ORBMINCO LIMITED — Investor Presentation 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 Release

The Manager – Companies Australian Stock Exchange

Dear Sir

Re: Uranium Project Summary and Presentation – Uranium Conference in Fremantle July, 2007

Monaro Mining NL (MRO) is attending the Australian Uranium Conference being held at Fremantle, WA between 25[th] and 26[th] July, 2007.

Investors attending the conference will receive the following summary, which outlines the status of the Company’s uranium projects in the Kyrgyz Republic and Australia.

For further additional information about this presentation, please contact Mart Rampe on 02 46479566.

Yours Faithfully,

Mart Rampe Executive Director

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

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MONARO MINING NL

A Balance of Production Potential in Central Asia, and Big Picture Exploration in Australia

First Mover Advantage in the mineral rich Kyrgyz Republic

• Historical uranium mines

• Russian reserves

• Prospects of early production

• Favourable government attitude

Big picture exploration licences in WA, NT and QLD

• Team of experienced, mine-finding geological team

• Targeting unconformity and IOCG+U styles, >25,0000 t deposits

July 2007

ASX Code: MRO

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Corporate Philosophies

“The shareholders must win!”

• All shareholders are equal - no preferential groups

• Respect for risk capital - the investor must win!

• Need to be pragmatic and responsive to shareholder and market requirements, whilst balancing the need for a focused operational direction to ensure a growth path

• The market is the arbiter - junior companies should not be spending money on projects if the market is not prepared to replenish the kitty

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- Tight and Incentivising Capital Structure

Listed Securities (23/7/2007)

25.525 mill. fully paid shares 3.600 mill. July 2007, $1.20 options

Market Capitalisation

At $1.45 = $37.01m - undiluted

Unlisted Securities

1.80 mill. options - 60¢, 31/12/08 (to vendors of Kyrgyz assets) 1.05 mill. options - $1.07 and $1.75 (consultant and employee) 5.20 mill. ctg shares, 19.9¢ to pay (director’s incentive on IPO) Cash Balance 17[th] July 2007, $4.77m Placed 2 mill. shares at $1.50 in Dec ’06 July 2007 $1.20 options underwriting agreement executed

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Shareholders and Management

Top Five Shareholders (17/7/07)

1. ANZ Nominees 19.83% 2. Fortis Clearing Nominees 5.09% 3. Nikam Investments 5.17% 4. Gregorach Pty Ltd 4.00% 5. Citicorp Nominees Pty Ltd 3.70%

Top 20 Shareholders 57.23%

Directors/Management Warwick Grigor Mart Rampe Michael Evans Stephen McRobbie

Non Executive Chairman Executive Director Non Executive Director General Manager CIS/Europe

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Theatres of Operation

Kyrgyzstan

Australia

• Tradition of uranium mining

• Proximity to major regional processing centre at Kara-Balta

• Strategy is to identify and acquire world class deposits of uranium and gold mineralisation under cover

• 20% of known global recoverable resources in the Central Asian region

• Less stringent planning and environmental constraints

• Russian “reserves” of approximately 2,000 t U3O8 in C1 +C2 +P1

• No recycling of sub-economic uranium deposits – targeting large, undiscovered and concealed ore bodies fitting the unconformity and IOCG models

• 4,000 sq km of prospective ground in 3 states currently granted or under application

• Advanced exploration conducted by Soviet geologists but limited drilling

• Highly experienced technical team – track record of discovery

• Company income tax rate only 10%

• Active ground evaluation and acquisition program underway throughout Australia

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Kyrgyz Republic: Uranium and Gold Projects (100% owned licences)

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Aramsu Uranium - Regional

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• Aramsu deposit: 326 t U3O8 , C1 and C2 status

• Primary orebody - breccia-hosted mineralisation at granite-sediment contact

• Small high grade resource - average grade 0.167% U3O8 9.3% recovery oxide leach

• Trenching, adits to 70m depth

• 28 intersections in one area - true width 2.6m to 3.7m

• 9 Aramsu mine look-alike prospects to be explored within licence area

• Potential for ore body clusters

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ARAMSU Uranium – 3D Oblique Geology

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Aramsu
deposit
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ARAMSU Uranium – Plan Geology

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Aramsu Deposit – Plan view

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Inset: Cross Section View NW showing
mushroom shape of porphyry
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Aramsu Mine Workings – Isometric view

Sectional view (North) of Aramsu block model highlighting two plunge directions to higher grade shoots and the drill holes proposed to test the geology, grades and metallurgy of the deposit.

