Macquarie Capital Markets Canada Ltd.

EXHIBIT 10.9

Macquarie Capital Markets Canada Ltd.

000 Xxx Xxxxxx

Xxxxxxxxxx Xxxxx, Xxxxx 0000

X.X. Xxx 000

Xxxxxxx, Xxxxxxx X0X 0X0

XXXXXX

Telephone

Facsimile

Internet

x0 (000) 000 0000

xxx.xxxxxxxxx.xxx

15 January 2008

STRICTLY CONFIDENTIAL


Refinery Science Corp. 000 X. Xxxxxxxxxx Xxx. 000 Xxxxxx Xxxx Xx Xxxx, XX 00000-0000

Attention: Xx Xxxxx Xxxxxxx
President and Chief Executive Officer

Dear Sir,

Financing Engagement Agreement - Extension of Engagement

We refer to the Engagement Agreement entered into by Refinery Science Corp. and Orion Securities Inc. (now known as Macquarie Capital Markets Canada Ltd.) (“Macquarie”) on August 22, 2007 (the “Engagement Agreement”).

Capitalized expressions used in this letter have the meanings set out in the Engagement Agreement, unless otherwise stated.

Pursuant to clause 13 of the Engagement Agreement, Macquarie’s engagement was due to expire on December 31, 2007. The parties now wish to confirm in writing their agreement to extend the term of the engagement until February 28, 2008. By signing this letter below each of the Company and Macquarie confirm their agreement to vary clause 13 of the Engagement Agreement by deleting the words “December 31, 2007” and substituting “February 28, 2008”.

Would you please confirm your agreement to the terms of this extension letter by signing a copy of this letter and returning an original to us (Attention: Xxxxx X. Xxxxxx, facsimile number (000) 000-0000).

We look forward to working with you towards a successful conclusion to the Offering.

Yours sincerely

Macquarie Capital Markets Canada Ltd.