On 202 1, Zhengshang Institute adjusted the premium of cotton (2 1825, 70.00, 0.32%) contract to 0.32%. According to seven indexes, such as color grade, length, micronaire value and foreign fiber, the cotton produced in 20 18/20 19 was adjusted and implemented.

According to the notice, when the warehouse receipt is cancelled, during the reconsideration period, if the color grade of cotton exceeds the scope of the above-mentioned substitutes due to natural variation, and at the same time exceeds the allowable natural variation range stipulated in the Administrative Measures for Standard Warehouse Receipts and Transit Warehouse Receipts of Zhengzhou Commodity Exchange, the premium will be implemented with reference to the Quality Price Difference Table of Sawtooth Processing Fine Cotton in June 20 17+00 issued by China Cotton Association.