Regarding Customs Duties on Items Shipped to the US

US President Donald Trump issued an executive order abolishing
the de minimis rule for imports of small-value items.
As a result, when shipping from Japan to the US, a 15% tax will be
levied on the invoice amount. However, since we set the declared value
of our shipments to the US at a maximum of $100 per case, customers
are expected to pay a maximum of $15 in customs duties.

Example:
Declared value of 6 bottles = $45 x 15% = $7 in customs duties
Declared value of 12 bottles = $90 x 15% = $14 in customs duties

For orders of 12 or more bottles, we will ship them in multiple boxes, spaced one day apart.