18, GT— seaport.
GTSTC is the UN/LOCODE for Puerto Santo Tomás de Castilla, 18, GT — a seaport. The code is used on Shipping Bills, Bills of Lading, GST e-invoices and other international trade documents.
Yes — Puerto Santo Tomás de Castilla (GTSTC) is a UN/LOCODE recognised destination. Indian exporters list GTSTC as the port of discharge / final destination on Shipping Bills, Bills of Lading and GST e-invoices when shipping to GT.
Puerto Santo Tomás de Castilla is located at approximately 15.7000°N, -88.6167°E in 18.
Use GTSTC on Shipping Bills filed at ICEGATE, GST e-invoices when goods are dispatched to or from this port, Bill of Lading port-of-loading / port-of-discharge fields, and on any export documentation that references a UN/LOCODE.
© 2026 Manudocs Private Limited · All rights reserved.
Aligned with Maritime India Vision 2030 · Built in India