Sogreah Gulf FZCO is a limited liability company registered in Dubai, United Arab Emirates. This letter certifies that Ahmed Mahmoud Ahmed Fawzy was employed by Sogreah Gulf FZCO from August 26, 2013 to March 27, 2015 as a Senior Instrumentation Engineer on a project to provide project management and supervision services for a sludge dewatering centrifuges project at a wastewater treatment plant located in Riyadh, Saudi Arabia. The letter states that Mr. Fawzy demonstrated good leadership skills and had a good working relationship with his superiors, and was courteous and thorough in performing his duties.