Report Industry Investment Rating - Not provided in the content Core Viewpoints - Last week, the futures price fluctuated greatly and the center moved up, mainly following the oil price. The basis fluctuated sharply, the 4 - 5 month spread was 132 (+5), and the number of warehouse receipts decreased by 1544 to 3108 lots. The cheapest deliverable was Shandong ether - post 5430 (+280). PDH spot profit strengthened significantly, port inventory ratio decreased by 5.5 pct to 35.05%, and the external supply of liquefied gas sample enterprises decreased by 1.8 to 54.4 tons. PDH operating rate decreased by 1.7 pct to 63.23. The subsequent core lies in when the Strait of Hormuz will resume passage, and short - term spot quotes mainly depend on international oil prices. There will probably be a shortage of goods in China in April, more serious in East and South China than in Shandong. The short - term futures price may still follow the oil price, and the month spread will run strongly [1] Summary by Relevant Catalogs Daily Quotes - On March 17, the PG2604 contract closed at 5849 (+10) at 3 pm, the 4 - 5 month spread was 113 (-27), and the number of warehouse receipts was 1800 (+0). The night session closed at 5848 (+21), and the 4 - 5 month spread was 83 (-30). Shandong civil gas was 5520 (+0), with a fair trading atmosphere. Shandong ether - post was 5450 (+30). Longkou Port propane was 7200 (+0), and Shandong propylene price was 8025 (+0). The East China market declined steadily, with the mainstream transaction price ranging from 5900 - 6280 yuan/ton, and the demand was average, with high - price refineries having difficulty in selling goods [1] Weekly Quotes - Last week, the futures price fluctuated greatly and the center moved up, mainly following the oil price. The basis was - 321 (+346), the 4 - 5 month spread was 132 (+5), and the number of warehouse receipts was 3108 (-1544). The cheapest deliverable was Shandong ether - post 5430 (+280). Shandong civil gas was 5550 (+610), and East China civil gas was 6159 (+1178). The FEI month spread was 84 US dollars (+27), the oil - gas price ratio declined oscillatingly. The internal and external PG - FEI c1 was 52.4 (-45). The CIF discount of South China CP propane was 402 (+30), and the FOB discounts of AFEI, US Gulf, and Middle East propane were 104.75 (+12.75), 200.6 (+41.7), and 0 (+0) respectively. The FEI - MOPJ spread was - 126 (-59). PDH spot profit strengthened significantly. The port inventory ratio was 35.05% (-5.5 pct), and the external supply of liquefied gas sample enterprises was 54.4 tons (-1.8). The PDH operating rate was 63.23 (-1.7 pct) [1]