EXHIBIT 16 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, NW Washington, D.C. 20549 May 15, 2002 Dear Sir: We have read Item 4 included in the Form 8-K dated May 15, 2002 of Mirant Corporation to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen LLP - ---------------------------------- Arthur Andersen LLP Cc: Ms. Marce Fuller, President and CEO, Mirant Corporation