In February 2007, SMESI effectuated several works in the framework of the programmed revision of the "A" sulfuric line at MAROC PHOSPOHORE «I» to Safi. Between other :

• Reconstruction the corroded elements of the dring tower
• Revision of the bellows of the yelling one oven to sulfur
• Reconstruction of the gone one out sheaths economisor
• Maintenance of the circuits some melted
• Substitution of the DN600 acide's heaths
• Reconditioning of the acid piping
• Maintenance of the cooling acid circuits
• Maintenance of the security soupapes on the vapor lines
• . . .