Halosource (Di) Regulatory News (HALO)

FOR IMMEDIATE RELEASE 23 March 2012

HaloSource, Inc.

("HaloSource" or "the Company")

DIRECTOR / PDMR SHAREHOLDING

Seattle, U.S.A. - HaloSource, Inc. (HALO.LN), the clean water and antimicrobial technology company traded on London's AIM, was notified yesterday that Martin Coles, Chief Executive Officer, has purchased 130,000 ordinary shares in the Company at an average price of 22.5 pence per share. Following this purchase, Martin Coles holds shares representing approximately 0.2% of the issued ordinary share capital of the Company.

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About HaloSource

HaloSource is a global clean water technology company headquartered in Seattle, Washington U.S.A. and is focused on the provision of cleaner, clearer and safer water using its proprietary technologies across four platforms:

·; HaloKlear™ products employ natural bio-polymers to provide water clarification on an industrial scale with dramatic reductions in ecological impact

·; HaloPure® became the first drinking water technology in 30 years to be registered by the United States Environmental Protection Agency ("USEPA"). In 2010, HaloPure was approved by China's Ministry of Health ("MOH") and widely recognized as the world's most stringent performance requirements for water purification, a key differentiator for our multi-national partners

·; SeaKlear® Pool and Spa treatment products bring both natural bio-polymers and antimicrobial applications for treating recreational water

·; HaloShield® products consist of antimicrobial coatings solutions that employ unique technology that binds chlorine-based bleach to textiles such as sheets, lab coats and towels for use as a non-toxic biocide. www.halosource.com

HaloKlear, HaloPure, SeaKlear and HaloShield are either trademarks or registered trademarks of HaloSource, Inc.