Dear Anthony.

We would like to take this opportuntity to express our sincere gratitude for the outstanding services that Modena Design Centers(Pty)Ltd has supplied us with to date on our Grootegeluk Medupi Expansion Project.

Our recent experiences with your NavisWork software incorporating Vault for Manufacturing has
been an educational and exciting phase of our project. We are sure that the purchase of these
producs will hold us in good standing for the rest of our project and way into future.

The placement of your onsite Applications Engineer has been extremebly benficial to the Project
team and the Grootegeluk Medupi Expansion Project in general. The success of the installation
and implementation of the above software producs and that of AutoCAD Inventor 2010 has been a direct result of the dedication and hard work achieved on our project by your members of staff.

We look forward to the future together with Modena Design Centers and the outstanding service
and product support you have supplied to Exxaro and the Grootegeluk Medupi Expansion Project.

Your faithfully,

Louis Steyn
Engineering Manager
Grootegeluk Medupi Expansion Project