EXHIBIT 2(a) CONFORMED COPIES AMENDMENT TO AGREEMENT AND PLAN OF MERGER AMONG HACH COMPANY, HACH ACQUISITION CORP. AND ENVIRONMENTAL TEST SYSTEMS, INC. This Amendment to the Agreement and Plan of Merger entered into among Hach Company, a Delaware...Agreement and Plan of Merger • March 26th, 1998 • Hach Co • Laboratory analytical instruments • Delaware
R E C I T A L SEmployment Agreement • March 26th, 1998 • Hach Co • Laboratory analytical instruments • Colorado
LOCK-UP AGREEMENTLock-Up Agreement • March 26th, 1998 • Hach Co • Laboratory analytical instruments • Delaware
ARTICLE I IRREVOCABLE PROXY 1.1 GRANT OF IRREVOCABLE PROXY. (a) Solely for the purpose of securing the approval and adoption by the stockholders of the Company of the Merger Agreement and the consummation of the transactions contemplated thereby and...Conformed Copy Stockholder Agreement • March 26th, 1998 • Hach Co • Laboratory analytical instruments • Delaware
