Categoría anterior : 2834 - Nitritos; nitratos.
| Nombre de la compañía * | Ciudad / Ciudad-Estado | País |
|---|---|---|
| M************************ | Philippines | Filipinas |
| О************ | Russia | Federación Rusa |
| C**************************** | Morocco | Marruecos |
| P*************** | Indonesia | Indonesia |
| E*************** | Egypt | Egipto |
| R*********** | Australia | Australia |
| P****** | Morocco | Marruecos |
| W*************** | Australia | Australia |
| C****************** | Egypt | Egipto |
| R******************* | Gh - Ghana | Ghana |
| О************************ | Russia | Federación Rusa |
| И*************************************** | Kazakhstan | Kazajstán |
| M**************** | Peru | Perú |
| T****************************** | Thailand | Tailandia |
| S********************** | Tunisia | Túnez |
| M********************************* | United Arab Emirates | Emiratos Árabes Unidos |
| L*********** | Armenia | Armenia |
| P*************************** | Dominican Republic | República Dominicana |
| S*********************** | Sivakasi | India |
| Т**************** | Kazakhstan | Kazajstán |
| Т************************************* | Kazakhstan | Kazajstán |
| M**************** | . | Letonia |
| D********* | Morocco | Marruecos |
| P******************** | Panama | Panamá |
| O******************* | Puerto Rico | Puerto Rico |
| L*************************** | Russian Federation | Federación Rusa |
| Х******************* | Turkmenistan | turkmenistán |
| C*********************** | Mchenry - Illinois | Estados Unidos de América |
| A*************************** | Idaho | Estados Unidos de América |
| K***************** | United States | Estados Unidos de América |