RE:my take on things In 2012, B&A Mineracao SA, a venture of a company controlled by Roger Agnelli and Banco BTG Pactual SA, bought 13.6 million MBAC shares at C$2.73 each. B&A Mineracao S.A. became a shareholder with more than 11.5% of MBAC.
https://www.bloomberg.com/news/articles/2012-09-18/mbac-rally-fades-after-surge-on-agnelli-stake
In 2013, B&A Mineracao SA took over full ownership of Rio Verde Minerals and the full development of B&A's new business structure will likely be concluded only in the next two to three years, he said. "We are not in a hurry."
https://www.4-traders.com/VALE-SA-6492836/news/Brazil-s-B-A-Set-to-Announce-New-Acquisitions-in-Coming-Months-15989537/