ORBMINCO LIMITED — M&A Activity 2008

Jul 29, 2008

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30 July 2008

ASX ANNOUNCEMENT

SCHEME OF ARRANGEMENT EFFECTIVE

Monaro Mining NL (“Monaro”, the “Company” or “MRO”) is pleased to announce that further to the announcement on Thursday, 24 July 2008, Uranium King Limited (“UKL”) has lodged with the Australian Securities and Investments Commission ( ASIC ) a copy of the Court order of the Perth Registry of the Federal Court approving the Scheme of Arrangement between UKL and its shareholders relating to the merger of UKL and Monaro.

The Scheme of Arrangement is now legally effective and the scheme will be implemented on 12 August 2008 (please see ASX announcement dated 24 July 2008 for a detailed implementation timetable).

The board of directors of Monaro and UKL has been reconstituted to comprise:

• Warwick Grigor, Chairman

• Mart Rampe, Managing Director

• Malcolm James, Non-Executive Director

• Jim Malone, Non-Executive Director

• Michael Duncan, Non-Executive Director

• Greg Barns, Non-Executive Director

Mrs Anne Adaley is the Company Secretary of both Monaro and UKL.

In accordance with the Merger Implementation Agreement, Monaro will establish a Technical Advisory Panel to report to the Board. This Technical Advisory Panel will comprise a range of technical experts drawn from both companies and will be chaired by Dr Bernhard Free and will include Mr Sam Sapper and Mr Mart Rampe. Dr Bernhard Free and Mr Sam Sapper are former directors of UKL.

FURTHER INFORMATION

For further information please contact Mart Rampe, Managing Director, on +61 2 4647 9566 or Warwick Grigor, Chairman, on +61 2 9247 0077.

ABOUT MONARO MINING NL - BUILDING A SERIOUS URANIUM COMPANY

Monaro Mining NL is an Australian-based international exploration and pre-development company focusing on uranium. Its major assets include tenements in the Central Asian Kyrgyz Republic and Australia, with some of these holding potential for gold as well. Monaro aims to grow both through project acquisition and corporate initiatives such as the merger with Uranium King Limited. The Monaro shares are listed on the Australian Securities Exchange and the Frankfurt Stock Exchange and Monaro ADSs are eligible for OTC trading in the U.S.