EXHIBIT 2.1 AMENDMENT TO RIGHTS AGREEMENT THIS AMENDMENT ("Amendment") is being entered into as of June 28, 2000 between UTILX CORPORATION, a Delaware corporation (the "Company") and AMERICAN STOCK TRANSFER & TRUST COMPANY, as rights agent (the...Rights Agreement • June 29th, 2000 • Utilx Corp • Water, sewer, pipeline, comm & power line construction • Delaware