Brazil has made strides in its anti-bribery enforcement efforts, but a working group at the Organization for Economic Cooperation and Development (OECD) is concerned the country doesn’t have the controls in place to sustain its progress.

The OECD working group released a report this month reviewing Brazil’s anti-bribery efforts and what challenges and positive achievements the country has seen. The OECD has been working with Brazilian officials for nearly a decade since its last review, when the country agreed to refine its legal and institutional framework for imposing corporate liability, among other changes.

Those corporate liability actions have seen Brazil use leniency agreements as part of resolutions, like it did with mixed results in the Odebrecht case, and increase cooperation with other international agencies. Brazilian authorities have played a part in recent resolutions with Glencore, Honeywell, and Gol regarding violations of the U.S. Foreign Corrupt Practices Act.