diff --git a/source/helper/util.py b/source/helper/util.py
index 5bcc45f..8551d03 100644
--- a/source/helper/util.py
+++ b/source/helper/util.py
@@ -239,14 +239,15 @@ class DictToCfdi():
         type_boveda = self._data['addenda'].get('type', '')
         type_client = self._data['addenda'].get('type_client', '')
         data = self._data['addenda'].get('boveda', False)
-        self._boveda(type_boveda, data)
+        lotes = self._data['addenda']['lotes']
+        self._boveda(type_boveda, data, lotes)
         if type_client:
             data = self._data['addenda'].get('cliente', False)
             partes = self._data['addenda'].get('partes', ())
             self._addenda_client(type_client, data, partes)
         return
 
-    def _boveda(self, type_boveda, data):
+    def _boveda(self, type_boveda, data, lotes):
         if not data:
             return
 
@@ -271,6 +272,16 @@ class DictToCfdi():
             for k, v in data.items():
                 node_name = f'{{{XMLNS}}}{k}'
                 ET.SubElement(node, node_name, v)
+            if lotes:
+                node_name = f'{{{XMLNS}}}Lotes'
+                node_lotes = ET.SubElement(node, node_name)
+                for lote in lotes:
+                    node_name = f'{{{XMLNS}}}Lote'
+                    node_lote = ET.SubElement(node_lotes, node_name)
+                    for k2, v2 in lote.items():
+                        node_name = f'{{{XMLNS}}}{k2}'
+                        sn = ET.SubElement(node_lote, node_name)
+                        sn.text = v2
         elif type_boveda == '02':
             for k, v in data.items():
                 node_name = f'{{{XMLNS}}}{k}'
@@ -328,6 +339,7 @@ class DataToDict():
         '05': '_conceptos',
         '06': '_impuestos',
         '10': '_leyendas',
+        '49': '_addenda_lotes',
         '50': '_boveda',
         '51': '_addenda',
         '52': '_addenda_partes',
@@ -338,6 +350,7 @@ class DataToDict():
         self._cfdi = {'conceptos': [], 'complementos': {}, 'addenda': {}}
         self._type_header = ''
         self._partes = []
+        self._lotes = []
         self._process_data()
 
     @property
@@ -358,6 +371,7 @@ class DataToDict():
                 getattr(self, header)(parts[2:])
 
         self._cfdi['addenda']['partes'] = self._partes
+        self._cfdi['addenda']['lotes'] = self._lotes
         return
 
     def _comprobante(self, data):
@@ -626,6 +640,18 @@ class DataToDict():
         self._cfdi['addenda']['cliente'] = data
         return
 
+    def _addenda_lotes(self, lote):
+        attr = {
+            'IVM_InvoiceID': '',
+            'POline': lote[0],
+            'NoIdentificacion': lote[1],
+            'Lote': lote[2],
+            'Cantidad': lote[3],
+            'Fecha': lote[4],
+        }
+        self._lotes.append(attr)
+        return
+
     def _addenda_partes(self, parte):
         if self._type_header == '2':
             attr = {'posicion': parte[0],