This is Eric from HK Shipping Dept
Sorry to jump it.
In fact, you could refer to "packing details" by excel file shared by Yan Lin.
However, that's not the export document from HK to JP.
HK Shipping dept will provide export invoice and packing list when the containers departing from our China factory.
My team member Amanda and Bertha will be the PIC of this document preparation.
Since SAE is the shipper in this case, you have to tell us whether it is undergone FCL or LCL?
And, it is required to send to HK ocean port or Nippon warehouse?
Those information is important for us to issue booking to Nippon.