1. About MDI:
MDI, whose scientific name is diphenylmethane diisocyanate, is the main intermediate for the synthesis of polyurethane and spandex.
The historical highest listing price of pure MDI was 31,700 yuan/ton in March 2018, and the lowest was in May 2020, with a price of 15,800 yuan/ton. ,
In June, it was raised by 700 yuan/ton, and then in August it was raised by 500 yuan/ton, an increase of 3.03%; in September it was raised by 1,000 yuan/ton, an increase of 5.88%; in October it was updated The price is further increased by 1,800 yuan/ton, an increase of 10.00%.
From the low of 15,800 yuan/ton in May to 19,800 yuan/ton in October, the price increased by 25.32%.
2. About spandex:
Spandex, scientific name is polyurethane fiber, English name is spandex, abbreviation is PU.
In 1937, the German Bayer Company successfully developed it; in 1959, the American DuPont Company began industrial production; in 1989, China’s first spandex production factory, the Yantai Spandex Factory, was put into operation. Now, China has become the world’s largest producer of spandex.
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