POS Polar Star Mining (Tier2)

Polar Star Mining Corporation (TSX VENTURE: PSR)(TSX VENTURE: POS) ("Polar Star" or the "Company") is pleased to announce that effective today, the Company's stock ticker symbol will change to PSR, replacing the former ticker symbol, POS. Shareholders are advised to take note of this change. Shareholders are not required to take any action with respect to this change. For more information, visit: www.polarstarmining.com.

About Polar Star

Polar Star was created to acquire advanced stage exploration properties focusing on gold, copper-gold, and uranium. The Corporation's material assets include 20 projects in Chile, which are 100% owned and cover approximately 146,112 hectares. HudBay Minerals Inc. acquired 3,860,605 shares of Polar Star in July 2008 which represents approximately 9.8% of the outstanding shares of the Company.

Forward-Looking Statements

The statements made in this news release may contain forward-looking statements that may involve a number of risks and uncertainties. Actual events or results could differ materially from the Company's expectations and projections. Accordingly, readers should not place undue reliance on forward-looking statements. For a more detailed discussion of such risks and other factors, refer to Polar Star Mining Corporation's filings with Canadian securities regulators available on www.sedar.com or the Company's website at www.polarstarmining.com.

Share Capitalization:

Shares Outstanding: 39,241,098 as at January 20, 2009.

Business Television Feature:

Polar Star was selected and featured on Business Television in early December 2008. If you missed the show, please click on the link below to watch the full-feature www.b-tv.com/features/watch-now.html?clip=BNNpolarstarmining.wmv.

The Toronto Stock Exchange Venture has not reviewed and does not accept responsibility for the adequacy or accuracy of this release and the information contained herein.

Contacts: Polar Star Mining Corporation Douglas Willock President and CEO (416) 368-3496 Email: info@polarstarmining.com Website: www.polarstarmining.com