PetroSun CEO Invited to Speak at 4th Renewable Energy Finance Forum

  PetroSun, Inc. (PINKSHEETS: PSUD) announced
today that its CEO, Gordon LeBlanc, Jr., has accepted an invitation to
speak at the 4th Renewable Energy Finance Forum - China to be held in
Beijing on May 12-13, 2009. The Renewable Energy Finance Forum - China is
jointly organized with the Chinese Renewable Energy Industry Association.
The focus of the forum is finance and investment in renewable energy. Mr.
LeBlanc will discuss the commercialization of biofuel technologies in the
Chinese market.

PetroSun has entered into a joint venture agreement with Shanghai Jun Ya Yan Technology Development Co, Ltd. to establish commercial scaled algae farm systems in China. The joint venture has selected two sites for the initial algae farm systems and is diligently working on native strain selection and work permits that would allow operations to commence during the 2Q 2009.

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