VANCOUVER, BRITISH COLUMBIA–(Marketwired – June 27, 2016) – International Wastewater Systems Inc. (“IWS” or the “Company”) (CSE:IWS)(FRANKFURT:IWI) is pleased to announce that the Company has completed the in-house design of the newest and largest SHARC wastewater heat exchange system, the model 880 (“SHARC 880”). The SHARC 880 offers the highest capacity of any SHARC system designed and built by IWS to date.

The SHARC 880 handles a flow rate of up to 1500 gallons per minute (“GPM”), a capacity increase of three-times when compared to existing SHARC models with flow rates of 100 GPM to 500 GPM. In-house testing is now underway and will be completed in the next 90 days. Following completion of the design and test phase, production will be completed at IWS headquarters near Vancouver. The unit is scheduled to be installed and tested at a wastewater heat exchange project within a District Heating Network (“DHN”) in Vancouver. The DHN currently serves 4.3 million square feet (approximately 400,000 square meters) of residential, commercial, and institutional space with plans for future expansion.

The SHARC 880 was built in response to demand from prospective clients seeking a system with increased capacity. In particular, ongoing requests from various District Heating Networks confirm that wastewater heat exchange equipment for large and utility-scale projects is a growing market for IWS.

ON BEHALF OF THE BOARD

Lynn Mueller, Chairman and Chief Executive Officer

About International Wastewater Systems Inc.

International Wastewater Systems Inc. (CSE:IWS)(FRANKFURT:IWI) is a world leader in wastewater heat recovery. IWS systems recycle thermal energy from wastewater, generating the most energy efficient and economical systems for heating, cooling & hot water for commercial, residential and industrial buildings.

The CSE does not accept responsibility for the adequacy or accuracy of this release.