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 - The domestic liquid caustic soda market had fair transactions today, with prices in most regions remaining stable. The price of 50% liquid caustic soda in Shandong rose steadily, while the price of 48% liquid caustic soda in Jiangsu decreased. Chlor - alkali enterprises in Shandong had good shipments and low inventory pressure. Due to some enterprises having low loads or undergoing maintenance, the price of 32% liquid caustic soda remained stable, and the price of 50% liquid caustic soda rose steadily. Demand in Jiangsu was average, and the price of high - concentration caustic soda decreased slightly. The mainstream transaction price of 32% ion - membrane caustic soda in Shandong was 820 - 865 yuan/ton, and the local large - scale alumina factory's purchase price was 750 yuan/ton. The mainstream transaction price of 50% ion - membrane caustic soda in Shandong was 1270 - 1350 yuan/ton, remaining stable compared to the previous working day. The PVC price in Shandong increased by 30 yuan, and the futures主力 contract's closing price increased by 10. With intense long - short game, it is recommended to continue to stay on the sidelines. [1] Group 3: Summary by Relevant Catalogs 1. Product Price Changes - **Raw Salt**: Prices in Shandong, Jiangsu, and the Northwest remained unchanged at 200, 250, and 200 respectively [1]. - **Calcium Carbide**: The price in Inner Mongolia decreased by 15 to 2325, while the price in Shandong remained at 2780 [1]. - **Liquid Chlorine**: Prices in Shandong, Jiangsu, and the Northwest changed to - 100, - 50, and - 600 respectively, with increases of 100, 30, and 0 [1]. - **32% Liquid Caustic Soda**: Prices in Shandong, Jiangsu, and other regions remained stable at 800, 890, etc. [1]. - **50% Liquid Caustic Soda**: Prices in Shandong, Jiangsu, and other regions remained stable at 1300, 1400, etc. [1]. - **Caustic Soda Flakes**: Prices in Shandong, Inner Mongolia, the Southwest, etc. remained unchanged [1]. - **PVC**: The price in Shandong increased by 30 to 4830, and the price in Inner Mongolia remained at 4580 [1]. - **Futures and Related Indicators**: The futures主力 contract's closing price increased by 10 to 2502, and the basis in Shandong and Jiangsu decreased by 10 [1]. 2. Price Spreads - **50% Caustic Soda - 32% Caustic Soda Spread**: Remained at 100 in Shandong [1]. - **Caustic Soda Flakes - 50% Caustic Soda Spread**: Remained at 625 in Shandong [1]. - **Regional Spreads of 50% Caustic Soda and Caustic Soda Flakes**: Remained unchanged in various regions [1]. 3. Profits and Electricity Prices - **Chlor - Alkali Profits**: In Shandong, it increased by 100 to - 165, and in the Northwest, it increased by 20 to 818 [1]. - **Electricity Prices**: Remained unchanged in Shandong and Inner Mongolia at 0.75 and 0.5 respectively [1].