What is the richest company in Brazil?

Could you possibly enlighten me on the identity of the wealthiest company operating within the boundaries of Brazil? I'm particularly curious about the organization that holds the most financial resources and stands as a beacon of economic prosperity in the South American nation. It would be intriguing to know if it's a longstanding conglomerate or a recent upstart that has quickly risen to the top. Additionally, I'm interested in understanding what industry this company specializes in and how it has managed to amass such vast riches. Perhaps you could provide some insights into its business model, key strategies, or any notable achievements that have contributed to its success. I'm eager to hear your thoughts on this intriguing topic.