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Ivanhoe Mines Ltd.: New Mineral Resource Estimate Adds 281 Million Tonnes of High-Grade Inferred Resources to the Hugo North Copper-Gold Deposit in Mongolia.


ULAANBAATAR Ulaanbaatar or Ulan Bator (both: län` bä`tôr) [Mongolian,=red hero], Chinese Kulun, city (1995 est. pop. , Mongolia Mongolia, country, Asia
Mongolia (mŏn-gō`lēə, mŏng–), officially State of Mongolia, republic (2005 est. pop. 2,791,000), 604,247 sq mi (1,565,000 sq km), N central Asia; traditionally known as Outer Mongolia.
 -- John Macken For people named Macken, see .
Macken, Germany
Macken is a small hamlet in County Fermanagh, Northern Ireland, off the A509 main Enniskillen to Derrylin road.
, President of Ivanhoe Ivanhoe

disinherited by father, Cedric the Saxon. [Br. Lit.: Ivanhoe]

See : Banishment


Ivanhoe

the epitome of chivalric novels. [Br. Lit.: Ivanhoe]

See : Chivalry
 Mines (TSX TSX Toronto Stock Exchange (TSE before April, 2002)
TSX Transfer from Stack Pointer to Index
TSX True Space Extension
:IVN IVN Interactive Video Network
IVN Intravenous
IVN Internationale Vereniging voor Neerlandistiek
IVN Intravenous Nutrition
IVN Integrated Voice Network
IVN Intervening Networks
IVN in Vehicle Network
)(NYSE NYSE

See: New York Stock Exchange
:IVN), announced today that a new Mineral Resource estimate prepared by Ivanhoe under the supervision of AMEC AMEC African Methodist Episcopal Church
AMEC Agent Mediated Electronic Commerce
AMEC Arctic Military Environmental Cooperation
AMEC Advanced Micro-Fabrication Equipment Inc
AMEC Association of Media Evaluation Companies
 Americas A·mer·i·cas   , the

See America.
 Limited (AMEC), and endorsed by AMEC, has delineated de·lin·e·ate  
tr.v. de·lin·e·at·ed, de·lin·e·at·ing, de·lin·e·ates
1. To draw or trace the outline of; sketch out.

2. To represent pictorially; depict.

3.
 an additional Inferred resource for the northern-most portions of the Hugo HUGO - A bytecode-interpreted transaction handler from Geac.  North Deposit that is continuing to be expanded by ongoing exploration drilling at Oyu Tolgoi in Mongolia's South Gobi Gobi (gō`bē), Mandarin Yintai shamo, great stony desert of N central Asia, c.500,000 sq mi (1,295,000 sq km), extending c.1,000 mi (1,610 km) from east to west across SE Mongolia and N China from the Da Hinggan (Great Khingan) Mts.  region.

The new estimate, based on eight months of drilling to January January: see month.  13, 2006, adds:

- At a 0.6% copper equivalent cut-off cut-off Anesthesiology The point at which elongation of the carbon chain of the 1-alkanol family of anesthetics results in a precipitous drop in the anesthetic potential of these agents–eg, at > 12 carbons in length, there is little anesthetic activity,  grade - 281 million tonnes of inferred resources at an average grade of 1.49% copper and 0.51 grams per tonne tonne

measure of weight or mass; 1 tonne=1000 kg. See also ton.
 (g/t) gold (a copper equivalent grade of 1.82%).

- At a higher 2% copper equivalent cut-off grade - 87 million tonnes of inferred resources at an average grade of 2.62% copper and 1.19 g/t gold (a copper equivalent grade of 3.38%).

The Oyu Tolgoi Complex (Ivanhoe's 100% owned Oyu Tolgoi Property and the adjoining Ivanhoe/Entree joint venture Shivee Property) now contains:

- Proven and Probable PROBABLE. That which has the appearance of truth; that which appears to be founded in reason.  open-pit reserves of 930 million tonnes, with a grade of 0.50% copper and 0.36 g/t gold, containing 8.9 billion pounds of recovered copper and 7.6 million ounces of recovered gold. The reserve estimate was prepared by GRD GRD Guard
GRD Grenada (ISO Country code)
GRD Greek Drachma (old currency code; replaced by EUR)
GRD Gulf Region Division (US Army Corps of Engineers) 
 Minproc Limited in January 2006 (see Ivanhoe's January 30, 2006, news release) based on Net Smelter Return (NSR NSR
abbr.
normal sinus rhythm


NSR Normal sinus rhythm, see there
) cut-offs equal to a copper equivalent cut-off of 0.3%. The Southern Oyu resources are calculated at a copper equivalent cut-off of 0.3% in the GRD Minproc Mineral Reserve estimate.

