PetroSun Issues Algae-to-Biofuels Update

  PetroSun, Inc. (PINKSHEETS: PSUD) announced
today the following activities related to its domestic algae-to-biofuels
program.

The Company is a project participant in a number of USDA-DOE and DOE projects that have filed applications for federal funding. These projects are designed to demonstrate that micro algae and macro algae are a commercially viable feedstock for our future energy needs.

PetroSun is a USDA-DOE project participant with Carnegie Mellon, the University of New Hampshire and Simply Green Biofuels in a proposal submitted as the Life Cycle Assessment of Algae-based Biofuels.

A USDA-DOE project was applied for by the University of Arizona and includes PetroSun, Purdue University School of Aeronautics and Astronautics, Renascent Energy, Carbon2Algae, Innovative Trade Development Center, USDA Laboratory (Peoria, IL) and Pukyong University (South Korea) as pre-application participants of a project titled as the Production of Advanced Biofuels from Algae.

A DOE grant proposal application was submitted by the University of Arizona for the Demonstration of a Sustainable and Integrated Algae-Oil Biorefinery in the Semi-Arid U.S. Southwest. Participants in this program include the University of Arizona, Arizona Public Service, PetroSun, Texas A&M, Purdue University, Renascent Energy, ABRI-Tech, Carbon2Algae and Rolls Royce.

About PetroSun

PetroSun, Inc. is a diversified energy company with technology and operations in oil, natural gas and helium exploration, development and production, commercialization of algae-to-biofuels, microbial enhanced oil recovery and oilfield pipe and supply.

For more information about PetroSun visit the company's website at www.petrosuninc.com.

Except historical matter contained herein, matters discussed in this news release are forward-looking statements and are made pursuant to the safe harbor provision of the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect assumptions and involve risks and uncertainties, which may affect the Company's business and prospects and cause actual results to differ materially from these forward-looking statements.

Contact: Investor Relations PetroSun, Inc. Email Contact