MICHAEL GILLESPIE & ASSOCIATES, PLLC

CERTIFIED PUBLIC ACCOUNTANTS

10544 ALTON AVE NE

SEATTLE, WA 98125

206.353.5736

Exhibit 16.1

October 18, 2016

Office of the Chief Accountant

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: Cat 9 Group, Inc.

Dear Sirs/Madams:

The undersigned Michael Gillespie & Associates, PLLC previously acted as independent accountants to review the financial statements of Cat 9 Group, Inc. We are no longer acting as independent accountants to the Company.

This letter will confirm that we have read Item 4.01 included in the Form 8-K dated October 18, 2016 of Cat 9 Group, Inc. to be filed with the Securities and Exchange Commission and are in agreement with the statements related to our firm.

We hereby consent to the filing of this letter as an exhibit to the foregoing report on Form 8-K.

Very truly,

/S/ MICHAEL GILLESPIE & ASSOCIATES, PLLC