Frequent questions

Frequent questions

Welcome to our Frequently Asked Questions (FAQ) section! Here, you will find answers to the most common questions our suppliers ask us.



How do I become a supplier?

Unipar has a supplier management platform from G-Certifica. Please, click here to be redirected and begin the registration process.

After approval, does the registration have a validity period?

The approval validity period, in the Supplier Management platform, is 2 years.

Ariba has invited me to sign up, what does this mean?

It means that Unipar has invited your company to participate in a competitive bidding process through the SAP Ariba platform. Click on the link that was sent to you by email and register in the SAP Ariba Business Network portal.

What does a supplier need to access the Ariba Portal?

Click here to register in the SAP Ariba Portal. Or when the purchaser responsible lists your company in a bidding process on the portal, you will automatically receive an email with the link.

How do I update the users accessing the platform?

Follow this link –Update Responsive Users in the Ariba Portal

Which is the suitable service channel to change my registration and/or bank details?

To update your data, you must send an email to your contact at Unipar, who will forward it to the suitable area. Important: to update the bank details, send the supporting document, which can be a copy of the check or bank statement containing the company’s CNPJ (National Registry of Legal Entities).

What should I know about deliveries and pick-ups at Unipar plants?

Personal protective equipment (PPE) required for the driver:

Unloading in the warehouse – long-sleeved pants and shirt, safety shoes with toe cap, cowhide glove and safety goggles. 

Unloading in the plant – long-sleeved pants and shirt, safety shoes with toe cap, cowhide glove, safety glasses, splash goggles and helmet.


Warehouse – Office hours

Santo André: From 8.00 to 11.45 hs. and from 13.00 to 16.30 hs.

Cubatão: From 07:30 to 16:00 hs. and from 18:00 to 03:00 hs.

Raw material


The product must be accompanied by the safety data sheet. Please refer to the safety data sheets in the “Transport” section.


Santo André

The vehicle must be SIEDER or LOW GRADE. In case of sending a BAU TYPE vehicle, you must bring your own hand pallet truck.

Raw material reception hours: from 8:00 a.m. to 2:00 p.m.



The vehicle must be SIEDER or LOW GRADE. In case of sending a BAU TYPE vehicle, you must bring your own hand pallet truck.

Raw material reception hours: 24 hs.

How can I check the payment status of my invoice?

Access the platform SAP Business Network and select the Scheduled Payments option. For other questions about the composition and payment forecast, amounts deducted, taxes withheld, proof of payment and accounts for refunding amounts to Unipar, please contact us via email at Invoicing Unipar Indupa do Brasil S.A. Invoicing Unipar Carbocloro S.A.

What is the ISS (Service Tax) retention procedure in Cubatão and Santo André?

Santo André: payment of ISS to SANTO ANDRÉ and retention by Unipar Indupa will be made if the services rendered are in accordance with art. 3 of LC no. 116 of 31 July 2003, art. 6 of Santo André Municipal Law no. 8.581 of 15 December 2003 (the items listed in the Municipal Law are the same as those listed in the LC), since by virtue of Santo André Municipal Decree no. 15,095 of 20 July 2004, Unipar Indupa became responsible for the withholding and collection of ISSQN, regardless of the type of service, when the service provider is domiciled in the city of Santo André.


Cubatão: collection of ISS for CUBATÃO in accordance with the Municipal Law 1.383/83, article 42-A of the Cubatão City Hall. The withholding of said tax will be made at the place where the service is rendered, that is, the services rendered at the facilities of UNIPAR CARBOCLORO, in Cubatão / SP, will be subject to withholding of the tax on services, corresponding to the rate in effect on such date.

How do I send the NFe or CTE XML file to the finance department?




Procedure to fill in the XML:

In the XML file of the Electronic Invoice (NF-e)##, the Purchase Order (PO) number must be reported in one of the following fields:

<xPed>: numeric and 10-character field

<infAdd>: text field

<infCpl>: text field

<infAdProd>: text field

The Purchase Order (PO) Item number to which the Invoice refers, must be filled out in the following XML field:

<nItemPed>: Format example 10 for item 1, 20 for item 2, …


How can I schedule visits to present my company?

Contact should be directly with the buyer.

I would like to send my portfolio to the Purchasing area, what should I do?

 Send an email to 

I was not successful in the supplier registration and approval process, what should I do?

Send an Email to requesting information.

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