X0202 3 2007-08-31 0 0000086264 ST LAWRENCE SEAWAY CORP STLS.OB 0001240139 ZIMMERMAN BERNARD 18 HIGH MEADOW RD WESTON CT 06883 1 1 1 0 Chairman, President & CEO Common voting stock, par value $0.01 75000 I See explanation, below Warrant 1 2007-08-31 2017-08-31 Common stock, par value $0.01 250000 I See explanation, below. Bernard Zimmerman is the President and majority shareholder of Bernard Zimmerman & Company, Inc., the direct owner of the securities listed on this Form 3. /s/ Bernard Zimmerman 2007-09-10