Sionix Corporation Updates Status of MWTS Deployment in the Williston Basin

LOS ANGELES, CA--(Marketwire - May 15, 2012) - Sionix Corporation (OTCBB: SINX) ("Sionix" or the "Company"), a designer of patented water treatment systems, announced today the update on the deployment of their Mobile Water Treatment System that has been customized for McFall Inc., for the treatment of drilling fluids from E&P operations in the Williston Basin of North Dakota. Jim Currier, Sionix Chief Executive Officer, commented, "We have been assigned a drilling rig by McFall, and we are waiting for a drilling site to become available to us. During this time, we have located our equipment at a staging area, where the treatment configuration has been completely wet tested, and is available to deploy as soon as we receive McFall's notification."

Treatment operations are expected to commence within 24 - 48 hours after deployment. As soon as the MWTS has been deployed to a drilling site, Sionix will make another announcement.

About Sionix Corporation

Sionix designs innovative and advanced Mobile Water Treatment Systems (MWTS) intended for use in energy projects including subterranean fracturing used in oil and gas drilling, government facilities, healthcare facilities, emergency water supplies, housing development projects, and various other industrial processes. These systems can be located adjacent to contaminated water sites or as a pre-treatment for reverse osmosis and other membrane applications. Industries involved in dairy, agribusiness, meat processing, mining, poultry operations, and many others can benefit from Sionix' cost-effective, easily maintained, portable water treatment systems. For more information about the company, go to www.sionix.com.

Forward Looking Statements

All statements in this press release that are not statements of historical fact are forward-looking statements, including any projections of earnings, revenue, or other financial items, any statements of the plans, strategies, and objectives of management for future operations, any statements concerning proposed new products, services or developments, any statements regarding future economic conditions or performance, statements of belief and any statements of assumptions underlying any of the foregoing. These statements are based on expectations and assumptions as of the date of this press release and are subject to numerous risks and uncertainties, which could cause actual results to differ materially from those described in the forward-looking statements. The risks and uncertainties include, but are not limited to, whether Sionix Corporation can raise capital as and when it needs to, whether the water purification systems will generate significant sales, whether it can construct and operate a wastewater treatment facility, whether it can compete successfully in its market and industry, and other factors beyond the control of Sionix Corporation, including those detailed from time to time in the reports filed with the Securities and Exchange Commission. Sionix Corporation assumes no obligation and does not intend to update these forward-looking statements.