Form 20-F o | Form 40-F þ |
Yes: o | No: þ |
IVANHOE MINES LTD. |
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Date: September 21, 2005 | By: | /s/ Beverly A. Bartlett | ||
BEVERLY A. BARTLETT | ||||
Corporate Secretary | ||||
1. | NAME AND ADDRESS OF COMPANY |
Ivanhoe Mines Ltd. (the Company) World Trade Centre Suite 654 999 Canada Place Vancouver, British Columbia V6C 3E1 |
2. | DATE OF MATERIAL CHANGE |
September 16, 2005 |
3. | NEWS RELEASE |
The news release was issued on September 16, 2005 and disseminated through the facilities of recognized newswire services. |
4. | SUMMARY OF MATERIAL CHANGE |
The Company has received an initial resource estimate for its Nariin Sukhait coal project in southern Mongolia. Based on the estimate, the project contains measured and indicated coal resources of approximately 72 million tonnes, with an additional inferred coal resource of approximately 26 million tonnes. The independent estimates were prepared by Norwest Corporation, of Salt Lake City, USA under the supervision of Mr. Steven B. Kerr, Senior Geologist. Mr. Kerr is a Qualified Person as defined by National Instrument 43-101. |
5. | FULL DESCRIPTION OF MATERIAL CHANGE |
The Company has received an initial resource estimate for its Nariin Sukhait coal project in southern Mongolia. Based on the estimate, the project contains measured and indicated coal resources of approximately 72 million tonnes, with an additional inferred coal resource of approximately 26 million tonnes. These resources, which were discovered and delineated in only seven months of drilling this year, are considered to be of immediate interest as surface open-pit deposits that are amenable to near-term production for potential buyers in Chinese markets. | ||
Initial coal-quality testing ranks the Nariin Sukhait coal as high-volatile bituminous under American Society for Testing and Materials (ASTM) standards. The Nariin Sukhait coal project is located approximately 40 kilometres north of the Mongolia-China border and the shipping terminus for a newly constructed, 450-kilometre Chinese rail line that is expected to be operational into the border area by the end of this year. | ||
The independent estimates were prepared by Norwest Corporation, of Salt Lake City, |
USA. The Nariin Sukhait resource estimates were prepared in accordance with Canadian Institute of Mining Standards and the requirements set out in National Instrument 43-101, and were based on drilling completed prior to August 9, 2005. The Company plans to file an independent technical report supporting the resource estimate on SEDAR within 30 days. Table 1 below summarizes the estimated resources in respect of the Nariin Sukhait coal project. Resources that are not reserves do not have demonstrated economic value. |
Area | ASTM Group | In-Place Resources (000 Tonnes) | ||||||||||||||
Measured | Indicated | Inferred | ||||||||||||||
South Field |
High- | 6,678 | 7,126 | 11,128 | ||||||||||||
East Field |
Volatile | 14,978 | 9,906 | 10,752 | ||||||||||||
West Field |
Bituminous | 20,575 | 12,835 | 4,009 | ||||||||||||
Total |
72,098 |
25,889 | ||||||||||||||
The Companys Nariin Sukhait coal project is adjacent to, and surrounds, the MAK Nariin Sukhait Mine, operated by the MAK-Qin Hua Mongolian/Chinese joint venture. The MAK Mine, which has been supplying high-rank, low-ash, low-sulphur coal to Chinese consumers since 2003, has a reported production capacity of two million tonnes per year of thermal and blend-coking coal from two operating open-pits. |
The Nariin Sukhait coal field consists of very thick multiple seams, with individual seam thicknesses up to 60 metres. The Company has been using a multi-faceted approach in its exploration program, employing field mapping, surface-resistivity geophysics, trenching and drilling to identify coal resources. The primary goal of the program was to delineate an initial coal resource of between 50 and 100 million tonnes, sufficient to commence a commercial mine operation with annual coal production of between two and five million tonnes for export to China. |
To date, the Company has spent approximately US$4.5 million on exploration at Nariin Sukhait, representing 6 cents (US) per tonne of measured and indicated resources discovered to date. |
The Companys initial exploration was focused on the South, East and West Fields, which are adjacent to the MAK mining lease. The program subsequently has expanded to several other areas of interest within the 4,155-square-kilometre exploration tenements that the Company controls surrounding the MAK Nariin Sukhait Mine. As of August 9, 2005, the Company had completed 245 drill holes on the Nariin Sukhait property. A total of 146 holes had been completed within the South, East, and West Fields. Norwest expects that approximately 90 more holes will be drilled before the completion of this seasons drill program at the end of October, 2005. Norwest then will update the current resource estimates for the South, East, and West Fields. |
The South and East Fields are directly adjacent to the MAK Mines East Pit, currently being mined for No. 5 Seam coal by the MAK operation. The South and East Fields are divided by a northwest trending fault that extends along the east side of the East Pit. |
South Field |
Drilling in the South Field has focused on delineating the No. 5 Seam as it projects down-dip and along strike from the East Pit. Drilling has identified 13.8 million tonnes of measured and indicated resources in the South Field. Thirty drill holes define the No. 5 Seam, with an average seam thickness of 59.4 metres, dipping at 45° to the south. |
Seam | ASTM Group | In-Place Resources (000 Tonnes) | ||||||||||||||
