[PPT] - TriAusMin TriAusMin Tri Origin Minerals Ltd. Tri Origin Minerals PowerPoint Presentation

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TriAusMin TriAusMin

Tri Origin Minerals Ltd. Tri Origin Minerals Ltd. Corporate Overview Corporate Overview

TSX: TOR TSX: TOR June 2010 June 2010 ASX: TRO ASX: TRO

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Disclaimer

The Information contained in this presentation has been prepared using the information available to TriAusMin at the time of preparation. This presentation contains forward-looking statements that were based on expectations, estimates and projections as of the date of this presentation. Any forward-looking statement is subject to known and unknown factors which may cause actual results and developments to materially differ from those expressed by, or implied by the forward-looking statements in this presentation. External or other factors may have impacted on the business of TriAusMin and the content of this presentation since its preparation. TriAusMin does not undertake to update any forward-looking statements that are contained in this presentation, except in accordance with applicable securities

laws. In addition, this presentation may not include all relevant information regarding TriAusMin.

TriAusMin has taken all reasonable care in preparation of this presentation. However, the content

f this presentation should not be relied upon in relation to any further action including investment

in TriAusMin. Any person considering an investment in TriAusMin is advised to obtain independent financial advice prior to making an investment decision. Nothing in this presentation should be construed as to constitute an offer, invitation or recommendation to subscribe for, sell or purchase any security in any jurisdiction. Further information about TriAusMin is available at: www.triausmin.com

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Overview

TriAusMin – the registered Canadian trading name of Tri Origin Minerals Ltd is an Australian base and precious metals exploration company with assets located in the Lachlan Fold Belt of New South Wales. TriAusMin recently listed on the TSX (TOR) and continues to be listed on the ASX (TRO).

Strong land position with 70,300 hectares of leases in highly prospective Lachlan Fold

Belt – a world class gold and base metals province

Significant but undervalued resources delineated at Woodlawn and Lewis Ponds
Near term exploration upside potential from drilling for resource extensions and

repetitions of known deposits at both Woodlawn and Lewis Ponds

Positive economic return indicated from completed Feasibility Study at the Woodlawn

Retreatment Project

Corporate restructuring completed to improve shareholder value

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Corporate History

Incorporated in 1993 in New South Wales as wholly owned subsidiary of Tri

Origin Exploration Ltd (“TOE”)

Listed on the ASX in 2004 (ASX: TRO)
On January 22, 2010, shares listed on TSX (TSX: TOR); trading as

TriAusMin

Listing will provide access to the world’s leading stock exchange for junior

mining companies

TOR has a solid following in the Canadian market through TOE’s ownership

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Capital Structure

Shares outstanding: 116,724,734
Tri Origin Exploration owns 25% of TriAusMin (“TOR”)
Market Capitalization as at June 9, 2010: A$ 8.2 million
Share structure:
Australian registry

~53 million (45%)

Canadian registry

~35 million (30%)

Tri Origin Exploration Ltd. (“TOE”)

~29 million (25%) Total ~117 million (100%)

Net available cash A$ 0.85 million*

*As of March 31, 2010

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Board & Management

William Killinger AM, Chairman

Co-Founder of Minproc Engineers Engineer with over 40 years experience with international engineering firms

Dr. Robert Valliant, Executive Director and CEO

Co-Founder of TOE and TRO Formerly VP Exploration LAC Minerals Ltd

Jeffrey Quartermaine, Director

CPA and has held senior finance roles within a number of ASX listed resources companies

Alan Snowden ICD.D, Director

Over 30 years experience in Canadian and International financial markets and was Director of Western Canada for BMO Nesbitt Burns

Calin Scott, CFO and Company Secretary

Former Manager, Mining & Energy Services PKF (Sydney)

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The Lachlan Fold Belt:

A world-class mineral province

AGSO, 2005

Major producer of gold, copper,

lead, zinc and silver

International mining firms

including Barrick Gold Corp., Newmont Mining Corporation, Newcrest Mining Limited and Goldfields Limited have an active presence in the belt

Largely under-explored using

modern exploration techniques Lachlan Fold Belt

New England Fold Belt

TRO Projects

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Major Mineral Assets in the Lachlan Fold Belt

Woodlawn Mining District (100%
wned)
Woodlawn Underground

Resource

Woodlawn Tailings Retreatment
Exploration leases and claims

total an area of 55,000 hectares

Lewis Ponds Project (100% owned)
Exploration leases and claims

total an area of 7,300 hectares

Portfolio of prospective exploration

tenements throughout Lachlan Fold Belt

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Woodlawn has a Significant Mining History

OPEN CUT

Located 200km SW of Sydney
TRO controls mineral rights to an extensive land position at Woodlawn including the past-producing

Woodlawn mine (mill has been dismantled)

Woodlawn district produced ~13 million tonnes of copper/zinc/silver/gold ore from 1978 to 1998

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Underground Mineral Resource

Woodlawn Block Model – Looking North West

Note: Based on 7% zinc equivalent cut-off grade

Woodlawn Underground - Resources Category Tonnes Gold Silver Copper Lead Zinc Gold Silver Copper Lead Zinc

