供需弱势，烧碱持续下探

1. Report Industry Investment Rating No relevant content provided. 2. Core View of the Report - The supply - demand of PVC and caustic soda is weak, with cost support emerging in the PVC market and caustic soda prices continuing to decline [1][3] - For PVC, pay attention to subsequent device maintenance and macro - policy dynamics; for caustic soda, focus on liquid chlorine price trends and caustic soda device dynamics [3][5] 3. Summary by Relevant Catalogs Market News and Important Data PVC - Futures and Basis: The closing price of the PVC main contract is 4431 yuan/ton (+5), the East China basis is - 41 yuan/ton (-25), and the South China basis is - 21 yuan/ton (-45) [1] - Spot Prices: The East China calcium carbide - based PVC is quoted at 4390 yuan/ton (-20), and the South China calcium carbide - based PVC is 4410 yuan/ton (-40) [1] - Upstream Production Profits: The semi - coke price is 800 yuan/ton (+0), the calcium carbide price is 2905 yuan/ton (+0), the calcium carbide profit is - 25 yuan/ton (+0), the gross profit of PVC calcium carbide - based production is - 1019 yuan/ton (-139), the gross profit of PVC ethylene - based production is - 472 yuan/ton (-8), and the PVC export profit is - 4.4 dollars/ton (+6.3) [1] - Inventory and Operating Rates: PVC factory inventory is 32.6 tons (+0.3), social inventory is 52.9 tons (+0.1), the calcium carbide - based PVC operating rate is 82.09% (-0.12%), the ethylene - based PVC operating rate is 71.92% (+0.80%), and the overall PVC operating rate is 79.01% (+0.16%) [1] - Downstream Orders: The pre - sales volume of production enterprises is 69.8 tons (+2.9) [1] Caustic Soda - Futures and Basis: The closing price of the SH main contract of caustic soda is 2124 yuan/ton (+24), and the basis of 32% liquid caustic soda in Shandong is 95 yuan/ton (-87) [1] - Spot Prices: The price of 32% liquid caustic soda in Shandong is 710 yuan/ton (-20), and the price of 50% liquid caustic soda is 1180 yuan/ton (-20) [1] - Upstream Production Profits: The single - variety profit of caustic soda in Shandong is 1198 yuan/ton (-63); the comprehensive profit of chlor - alkali in Shandong (0.8 tons of liquid chlorine) is 593.8 yuan/ton (-62.5); the comprehensive profit of chlor - alkali in Shandong (1 ton of PVC) is - 513.21 yuan/ton (-92.50); the comprehensive profit of chlor - alkali in the Northwest (1 ton of PVC) is 399.00 yuan/ton (+0.00) [2] - Inventory and Operating Rates: The inventory of liquid caustic soda factories is 50.48 tons (+3.50), the inventory of flake caustic soda factories is 3.37 tons (+0.10), and the caustic soda operating rate is 86.00% (+1.00%) [2] - Downstream Operating Rates: The operating rate of alumina is 86.20% (+0.14%), the operating rate of printing and dyeing in East China is 64.46% (-1.06%), and the operating rate of viscose staple fiber is 91.29% (+0.00%) [2] Market Analysis PVC - Supply is abundant with only one enterprise planning maintenance this week, but some enterprises may cut production due to low prices [3] - Downstream demand is weak with stable film production and declining pipe and profile production, and rigid procurement [3] - Upstream production profits are at a low level year - on - year, and the cost of calcium carbide has increased [3] - The number of PVC futures warehouse receipts is at a high level, and the export profit has decreased [3] Caustic Soda - Spot prices have fallen due to lower purchase prices from Shandong downstream enterprises [3] - Supply is increasing with reduced enterprise maintenance and new production capacity coming on - stream [3] - Demand is weak with some alumina plants reducing purchases and non - aluminum demand turning weak in the off - season [3] - Inventory is accumulating, and the chlor - alkali profit is at a low level [3] Strategy PVC - Single - side Trading: Cautiously bearish, with limited downside space [4] - Inter - delivery Spread: Hold a wait - and - see attitude [4] - Cross - variety Trading: No strategy [4] Caustic Soda - Single - side Trading: Cautiously bearish, with limited downside space [5] - Inter - delivery Spread: Hold a wait - and - see attitude [5] - Cross - variety Trading: No strategy [5]