-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, FM3v69Z6KldaIABZyt8EE4B7RRx8XVBHxcctD54nykQEpXDLi2j52G1Ik/zkb9bL 0GRGtnj7kPm+Fa9r0Yge8g== 0000015615-06-000024.txt : 20060522 0000015615-06-000024.hdr.sgml : 20060522 20060522133033 ACCESSION NUMBER: 0000015615-06-000024 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20060518 FILED AS OF DATE: 20060522 DATE AS OF CHANGE: 20060522 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MASTEC INC CENTRAL INDEX KEY: 0000015615 STANDARD INDUSTRIAL CLASSIFICATION: WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623] IRS NUMBER: 650829355 STATE OF INCORPORATION: FL FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 800 DOUGLAS ROAD STREET 2: 12TH FLOOR CITY: CORAL GABLES STATE: FL ZIP: 33134 BUSINESS PHONE: 3055991800 MAIL ADDRESS: STREET 1: 800 DOUGLAS ROAD STREET 2: 12TH FLOOR CITY: CORAL GABLES STATE: FL ZIP: 33134 FORMER COMPANY: FORMER CONFORMED NAME: BURNUP & SIMS INC DATE OF NAME CHANGE: 19920703 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: de Cespedes Carlos M CENTRAL INDEX KEY: 0001303770 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-08106 FILM NUMBER: 06857832 BUSINESS ADDRESS: BUSINESS PHONE: 305-592-2324 MAIL ADDRESS: STREET 1: 3075 NW 107TH AVE CITY: MIAMI STATE: FL ZIP: 33172 4 1 edgardoc.xml PRIMARY DOCUMENT X0202 4 2006-05-18 0 0000015615 MASTEC INC MTZ 0001303770 de Cespedes Carlos M 3075 NW 107TH AVE MIAMI FL 33172 1 0 0 0 Common Stock 2006-05-18 4 A 0 4000 0 A 13901 D Represents $50,000 worth of restricted stock based on the closing market price of MasTec's common stock on the New York Stock Exchange on 18 May 2006. The Restricted Stock will vest 33% on the first anniversary of the grant, 33% on the second anniversary of the grant and 34% on the third anniversary of the grant. By: /s/ Alberto de Cardenas For: Carlos de Cespedes 2006-05-22 EX-24 2 powerofattorney.htm EDGAR SUPPORTING DOCUMENT

POWER OF ATTORNEY

        KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and appoints Alberto de Cardenas and C. Robert Campbell, and each of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead, in any and all capacities, to execute for and on behalf of the undersigned, in the undersigned’s capacity as an officer and/or director of MasTec Inc. (the “Company”), Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder;

  1. do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4 or 5 and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

  2. take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

          The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

          This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

          IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18 day of May, 2006.

/s/Carlos M de Cespedes
Signature

Carlos M de Cespedes
Print Name

-----END PRIVACY-ENHANCED MESSAGE-----