In response to your inquiry, we would like to reply you as below.
As I confirmed our engineer, he told we would agree any style which can be packed same as the current style. So, it means you could suggest us either plastic box or carton box.
And regarding 5 plastic boxes which you have shipped on last August, we would like to send it with KD parts to EXT and want you to pick from them.
Could you please check whether you could agree or not?