Preferred Registrar Group, Inc.
30561 Dequindre Rd. Madison Heights, MI 48071
Certifies that

Century Chemical
7711 Lyndon
Detroit, MI 48328

has implemented a Quality Management System scope
in accordance with:

ISO 9001:2008

The Registration of this Quality Management System
Governs:

The design, manufacturing, sales, service and distribution of proprietary chemical blends.

Certified Date:
10/3/2006

This certificate was issued on:
8/9/2009

It is valid until:
8/9/2012

Certificate Registration
Number:
06-R1095