Exhibit 99.1

THOMAS & BETTS CORPORATION AND SUBSIDIARIES
2010 Consolidated Statements of Operations
Restated For Sale of Divested Business
(In thousands, except per share data)
(Unaudited)

	Quarter Ended
	March 31,			June 30,			September 30,
	2010			2010			2010
	Restated			Restated			Restated
Net sales	$	453,629		$	499,980		$	518,233
Cost of sales		319,029			342,185			352,096
Gross profit		134,600			157,795			166,137
Gross profit — % of net sales		29.7	%		31.6	%		32.1	%
Selling, general and administrative		88,479			103,931			97,470
Selling, general and administrative — % of net sales		19.5	%		20.8	%		18.8	%
Earnings from operations		46,121			53,864			68,667
Earnings from operations — % of net sales		10.2	%		10.8	%		13.3	%
Interest expense, net		(8,371	)		(8,902	)		(9,042	)
Other (expense) income, net		130			935			(975	)
Earnings before income taxes		37,880			45,897			58,650
Income tax provision		11,565			13,703			16,056
Effective tax rate		30.5	%		29.9	%		27.4	%
Net earnings from continuing operations		26,315			32,194			42,594
Earnings from discontinued operations, net		1,637			1,407			1,510
Net earnings	$	27,952		$	33,601		$	44,104
Basic earnings (loss) per share:
Continuing operations	$	0.51		$	0.62		$	0.83
Discontinued operations		0.03			0.03			0.02
Net earnings	$	0.54		$	0.65		$	0.85
Diluted earnings (loss) per share:
Continuing operations	$	0.50		$	0.61		$	0.81
Discontinued operations		0.03			0.02			0.03
Net earnings	$	0.53		$	0.63		$	0.84
Average shares outstanding:
Basic		52,067			51,965			51,602
Diluted		53,005			53,041			52,641

THOMAS & BETTS CORPORATION AND SUBSIDIARIES
2010 Segment Information
Restated For Sale of Divested Business
(In thousands)
(Unaudited)

	Quarter Ended
	March 31,			June 30,			September 30,
	2010			2010			2010
	Restated			Restated			Restated
Net sales:
Electrical	$	367,246		$	429,341		$	439,172
Steel Structures		59,897			49,624			57,232
HVAC		26,486			21,015			21,829
Total net sales	$	453,629		$	499,980		$	518,233
Segment earnings:
Electrical	$	63,888		$	84,310		$	89,588
Steel Structures		9,890			8,045			11,092
HVAC		4,291			2,307			2,868
Total reportable segment earnings	$	78,069		$	94,662		$	103,548
Corporate expense		(9,887	)		(17,703	)		(12,615	)
Depreciation and amortization expense		(18,460	)		(20,261	)		(20,054	)
Share-based compensation expense		(3,601	)		(2,834	)		(2,212	)
Interest expense, net		(8,371	)		(8,902	)		(9,042	)
Other (expense) income, net		130			935			(975	)
Earnings before income taxes	$	37,880		$	45,897		$	58,650
Segment earnings — % of net sales:
Electrical		17.4	%		19.6	%		20.4	%
Steel Structures		16.5	%		16.2	%		19.4	%
HVAC		16.2	%		11.0	%		13.1	%
Total		17.2	%		18.9	%		20.0	%

THOMAS & BETTS CORPORATION AND SUBSIDIARIES
2009 Consolidated Statements of Operations
Restated For Sale of Divested Business
(In thousands, except per share data)
(Unaudited)

