苯乙烯去库周期结束，基差再度走弱

1. Report Industry Investment Rating - Not mentioned in the provided content 2. Core View of the Report - The destocking cycle of styrene has ended, and the basis has weakened again. Overseas gasoline crack spreads are weak, reducing the support of overseas gasoline blending for pure benzene. Although the peak of pure benzene arrivals in China has passed, there is still some arrival pressure, and port inventories have continued to accumulate. The downstream styrene start - up has bottomed out and rebounded, while the non - styrene start - up is still poor. Styrene port inventories have rebounded again, entering the pre - holiday inventory accumulation cycle, and the downstream start - up has decreased again in the off - season [1][3] 3. Summary According to the Directory I. Pure Benzene and EB's Basis Structure, Inter - Period Spreads - Pure benzene's main basis is - 100 yuan/ton (+34), and the spread between East China pure benzene spot and M2 is - 135 yuan/ton (- 10 yuan/ton). Styrene's main basis is 71 yuan/ton (+61 yuan/ton) [1] II. Pure Benzene and Styrene Production Profits, Domestic and Foreign Spreads - Pure benzene's CFR China processing fee is 126 dollars/ton (- 6 dollars/ton), and FOB Korea processing fee is 119 dollars/ton (- 6 dollars/ton). Styrene's non - integrated production profit is - 190 yuan/ton (+30 yuan/ton), with an expected gradual compression [1] III. Pure Benzene and Styrene Inventories, Operating Rates - Pure benzene port inventory is 27.30 tons (+1.30 tons). Styrene's East China port inventory is 139,300 tons (+4,600 tons), and East China commercial inventory is 84,550 tons (+2,250 tons). Pure benzene's downstream operating rates vary: caprolactam is 69.20% (- 5.37%), phenol is 76.00% (- 3.50%), aniline is 61.35% (- 14.59%), and adipic acid is 59.60% (+0.40%). Styrene's operating rate is 69.1% (+0.8%) [1] IV. Styrene Downstream Operating Rates and Production Profits - EPS production profit is 186 yuan/ton (+70 yuan/ton), PS production profit is 36 yuan/ton (- 30 yuan/ton), and ABS production profit is - 892 yuan/ton (+57 yuan/ton). EPS operating rate is 51.81% (- 1.96%), PS operating rate is 54.50% (- 3.80%), and ABS operating rate is 70.10% (- 0.43%) [2] V. Pure Benzene Downstream Operating Rates and Production Profits - Caprolactam production profit is - 350 yuan/ton (+0), phenol - acetone production profit is - 902 yuan/ton (+25), aniline production profit is 789 yuan/ton (+178), and adipic acid production profit is - 1018 yuan/ton (+0). Caprolactam operating rate is 69.20% (- 5.37%), phenol operating rate is 76.00% (- 3.50%), aniline operating rate is 61.35% (- 14.59%), and adipic acid operating rate is 59.60% (+0.40%) [1] 4. Strategies - Unilateral: None - Basis and inter - period: Do reverse arbitrage on BZ2603 - BZ2605 when the price is high - Cross - variety: Short BZ2603 and long PX2605 [4]