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Business With Us

Accounts Payable

Invoices must show the Purchase Order number. Invoices that do not have the correct Purchase Order number will be returned for correction and re-submission.

Incorrectly submitted invoices will result in a delay in payment.

The standard Monadelphous payment terms for approved invoices are 30 days from the end of the month in which the approved invoice is received, provided the invoice is presented to the correct address.

Invoices must be forwarded to:

Accounts Payable
Locked Bag 450
Victoria Park, WA 6979


Accounts Payable Queries

If you have any queries relating to payment of an invoice please contact Accounts Payable on or (08) 9316 6255.

Supplier Code of Conduct 

As a requirement of the terms and conditions, suppliers are required to comply with our Supplier Code of Conduct which sets out our minimum expectations of the conduct of our Suppliers in the areas of: Health and Safety, Environment, Labour and Human Rights, Business Integrity and Ethics. As one of our valued Suppliers, please ensure you review this Code and ensure that your operations meet our requirements.


For a full list of Monadelphous Group Limited subsidiaries, please click here