Nan, Pls change to use 40 standard.
Any empty room in the container can cause any issue to KH & DSA.
Goods can be moved during transit due to so much space.
Tell them that ....you are trying to protect KH as well.
If KH insists to use 40HQ, if there are any damaged products upon arrival in US, that means...KH will have to take full responsibilty by producing the replacement free of charge.
if those damaged parts are urgent , we might need them to airship the replacement.
Tell them that....you can see only 1 benefit for KH if they don't change which would help them saving time in VN. But also you can see several expenses by KH if something happened during transit. We don't know for sure and so often that they are uncontrollable.
Recently, we have faced the delay on 2 KH containers due to the plant which is uncontrollable.
This container can be controlled and You do not want KH to produce the replacement and airship the replacement.