MasTec (MTZ) S-4 Registration of securities issued in business combination transactions

Exhibit 12

	2006			2005			2004			2003			2002
Fixed Charges:
Interest expense or capitalized		14,394			19,463			19,723			19,037			18,739
Estimate of interest within rental expense		17,556			16,159			13,545			12,351			9,310
FIXED CHARGES	$	31,949		$	35,622		$	33,268		$	31,388		$	28,049
Earnings:
Income (loss) from continuing operations		38,915			18,604			(17,743	)		(20,791	)		(123,574	)
Minority interest		2,294			1,714			333			—			—
Equity pick-up		(5,772	)		(285	)		—			—			—
Fixed charges		31,949			35,622			33,268			31,388			28,049
EARNINGS (Loss)	$	67,387		$	55,655		$	15,858		$	10,597		$	(95,525	)
Ratio of Earnings to Fixed Charges		2.1	x		1.6	x		0.5	x		0.3	x		(3.4	)x

For the years ended December 31, 2004, 2003 and 2002, we had an earnings-to-fixed charges coverage deficiency of approximately $17.4 million, $20.8 million and $123.6 million, respectively.