纯苯苯乙烯日报：周中EB港口库存小幅回落-20250807

Report Industry Investment Rating No relevant content provided. Core Viewpoints - BZ port inventory decreased slightly without further accumulation. Short - term downstream demand for BZ is okay, but CPL and styrene开工 rates have declined, and there is still some finished - product inventory pressure downstream, with a drop in phenol - acetone开工 rate. On the supply side, the shipping pressure from South Korea has not further increased, but the new production capacity of Yulong Petrochemical in China has an impact, and BZ processing fees continue to consolidate at a low level [3]. - For styrene, the port inventory declined again during the week. The port basis and the 09 - 10 inter - period spread of futures rebounded from the bottom. Combined with the increase in downstream提货 volume, it reflects the speculative demand for the peak seasons of "Golden September and Silver October" has emerged. However, the production schedule of white goods at the terminal is still average, there is still inventory pressure for downstream PS and ABS, and the production profit of hard plastics is also average, so the sustainability of restocking is in doubt [3]. Summary by Directory 1. Pure Benzene and EB's Basis Structure and Inter - period Spread - Figures include the relationship between the pure benzene main contract basis and the pure benzene main futures contract price, pure benzene main contract basis, pure benzene spot - M2 paper cargo spread, pure benzene continuous first - contract to continuous third - contract spread, EB main contract trend & basis, EB main contract basis, and styrene continuous first - contract to continuous third - contract spread [8][12][18]. 2. Production Profits and Domestic - Foreign Spreads of Pure Benzene and Styrene - Figures cover naphtha processing fees, the difference between pure benzene FOB South Korea and naphtha CFR Japan, styrene non - integrated device production profit, the difference between pure benzene FOB US Gulf and pure benzene FOB South Korea, the difference between pure benzene FOB US Gulf and CFR China, the difference between pure benzene FOB Rotterdam and CFR China, pure benzene import profit, styrene import profit, the difference between styrene FOB US Gulf and CFR China, and the difference between styrene FOB Rotterdam and CFR China [20][23][34]. 3. Inventory and Operating Rates of Pure Benzene and Styrene - Figures show pure benzene inventory at East China ports, pure benzene operating rate, styrene inventory at East China ports, styrene operating rate, styrene commercial inventory in East China, and styrene factory inventory [40][42][45]. 4. Operating Rates and Production Profits of Styrene Downstream - Figures display EPS operating rate, EPS production profit, PS operating rate, PS production profit, ABS operating rate, and ABS production profit [52][54][56]. 5. Operating Rates and Production Profits of Pure Benzene Downstream - Figures include caprolactam operating rate, phenol - acetone operating rate, aniline operating rate, adipic acid operating rate, caprolactam production gross profit, phenol - acetone production gross profit, aniline production gross profit, adipic acid production gross profit, PA6 regular spinning bright production gross profit, nylon filament production gross profit, bisphenol A production gross profit, PC production gross profit, epoxy resin E - 51 production gross profit, pure MDI production gross profit, and polymer MDI production gross profit [60][64][81]. Strategies - Unilateral: Hold a wait - and - see attitude towards pure benzene and styrene [4]. - Basis and Inter - period: Conduct reverse arbitrage when the spread between near - month BZ paper cargo and distant BZ2603 is high, and conduct reverse arbitrage when the BZ2603 - BZ2605 inter - period spread is high; conduct reverse arbitrage when the EB2509 - 2510 inter - period spread is high [4]. - Cross - variety: Shrink the EB - BZ spread when it is high [4].