Invitation Letter

-118110 9686290 TALLINN UNIVERSITY OF TECHNOLOGY Ehitajate tee 5 19086 Tallinn, Estonia Registry code 74000323 Phone + 372 620 2002 E-mail [email protected] www.taltech.ee 0 0 TALLINN UNIVERSITY OF TECHNOLOGY Ehitajate tee 5 19086 Tallinn, Estonia Registry code 74000323 Phone + 372 620 2002 E-mail [email protected] www.taltech.ee -3810 428625 0 0 No. Dear Dr. Päivö Kinnunen This is a great honor to inform you that the Dean of the School of Engineering of Tallinn University of Technology confirmed your status as an opponent for the examination of Mustafa Cem Usta ’s paper „ Accelerated Carbonation of Ca-rich Fly Ashes in Non-Cement Applications ” to be examined as a Doctoral thesis. Your participation in the examination on December 12 th , 20 2 3 in Tallinn is required on-site or by means of electronic communication . Please find attached the thesis for your assessment. I would appreciate you stating your opinion about the thesis and e-mailing it to the address indicated below at your earliest convenience, but not later than one week before examination ( December 5 th , 202 3 ) to meet the requirements for the further procedure. Please note that e-mail messages are welcome for more effective communication, although the official procedure foresees original documents only. In the case of your positive opinion, I expect you to supplement it with critical remarks and questions concerning the subject and the content of the thesis for further discussion at the publicly open defense procedure. With this, please accept my deepest gratitude for your co-operation. Yours sincerely, Maarja Grossberg -Kuusk Director Department of Materials and Environmental Technology E-mail: [email protected]