LAVAL, QUEBEC, CANADA--(Marketwire - April 25, 2012) - ProMetic Life Sciences Inc. (TSX:PLI) ("ProMetic"or the "Corporation") announced today that it has received a $1.9 million follow-on purchase order pursuant to an existing long-term supply agreement entered into with a US based biopharmaceutical company for the manufacturing of an established biopharmaceutical product.

This $1.9 million purchase order relates to the supply of a proprietary affinity adsorbent developed and manufactured by ProMetic's UK subsidiary, ProMetic Biosciences Ltd with deliveries to be completed during 2012.

"We are pleased to have secured another order, strengthening our growing baseline business and providing solid progress towards our 2012 financial goals. With this order, we've secured $3.3 million of additional business in the last week alone. Each new follow-on order reinforces the recurring baseline revenue aspect of our business model and confirms ProMetic's superior product performance", commented Pierre Laurin, President and Chief Executive Officer of ProMetic.

The supply agreement includes customary provisions for the supply of a purification component used by ProMetic's client for the manufacture of biopharmaceutical products.

About ProMetic Life Sciences Inc.

ProMetic Life Sciences Inc. ([ www.prometic.com ]) is a biopharmaceutical company specializing in the research, development, manufacture and marketing of a variety of commercial applications derived from its proprietary Mimetic Ligand™ technology. This technology is used in large-scale purification of biologics and the elimination of pathogens. ProMetic is also active in therapeutic drug development with the mission to bring to market effective, innovative, lower cost, less toxic products for the treatment of hematology and cancer. Its drug discovery platform is focused on replacing complex, expensive proteins with synthetic "drug-like" protein mimetics. Headquartered in Laval (Canada), ProMetic has R&D facilities in the UK, the U.S. and Canada, manufacturing facilities in the UK and business development activities in the U.S., Europe, Asia and in the Middle-East.

Forward Looking Statements

This press release contains forward-looking statements about ProMetic's objectives, strategies and businesses that involve risks and uncertainties. These statements are "forward-looking" because they are based on our current expectations about the markets we operate in and on various estimates and assumptions. Actual events or results may differ materially from those anticipated in these forward-looking statements if known or unknown risks affect our business, or if our estimates or assumptions turn out to be inaccurate. Such risks and assumptions include, but are not limited to, ProMetic's ability to develop, manufacture, and successfully commercialize value-added pharmaceutical products, the availability of funds and resources to pursue R&D projects, the successful and timely completion of clinical studies, the ability of ProMetic to take advantage of business opportunities in the pharmaceutical industry, uncertainties related to the regulatory process and general changes in economic conditions. You will find a more detailed assessment of the risks that could cause actual events or results to materially differ from our current expectations on page 24 of ProMetic's Annual Information Form for the year ended December 31, 2011, under the heading "Risk and Uncertainties related to ProMetic's business". As a result, we cannot guarantee that any forward-looking statement will materialize. We assume no obligation to update any forward-looking statement even if new information becomes available, as a result of future events or for any other reason, unless required by applicable securities laws and regulations. All amounts are in Canadian dollars unless indicated otherwise.