To participate in an auction, just follow these steps:

1. Enter the system with a previously assigned bidder password.
2. Look up the specific characteristics of the bond issue to be placed.
3. Enter the Trading Screen (Operación) and select the auction in which you wish to participate.
4. Input your bid:
              - Amount or percentage of the issue.
              - Rate, add-on rate, or price
              - Client, if the trade is for a third party.
5. Look up the Preliminary Order Book when the term of the Auction has expired.
6. Look up the results in the Definitive Order Book once the titles have been assigned by the issuer/underwriter.