1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints - The macro - sentiment has declined, and the spot price of near - term caustic soda has collapsed. The upside space of caustic soda is limited, with pressure at the 2800 price level. The supply of liquid caustic soda is expected to remain high, the overall demand is weak, and both liquid and flake caustic soda have seen a week - on - week inventory build - up. The caustic soda price has been falling this week, mainly due to weakening demand in the Shandong region and a downward adjustment in the purchase price of alumina, the main downstream product [3][6]. - For different market participants, corresponding hedging strategies are recommended. For example, producers with high inventory can buy put options and sell call options; traders looking to build inventory can sell put options and buy call options; terminal customers worried about price increases can buy call options [4]. 3. Summary by Directory 3.1 Spot Price - China's caustic soda is divided into different specifications, including 32% liquid caustic soda, 50% liquid caustic soda, and 99% flake caustic soda. The price of low - concentration caustic soda in China has remained stable week - on - week. In Shandong, the average market price of 32% ion - exchange membrane liquid caustic soda is 847 yuan/ton (converted to 2646.875 yuan/dry ton), and the price of high - concentration liquid caustic soda has declined [11]. 3.2 Price Difference - **Model Price Difference**: The price differences between 50% caustic soda and 32% caustic soda, and between 99% flake caustic soda and 32% caustic soda in different regions such as Zhejiang, Jiangsu, Shandong, and Shaanxi are presented, with daily - updated data [37]. - **Regional Price Difference**: The price differences of 32% caustic soda, 50% caustic soda, and 99% flake caustic soda between different regions are analyzed, including the differences between Zhejiang - Shandong, Shaanxi - Shandong, and Jiangsu - Shandong, with daily - updated data [37]. 3.3 Supply - **Production and Supply**: China's caustic soda production capacity is mainly concentrated in North, Northwest, and East China, accounting for 80% of the total. This week, the estimated domestic caustic soda production is 828,100 tons, a week - on - week increase of 8,600 tons, and the weekly operating rate of liquid caustic soda enterprises is 84.32%, a week - on - week increase of 1.04% [55]. - **Maintenance Situation**: Many chlor - alkali plants have completed maintenance this week, while some are still under maintenance or have planned maintenance. This week's maintenance is expected to affect a total of 27,950 tons of caustic soda production in terms of 100% purity [60]. - **Flake Caustic Soda Unit Operation**: The operation status of flake caustic soda units of various manufacturers is reported, including normal operation, reduced operation, and maintenance [64]. 3.4 Downstream Demand - **Alumina**: This week, the supply of alumina has changed little. The overall supply - demand imbalance in the south has not improved significantly. As of August 7, the installed capacity of alumina in China is 114.8 million tons, the operating capacity is 94.4 million tons, and the operating rate is 82.23% [67]. - **Viscose Staple Fiber**: From August 1 to August 7, 2025, the capacity utilization rate of the viscose staple fiber industry is 84.97%, remaining unchanged from last week [67]. - **Printing and Dyeing Industry**: As of August 7, the comprehensive operating rate in the Yangtze River Delta is 69.28%, a week - on - week increase of 0.38%. The market demand in the printing and dyeing industry remains weak [67]. 3.5 Inventory - As of August 8, 2025, the inventory of domestic liquid caustic soda factories is 376,930 tons, a week - on - week increase of 3.99%. The inventory of flake caustic soda factories is 23,555 tons, a week - on - week increase of 23.65% [80]. 3.6 Valuation - **Cost Side**: The cost of caustic soda production mainly comes from raw salt and electricity. This week, the domestic industrial salt market has declined slightly, and the domestic thermal coal market price has risen [84]. - **Profit**: This week, the comprehensive profit of the chlor - alkali industry at the spot end has been compressed, with a slight increase in the cost - side price and a weakening of the liquid caustic soda market price [85]. 3.7 Chlorine - Consuming Downstream - The report presents data on the benchmark spot price of PVC, the weekly operating rate of PVC powder, the comprehensive profit of the calcium carbide method, and the comprehensive profit of the northwest integrated chlor - alkali industry. It also includes data on the capacity utilization rate and production profit of products such as propylene oxide and epichlorohydrin [97].

Group 1 - The chemical sector shows a warming trend, with caustic soda prices rising over 3% due to stable supply and seasonal demand support from key downstream industries [1] - Approximately 500,000 tons of caustic soda production capacity is expected to come online in the first half of 2025, primarily driven by the addition of 9.2 million tons of alumina production capacity [3] - The cost of caustic soda is decreasing, with a reduction of about 150 yuan per ton due to lower prices of raw salt, coal, and industrial electricity [3] Group 2 - The average utilization rate of caustic soda production decreased by 2.0% to 80.5% last week, influenced by increased maintenance of production facilities [5] - Liquid chlorine prices are under pressure due to supply-demand imbalances, affecting the profitability of chlor-alkali products [5][6] - Short-term market sentiment is improving, with expectations for price recovery in liquid caustic soda due to potential temporary production cuts from reduced profitability [7] Group 3 - Long-term supply pressures remain, with expectations that caustic soda prices will not see significant increases despite short-term strength in the market [8] - The inventory of liquid caustic soda decreased by 1.58% to 38.42 million tons, indicating a neutral to high level compared to the same period last year [5]

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