X0101 42003-05-19 0000912603 SCHNITZER STEEL INDUSTRIES INC SCHN 0001052192 CASCADE INVESTMENT LLC 0010 0000902012 GATES WILLIAM H III 0010Common Stock2003-05-194S010025.5D533800DCommon Stock2003-05-194S020025.8D533600DCommon Stock2003-05-194S080025.95D532800DCommon Stock2003-05-194S030026.33D532500DCommon Stock2003-05-194S060026.43D531900DCommon Stock2003-05-194S0230026.45D529600DCommon Stock2003-05-194S015826.5D529442DCommon Stock2003-05-194S0114226.55D528300DCommon Stock2003-05-194S0270026.56D525600DCommon Stock2003-05-194S050026.59D525100DCommon Stock2003-05-194S020026.64D524900DCommon Stock2003-05-194S0180026.65D523100DCommon Stock2003-05-194S090026.75D522200DMichael Larson as Manager of Cascade Investment, L.L.C. and on behalf of William H. Gates III. Authorized under power of attorney dated 3/14/2001 by William H. Gates III, filed on 3/19/2001 with Cascade's Schedule 13D, SEC File No. 005-52919.2003-05-21