diff --git a/addons/mrp/report/price.py b/addons/mrp/report/price.py
index 0c470d5b0aa..6758f7bed14 100644
--- a/addons/mrp/report/price.py
+++ b/addons/mrp/report/price.py
@@ -50,14 +50,15 @@ class report_custom(report_rml):
             sum_strd = 0
             prod = product_pool.browse(cr, uid, bom['product_id'])
 
-            prod_name = to_xml(tools.ustr(bom['name']))
+            prod_name = to_xml(bom['name'])
             prod_qtty = factor * bom['product_qty']
             product_uom = product_uom_pool.browse(cr, uid, bom['product_uom'], context=context)
+            uom_id = to_xml(product_uom.name)
             main_sp_price, main_sp_name , main_strd_price = '','',''
             sellers, sellers_price = '',''
 
             if prod.seller_id:
-                main_sp_name = "<b>%s</b>\r\n" %(prod.seller_id.name)
+                main_sp_name = "<b>%s</b>\r\n" %to_xml(prod.seller_id.name)
                 pricelist =  prod.seller_id.property_product_pricelist_purchase
                 price = pricelist_pool.price_get(cr,uid,[pricelist.id],
                      prod.id, number*prod_qtty or 1.0, prod.seller_id.id, {
@@ -70,7 +71,7 @@ class report_custom(report_rml):
             main_strd_price = str(std_price) + '\r\n'
             sum_strd = prod_qtty*std_price
             for seller_id in prod.seller_ids:
-                sellers +=  '- <i>'+ seller_id.name.name +'</i>\r\n'
+                sellers +=  '- <i>'+ to_xml(seller_id.name.name) +'</i>\r\n'
                 pricelist = seller_id.name.property_product_pricelist_purchase
                 price = pricelist_pool.price_get(cr,uid,[pricelist.id],
                      prod.id, number*prod_qtty or 1.0, seller_id.name.id, {
@@ -78,9 +79,9 @@ class report_custom(report_rml):
                         'date': time.strftime('%Y-%m-%d'),
                         })[pricelist.id]
                 sellers_price += """<i>"""+rml_obj.formatLang(price) +' '+ company_currency.symbol +"""</i>\r\n"""
-            xml += """<col para='yes'> """+ to_xml(tools.ustr(prod_name)) +""" </col>
-                    <col para='yes'> """+ to_xml(tools.ustr(main_sp_name)) + to_xml(tools.ustr(sellers)) + """ </col>
-                    <col f='yes'>"""+ rml_obj.formatLang(prod_qtty) +' '+ to_xml(tools.ustr(product_uom.name)).replace('&', '&amp;') +"""</col>
+            xml += """<col para='yes'> """+ to_xml(prod_name) +""" </col>
+                    <col para='yes'> """+ to_xml(main_sp_name) + to_xml(sellers) + """ </col>
+                    <col f='yes'>"""+ rml_obj.formatLang(prod_qtty) +' '+ to_xml(uom_id) +"""</col>
                     <col f='yes'>"""+ rml_obj.formatLang(float(main_strd_price)) +' '+ company_currency.symbol +"""</col>
                     <col f='yes'>""" + main_sp_price + sellers_price + """</col>'"""
 
@@ -89,11 +90,12 @@ class report_custom(report_rml):
 
         def process_workcenter(wrk):
             workcenter = workcenter_pool.browse(cr, uid, wrk['workcenter_id'])
+            workcenter_name = to_xml(workcenter.name)
             cost_cycle = wrk['cycle']*workcenter.costs_cycle
             cost_hour = wrk['hour']*workcenter.costs_hour
             total = cost_cycle + cost_hour
             xml = '<row>'
-            xml += "<col para='yes'>" + to_xml(tools.ustr(workcenter.name)).replace('&', '&amp;') + '</col>'
+            xml += "<col para='yes'>" + to_xml(workcenter_name) + '</col>'
             xml += "<col/>"
             xml += """<col f='yes'>"""+rml_obj.formatLang(cost_cycle)+' '+ company_currency.symbol + """</col>"""
             xml += """<col f='yes'>"""+rml_obj.formatLang(cost_hour)+' '+ company_currency.symbol + """</col>"""
@@ -142,9 +144,11 @@ class report_custom(report_rml):
         purchase_price_digits = rml_obj.get_digits(dp='Purchase Price')
 
         for product in product_pool.browse(cr, uid, ids, context=context):
+            product_name = to_xml(product.name)
+            uom_id = to_xml(product.uom_id.name)
             bom_id = bom_pool._bom_find(cr, uid, product.id, product.uom_id.id)
             title = "<title>%s</title>" %(_("Cost Structure"))
-            title += "<title>%s</title>" % (to_xml(tools.ustr(product.name))).replace('&', '&amp;')
+            title += "<title>%s</title>" % (to_xml(product_name))
             xml += "<lines style='header'>" + title + prod_header + "</lines>"
             if not bom_id:
                 total_strd = number * product.standard_price
@@ -157,7 +161,7 @@ class report_custom(report_rml):
                     <col para='yes'>-</col>
                     </row></lines>"""
                 xml += """<lines style='total'> <row>
-                    <col> """ + _('Total Cost of %s %s') % (str(number), to_xml(tools.ustr(product.uom_id.name)).replace('&', '&amp;')) + """: </col>
+                    <col> """ + _('Total Cost of %s %s') % (str(number), to_xml(uom_id)) + """: </col>
                     <col/>
                     <col f='yes'/>
                     <col t='yes'>"""+ rml_obj.formatLang(total_strd, digits=purchase_price_digits) +' '+ company_currency.symbol + """</col>
@@ -184,7 +188,7 @@ class report_custom(report_rml):
 
                 xml += "<lines style='lines'>" + xml_tmp + '</lines>'
                 xml += """<lines style='sub_total'> <row>
-                    <col> """ + _('Components Cost of %s %s') % (str(number), to_xml(tools.ustr(product.uom_id.name)).replace('&', '&amp;')) + """: </col>
+                    <col> """ + _('Components Cost of %s %s') % (str(number), to_xml(uom_id)) + """: </col>
                     <col/>
                     <col t='yes'/>
                     <col t='yes'>"""+ rml_obj.formatLang(total_strd, digits=purchase_price_digits) +' '+ company_currency.symbol + """</col>
@@ -201,14 +205,14 @@ class report_custom(report_rml):
                     xml += workcenter_header
                     xml += "<lines style='lines'>" + xml_tmp + '</lines>'
                     xml += """<lines style='sub_total'> <row>
-                    <col> """ + _('Work Cost of %s %s') % (str(number), to_xml(tools.ustr(product.uom_id.name)).replace('&', '&amp;')) +""": </col>
+                    <col> """ + _('Work Cost of %s %s') % (str(number), to_xml(uom_id)) +""": </col>
                     <col/>
                     <col/>
                     <col/>
                     <col t='yes'>"""+ rml_obj.formatLang(total2, digits=purchase_price_digits) +' '+ company_currency.symbol +"""</col>
                     </row></lines>'"""
                 xml += """<lines style='total'> <row>
-                    <col> """ + _('Total Cost of %s %s') % (str(number), to_xml(tools.ustr(product.uom_id.name)).replace('&', '&amp;')) + """: </col>
+                    <col> """ + _('Total Cost of %s %s') % (str(number), to_xml(uom_id)) + """: </col>
                     <col/>
                     <col t='yes'/>
                     <col t='yes'>"""+ rml_obj.formatLang(total_strd+total2, digits=purchase_price_digits) +' '+ company_currency.symbol + """</col>