EX-16.1 2 ex_16-1.txt LETTER FROM PRICEWATERHOUSECOOPERS LLP TO SEC November 9, 2005 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by the Rio Tinto America Inc. Savings Plan (copy attached), which we understand will be filed with the Commission, pursuant to Item 4.01 of Form 8-K, as part of the Form 8-K/A report of the Rio Tinto America Inc. Savings Plan dated November 9, 2005. We agree with the statements concerning our Firm in such Form 8-K/A. However, we make no comment whatsoever regarding the current status of the material weakness or any remedial actions taken with respect to such material weakness. Very truly yours, /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP Page 7 of 7 pages