SEGMENT REPORTING (Tables)

12 Months Ended

Sep. 30, 2020

Revenue from external customers by segment are as follows:


	Year Ended September 30,
	2020		2019		2018
Segment Revenue:
Electronic Materials:
CMP Slurries	$	480,617	$	460,053	$	476,828
Electronic Chemicals	316,253		278,413		—
CMP Pads	85,954		94,585		83,117
Total Electronic Materials	882,824		833,051		559,945

Performance Materials:
PIM	141,503		140,553		—
Wood Treatment	62,655		31,898		—
QED	29,288		32,194		30,178
Total Performance Materials	233,446		204,645		30,178

Total	$	1,116,270	$	1,037,696	$	590,123

Capital expenditures by segment are as follows:

Adjusted EBITDA by segment is as follows:


	Year Ended September 30,
	2020		2019		2018
Net income	$	142,828	$	39,215	$	110,043
Interest expense	42,510		45,681		2,905
Interest income	(670)		(2,346)		(4,409)
Income taxes	30,519		23,891		51,668
Depreciation and amortization	127,737		98,592		25,876
EBITDA	342,924		205,033		186,083
Acquisition and integration-related expense	10,852		34,709		3,861
Charges related to asset impairment of wood treatment business	2,314		67,372		—
Costs related to KMG-Bernuth warehouse fire, net of insurance recovery	1,083		9,905		—
Costs related to the Pandemic, net of grants received	849		—		—
Charge for fair value write-up of acquired inventory sold	—		14,869		—
Net costs related to restructuring of the wood treatment business	(221)		1,530		—
Consolidated adjusted EBITDA	$	357,801	$	333,418	$	189,944

Segment adjusted EBITDA:
Electronic Materials	$	299,037	$	294,902	$	222,019
Performance Materials	106,797		91,372		7,191
Unallocated corporate expenses	(48,033)		(52,856)		(39,266)
Consolidated adjusted EBITDA	$	357,801	$	333,418	$	189,944