Please find the below airfreight from TSN - BKK under FOB for your consideration kha.
Carrier: CA ex TSN to BKK
+100Kg - USD2.60/Kg (@chargeable weight)
+500Kg - USD2.45/Kg (@chargeable weight)
Included Fuel & Security surcharges
Daily, TSN-PEK-BKK, T/T: 3-5days
Plus, 6% VAT surcharge
And, 0.78% City surcharge
Local charge in Thailand
HAN = THB500/shipment
DOC = THB350/shipment
Remark: above rate is subject to 6% VAT charge & 0.78% City surcharge based on Invoice Value, with effective on Aug-01 as per the New Tax Policy of China Government.