diff --git a/modules/purchase_trade/sale.py b/modules/purchase_trade/sale.py
index 8b3e35a..278f2c6 100755
--- a/modules/purchase_trade/sale.py
+++ b/modules/purchase_trade/sale.py
@@ -494,7 +494,13 @@ class Sale(metaclass=PoolMeta):
                         for d in line.derivatives:
                             line.unit_price = d.price_index.get_price(Date.today(),line.unit,line.currency,True)
                             Line.save([line])
-    
+
+class PriceComposition(ModelSQL,ModelView):
+    __name__ = 'price.composition'
+
+    component = fields.Char("Component")
+    price = fields.Numerci("Price")
+
 class SaleLine(metaclass=PoolMeta):
     __name__ = 'sale.line'
 
@@ -588,6 +594,7 @@ class SaleLine(metaclass=PoolMeta):
     )
 
     pricing_rule = fields.Text("Pricing description")
+    price_composition = fields.One2Many('price.composition',"Price composition")
 
     @property
     def report_fixing_rule(self):
diff --git a/modules/purchase_trade/view/sale_line_form.xml b/modules/purchase_trade/view/sale_line_form.xml
index 4f02e6d..d428f62 100755
--- a/modules/purchase_trade/view/sale_line_form.xml
+++ b/modules/purchase_trade/view/sale_line_form.xml
@@ -53,6 +53,9 @@ this repository contains the full copyright notices and license terms. -->
         <field name="certif"/>
     </xpath>
     <xpath expr="/form/notebook/page[@id='taxes']" position="before">
+        <page string="Price composition" col="4" id="pc">
+            <field name="price_composition"/>
+        </page>
         <page string="Lots" col="4" id="lots">
             <field name="lots" view_ids="lot.lot_view_tree_sequence"/>
         </page>