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Invoice receipt requirements

It is important that invoices are forwarded to the company as follows:

Format and address The vendor is to send the invoice in English in:
PDF format to:
Only one invoice (including documentation) per PDF file.
Several invoices (PDF files) in the same email are OK.
The email is not to contain messages nor non-invoice related documents as these will be unnoticed in our system.
​Mandatory information on invoice

If a purchase order has been issued:
The purchase order number must be stated on the invoice.
If a purchase order has not been issued:
The Topsoe requisitioner must inform the vendor to state the following on the invoice:

- Cost center no., or​ + initials of the requisitioner​
​- Internal order no., or
​- WBS no., or
- Network and activity no.

Invoices without valid references will be returned to the vendor with no warning

​Alternative to email address If the vendor is unable to send the invoice as a PDF file it should be sent by ordinary mail to:

Haldor Topsøe A/S
Haldor Topsøes Allé 1​
DK-2800 Kgs. Lyngby

Attention:"Accounts Payable" 
Other communication All other communication concerning the accounts payable, such as messages, statements, reminders, etc. to be sent to
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