into production, and some projects have already been successfully launched. In the alumina industry, a large amount of new capacity is expected to be put into production at the end of this year and next year [51][52][64]. - Plant overhauls: A list of caustic soda plant overhauls in different regions and enterprises is presented [54]. Consumption Data - Caustic soda consumption: The demand and weekly consumption trends of caustic soda, liquid caustic soda, and flake caustic soda are presented [56][57]. Alumina - related Data - Alumina operating capacity: The production, operating capacity, and operating rate trends of alumina are presented [60][61]. Downstream Industry Data - Viscose staple fiber: This week, the capacity utilization rate of the viscose staple fiber industry was 89.52%, a 1.75% week - on - week increase [66]. - Printing and dyeing industry: As of September 18, 2025, the comprehensive operating rate in the Jiangsu and Zhejiang regions was 65.76%, remaining flat compared to the previous period. The operating rates in different regions had different trends, and the overall market atmosphere was stable [70]. Export Data - Caustic soda export: The export volume, FOB price, and export profit trends of caustic soda are presented [72][73]. - Caustic soda export destinations: The export volume trends of caustic soda to Australia, Indonesia, Taiwan, and Vietnam are presented [76]. - Overseas alumina new capacity: In 2025, it is estimated that 4.5 million tons of new alumina capacity will be put into production overseas, and most of the new alumina plants in Indonesia have already been put into operation, and the caustic soda procurement has been completed [81].

烧碱：后期仍有压力 PVC：趋势偏弱 国泰君安期货研究所·陈嘉昕 投资咨询从业资格号：Z0020481 日期：2025年12月21日 Guotai Junan Futures all rights reserved, please do not reprint CONTENTS 观点综述 01 烧碱价格及价差 02 烧碱供应 03 烧碱需求 04 PVC价格及价差 05 PVC供需 06 Special report on Guotai Junan Futures 2 观点综述 1 烧碱观点：后期仍有压力 供应 中国20万吨及以上烧碱样本企业产能平均利用率为84.7%，较上周环比-1.5%。分区域来看，华北有前期负荷不满装置提负，负荷小幅上 升，华北+0.3%至82.4%，其中山东-0.1%至92.9%。华东、西南、华中、华南负荷下滑，华东、华南地区存在企业检修，负荷下滑明显 ， 华东-6.0%至71.9%，西南-5.3%至79.0%，华南-4.6%至84.5%，华中-0.8%至81.9%。其它大区基本稳定。 需求 氧化铝方面，由于高产量、高库存的格局，利润被持续压缩，氧化铝减产只是时间问题。虽然年底到明年年 ...

交易咨询业务：沪证监许可【2012】 1515号 能化产品周报—烧碱 2025年6月5日 研究员： 屠越海 执业编号:Z0019382 审核：唐韵Z0002422 基本面要点： 价格：6月4日，烧碱主力合约（SH2509）收盘报 2367元 / 吨，较前一交易日下跌1.95%。山东地区32%离子膜碱：市场主流成交价格为840-925 元/吨。50%离子膜碱：主流成交价格为1350-1410元/吨。下游大型氧化铝工厂32%液碱采购价：840元/吨。32%液碱：市场主流成交价格为 930-1020元/吨。48%液碱：市场主流成交价格为1480-1570元/吨。 供给： 本周国内 20 万吨及以上烧碱装置产能利用率为 84.1%，较此前一周环比上升 1.6 个百分点 。 http://www.eafutures.com 免责声明：本报告的信息均来源于公开资料，我公司对这些信息的准确性和完整性不做任何 保证，也不保证所包含的信息和建议不会发生任何变更。文中的观点、结论和建议仅供参考， 报告中的信息或意见并不构成所述证券或期货的买卖出价或征价，投资者据此做出 的任何投 资决策与本公司和作者无关。 地址：上海市虹口区东大 ...