Exhibit 10.21
AMENDMENT TO ROYALTY AGREEMENT
Amendment, dated as of November 16, 2004 (this "Amendment"), to the Royalty Agreement, dated August 25,
2003, between Dr. Christine Durbak and MedStrong International Corporation (the "Royalty Agreement").
WHEREAS, the parties to the Royalty Agreement are in agreement to terminate the Royalty Agreement; and
WHEREAS, MedStrong has agreed to issue to Durbak MedStrong's Promissory Note due December 31,
2005, in the principal amount of $50,000, and bearing interest at the rate of 20% per annum, in the form attached
hereto (the "Promissory Note"), and to issue Durbak 100,000 shares of Medstrong common stock (the
"Shares");
NOW, THEREFORE, in consideration of Durbak's termination of the Royalty Agreement, and Medstrong's
issuance to Durbak of the Promissory Note and the Shares, the parties hereto hereby agree as follows:
1. Medstrong and Durbak agree that the Royalty Agreement is hereby terminated as of November 15, 2004, and
that Medstrong shall have no further obligations thereunder.
2. Medstrong agrees to issue the Note and Shares to Durbak
IN WITNESS WHEREOF, the parties have executed this Amendment as of the date first above written.
MedStrong International Corporation
Address
By: /s/ Jeanine Folz
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Accepted:
/s/ Christine Durbak
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Print Name
ATTACHMENT
MEDSTRONG INTERNATIONAL CORPORATION
PROMISSORY NOTE
$50,000 November 15, 2004
FOR VALUE RECEIVED, MEDSTRONG INTERNATIONAL CORPORATION, a Delaware corporation
(hereinafter called "Borrower" or the "Company"), hereby promises to pay to Christine Durbak ("Holder"), or
order, the sum of Fifty Thousand ($50,000) Dollars, with interest accruing at the annual rate of Twenty (20.0%)
percent, on December 31, 2005 (the "Maturity Date"), or as such date may be extended by agreement of the
parties hereto.
The following terms shall apply to this Note:
ARTICLE I
PAYMENT RELATED PROVISIONS
1.1 Payment Grace Period. The Borrower sha