according to the monitoring data of business club, on october 1, the average price of domestic industrial grade propylene glycol market quotation was 9166 yuan/ton. on december 31, the domestic industrial grade propylene glycol market price reference was 9166 yuan/ton. the reference average market price of grade propylene glycol is 11,333 yuan/ton. compared with october 1, the average price increased by 2,167 yuan/ton, an increase of 23.64% in the fourth quarter. from october 1 to december 31, the maximum amplitude during the period was 40%.