Measured | Indicated | Inferred | ||||||||||||||
5 |
High-Volatile | 6,678 | 7,126 | 11,128 | ||||||||||||
Bituminous | ||||||||||||||||
Total |
13,804 |
11,128 | ||||||||||||||
Drilling is continuing in the South Field to further define No. 5 Seam resources. Exploration also is being carried out to further investigate the resource potential of the Nos. 8, 9 and 10 Seams that sub-crop to the south of the No. 5 Seam. |
East Field |
The East Field is located on the down-thrown side of the northwest-trending fault that separates it from the South Field. While drilling has not intersected the No. 5 Seam coal in the East Field, significant coal resources have been identified in the overlying Nos. 8, 9 |
Seam | ASTM Group | In-Place Resources (000 Tonnes) | ||||||||||||||
Measured | Indicated | Inferred | ||||||||||||||
8 |
High- | 1,037 | 1,112 | 912 | ||||||||||||
9 |
Volatile | 7,986 | 6,086 | 6,907 | ||||||||||||
10 |
Bituminous | 5,955 | 2,709 | 2,932 | ||||||||||||
Total |
24,884 |
10,752 | ||||||||||||||
West Field |
The West Field is located 6.5 kilometres west of the South Field, adjacent to the MAK mining lease. The field is approximately 1.6 kilometres southwest of the MAK West Pit. Drilling has targeted the Nos. 5, 7, 8, 9, 10 and 11 seams along the limbs of a southwest-plunging anticline. A total of 71 drill holes have defined a measured plus indicated resource of 33.4 million tonnes in the West Field. |
Along the south limb of the anticline, drilling has intersected seams Nos. 5 through 10 in strata dipping from 45° to 60° toward the southeast. Strata along the north limb have been offset and rotated by reverse faulting. Drilling has intersected seams Nos. 7 through 11 dipping south-southwest at approximately 35°. The thickness of the No. 5 Seam averages 59.3 metres along the south limb. The upper seams for the south limb have a combined average thickness of 7.3 metres. The upper seams on the north limb have a combined thickness averaging 5.4 metres. |
Seam | ASTM Group | In-Place Resources (000 Tonnes) | ||||||||||||||
Measured | Indicated | Inferred | ||||||||||||||
5 |
4,047 | 2,756 | 185 | |||||||||||||
7 |
100 | 124 | 152 | |||||||||||||
8 |
High- | 1,117 | 920 | 449 | ||||||||||||
9 |
Volatile | 6,815 | 5,420 | 1,280 | ||||||||||||
10 |
Bituminous | 4,140 | 2,429 | 675 | ||||||||||||
11 |
4,357 | 1,186 | 1,269 | |||||||||||||
Total |
33,411 |
4,009 | ||||||||||||||
Coal Quality |
At this time, coal quality testing has been completed for approximately 25% of the core samples. Initial coal quality testing results of the coal seams in all three fields ranks the Nariin Sukhait coals as high-volatile bituminous under ASTM standards. Tests indicate that much of the No. 5 Seam is high-rank, low-ash, low-sulphur coal. Based on initial tests, typical characteristics for the No. 5 Seam average 9% moisture, 11.5% ash, 1.1% sulphur and a caloric value of approximately 6,400 Kcal/kg. Initial testing has shown more variability in the upper seams. Typical combined characteristics for the upper seams average 9.5% moisture, 15.2% ash, 0.7% sulphur and approximately 6,050 Kcal/kg. Reverse circulation coal samples are being tested by Mining Institute in Ulaanbaatar. Core samples are undergoing complete thermal and metallurgical testing by SGS Minerals Services in Denver, Colorado, USA. |
Extensive field mapping has identified numerous intermittent exposures of coal outcroppings that occur for more than 95 kilometres along the north margin of the sedimentary basin that contains the Nariin Sukhait deposit. Norwest also expects to be providing resource estimates on four additional areas at Nariin Sukhait that have shown |
encouraging initial results. To date, the Company has been engaged in exploration on 17 individual areas within the Nariin Sukhait Basin. |
The Company plans to bring the Nariin Sukhait resources into a pre-feasibility-level study within the next six months and is currently involved in preliminary marketing discussions with potential coal buyers. Successful negotiations could see initial production from the Companys properties in the second half of 2006 although there can be no assurance that this timetable will be met. |
Qualified Person |
Mr. Steven B. Kerr, Senior Geologist with Norwest Corporation and a Qualified Person as defined by National Instrument 43-101, has reviewed and approved the information contained in this Material Change Report. |
Norwest has been commissioned by the Company to design, implement and manage the exploration program at Nariin Sukhait. Throughout the exploration program, Norwest has provided on-site management and technical assistance. Norwest will use the information gained from this program to prepare a pre-feasibility study for the development of a surface mining operation at Nariin Sukhait. Environmental baseline studies and geologic modelling are in progress. |
6. | RELIANCE ON SUBSECTION 7.1(2) OR (3) OF NATIONAL INSTRUMENT 51-102 |
Not applicable. |
7. | OMITTED INFORMATION |
No confidential information has been omitted from this material change report. |
8. | EXECUTIVE OFFICER |
The name and business number of the executive officer of the Company who is knowledgeable of the material change and this report is: |
Beverly A. Bartlett Ivanhoe Mines Ltd. Suite 654 999 Canada Place Vancouver, British Columbia V6C 3E1 |
Telephone: (604) 688-5755 |
9. | DATE OF REPORT |
DATED at Vancouver, British Columbia this 21st day of September, 2005. |
Per: | Beverly
A. Bartlett |
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Beverly A. Bartlett |
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Corporate Secretary |