- Measured and Indicated resources, inclusive of inclusive of
prep.
Taking into consideration or account; including.
 Proven and Probable reserves, totalling 1.15 billion tonnes grading 1.27% copper and 0.48 g/t gold (a copper equivalent grade of 1.58%), containing 32.2 billion pounds of copper and 17.7 million ounces of gold, at a 0.60% copper equivalent cut-off grade.

- And in addition, Inferred resources of 1.44 billion tonnes grading 1.11% copper and 0.28 g/t gold (a copper equivalent grade of 1.29%), containing approximately ap·prox·i·mate  
adj.
1. Almost exact or correct: the approximate time of the accident.

2.
 35.3 billion pounds of copper and 13.1 million ounces of gold, at a 0.60% copper equivalent cut-off grade.

The new resource estimate incorporates additional down-dip and in-fill drilling up to 400 metres south of the Oyu Tolgoi property boundary BOUNDARY, estates. By this term is understood in general, every separation, natural or artificial, which marks the confines or line of division of two contiguous estates. 3 Toull. n. 171.
     2.
, plus the initial 625-metre strike extension (the Hugo North Extension) that continues in a northeasterly north·east·er·ly  
adj.
1. Situated toward the northeast.

2. Coming or being from the northeast.



north·east
 direction on the adjoining Ivanhoe-Entree joint-venture Shivee Tolgoi Property.

On Ivanhoe's 100%-owned Oyu Tolgoi Property, the new estimate adds

- At a 0.6% copper equivalent cut-off grade - 90 million tonnes of inferred resources grading 1.31% copper and 0.46 g/t gold (copper equivalent grade of 1.63%), containing approximately 2.6 billion pounds of copper and 1.3 million ounces of gold.

- At a 2% copper equivalent cut-off grade - 23 million tonnes of high-grade High-grade

Credit quality of AAA or AA.


high-grade

Of, relating to, or being a bond with little risk of default on the part of the issuer. High-grade is usually reserved for bonds rated AAA or AA by the rating services.
 underground inferred resources grading 2.18% copper and 1.44 g/t gold (copper equivalent grade of 3.09%), containing approximately 1.1 billion pounds of copper and 1.1 million ounces of gold.

These Inferred resources are a direct continuation continuation - continuation passing style  of the Hugo North Indicated resources estimated by AMEC in its Oyu Tolgoi resource estimate in May, 2005 (see Ivanhoe's May 5, 2005, news release) and takes the estimated Hugo North Inferred resources up to the surveyed Oyu Tolgoi/Shivee Tolgoi border.

In addition, the new estimate adds approximately 64 million tonnes of high-grade underground Inferred resources (all below a depth of 560 metres at a 2% copper equivalent cut-off) for the 625-metre Hugo North Extension onto the Ivanhoe-Entree joint-venture Shivee Tolgoi Property.

Based on initial exploration results, the January 2006 resource estimate for the Ivanhoe/Entree joint-venture ground is:

- At a 0.60% copper equivalent cut-off grade - Inferred resources of 190 million tonnes grading 1.57% copper and 0.53 g/t gold (a copper equivalent grade of 1.91%), containing approximately 6.6 billion pounds of copper and 3.2 million ounces of gold.

- At a 2% copper equivalent cut-off grade - Inferred resources of 64 million tonnes grading 2.78% copper and 1.10 g/t gold (a copper equivalent grade of 3.48%), containing approximately 3.9 billion pounds of copper and 2.3 million ounces of gold.

Ivanhoe has the right to earn a participating interest of 80% in all minerals extracted below a sub-surface depth of 560 metres on the Ivanhoe-Entree joint-venture property, and a 70% interest in all minerals extracted from surface to a depth of 560 metres, by spending US$35 million on exploration and/or and/or  
conj.
Used to indicate that either or both of the items connected by it are involved.

Usage Note: And/or is widely used in legal and business writing.
 development of the property over eight years. Ivanhoe has spent approximately US$10 million on the project to date and owns 10.4 million Entree common shares, representing approximately 15% of Entree's outstanding shares. Ivanhoe also owns approximately 2.4 million Entree purchase warrants (1.2 million A warrants and 1.2 million B warrants). Two A warrants are exercisable for one additional Entree common share at an exercise price of CDN (Content Delivery Network) A system of distributed content on a large intranet or the public Internet in which copies of content are replicated and cached throughout the network. $2.75 until July July: see month. , 2007. Two B warrants are exercisable into one additional Entree common share at an exercise price of CDN$3.00 until July 2007. Assuming the full exercise of the warrants, Ivanhoe will own approximately 16% of Entree's issued and outstanding shares.

