Introduction: Diphenylmethane diisocyanate, abbreviated as MDI. According to the degree of polymerization of molecules, MDI can be divided into three levels: polymerization level, mixed level (dimer and trimer mixtures), and pure monomer level. MDI pure monomer (also known as pure MDI) is mainly used for synthesizing leather paste, shoe sole stock solution, and spandex; Polymerized MDI is mainly used in construction, diverse industrial molding, and refrigeration. Polyurethane rigid foam, which uses polymerized MDI as the main raw material, is currently recognized globally as a high-performance energy-saving building material. At present, commercially available products mainly consist of pure MDI and aggregated MDI, with aggregated MDI accounting for approximately 80% of the total market demand. The development of MDI industry in the world has a history of more than 50 years, but the manufacturing threshold is very high. Only a few enterprises such as Bayer (now Covestro), BASF, Huntsman, and Wanhua Chemical Group have mastered its production technology globally, and the industry concentration is very high.
Firstly, let’s review the trend of the aggregated MDI market in 2023. The domestic aggregated MDI market showed significant fluctuations in 2023, with an average price of 15240 yuan/ton at the beginning of the year and 15766 yuan/ton at the end of the year, representing a year-on-year increase of 3.46%. From the trend chart of aggregated MDI prices, it can be seen that the highest point of aggregated MDI prices in 2023 occurred in early August, with a highest price of 17433 yuan/ton. The lowest point of aggregated MDI prices occurred in mid January, with a lowest price of 14960 yuan/ton and a maximum amplitude of 16.53%.
The trend of the aggregated MDI market within the year has broken the traditional “gold three silver four” and “gold nine silver ten” patterns, resulting in disorderly market fluctuations and reduced operability for traders.
In the first quarter, the market rose first and then rebounded. Before and after the Spring Festival holiday, market operators, driven by expectations of the recovery of domestic economy and downstream demand, combined with the maintenance of supply side facilities in Ningbo and Chongqing in February, controlled the supply volume of the market, and the market situation fluctuated upwards. However, the recovery of downstream demand did not meet expectations, and market prices rebounded after mid March. In the second quarter, the market situation was weak and consolidated from April to May. In June, multiple units in Shanghai underwent centralized maintenance, and the market was once again supported to rise. In the first half of 2023, the good performance of exports was one of the main supports for the market’s reversal of trend and upward trend.
August to October is the traditional peak season for the insulation industry of exterior wall pipelines in North China and Northeast China. In August, production enterprises control the quantity of shipments, but the market supply is insufficient. Traders’ quotations have risen, leading to strong follow-up. In September, the overall follow-up ability of the downstream market was weak, and the buying sentiment was relatively average. Traders gradually lowered their prices to adapt to the market. In October, some companies guided price increases, boosting market confidence among traders and slowing down the market’s upward trend. In the fourth quarter, multiple sets of MDI devices at home and abroad entered maintenance status, resulting in a significant reduction in overall supply. The spot filling of the domestic aggregated MDI market is still relatively limited, and the overall performance of the downstream formaldehyde free board, household appliances, and automotive industries is still good. The domestic aggregated MDI prices are rebounding.
On the supply side, the global economy still faces challenges in 2024, and the domestic economy continues to recover. After experiencing a brief pulse of consumption rebound brought about by the economic restart in 2023, the economic growth in 2024 is closer to the “new normal”. In 2024, China’s MDI production capacity is expected to continue to grow, and the proportion of China’s production capacity in the global production capacity will continue to increase. The main MDI production enterprise in China, Wanhua Chemical, has a MDI production capacity of 3.4 million tons, accounting for 30% of the global total production capacity. As of now, Wanhua Chemical (Ningbo) Co., Ltd.’s first phase of the 400000 ton/year MDI plant will begin maintenance on November 15th, and the second phase of the 800000 ton/year plant will be shut down for maintenance on December 3rd. The two sets of equipment will be maintained for about 50 days each. Chongqing BASF will conduct maintenance on December 25th, lasting about a month. Chongqing BASF’s 400000 ton/year plant is expected to undergo maintenance on December 25th, lasting about a month. The maintenance of supply side devices and the manufacturer’s control of market volume delivery provide favorable support for the aggregation of MDI.
In terms of imports and exports, China’s aggregated MDI market exports remain optimistic in 2023. According to customs data, the cumulative export volume from January to November 2023 was 990100 tons, an increase of 112200 tons compared to the same period last year, with a growth rate of 12.78%. At present, aggregate MDI is in the growth stage of net export volume. According to the statistics of production and sales countries, the top five exporters are the United States, the Netherlands, Russia, Belgium and Türkiye. The export volume is calculated by trade mode, with general trade, import processing trade, and logistics goods in customs special supervision areas ranking among the top three trade modes. According to registered place names, the top five provinces in terms of export volume are Shandong Province, Zhejiang Province, Shanghai City, Guangdong Province, and Fujian Province. In 2024, the domestic and foreign economies are gradually recovering, which is expected to further drive export growth and drive the domestic aggregated MDI market to recover and improve.
On the demand side, due to the abundant profits in the aggregated MDI industry, the impact of raw materials on the MDI price difference trend is not significant, mainly because the demand side has a decisive impact on the MDI spot price. The downstream demand for aggregated MDI is relatively concentrated, mainly for white goods; Secondly, there are fields related to construction such as pipelines and adhesives. Thanks to the recovery of the domestic home appliance market and the rebound in the growth rate of new house completion area, the demand for refrigerators, freezers, and panel industries downstream of MDI has continued to be good. Small and medium-sized refrigerator factories, external wall/pipeline insulation, automobiles, adhesives and other industries mainly rely on on-demand procurement, and the demand has maintained a stable growth trend. Some downstream sectors are significantly affected by seasonal consumption during the off peak season, and more attention still needs to be paid to traditional peak season policy guidelines such as “Golden Three Silver Four” and “Golden Nine Silver Ten”, as well as changes in demand.
Overall, there are favorable factors affecting the supply, demand, and import and export of domestic aggregated MDI in 2024. The domestic aggregated MDI market is expected to rise in the first half of 2024.