EXHIBIT 2.3 AMENDMENT NO. 1 TO PURCHASE AGREEMENT This AMENDMENT NO. 1 dated as of February 13, 2004 (this "Amendment") to the Purchase Agreement dated as of November 18, 2003 (the "Purchase Agreement") among Ionics, Incorporated, a Massachusetts...Purchase Agreement • February 27th, 2004 • Ionics Inc • Special industry machinery, nec • New York
Contract Type FiledFebruary 27th, 2004 Company Industry Jurisdiction
dated as ofStockholders Agreement • February 27th, 2004 • Ionics Inc • Special industry machinery, nec • Massachusetts
Contract Type FiledFebruary 27th, 2004 Company Industry Jurisdiction
EXHIBIT 2.5Escrow Agreement • February 27th, 2004 • Ionics Inc • Special industry machinery, nec • New York
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EXHIBIT 2.4Escrow Agreement • February 27th, 2004 • Ionics Inc • Special industry machinery, nec • New York
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WITNESSETHEmployment Agreement • February 27th, 2004 • Ionics Inc • Special industry machinery, nec • Massachusetts
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PURCHASE AGREEMENT between THE INDIVIDUALS AND ENTITIES LISTED ON EXHIBIT A and IONICS, INCORPORATED Dated as of November 18, 2003Purchase Agreement • February 27th, 2004 • Ionics Inc • Special industry machinery, nec • New York
Contract Type FiledFebruary 27th, 2004 Company Industry JurisdictionTHIS PURCHASE AGREEMENT is dated as of November 18, 2003 (the “Agreement”) among the individuals and entities listed on Exhibit A (each a “Seller” and collectively, “Sellers”), and Ionics, Incorporated, a Massachusetts corporation (“Purchaser”).