Proquigel Química Ltda. is founded by Dr. Henri Slezynger in São Paulo-SP, Brazil.
Development of proprietary technology of suspension polymeriration and production of PMMA and SAN resins in a small facility in São Paulo-SP.
In 1973, polystyrene production began and operations were transferred to São Bernardo do Campo-SP
In 1979, operation were expanded to the state of Bahia, for the production of a broad portfolio of thermoplastic resins and chemical intermediary products.