Technical Report - Quarter Ended 31 March, 2006
1.0 SUMMARY & COMMENTS
Macmin Silver Ltd (Macmin) is a silver focused company whose primary project is the Texas Silver Project, S.E. Queensland, Australia. Macmin has exposure to gold by way of an 18% equity in New Guinea Gold Corporation (NGG) and a 1% NSR royalty on production by NGG. In addition, Macmin maintains equity investments in junior Australian explorers, Malachite Resources NL and TasGold Ltd.
  • Construction progress at Twin Hills has advanced significantly during the quarter as the company prepares for plant commissioning in the third quarter and thence production commencement.
    • Topsoil stripping was completed over the pit area with topsoil being stockpiled for future rehabilitation.
    • Electrometals Technologies Ltd engineers are currently installing the 180 cell electro-winning circuit (EM-EW).
    • Installation of the crushing circuit and overland conveyors is in progress and well advanced.
  • A pre-feasibility study of the Silver Spur slag is underway in conjunction with an evaluation of the underground resource.
  • A review of the total resources of the Texas Project is being undertaken in light of the rising silver price.
  • Drilling is currently in progress on the Rivertree Project.
  • A private placement in March raised approximately $6 million.
  • New Guinea Gold, in which Macmin holds 18% equity interest, raised $7 million to fund development and exploration.
2.0 TEXAS SILVER MINES PTY LTD
The Texas Project (EPMs 8854, 11455, and 12858; ML 5932 and ML 50161) is located 100km west of Stanthorpe. Texas Silver Mines Pty Ltd is a wholly owned subsidiary of Macmin Silver Ltd.

2.1 Twin Hills (ML 50161) - Development Activities
Construction progress at Twin Hills has advanced significantly during the quarter, as the company prepares for silver production. Minor delays have been encountered in having technical consultants on site, in scheduled time-frames, due to the current ‘heavy demand' for their services in the engineering and mining industries. The construction of the storm containment dam is taking longer than scheduled, due to additional unforeseen engineering ‘input' in the preparation of the ‘key-way' in the floor of the dam. These delays have meant that commissioning of the crushing circuit and electro-winning plant is now scheduled for the July/August period with production commencing thereafter.

A brief summary on the status of site activities is as follows:
  • Topsoil stripping was carried out over the major part of the open pit area during the quarter. The topsoil is being stock-piled for future rehabilitation work on site.
  • The bulk of the grade control drilling for the top 15m of the deposit was completed during the quarter. An initial blast of waste material was undertaken to assess its suitability for use in constructing the storm containment dam.
  • A storm containment dam is required to collect overflow from the process area in case of a major storm event (100 year event). The dam construction and completion is subject to approval by the Environmental Protection Agency (EPA). The storm containment dam is undergoing construction with the ‘key-way' in the floor of the dam, beneath the proposed dam wall, being prepared (i.e. grouting of weak points in the bedrock floor/walls), prior to the dam wall construction taking place. Successful compaction tests have been carried out on the clay, which will be used in the wall. Several metres of clay have been laid and compacted in the key-way. Coarse rock to construct the exterior of the walls is to be sourced from rock blasted within the dam containment area, which has the added benefit of providing increased storage area within the dam.
  • The crushing circuit installation is well advanced, with much of the ‘fixed' plant in place. The agglomerator has been installed and the ‘overland' conveyor is nearing completion. The ‘grasshopper' conveyors are also currently under assembly on site.
  • The electro-winning circuit (EM-EW) is currently under installation by engineers from Electrometals Technologies Ltd. The 180 cell plant will produce silver powder from the heap leach solutions. The building housing the EM-EW circuit is largely completed and is situated beside the leach ponds (reference photos - Macmin website: www.macmin.com.au).

2.2 Exploration
  • In March the company purchased the Investigator MK IV drill rig from Roger Hall Drilling Pty Ltd. This truck mounted rig, with both percussion and diamond drilling capabilities, has been the mainstay of our drilling effort within the Texas project area over the last ten years. Roger Hall is currently training a driller to take over the rig and Roger will maintain an association with the company as a drilling adviser/consultant.
  • A programme of Reverse Circulation (RC) drilling is underway at the Rivertree Project, north east of Tenterfield in northern New South Wales. The Rivertree project forms part of a joint venture agreement with Malachite Resources NL. Drilling has been completed at the Silver King and Spring Gully lodes and is currently underway on the Big Block lode. Assay results are expected in May.

