br pAt least four people were injured, one criticallya, following an explosion at a Panimex factory in Santiago, Chile, on July 12.ppLocal reports saida initial investigations indicated the explosion originated in a boiler in an engine room. It was the third fire at the chemical factory in recent years, including one in 2013a and one in 2014a.ppThe Panimex Química company is involved in the production and commercialization of plasticizers, phthalic anhydride and fumaric acid, according to its LinkedIn pagea. The Panimax websitea was not accessible July 13.