Carlos Fadigas, chief executive of Braskem America, the Philadelphia business formerly known as Sunoco Chemicals, has been promoted to chief executive of Braskem S.A., the parent company in Brazil.

Fadigas, 40, will replace Bernardo Gradin as head of Braskem, which produces 33 billion pounds of thermoplastic resins annually at 31 plants in Brazil and the United States.

Braskem acquired Sunoco Chemical's polypropylene business for $350 million this year. It operates plants in Marcus Hook, West Virginia and Texas and has a research facility in Pittsburgh.    -Andrew Maykuth