1. What is the supplier portal and what is it for?

This is a user-friendly website that offers suppliers of PRAXAIR and its subsidiaries easy and comprehensive payment tracking. This tool allows them to enter their invoices and obtain the necessary authorizations to schedule their payments in a timely manner. They can also access online information on the status of this process, as well as other consultation tools .

2. How can I access the supplier portal?

From the Praxair homepage or via the following link: portalproveedores.praxair.com.mx

3. What information do I need to enter my invoice?

You must have:

• XML and PDF files of the Digital Tax Receipt via the Internet (CFDI)
• Purchase Order: The purchase order number
• Warehouse Entry (Receipt): The number of the warehouse entry or clearance
• Contract: Contract number and confirm that it is valid
• Minor Purchase: The user who requested your minor purchase service

4. Do I need to know the cost center or charge account?

You don't need to know it, your user will be in charge of entering it when the tool requires it.

5. Who can give me information?

You can call 01-800-8394072 for any questions you may have when entering your invoice or you can call your account executive directly if you prefer.

6. Should I print and submit my invoices?

No, CFDI are only received through the supplier portal.

7. Is it still necessary to request my user's approval?

If it is necessary to obtain the approval of your user, only now it will be through the supplier portal electronically.

8. How do I know if my invoice has been authorized?

The portal will notify you via the email you provided when your invoice has been approved and you can check the status within the portal.

9. What should I do if my invoice was rejected?

Once you receive the notice and reason for the rejection, you must contact your user to resolve it and start the process again.

10. How do I ensure my bill will be scheduled for payment?

Once you have been granted the corresponding authorizations and your invoice has been entered for review, the accounts payable area will schedule your invoice for payment, notifying you via email of the details of this scheduling.

11. When will my payment terms start?

If your invoice is electronic, the credit terms will count from the date of the last authorization required by the supplier portal.

12. Will there be any changes to the payment methods?

Payment methods will not be modified; payments will continue to be made via electronic transfer or Nafinsa. Praxair Mexico does not issue checks for payment to suppliers.

13. What information about my payments can I obtain on the portal?

Approval process status, scheduling dates, payment details, payment history, update profile.

14. How can I join Nafinsa?

Contact NAFINSA executive Edith Fuerte at the email: efuerte@nafin.gob.mx

15. What should I do to update my general and/or banking information?

Within the portal, enter your profile where you can update your contact information and bank details. You must notify your buyer so that they can request the change.