EXECUTION COPY EXHIBIT 10.5 SECOND SPT GUARANTY This SECOND GUARANTY (this "GUARANTY") is entered into as of October 14, 2005 by AMALGAMATED COLLATERAL TRUST, a Delaware business trust ("GUARANTOR"), in favor of and for the benefit of SNAKE RIVER...Second SPT • November 15th, 2005 • Valhi Inc /De/ • Industrial inorganic chemicals • Washington
