Increased holding in Jupiter

Red Rock Resources plc
15 April 2008

                             RED ROCK RESOURCES PLC

                   Increased Holding in Jupiter Mines Limited





Dated: 15 April 2008



Red Rock Resources plc ('Red Rock' or the 'Company') the mineral exploration and
development company focused on advancing iron ore, uranium and manganese
projects in Australia and East Africa, announces that it has acquired 6,179,000
ordinary shares in Jupiter Mines Limited ('Jupiter') at a cost of AUD1,381,477
and now holds 10,796,178 ordinary shares in Jupiter amounting to 7.62% of the
outstanding share capital of Jupiter.



The Company also acquired for a consideration of one Australian dollar,
3,500,000 options exercisable into Jupiter ordinary shares at 20c per Jupiter
ordinary share at any time up to 20th May 2008.



Jupiter is a mineral exploration company listed on the Australian Stock Exchange
with stock code JMS. The Company first became a Jupiter shareholder when on 29th
May 2007 it announced that Jupiter had exercised an option to buy two of Red
Rock's iron ore tenements in Western Australia for a consideration of AUD
250,000, a 1.5% production royalty, and 4,617,178 new Jupiter shares.



Red Rock continues to pursue a strategy of working closely with other companies
planning to drill iron ore prospects in the Central Yilgarn of Western Australia
in order to stimulate fundraising for exploration, generate interest among
investors and potential partners, and promote what it regards as a necessary
integration of the various projects and interests.

Enquiries:
 Andrew Bell               0207 402 4580       Red Rock Resources plc             Chairman

                           or

                           07766 474849

John Simpson               020 7512 0191       Blomfield Corporate Finance Ltd     Nominated Adviser

Ron Marshman / John        020 7628 5518       City of London PR Limited           Public Relations
Greenhalgh

Updates on the Company's activities are regularly posted on its website,
www.rrrplc.com.


                      This information is provided by RNS
            The company news service from the London Stock Exchange