2.3 Silver Spur
The Silver Spur mining lease is located about 1.5 km south-east of the Twin Hills silver mine. A pre-feasibility study is currently in progress to obtain the optimum route to follow to extract value from the Silver Spur slag dump. A survey and mapping programme of the slag stockpiles indicates that approximately 60,000 tonnes is present. A large bulk sampling programme was undertaken to obtain representative samples for chemical analysis. Samples were forwarded to ALS-Chemex in Brisbane for testing and provided the following assays: Zinc 12.7%; Silver 140.5g/t.

Studies for processing routes currently under consideration include smelt fuming, heap leaching and flotation. Updates on the progress of this work will be made available as they come to hand.
An extensive programme of drilling by previous mining lease holder, Rimfire Pacific Ltd, at the historic Silver Spur mine resulted in the definition of the following in-situ resource. At a 7% zinc equivalent cut-off Combined Indicated and Inferred Resources of 369,000 tonnes at 6.47% zinc, 5.79oz/t silver, 2.89% lead and 0.35% copper and 0.26g/t gold.

A mineralisation model is being compiled by an independent consultant to determine how to explore the remnant mineralisation and its possible further extensions. An evaluation of the possibility of extracting the remnant zinc ore from the mine will also be undertaken.

The following releases were made to ASX in the first quarter of 2006:

23 February 2006
"TEXAS SILVER PROJECT UPDATE

Twin Hills Silver Mine

Progress towards silver production is well advanced.

  • Topsoil stripping has commenced in mid-February over part of the open pit at the Twin Hills Silver Mine . The topsoil is being stockpiled for future rehabilitation work on site. Grade control drilling for the first two mining benches will be completed by the end of February.
  • The electro-winning circuit (EM-EW) is currently under installation by engineers from Electrometals Technologies Ltd. The 180 cell plant will produce silver powder from the leach solutions, which drain the heaps. The building housing the EM-EW circuit is currently under construction and is situated beside the leach ponds (reference photos - Macmin website - www.macmin.com.au).
  • The concrete foundations for the crushing circuit have been laid and installation will commence on the 27th February. As was mentioned in the January Quarterly Report, the non-delivery of a cone crusher from a UK manufacturer after a five month delay resulted in the cancellation of the order and a replacement unit sourced and delivered to site in January. The replacement cone crusher has now been commissioned by the supplier.
  • Installation of the power plants for both the crushing circuit and the processing circuit will commence in March.
  • A storm containment dam is required to collect overflow from the process area in the event of a major storm event (100 year event). The dam construction and completion is subject to approval by the Environmental Protection Agency (EPA). The storm containment dam is undergoing construction with the ‘key-way' in the floor of the dam, beneath the proposed dam wall, being prepared (i.e. grouting of weak points in the bedrock floor/walls), prior to the dam wall construction taking place. Successful compaction tests have been carried on the clay, which will be used in the wall. Coarse rock to construct the exterior of the walls will be sourced from the waste rock to be blasted prior to the start of mining of ore at Twin Hills. Continual intermittent rain since November 2005 has impeded the dam construction and continues to do so. The rainfall however has replenished water supplies in dam storage and in the subsurface aquifers.
  • The current schedule sees the crushing circuit assembled and ready for commissioning in April and the agglomerator and stacking conveyors assembled and commissioned in May. Heap construction will commence soon thereafter.
The current production plan proposed in the Mining Feasibility Study indicated that 2.5 million ounces of silver equivalent would be achieved from the first year of full production from the heap leach and dump leach operation.

As the price of silver has continued to increase since the completion of the Feasibility Study, a further review will be undertaken by an outside consultant to determine whether by lowering the cut-off grade for silver, more tonnage might be available to increase the production rate (possibly up to four (4) million ounces AgE per annum).

