Sionix (SINX) 8-K Changes in Registrant's Certifying Accountant

EXHIBIT 16.1

July 24, 2013

Securities and Exchange Commission

100 F Street, N.W.

Washington, DC 20549-7561

Dear Sirs/Madams:

We have read Item 4.01 of Sionix Corporation (the “Company”) Form 8-K dated July 24, 2013, and are in agreement with the statements relating only to Kabani & Company, Inc., CPAs, contained therein. We have no basis to agree or disagree with other statements of the Company contained therein

Very truly yours,

/s /  Kabani & Company, inc.

Certified Public Accountants