Exhibit 4(a) AMENDMENT NO. 1 TO EXCHANGE AGREEMENT ------------------------------------- AMENDMENT NO. 1 TO EXCHANGE AGREEMENT, dated as of July 1, 2003 (the "Amendment"), by and between TXU Corp., a Texas corporation (the "Company"), TXU Energy...Exchange Agreement • August 13th, 2003 • Txu Corp /Tx/ • Electric services
Exhibit 4(b) AMENDMENT NO. 2 TO REGISTRATION RIGHTS AGREEMENT ------------------------------------------------ AMENDMENT NO. 2 TO REGISTRATION RIGHTS AGREEMENT, dated as of July 1, 2003 (this "Amendment"), by and between TXU Corp., a Texas corporation...Registration Rights Agreement • August 13th, 2003 • Txu Corp /Tx/ • Electric services