Silver Spur

The Silver Spur mining lease is located about 1.5km south east of the Twin Hills mine.
  • Slag

    Macmin has initiated a pre-feasibility study to determine the optimum route to follow to extract value from the Silver Spur slag dump, in light of the continuing rise in the price of metals, particularly zinc. In 1997 Rimfire Pacific Ltd (the previous holder of the Mining Lease) sampled the slag dump and estimated that 90,000 tonnes was present. Semi bulk samples gave an average grade of 15.8% zinc, 158g/t silver, 3.17% lead, 0.34% copper and 0.5g/t gold.


    The pre-feasibility study will examine the following avenues and make recommendations:

    1. The leachability of the slag, with possible treatment on the Twin Hills Mine lease;
    2. The shipping of slag to smelters inside/outside Australia
    3. The outright sale of slag to third parties.
  • Underground Resource
    An extensive programme of drilling by Rimfire Pacific Ltd at the historic Silver Spur mine resulted in the definition of the following in-situ resource. At a 7% zinc equivalent cut-off Combined Indicated and Inferred Resources of 369,000 tonnes at 6.47% zinc, 5.79oz/t silver, 2.89% lead and 0.35% copper and 0.26g/t gold.

    A mineralisation model is being compiled by an independent consultant to determine how to explore the remnant mineralisation and its possible further extensions. An evaluation of the possibility of extracting the remnant zinc ore from the mine will also be undertaken."

16th March 2006
"MACMIN STARTS DRILLING AT RIVERTREE PROJECT
Macmin Silver Ltd (Macmin) advises that a drilling programme comprising 2,300 metres of reverse circulation (RC) drilling has commenced at the Rivertree Project, north-east of Tenterfield in northern New South Wales. The Rivertree Project forms part of a Joint Venture Agreement with Malachite Resources NL (Malachite) whereby Macmin can increase its interest from 60% to 75% interest by funding on-going exploration of $500,000 by November 2007.


The Rivertree silver field was discovered in 1887 and underground mines were established at Wongabah and Silver King, with extensive shafts, adits and pits also developed at Boulder-Dunlop. The Rivertree veins, typically composed of quartz and polymetallic sulphide, are usually narrow (up to 1.8m in width) but often persistent along the strike.

Sampling of historic mine dump material by Malachite personnel returned very high grade silver values (up to 1,150g/t silver) and zinc values (up to 24.4% zinc). A limited programme of RC and diamond drilling was carried out by Malachite in 2003 and 2004 at Wongabah, Silver King and Dunlop. It was reported that most of the holes intersected mineralised veining and/or alteration in discrete lode structures up to 4m in width, but only two (2) holes intersected potentially economic grades of silver mineralisation. At Wongabah, a narrow massive sulphide vein was encountered which assayed 755g/t silver and 3.0g/t gold. At Silver King, the best intercept was 1m at 291g/t silver and 0.17g/t gold.

Macmin's drilling programme will focus on the Silver King and Spring Gully lodes which are hosted by the Rivertree Granite. Drilling will also be undertaken on the previously untested Big Block lode hosted by the Razorback Creek Mudstone, where dump sampling by Malachite had given silver assays of up to 1,150g/t and zinc assays to 8.4%.

It is anticipated the programme should be completed before the end of April."

7th April 2006
"MACMIN PURCHASES DRILL RIG
Macmin has finalised the purchase of a truck-mounted drilling rig (Investigator Mark IV) which has percussion and diamond drilling capabilities. The rig, purchased from Roger Hall Drilling Pty Ltd, has been the mainstay of our drilling effort around the Twin Hills silver deposit and Texas silver project over the last ten years.


Roger Hall, currently training a company employee as a driller, will maintain an association with Macmin Silver Ltd as a drilling consultant.

During 2006, the rig has been carrying out grade control drilling over the Twin Hills silver deposit prior to mining. Once this programme is completed, it will be utilised on further resource definition drilling at Twin Hills and on other areas within the Texas project."
3.0 CORPORATE
3.1 Private Placement
A private placement to raise approximately $6 million was completed on March 16 to be applied towards the company's development and exploration activities.