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Sogul Uranium

• 2100 metre scout drilling program completed

• Extensive uranium mineralisation demonstrated over 800-1000 metres strike length and down dip

• Assay data indicates values of around 100-200ppm uranium, some over good widths. Geology and structure is complex

• Outstanding assay data awaited prior to completion of progress report

• Next stage of exploration and drilling to be determined in September

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Sogul - Key deposit location

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TAJIKISTAN
TAJIKISTAN
Kok-Tube
Madygen Markush
Shruab
Sogul
Arpapaya
Chirakty
Akbulak Geraryk
Unnamed
UZBEKISTAN
Gavasai
UZBEKISTAN
TAJIKISTAN
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Sogul Uranium

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Outcrop of siliceous black shales and cherts

Drilling on the Sogul uranium prospect March 2007

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Sumsar Uranium

• Covers prospective part of the Northern Fergana uranium province, west of Naryn

• Potential for sandylimestone hosted uranium deposits

Prospects include:

• Shakaftar prospect features carnotite mineralisation in widths up to 2.5m and assays up to 0.4%, across a series of lenses

• Chonkal prospect features hydrothermally altered porphyries up to 10m in width, with assays up to 0.09% U3O8

• Ten’ga and Yangak-Sa prospects with uranium associated with intrusives

• Beds demonstrate high porosity and permeability (important for ISL)

• Assays of 0.077% to 0.165% U3O8 have been recorded

• Limited mining took place in the 1950s but few records available

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Utor Uranium

• Uranium mineralisation found in hydrothermally altered sandstones – potential for ISL

• Sandstone beds up to 20m thick have been mapped over a 10km strike

• Uranium mineralisation is found in lenses up to 10-12m wide in interbedded siltstones and sandstones

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• Adits have been sunk to 300m depths

• Assays generally range up to 0.08% U3O8 with exceptional zones drilled to provide up to 1% U3O8 and even 2.14% U3O8

• Analogous to styles found in Kazakhstan

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Naryn Uranium

• Covers the most prospective part of the Northern Fergana uranium province

• Underground mining conduced in late 1960s/early 1970s, but ISL wasn’t being employed at the time - so could be opportunity

• Parallel prospective beds outcrop for 27km - these are being mined in neighbouring Uzbekistan

• Main uranium minerals are pitchblende and uranium vanadate

• Small tonnage remain in-situ, grading 0.0570.96% U O 3 8

Uranium bearing stratigraphy in outcrop of prominent hill in background

• Semi-arid climate enables year-round access

• Malisu produced 3,362 t U3O8 at 0.089% U3O8 (not an asset of MRO)

• Multiple targets of 3-5,000 tonnes

Historical mine infrastructure from late 1960s - underground mining

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Djurasay and Hodjaakan Uranium and Gold

• Both considered to be prospective for black shale hosted, Carlin-style gold mineralisation enriched in Uranium

• Early in exploration program

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Project
location
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Australian uranium/gold prospects MRO Earning 75%

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• Granted ELs and applications cover over 4,000 sq km of ground prospective for gold and uranium

• Queensland (IOCG)

• Red Bull 1

• Savannah

• Fort Bowen

• Mount Brown

• Northern Territory (U,Au)

• Fog Bay

• Compass Creek

• Western Australia (U,Au)

• Coor-de-Wandy Hill

• Yalbra Hills

• Collins Springs

Location of Prospects Hapsburg ELA’s/EPA’s

• Granite Hills

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Mine-Finding Expertise

• Lee Spencer (MSc) – 30 years experience mining and exploration in Asia Pacific. Actively involved with gold, diamond and other mineral discoveries .

• and development projects in PNG, Indonesia, Australia and Philippines

• Mohan Varkey (MSc) – 36 yrs uranium/gold exploration and mining experience. Formerly senior exploration geologist for Urangesellschaft, CRA and Idemitsu. Discovery geologist of Narbalek deposit (U), and part of discovery teams for Cigar Lake (U) in Canada, and Ernest Henry (Cu, Au) deposit Australia

• David Bennett (BSc) – 34 years exploration and mining experience. Formerly exploration geologist with Minatome, Mobil Energy Minerals and Urangesellschaft. Former senior exploration geologist for Robertson Research. Independent consultant since 1982.

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Iron Oxide Copper Gold (IOCG)

Large ore bodies:

• Cu-U-Au associations

• Olympic Dam/Ernest Henry types

• Breccia type ore bodies in Proterozoic metasediments and volcanics

• IOCG discoveries in the Mt. Isa-Cloncurry region of Queensland include:

• Ernest Henry 167Mt at 1.1% Cu & 0.54g/t Au

• Osborne 15Mt at 3% Cu & 1.3g/t Au

• Selwyn 5Mt at 1.0% Cu & 5.0g/t Au

IOCG Features:

• Proximity to Palaeoproterozoic or Archean basement

• Sedimentation along cratonic margins or intracratonic belts

• Regional metamorphism of sediments and interlaid volcanics

• Volcanism and emplacement of batholiths establishing thermal gradients

• Intrusion of high temperature granitoids leading to brecciation, metasomatism, volume reduction and economic concentration of minerals

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Queensland - IOCG Targets

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Project
Location
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The regional magnetic map of Queensland shows a circular magnetic anomaly in the centre in the Millungera area. The centre of the feature is a magnetic low which could represent a granitic intrusion. The areas covered by EPA’s are interpreted as Archaean basement and are highs, considered prospective for gold and uranium at the Archaean unconformity, and/or granite contacts.