	Quarter Ended												Year Ended
	March 31,			June 30,			September 30,			December 31,			December 31,
	2009			2009			2009			2009			2009
	Restated			Restated			Restated			Restated			Restated
Net sales	$	443,606		$	443,360		$	468,097		$	477,645		$	1,832,708
Cost of sales		308,848			316,162			326,058			328,406			1,279,474
Gross profit		134,758			127,198			142,039			149,239			553,234
Gross profit — % of net sales		30.4	%		28.7	%		30.3	%		31.2	%		30.2	%
Selling, general and administrative		91,091			91,327			90,656			93,948			367,022
Selling, general and administrative — % of net sales		20.6	%		20.6	%		19.3	%		19.7	%		20.0	%
Intangible asset impairment		—			—			—			5,794			5,794
Earnings from operations		43,667			35,871			51,383			49,497			180,418
Earnings from operations — % of net sales		9.8	%		8.1	%		11.0	%		10.4	%		9.8	%
Interest expense, net		(9,461	)		(8,378	)		(8,478	)		(9,166	)		(35,483	)
Loss on extinguishment of debt		—			—			—			(6,391	)		(6,391	)
Other (expense) income, net		1,905			1,845			(2,101	)		197			1,846
Earnings before income taxes		36,111			29,338			40,804			34,137			140,390
Income tax provision		10,803			8,598			11,424			8,630			39,455
Effective tax rate		29.9	%		29.3	%		28.0	%		25.3	%		28.1	%
Net earnings from continuing operations		25,308			20,740			29,380			25,507			100,935
Earnings from discontinued operations, net		761			1,921			2,731			1,562			6,975
Net earnings	$	26,069		$	22,661		$	32,111		$	27,069		$	107,910
Basic earnings (loss) per share:
Continuing operations	$	0.48		$	0.40		$	0.56		$	0.49		$	1.93
Discontinued operations		0.02			0.03			0.06			0.03			0.14
Net earnings	$	0.50		$	0.43		$	0.62		$	0.52		$	2.07
Diluted earnings (loss) per share:
Continuing operations	$	0.48		$	0.39		$	0.56		$	0.48		$	1.91
Discontinued operations		0.01			0.04			0.05			0.03			0.13
Net earnings	$	0.49		$	0.43		$	0.61		$	0.51		$	2.04
Average shares outstanding:
Basic		52,569			52,283			52,178			51,856			52,244
Diluted		52,952			53,019			52,858			52,861			52,958

THOMAS & BETTS CORPORATION AND SUBSIDIARIES
2009 Segment Information
Restated For Sale of Divested Business
(In thousands)
(Unaudited)

	Quarter Ended												Year Ended
	March 31,			June 30,			September 30,			December 31,			December 31,
	2009			2009			2009			2009			2009
	Restated			Restated			Restated			Restated			Restated
Net sales:
Electrical	$	352,603		$	365,722		$	393,894		$	376,115		$	1,488,334
Steel Structures		61,945			54,950			50,922			66,645			234,462
HVAC		29,058			22,688			23,281			34,885			109,912
Total net sales	$	443,606		$	443,360		$	468,097		$	477,645		$	1,832,708
Segment earnings:
Electrical	$	55,816		$	55,224		$	73,565		$	72,842		$	257,447
Steel Structures		14,430			12,118			10,082			10,803			47,433
HVAC		5,722			2,562			3,221			6,708			18,213
Total reportable segment earnings	$	75,968		$	69,904		$	86,868		$	90,353		$	323,093
Corporate expense		(11,198	)		(11,810	)		(14,908	)		(9,507	)		(47,423	)
Depreciation and amortization expense		(18,315	)		(18,722	)		(17,998	)		(18,261	)		(73,296	)
Share-based compensation expense		(2,788	)		(3,501	)		(2,579	)		(7,294	)		(16,162	)
Intangible asset impairment		—			—			—			(5,794	)		(5,794	)
Interest expense, net		(9,461	)		(8,378	)		(8,478	)		(9,166	)		(35,483	)
Loss on extinguishment of debt		—			—			—			(6,391	)		(6,391	)
Other (expense) income, net		1,905			1,845			(2,101	)		197			1,846
Earnings before income taxes	$	36,111		$	29,338		$	40,804		$	34,137		$	140,390
Segment earnings — % of net sales:
Electrical		15.8	%		15.1	%		18.7	%		19.4	%		17.3	%
Steel Structures		23.3	%		22.1	%		19.8	%		16.2	%		20.2	%
HVAC		19.7	%		11.3	%		13.8	%		19.2	%		16.6	%
Total		17.1	%		15.8	%		18.6	%		18.9	%		17.6	%