Given the diversification of the complexity of the construction sector, the CSE has decided to open a vast field of quality, in response primarily to legal and regulatory requirements applicable to its business and especially to satisfy its clients. CSE has obtained in August 2005, successfully completed the ISO 9001:2000 certification issued by SGS ICS France. It has branches in Sierra Leone, Niger, Guinee Conakry, Mali and Burkina Faso.