纯苯苯乙烯日报：EB下游开工再度回升-20250822

Report Industry Investment Rating - Not provided in the content Core Viewpoints - South Korean petrochemical companies may cut 2.7 - 3.7 million tons of naphtha cracking capacity, which boosts the downstream prices of domestic olefin derivatives. South Korea's cracked pure benzene accounts for 3.5% of the total overseas pure benzene capacity, and its styrene accounts for 16% of overseas styrene capacity, potentially supporting overseas styrene prices. However, both products face significant inventory pressure, and the spread may have a greater impact on EB supply than BZ [3]. - The high - level inventory of pure benzene at ports has slightly declined. The basis of pure benzene has recently stabilized and strengthened slightly. With South Korean aromatics undergoing maintenance from August to September, the import pressure has not increased further. The overall downstream开工 rate remains relatively high, driving the de - stocking of pure benzene, but the de - stocking amplitude is expected to be limited [3]. - The port inventory of styrene has accumulated again. The downstream EPS and PS开工 rates continue to rise, but the inventory of EPS and PS has not continued to decline further, and ABS still maintains a state of high inventory and low开工 rate. The actual inventory pressure of EB still exists [3]. Summary by Directory 1. Pure Benzene and EB's Basis Structure and Inter - Period Spread - The pure benzene main contract basis is - 110 yuan/ton (+0), and the styrene main contract basis is 26 yuan/ton (+31 yuan/ton). The spread between East China pure benzene spot and M2 is 0 yuan/ton (-10 yuan/ton) [1]. 2. Production Profits and Internal - External Spreads of Pure Benzene and Styrene - Pure benzene: CFR China processing fee is 173 dollars/ton (+0 dollars/ton), FOB South Korea processing fee is 157 dollars/ton (-1 dollar/ton), and the US - South Korea spread is 51.6 dollars/ton (-3.0 dollars/ton). Downstream production profits: caprolactam is - 1845 yuan/ton (-25), phenol - acetone is - 701 yuan/ton (+50), aniline is - 204 yuan/ton (-43), and adipic acid is - 1331 yuan/ton (+5) [1]. - Styrene: Non - integrated production profit is - 298 yuan/ton (+45 yuan/ton), and it is expected to gradually compress [1]. 3. Inventory and Operating Rates of Pure Benzene and Styrene - Pure benzene: Port inventory is 14.40 million tons (-0.20 million tons), and the开工 rate of downstream products varies. Caprolactam开工 rate is 91.86% (-1.86%), phenol开工 rate is 78.00% (+1.00%), aniline开工 rate is 70.10% (-1.47%), and adipic acid开工 rate is 65.50% (+3.80%) [1]. - Styrene: East China port inventory is 161,500 tons (+12,700 tons), East China commercial inventory is 76,500 tons (+7,000 tons), and the开工 rate is 78.5% (+0.4%) [1]. 4. Operating Rates and Production Profits of Styrene Downstream - EPS production profit is 58 yuan/ton (-35 yuan/ton), PS production profit is - 122 yuan/ton (-15 yuan/ton), ABS production profit is - 88 yuan/ton (-39 yuan/ton). EPS开工 rate is 60.98% (+2.90%), PS开工 rate is 57.50% (+1.10%), and ABS开工 rate is 71.10% (+0.00%) [2]. 5. Operating Rates and Production Profits of Pure Benzene Downstream - Caprolactam production profit is - 1845 yuan/ton (-25), phenol - acetone production profit is - 701 yuan/ton (+50), aniline production profit is - 204 yuan/ton (-43), and adipic acid production profit is - 1331 yuan/ton (+5) [1]. Strategies - Unilateral: Hold a wait - and - see attitude towards both pure benzene and styrene [4]. - Basis and Inter - Period: Hold a wait - and - see attitude [4]. - Cross - Variety: Expand the EB - BZ spread on dips in the short term, as the reduction of South Korean cracking capacity has a greater impact on EB than BZ [4].