JOINT FILING AGREEMENT ----------------------Joint Filing Agreement • October 18th, 1999 • Enron Capital & Trade Resources Corp
The undersigned each agree that (i) the Statement on Schedule 13D relating to the Common Stock, $.00001 par value, of Quanta Services, Inc. is adopted and filed on behalf of each of them, (ii) all future amendments to such Statement on Schedule 13D will, unless written notice to the contrary is delivered as described below, be jointly filed on behalf of each of them, and (iii) the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934 apply to each of them. This agreement may be terminated with respect to the obligation to jointly file future amendments to such Statement on Schedule 13D as to any of the undersigned upon such person giving written notice thereof to each of the other persons signatory hereto, at the principal office thereof.
Page 11 of 22 Pages FIRST AMENDMENT TO SECURITIES PURCHASE AGREEMENT AND REGISTRATION RIGHTS AGREEMENT This FIRST AMENDMENT TO SECURITIES PURCHASE AGREEMENT AND REGISTRATION RIGHTS AGREEMENT, dated as of September 21, 1999 (this "First Amendment"), is...Securities Purchase Agreement and Registration Rights Agreement • October 18th, 1999 • Enron Capital & Trade Resources Corp • Texas
