4. Goodwill

The Company tests its goodwill for impairment annually in the fourth quarter, and whenever events or changes in circumstances indicate that the carrying value may exceed its fair value.

The changes in the carrying amount of goodwill by reporting unit for the six months ended June 30, 2011 were as follows:

In thousands	December 31, 2010		Currency translation adjustments		June 30, 2011
Performance Materials	$	13,522	$	382	$	13,904
Other Products and Services		4,660		-		4,660
Total goodwill	$	18,182	$	382	$	18,564