Hi Shirley,
If sorting is caused by our improper quality , we definitely will be responsible for it.
And for air freight, if PO cut-off date is based on our L/T, we can promise to ship them out on time, otherwise we will be responsible for air shipment charge.
As my statement below, we can reduce the L/T if EWTP can provide the materials preparation PO based on customer’s forecast. Also, our production capacity will be planned accordingly based on customer’s demand.