To export goods from Singapore, the supporting documents required by Singapore Customs are commercial invoice, packing list and Bill of Lading (B/L) or Air WayBill (AWB). Please note that you are only required to produce these documents upon request.

For the exportation of controlled goods, the supporting documents required will vary depending on the individual Competent Authority's (CA) requirements. You are required to check directly with the respective CA for their documentation requirements.