By Jeffrey T. Lewis SÃO PAULO — Petrobras, the state-controlled oil company, announced on Monday evening that it has formally requested access to Braskem's due diligence information. This request comes as Braskem's controlling shareholder, Novonor, engages in talks to sell its stake in the chemical company. Petrobras clarified that it has not made any decisions regarding the … [Read more...] about Petrobras Requests Access to Braskem’s Information Amidst Sale Talks