SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

6 Months Ended

Jun. 30, 2013

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Revenue by segment

The composition of our revenues by segment is as follows:

	Six Months Ended
	June 30,
	2013			2012
Performance materials		49	%		52	%
Construction technologies		20	%		23	%
Energy services		30	%		24	%
Transportation		4	%		5	%
Intersegment sales		-3	%		-4	%
		100	%		100	%