('000)

(g/t) (g/t) (%) (%) (%) ('000 oz) ('000 oz) ('000 lb) ('000 lb) ('000 lb) Measured 3,600 0.5 85 1.80% 4.00% 10.40% 61 9,838 142,860 317,466 825,411 Indicated 5,000 0.6 84 1.80% 4.00% 10.20% 88 13,503 198,416 440,925 1,124,358 Measured & Indicated 8,600 0.5 84 1.80% 4.00% 10.28% 150 23,341 341,276 758,390 1,949,768 Inferred 1,500 0.6 87 1.70% 4.10% 9.60% 29 4,196 56,218 135,584 317,466 Contained Metal Grade

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Main System Long Section and Targets

Projected down plunge continuation of mined ore bodies Deep drill hole target

Previous mining extended to only

600 m below surface

8 Mt extracted from open pit (to

200m depth)

5 Mt extracted from underground

(200 to 600m depth)

10 Mt remain in resource (200 to

600m depth)

Historic deposit totals 23 Mt to

600m depth and is open at depth

Minimum Target = additional ~3 Mt

(100-200m depth extension to known deposit)

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Cross Section 19280N

Woodlawn Mine Woodlawn Mine Cross Section Cross Section

Conceptual drill hole to test ore lenses

Historic open pit

Ore lenses remain open at

depth and along strike

Geological evaluation of drill

hole data indicates that deposits extend to greater depths

Drilling is targeted to

intersect these extensions

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Tailings Re-treatment Project

North Dam 3.1Mt South Dam 4.5Mt West Dam 4.1Mt

Feasibility study examining

potential to re-treat tailings remaining from previous mining released in June 2008

Positive feasibility study

results summarized and updated NI 43-101 technical report completed December 2009

Pre-tax NPV (8%) is

A$68 million (1)

After-tax IRR is 23% (1)

(1) Weighted average Bloomberg Long term Consensus Prices as published on Feb 19, 2010: Gold US$1,113/oz, Silver US$16.34oz, Zinc US$2,146/tonne, Copper US$5,464/tonne and Lead US$1,711/tonne; AUD:USD Exchange Rate = 0.80

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Tailings Mineral Resource & Reserve

Total Resource converted to an Ore Reserve of 11.2 Mt grading 2.2% zinc, 1.3% lead, 0.5% copper, 0.3g/t gold and 32g/t silver 1

Note: 1 – JORC and CIM standard compliant – see full technical report dated December 15, 2009

Woodlawn Tailings - Resource Category Tonnes Gold Silver Copper Lead Zinc Gold Silver Copper Lead Zinc

('000)

(g/t) (g/t) (%) (%) (%) ('000 oz) ('000 oz) ('000 lb) ('000 lb) ('000 lb) Measured 5,300 0.3 31 0.50% 1.30% 2.30% 51 5,282 58,422 151,898 268,743 Indicated 4,100 0.3 34 0.50% 1.40% 2.30% 40 4,482 45,195 126,545 207,896 Measured & Indicated 9,400 0.3 32 0.50% 1.34% 2.30% 91 9,764 103,617 278,444 476,639 Inferred 2,300 0.3 31 0.40% 1.30% 2.10% 22 2,292 20,283 65,918 106,483 Grade Contained Metal

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Re-treatment Project Economic Summary

Independent 43-101 Technical Report by Scott Wilson Roscoe Postle Associates Inc. (December 15, 2009)

Estimated 7.7 year life at 1.5 Mtpa milling rate
Average annual payable production of 37 million lbs of zinc, 7 million lbs
f copper, 7 million lbs of lead, 2,000 ounces of gold and 371,000 ounces
f silver
Total payable production of 560,000 tonnes of zinc, copper and lead

concentrates containing 125,000 tonnes of zinc, 24,000 tonnes of copper, 25,000 tonnes of lead, 18,000 ounces of gold and 2.8 million ounces of silver

Development capital ~ A$75 million
Pre-tax NPV at 8% is A$68 million at long term metal prices(1)
Internal rate of return is 23% after-tax(1)

Notes: 1 – Weighted average Bloomberg Long term Consensus Prices as published on Feb 19, 2010: Gold US$1,113/oz, Silver US$16.34oz, Zinc US$2,146/tonne, Copper US$5,464/tonne and Lead US$1,711/tonne; AUD:USD Exchange Rate = 0.80

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Proposed Mining Method – Hydraulic Mining

Example Of Hydraulic Mining

Simple & Cost Effective Method

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Woodlawn Infrastructure and Project Setting

Land use agreements have been finalized
Site serviced by grid electricity
Sealed highways to site
Rail access to Ports Botany & Kembla approximately 10km from Woodlawn
Adequate water supply, skilled workforce & supportive community
Right to transfer existing Mining Lease – government approval process underway
Director General’s requirements for draft Environmental Approval have been met

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Woodlawn Exploration Program

Priority drill targets

Large land position and rights

to existing mining lease 100% held

Regional exploration potential

is highlighted by the past producing Woodlawn and other mines in the district

Prospects have been identified

for further drilling