Deson Sitorus attended a classroom training program on harbor tug handling from September 17th to October 3rd 2002 conducted by PSA Marine Pte Ltd. The program provided participants with theory on basic seamanship and an understanding of handling a range of modern harbor tugs with different propulsion systems including Voith Schneider, Aquamaster, Schottel, and Niigata Z-Pellers. The certificate was signed by Capt Foo See Tong, Assistant Manager of Safety and Training at PSA Marine Pte Ltd and the trainer Frank R. Ambrose.

1. 6psn Marine
CERTIFICATE OF
This fs fo certifu that
Deson Sitorus
has attended the
Classroorn Troiining on
Elarbour Tug lforndting
Progranrnrle
Conductedby
PSA Msrine Pte Ltd
Frann
t7thSeptember - zrd October zAoZ
ICapt Foo See Tong
Asst. Manager (SAFETY, TRA|NING)
Marine Logistics Department
PSA Marine Pte Ltd
Marine Logisties Department
PSA Marine Pte Ltd
The elassroom trairufutg on harboar tug handling progr&mme provides the partieipant with
the theory on basic seamanship and understanding on handling il range iyaigerent
madern harbour tug propakion af Yoith Schneider, Aquamaster, Schauei SRp and Niigata
Z-Pellers.
GOO{6 Oct 2flt7
Frank R. Ambrose
(Tugmaster Trainer)