ORBMINCO LIMITED — Capital/Financing Update 2007

Jul 23, 2007

MONARO MINING NL ABN: 99 073 155 781

Tel: +61 2 4647 9566 Fax: +61 2 4647 7332 All Correspondence to: PO Box 427 Narellan NSW 2567

24[th] July, 2007

ASX Announcement

The Manager – Companies Australian Stock Exchange

Dear Sir,

Re: Exercise of July 31, 2007 Options (MROO)

Please be advised that the above options will cease trading at 4 pm EST Tuesday 24[th] July 2007 but can be exercised by no later than 5 pm EST on Tuesday 31 July 2007.

For further additional information about this matter, please contact Anne Adaley on 02 90898860 or Mart Rampe on 02 46479566.

Yours Faithfully,

Mart Rampe Executive Director

NARELLAN NSW 2567 Email: info@monaromining.com.au