Stellar Biotechnologies, Inc.’ Exclusive License Agreement on Bayer Innovation/Stellar KLH Technology

PORT HUENEME, CA--(Marketwire - December 07, 2010) -

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Stellar Biotechnologies, Inc. (TSX-V: KLH) (PINKSHEETS: SBOTF) is pleased to announce that it has acquired an exclusive, irrevocable, worldwide, sub-licensable and royalty-free license to the technology developed through a Collaborative Research Agreement between Stellar and Bayer Innovations (BIG). The license includes a carve-out by BIG for use of the technology in its non-Hodgkin lymphoma (NHL) vaccine which is currently under development. Otherwise, the license leaves Stellar free to commercialize the technology, exclusively, in all other fields.

Stellar CEO Frank Oakes said, "The technology developed through the collaboration with BIG represents a breakthrough in the production of highly characterized, immunogenically potent carrier proteins (ICPs), not only in terms of quality and purity, but also for cost management in the final drug product. The technology will be integrated into BIG's NHL vaccine platform, and commercialized broadly by Stellar for other vaccines and related products."

Stellar's CEO letter to shareholders, dated 11/24/10, has been posted: http://www.stellarbiotechnologies.com/investors/shareholders/index.php?&content_id=54.

Stellar Biotechnologies, Inc. (TSX-V: KLH) (PINKSHEETS: SBOTF) (www.StellarBiotechnologies.com) is a world leader in sustainable manufacturing of pharmaceutical grade immune carrier proteins (ICP), particularly with regard to the present most important pharmaceutical protein in this class, KLH (Keyhole Limpet Hemocyanin). This evolutionary protein has a highly complex structure that makes it ideal for use in human and animal vaccines and diagnostic products. With partners and customers, its flagship Stellar KLH products are in the clinic, and on the way to being established as the only sustainable, long-term pharmaceutical source.

There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Readers should not place undue reliance on such statements. Except in accordance with applicable securities laws, the Company expressly disclaims any obligation to update any forward-looking statements or forward-looking statements that are incorporated by reference herein. This news release does not constitute an offer to sell, or a solicitation of an offer to buy any of the Company's securities set out herein in the United States, or to, or for the benefit or account of, a U.S. Person or person in the United States. Neither TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of these releases.