GREENROCK VENTURES, INC.
                        c/o William Tay, P.O. Box 42198
                       Philadelphia, Pennsylvania 19101
                            Tel/Fax: (917) 591-2648
                              Email: wtay@56k.net


                                        July 24, 2009

FILED VIA EDGAR

Attention: Hagen J. Ganem, Staff Attorney, Division of Corporation Finance
U.S. Securities and Exchange Commission
Mail Stop 4631
100 F Street, N.E.
Washington, D.C. 20549

RE:    Greenrock Ventures, Inc.
       Amendment No. 1 to Form 10
       Filed July 15, 2009
       File No. 0-53689

Dear Mr. Ganem,

In  response  to  your verbal comment on July 23, 2009, we are hereby filing on
Form CORRESP a "blacklined"  version (in PDF format) of Amendment No. 1 to Form
10, filed by Greenrock Ventures, Inc. on July 15, 2009.

We trust the above to be satisfactory.  If  you  have  any questions or require
anything further please give us a call or email us at wtay@56k.net.

Sincerely,

Greenrock Ventures, Inc.


/s/ William Tay
- ---------------------------------
William Tay
President and Director

(Enclosure)