We are an importing company in south of China andacting as the sole supplier for some special chemicals to a big plant in China Southwest District.Now we are in urgent, but regular demands for MIBK of 99.5%min purity and Sodiun sulfate(Fe≤ 0.01% (100ppm)Price based on CIF GUANGZHOU/HUANGPU PORT or CIF FANGCHENG PORT would be very helpful.And please also include your delivery time and payment terms together with quotation.