Brazil's Petrobras Maintains Its Position as Braskem's Single Largest Shareholder

Brazilian state-controlled oil company Petrobras continues to hold the largest individual shareholder position in Braskem following the company's 2026 ownership transition. Petrobras retains 36.15% of Braskem's total share capital and 47.03% of its voting share capital, meaning it remains the company's largest single shareholder even after IG4 Capital's acquisition of Novonor's controlling position.

A New Ownership Structure

The change in control became effective on June 3, 2026, when Novonor's shares were transferred to Shine I, an investment fund associated with IG4 Capital. Petrobras chose not to exercise its preemptive and tag-along rights and instead entered into a new shareholders' agreement with IG4. The agreement established joint control of Braskem, with both parties required to reach consensus on key corporate decisions and receiving equal representation on the board and executive leadership.

Why the 47% Voting Stake Matters

Petrobras' 47.03% voting interest gives the state-controlled company significant influence over Braskem despite IG4 becoming the new controlling shareholder through its larger voting position. The arrangement effectively creates a two-party governance structure rather than leaving IG4 with unrestricted control. This makes Petrobras' continued involvement important for Braskem's strategic direction, particularly around investments, financing and the company's petrochemical operations.

Petrobras' Role Goes Beyond Ownership

Petrobras is also deeply connected to Braskem through its role as a major raw-material supplier. In August 2026, as Braskem faced severe financial pressure and moved toward an extrajudicial debt restructuring, Petrobras increased Braskem's available credit limit from R$350 million to R$2.35 billion to support purchases of raw materials. The move demonstrates that Petrobras' relationship with Braskem extends beyond its equity position.

A Critical Stake During Financial Restructuring

The importance of Petrobras' position has increased as Braskem faces approximately US$10.9 billion in debt and seeks to restructure its financial obligations. The company has entered an extrajudicial restructuring process while continuing operations, making support from its major shareholders increasingly relevant. Petrobras' ownership stake, supply relationship and financing role could all influence how Braskem navigates the restructuring.

The Intelligence Takeaway

Petrobras' continued 47.03% voting stake means the Brazilian state remains deeply embedded in Braskem's ownership structure even after Novonor's exit. IG4 may now lead the company's turnaround strategy, but Petrobras remains an essential strategic partner with substantial voting power and commercial ties. The effectiveness of this shared-control model will be especially important as Braskem works through its financial restructuring and the wider global petrochemical downturn.