Apart from providing valid delivery addresses and contact information in English, shipment bounds for Taiwan , Indonesia and South Korea requires additional information for customs clearances. Taiwan: A copy of the National ID South Korea: Personal Customs Code Indonesia: NPWP number This information should be filled in on the checkout page or provided to us via email at info@avi-8.com. Be kindly advised that if this information is not provided, it will lead to the delay of your order due to customs clearance.