4 EPA’s COVERING 964 SQ KM

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North-West Queensland

• 8 tenements covering 2061 km[2]

• High priority IOCG targets identified by QLD Mines Department

• Combination of good structure, geology and geophysics

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Northern Territory: Unconformity Targets

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Fog Bay
Fog Bay - 77 sq km
Compass Creek
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EL 25406 (Fog Bay)

Early Proterozioc gneisses and marbles subcrop to the northeast. The target is unconformity controlled vein-type uranium/gold mineralisation. The Welltree Metamorphics is the dominant lithological unit and is intruded by the Wagaite Granite. The overlying Depot Creek Sandstone provides the classic unconformity model.

EL 25399 (Compass Creek)

The lithological succession is Burrell Creek Formation , Mt Bonney Formation and Gerowie Tuff . This succession has been intruded by Princes Springs Granite , Zamu Dolerite and numerous quartz veins. Exploration will be directed at gold-uranium mineralisation at the granite–sediment interface.

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Northern Territory: Unconformity Concept

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NARBALEK
RANGER,
EL 24506
KOONGARRA
RUM JUNGLE
FOG BAY & JABILUKA
MID-PROTEROZOIC
1800 MY Unconformity
Uranium Mineralisation
Unconformity
Fault
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Western Australia - Unconformity Targets

• All areas are situated along the southern margins of the Gascoyne Province

• Archaean and Paleoproterozoic gneisses and metasediments are present

• These are intruded by Paleoproterozoic granites coincident with major structures

• High energy fluviatile and shallow marine sediments of the Mount James Formation unconformably overlie the Paleoproterozoic gneisses and metasediments

• All areas have the potential to host Unconformity related uranium and gold mineralisation

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Western Australia - Unconformity Targets

Kintyre Uranium Unconformity Targets Tenement Details Project Collins Spring 547 sq km (E09/1331) Location Coor-de-wandy Hills 608 sq km (E09/1333) Yalbra Hill 429 sq km (E09/1336) Granite Hills 365 sq km (E09/1345) Total Area 1,949 sq km The tenements are located entirely within the Gascoyne Basin, and target Proterozoic metasediments of the Mt James Formation which are intruded by Proterozoic late-stage granitoids Yeelirrie coincident with major structures. Uranium

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What Distinguishes Monaro?

• Balance of production opportunity and exploration upside

• Highly qualified, proven geological team

• Low market capitalisation relative to peers

• Healthy, but not ridiculous share price movements

• Not a life-style company for directors

• Healthy cash balance

• Money going into the ground

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Pending News Flow for Monaro

• Drill results for Djal-Kokildak Au/Cu

• Commencement of drilling at Aramsu in August

• Developing relationship with Chinese uranium specialists

• Assess projects in Europe, Africa and North America

• Granting of Australian uranium licences and commencement of work

• Drilling copper/zinc target in NSW in JV with Ironbark Gold Ltd

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Disclaimer

• All persons should seek appropriate professional investment advice in reviewing or considering this presentation and all other information with respect to Monaro Mining’s business, financial performance and operations. Neither the provision of this presentation nor the information contained therein, or any associated communication to any person should be taken as constituting financial advice regarding the the purchase or dealing of shares in Monaro Mining NL. This presentation does not purport to provide all information that might reasonably be required to complete a detailed assessment of Monaro Mining. Individuals should conduct their own investigation of investment and financial parameters relevant to their personal requirements for investment purposes.

• The presentation may contain forward looking statements regarding the intentions of the Company, and these will be affected movements in share markets, commodity prices and many other factors beyond the control of Company personnel. The presentation must be considered in the light of these uncertainties and investments in Monaro Mining NL should be considered as speculative in nature.

• The presentation is not a prospectus or similar disclosure document and does not constitute an invitation to apply for shares.

• Competent Person The review of exploration activities and results contained in this presentation in relation to the NSW projects is based on information compiled by Mr Mart Rampe , a Member of the Australasian Institute of Mining and Metallurgy. He is a director of the Company and a full time employee of Harvest Exploration Pty Ltd. He has sufficient experience which is relevant to the style of mineralisation and types of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the December 2004 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code). Mart Rampe consents to the inclusion of this information in the form and context in which it appears in this report.

• The review of exploration activities and results contained in this report in relation to the Kyrgyz Republic projects is based on information compiled by Steve McRobbi e, a Member of the Australasian Institute of Mining and Metallurgy. He is a full time employee of the Company and has sufficient experience which is relevant to the style of mineralisation and types of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the December 2004 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code). Steve McRobbie consents to the inclusion of this information in the form and context in which it appears in this report.