International Marketing Agreement Official Termination Letter

Exhibit 10.01

                                                               August 16th, 2004

                        International Marketing Agreement

                           Official Termination Letter

     Between:      SOTA Instruments Inc. ("SOTA"), and

                  Essential Innovations Asia Limited ("EIAL"), and

                  Essential Innovations Technology Corp. ("EITC")

     To:           Russell Torlage

                  President, SOTA

     From:         Mr. Jason McDiarmid

                  President/CEO, EIAL and EITC

     Re:            Termination and Cancellation of the International Marketing

                   Agreement, (the "Agreement") originally dated April 9th, 2002

It is hereby agreed between SOTA Instruments Inc., Essential Innovations Asia

Limited and Essential Innovations Technology Corp. that as of the date of this

letter of August 16th, 2004, the International Marketing Agreement dated April

9th, 2002, shall offi