Step 1. Go to the portal

https://supplier.naftogaz.com/web/ in the “Procurement Integrity” section

Step 2. Register

Create an account or log in to an existing one.

Step 3. Fill in the form

Enter all required data in the appropriate fields.

Step 4. Attach your request

Upload a document (preferably on company letterhead) specifying:

• the name of the contracting authority
• what is being challenged (decision / action / inaction)
• description of the issue
• signature and stamp (if available)

Step 5. Review your data

Make sure all fields are filled in correctly before submission.

📩 What happens next?

• You will receive an email confirmation that your request has been accepted
• The response will be provided within 10 days

👤 Who can submit a request?

• procurement participant
• potential participant
• contractor