江苏港口库存快速回升，关注后续MTO检修计划

1. Report's Investment Rating for the Industry - Unilateral: Neutral [4] - For the spread between MA2605 and MA2609, go long when the spread is low [4] - For the spread between LL2605 and 3*MA2605, go short when the spread is high [4] 2. Core Viewpoints - The inventory at Jiangsu ports has rapidly increased. On the one hand, the previously delayed port discharges have been gradually realized. On the other hand, the demand for inland提货 from ports has decreased after the inland market weakened. After the winter maintenance of Iranian plants was concentratedly realized, a 1.65 million - ton/year Iranian plant restarted at the beginning of the week, and the plant situation is fluctuating. Attention should be paid to the duration of the winter maintenance of Iranian plants. Although the operating rate in Iran is at a low level, the actual decline in shipping volume due to plant maintenance still needs to be further realized. In terms of MTO, Ningbo Fude's MTO is under maintenance, and in January, further possible maintenance of Zhejiang's MTO plants should be monitored [2] - The coal - based methanol production has high operating pressure, and the southwest gas - based methanol plants are undergoing seasonal winter maintenance. Among traditional downstream industries, the acetic acid operating rate has rebounded from the bottom, the MTBE operating rate is still acceptable, and the formaldehyde operating rate has slightly declined [3] 3. Summary by Directory 3.1 Methanol Basis and Inter - period Structure - The report includes figures on methanol basis in different regions (such as Taicang, Lunan, Inner Mongolia North Line, etc.) against the main futures contract, and the price spreads between different methanol futures contracts (e.g., methanol 01 - methanol 05, methanol 05 - methanol 09, etc.) [6][7][11][13] 3.2 Methanol Production Profit, MTO Profit, and Import Profit - Figures show the production profit of Inner Mongolia coal - based methanol, the MTO profit in East China (PP&EG type), and import price spreads (e.g., Taicang methanol - CFR China, CFR Southeast Asia - CFR China, etc.) [6][24][28] 3.3 Methanol Operating Rate and Inventory - Information on methanol port total inventory, MTO/P operating rate (including integrated plants), inland factory sample inventory, and China's methanol operating rate (including integrated plants) are presented in figures [6][31][37] 3.4 Regional Price Spreads - Figures show price spreads between different regions, such as Lubei - Northwest - 280, East China - Inner Mongolia - 550, Taicang - Lunan - 250, etc. [6][34][35] 3.5 Traditional Downstream Profits - The report provides figures on the production gross margins of traditional downstream products, including Shandong formaldehyde, Jiangsu acetic acid, Shandong MTBE isomerization etherification, and Henan dimethyl ether [6][43][53]