The following releases were made to ASX in the first quarter of 2006:

14th February 2006
"AvW INVEST AG PURCHASES 1.5% INTEREST IN MACMIN SILVER LTD

Austrian listed investment company AvW Invest AG has purchased a 1.5% interest, on market, in Macmin Silver Ltd at a cost of approximately AUD$1 million dollars.

AvW Invest AG is a company of the AvW Group (www.avw.at) listed on the Vienna Stock Exchange in the ATX Prime Market. The company specialises in the field of financial services, participations and real estate."

6th March 2006
"PRIVATE PLACEMENT

The Company has reached agreement to raise approximately $6M through a private placement to a number of professional investors. The terms of the placement are 1 share and ½ option at 36 cents. Subject to receipt of cleared funds, the placement is expected to be completed by the end of this week.

These funds will be used for working capital at the Twin Hills Silver Mine once production starts up from mid-year. Also, an expanded exploration programme will be initiated on the Company's silver prospects, along with evaluation of other silver resource opportunities with the aim of adding to the silver resource base of Macmin Silver Ltd.

These funds see the cash balance of the Company stand at approximately $11.5M. Additional access to funding remains in place via the Cornell equity facility where a further $8.6M drawdown remains from the original $10M negotiated in 2003."
4.0 INVESTMENTS
Macmin maintains equity investments in the following public companies with exposure to the precious and base metals sectors. Information and releases about these companies' activities can be found on each company's website.
Company
Shares
Options
Market Value
31 March 2006
New Guinea Gold Corporation (TSX)
www.newguineagold.ca
17,847,020
-
$9,100,000
Malachite Resources NL
www.malachite.com.au
1,500,000
-
$230,000
TasGold Ltd
www.tasgold.com.au
3,364,824
3,104,167
$480,000
5.0 NEW GUINEA GOLD
The following Press Release of First Quarter highlights of New Guinea Gold Corporation was released on April 11 in Vancouver, Canada.

"FIRST QUARTER HIGHLIGHTS

Vancouver, April 18, 2006. In the first quarter of 2006, New Guinea Gold (NGG: TSX-V) reached a series of important milestones. These included:

  • Announcement of resource estimates and the completion of a Preliminary Assessment for the Sinivit Gold project. Sinivit is scheduled to go into production by mid-year 2006 and to produce 35,000 ounces of gold at an estimated cash cost of US$120 per ounce in its first year.
  • Successful completion of a $7 million private placement to fund development and exploration.
  • Start of new drilling to define resources at the Imwauna gold project
  • Start of new drilling to define resources at the Mount Penck gold project and release of soil sampling data
  • Identification of new gold mineralized zone at the Bismark gold project
  • PDAC interview with Smartstox analyst Stanlie Hunt (available on the NGG website- wwwnewguineagold.ca)
  • Drilling at the Weioko gold project intersected 4m grading 2.69 g/t Au
  • Presentation to the Asia Mining Congress in Singapore, Asia's most strategic platform where CEOs from mining companies, regulators, financers and investors congregate to discuss new business opportunities in Asia.
  • At Mt Nakru, a new area of gold mineralization has been encountered to the northwest of previously defined copper and gold mineralization. Separate trench intersections included 55m @ 4.79g/t gold including 15m @ 16.01g/t gold, and 15m @ 1.86g/t gold.
  • An Independent NI 43-101 Report on the Simuku porphyry copper/molybdenum/gold property in Papua New Guinea has been completed and filed on Sedar. The report defines drill targets and recommends an interim exploration program (mainly drilling) to evaluate the potential of the property. Copper, molybdenum and gold mineralization are discontinuously present over an area of at least5km by 2.2km.
"We're very pleased with our progress in the first quarter," said Chairman and CEO Bob McNeil. Our first mine, Sinivit is on schedule to begin production mid-year, we've re-started drilling on a number of key projects, and since year end, NGG's market cap has increased by a factor of four to about CAD $50M. We look forward to updating investors on developments in the second quarter.""

D.M. O'Neill
MANAGING DIRECTOR
This report is based on & accurately reflectsinformation compiled by a competent personas defined in Appendix 5A of the ASX Listing Rules

APPENDIX 5B

Appendix 5B
Appendix 5B
Appendix 5B
Appendix 5B
Appendix 5B