Exhibit 1 AGREEMENT, dated as of July 25, 1997, by and among Insituform Technologies, Inc., a Delaware corporation (the "Company"); Jerome Kalishman ("Mr. Kalishman"), Nancy F. Kalishman ("Mrs. Kalishman"), The Jerome and Nancy Kalishman Family Fund...Shareholder Agreement • July 28th, 1997 • Kalishman Jerome • Water, sewer, pipeline, comm & power line construction • Delaware
