Common use of SUBSCRIPTION NOTICE Clause in Contracts

SUBSCRIPTION NOTICE. (To be executed only upon exercise of Warrant) _______________________________________, being the undersigned registered owner of this Warrant irrevocably exercises this Warrant for and purchases ______ shares of the Common Stock, par value $.Ol per share (the "Common Stock"), of American Ecology Corporation, constituting all or part of the shares of Common Stock purchasable with this Warrant, and herewith makes payment therefor, all at the price and on the terms and conditions specified in this Warrant and requests that certificates for the shares of Common Stock hereby purchased (and any securities or other property issuable upon such exercise) together with, if such certificates do not represent all the shares of Common Stock purchasable with this Warrant, a new Warrant, identical to the cancelled Warrant except with respect to the number of shares of Common Stock evidenced thereby, for the remaining unsold shares of Common Stock, be issued in the name of and delivered to the undersigned at the address set forth below. Dated: --------------------------- --------------------------------------- Name of Warrant Holder By: ------------------------------------ Name: ---------------------------------- Title: --------------------------------- --------------------------------------- Street Address --------------------------------------- City State Zip Code

SUBSCRIPTION NOTICE. (To be executed only upon World Commerce Online, Inc. The undersigned, the holder of the foregoing Warrant, hereby elects to exercise of Warrant) purchase rights represented by said Warrant for, and to purchase thereunder, _______ shares of the Common Stock covered by said Warrant and (a) herewith (1) makes payment in full therefor of $___________ by certified or official bank check payable to the order of the Company, or (2) surrenders to the Company that number of warrants required for full payment of the shares to be purchased; and (b) requests (1) that certificates for such shares (and any securities or other property issuable upon such exercise) be issued in the name of and delivered to __________________________________, being the undersigned registered owner of this Warrant irrevocably exercises this Warrant for and purchases whose address is ________________________________ and (2) if such shares of the Common Stock, par value $.Ol per share (the "Common Stock"), of American Ecology Corporation, constituting shall not include all or part of the shares of Common Stock purchasable with this issuable as provided in said Warrant, that a new Warrant of like tenor and herewith makes payment therefor, all at the price and on the terms and conditions specified in this Warrant and requests that certificates date for the shares balance of Common Stock hereby purchased (and any securities or other property issuable upon such exercise) together with, if such certificates do not represent all the shares of Common Stock purchasable with this Warrant, a new Warrant, identical to the cancelled Warrant except with respect to the number of shares of Common Stock evidenced thereby, for the remaining unsold shares of Common Stock, issuable thereunder be issued in the name of and delivered to the undersigned at the address set forth belowundersigned. ------------------------------- Signature Guaranteed: Dated: --------------------------- --------------------------------------- Name of Warrant Holder By: ------------------------------------ Name: ---------------------------------- Title: --------------------------------- --------------------------------------- Street Address --------------------------------------- City State Zip Code------------------------

SUBSCRIPTION NOTICE. (To be executed only upon exercise of Warrant) _______________________________________, being the undersigned registered owner of this Warrant irrevocably exercises this Warrant for and purchases ______ shares of the Common Stock, par value $.Ol per share (the "Common Stock"), of American Ecology Corporation, constituting all or part of the shares of Common Stock purchasable with this Warrant, and herewith makes payment therefor, all at the price and on the terms and conditions specified in this Warrant and requests that certificates for the shares of Common Stock hereby purchased (and any securities or other property issuable upon such exercise) together with, if such certificates do not represent all the shares of Common Stock purchasable with this Warrant, a new Warrant, identical to the cancelled Warrant except with respect to the number of shares of Common Stock evidenced thereby, for the remaining unsold shares of Common Stock, be issued in the name of and delivered to the undersigned at the address set forth below. Dated: --------------------------- --------------------------------------- ---------------------------- ------------------------------------ Name of Warrant Holder By: ------------------------------------ --------------------------------- Name: ---------------------------------- ------------------------------- Title: --------------------------------- --------------------------------------- ------------------------------ ------------------------------------ Street Address --------------------------------------- ------------------------------------ City State Zip Code