diff --git a/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py b/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py
index a6163592..90f873e9 100644
--- a/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py
+++ b/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py
@@ -31,7 +31,7 @@ from api.v1.modules.a76.transportation.trailers.models import Trailer
 from api.v1.modules.a76.transportation.drivers.models import Driver
 
 # --- MODELO DE FRACCIONES ---
-from api.v1.modules.a76.general_catalogs.tariff_fractions.models import TariffFraction
+from api.v1.modules.a76.general_catalogs.fractions.tariff_fractions.models import TariffFraction
 
 # --- SCHEMAS ---
 from .schemas import (
diff --git a/backend/main.py b/backend/main.py
index 795e5c8a..3f405d59 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -163,9 +163,9 @@ from api.v1.modules.a76.general_catalogs.ports.models import Port
 from api.v1.modules.a76.general_catalogs.prevalidators.models import Prevalidator
 from api.v1.modules.a76.general_catalogs.seal.models import Seal
 from api.v1.modules.a76.general_catalogs.signatures.models import Signature
-from api.v1.modules.a76.general_catalogs.tariff_fractions.models import TariffFraction
+from api.v1.modules.a76.general_catalogs.fractions.tariff_fractions.models import TariffFraction
 from api.v1.modules.a76.general_catalogs.unit_conversions.models import UnitConversion
-from api.v1.modules.a76.general_catalogs.us_tariff_fractions.models import USTariffFraction
+from api.v1.modules.a76.general_catalogs.fractions.us_tariff_fractions.models import USTariffFraction
 
 # Registrar Listeners de Auditoría
 @app.on_event("startup")