June 30, 2006 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners:

 

Exhibit 4.6
June 30, 2006
Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549

Commissioners:
We are aware that our report dated April 26, 2006 on our review of interim financial information ofPhelps Dodge Corporation (the Company) for the three month periods ended March 31, 2006 and 2005and included in the Company’s quarterly report on Form 10-Q for the quarter ended March 31, 2006 isincorporated by reference in Inco Limited’s Amendment No. 5 to its Registration Statement on FormF-8 dated June 30, 2006.
Very truly yours,
/s/ PricewaterhouseCoopersLLP