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Seaports
| Seaport Name | Seaport Code | Country |
|---|---|---|
| Milner Bay | AUGTE | Australia |
| Mongla | BDCHL | Bangladesh |
| Madre De Deus | BRMDD | Brazil |
| Maceio | BRMCZ | Brazil |
| Manaus | BRMAO | Brazil |
| Moudi Terminal | NGMOT | Cameroon |
| Moudi Terminal | NGMOT | Cameroon |
| Montreal | CAMTR | Canada |
| Mont Louis | CAMOL | Canada |
| Matane | CAMAN | Canada |
| Maitland Harbour | CAMAT | Canada |
| Maitland (Port) | CAMAT | Canada |
| Moncton | CAMNT | Canada |
| Mamonal | COMAM | Colombia |
| Moroni | KMYVA | Comoros |
| Moanda Terminal | ZRMOA | Congo (Kinshasa) |
| Matadi | ZRMAT | Congo (Kinshasa) |
| Moin Bay | CRMOB | Costa Rica |
| Matanzas | CUQMA | Cuba |
| Mariel | CUMAR | Cuba |