装置接连意外，盘面大幅上涨

Report Industry Investment Rating - No clear industry investment rating is provided in the given reports. Core Viewpoints - EG's main contract closed at 4506 yuan/ton, up 157 yuan/ton (+3.61%) from the previous trading day; the spot price in the East China market was 4645 yuan/ton, up 179 yuan/ton (+4.01%); the spot basis in East China was 160 yuan/ton, up 36 yuan/ton [1]. - The ethylene - based EG production profit was -32 dollars/ton, up 9 dollars/ton; the coal - based syngas EG production profit was 108 yuan/ton, up 75 yuan/ton [1]. - According to CCF, MEG inventory in East China's main ports was 75.1 tons, down 3.9 tons; according to Longzhong, it was 69.2 tons, up 0.4 tons. Last week, the actual arrival at the port was 5.9 tons, and this week's planned arrival is 5.5 tons, so the inventory may continue to decline [1]. - The overall fundamental supply - demand logic is that the Sino - US negotiation has made positive progress, improving the macro sentiment. On the supply side, the recent sharp increase in warehouse receipts has tightened the spot liquidity of ethylene glycol. On the demand side, the near - end polyester load has remained high, and the average monthly load in May may rise instead of falling, with strong demand support. The US textile and clothing orders are expected to partially recover [2]. - For the strategy, it is short - term cautiously bullish on the single - side, suggesting a long - spread for the inter - period, and no strategy for the inter - variety [3]. Summary by Relevant Catalogs Price and Basis - The closing price of EG's main contract and the spot price in the East China market both increased, and the spot basis in East China also strengthened [1]. Production Profit and Operating Rate - The production profit of ethylene - based EG and coal - based syngas EG both improved [1]. International Spread - No detailed information about international spread is provided other than the mention of the graph "Ethylene glycol international spread: US FOB - China CFR" [5][19]. Downstream Sales and Operating Rate - The near - end polyester load has remained high, and the average monthly load in May may rise instead of falling, with strong demand support. The US textile and clothing orders are expected to partially recover [2]. Inventory Data - The inventory in East China's main ports decreased last week due to low arrival volume, and this week's planned arrival is also low, so the inventory may continue to decline [1].