Subject to Ivanhoe completing its right to earn a participating interest of 80% in all minerals below a depth of 560 metres and the full exercise of the warrants held by Ivanhoe, Ivanhoe's attributable attributable

emanating from or pertaining to attribute.


attributable proportion
see attributable risk (below).

attributable risk
 share of the current Inferred resources on the Ivanhoe/Entree joint-venture ground, at a 0.6% copper equivalent cut-off grade, is approximately 158 million tonnes, containing 5.5 billion pounds of copper and 2.7 million ounces of gold. These totals are in addition to the Mineral Resources Noun 1. mineral resources - natural resources in the form of minerals
natural resource, natural resources - resources (actual and potential) supplied by nature
 and Mineral Reserves contained on Ivanhoe's 100%-owned Oyu Tolgoi Property.

With the new GRD Minproc Mineral Reserve estimate and today's new Ivanhoe/AMEC resource estimate, the Oyu Tolgoi Complex contains Mineral Reserves and Resources as follows:
Table 1: Mineral Reserves(i) - Southern Oyu Open Pits, Oyu Tolgoi -
January 2006
--------------------------------------------------------------------
Class              Ore    NSR Copper Gold   CuEq Recovered Recovered
               (tonnes)   $/t     (%)(g/t) Grade    Copper      Gold
                                              (%)('000 lbs)  (ounces)
--------------------------------------------------------------------
Proven     127,000,000  15.91   0.58 0.93   1.18 1,451,000 2,833,000
--------------------------------------------------------------------
Probable   803,000,000   7.96   0.48 0.27   0.66 7,431,000 4,768,000
--------------------------------------------------------------------
Proven &
 Probable  930,000,000   9.05   0.50 0.36   0.73 8,882,000 7,601,000
--------------------------------------------------------------------
(i) Reserves estimated using metal prices of US$400/oz gold and
US$1.00 /lb copper and block value NSR cut-off grades of
US$3.54/tonne for Southwest Oyu and $3.39/tonne for Central Oyu.



Table 2: Mineral Resources Oyu Tolgoi at a 0.6% Copper Equivalent
cut-off grade - January 2006(ii)
--------------------------------------------------
Deposit            Tonnage  Copper   Gold   Copper
                   (tonnes)     (%)  (g/t)   Equiv.
                                                (%)
--------------------------------------------------
Southern Oyu
 Deposits
--------------------------------------------------
Measured       101,590,000    0.64   1.10     1.34
--------------------------------------------------
Indicated      465,640,000    0.62   0.43     0.89
--------------------------------------------------
Measured
 + Indicated   567,230,000    0.62   0.55     0.97
--------------------------------------------------
and, in
 addition
--------------------------------------------------
Inferred        88,500,000    0.47   0.41     0.73
--------------------------------------------------

--------------------------------------------------
Hugo Dummett
 Deposits
--------------------------------------------------
Indicated
(Hugo North)   581,330,000    1.91   0.41     2.17
--------------------------------------------------
Inferred
(Hugo North
 and South)  1,162,050,000    1.08   0.23     1.24
--------------------------------------------------

--------------------------------------------------
Oyu Tolgoi
 Project
 Grand Total
--------------------------------------------------
Measured       101,590,000    0.64   1.10     1.34
--------------------------------------------------
Indicated    1,046,970,000    1.34   0.42     1.60
--------------------------------------------------
Measured
 + Indicated 1,148,560,000    1.27   0.48     1.58
--------------------------------------------------
and, in
 addition
--------------------------------------------------
Inferred     1,250,550,000    1.04   0.24     1.20
--------------------------------------------------


------------------------------------------------
Deposit                          Contained Metal
                --------------------------------
                  Copper       Gold        Cu eq
               ('000 lbs)   (ounces)   ('000 lbs)
------------------------------------------------
Southern Oyu
 Deposits
------------------------------------------------
Measured       1,430,000  3,590,000    3,000,000
------------------------------------------------
Indicated      6,360,000  6,440,000    9,180,000
------------------------------------------------
Measured
 + Indicated   7,790,000 10,030,000   12,180,000
------------------------------------------------
and, in
 addition
------------------------------------------------
Inferred         920,000  1,170,000    1,430,000
------------------------------------------------

------------------------------------------------
Hugo Dummett
 Deposits
------------------------------------------------
Indicated
 (Hugo North) 24,440,000  7,620,000   27,770,000
------------------------------------------------
Inferred
(Hugo North
 and South)   27,830,000  8,710,000   31,640,000
------------------------------------------------

------------------------------------------------
Oyu Tolgoi
 Project
 Grand Total
------------------------------------------------
Measured       1,430,000  3,590,000    3,000,000
------------------------------------------------
Indicated     30,800,000 14,060,000   36,950,000
------------------------------------------------
Measured
 + Indicated  32,230,000 17,650,000   39,950,000
------------------------------------------------
and, in
 addition
------------------------------------------------
Inferred      28,750,000  9,880,000   33,070,000
------------------------------------------------
(ii)Oyu Tolgoi Mineral Resources are inclusive of Mineral Reserves.



Table 3: Mineral Resources on the Ivanhoe/Entree Shivee Tolgoi
Joint Venture Property as of January 2006 at a 0.6% Copper
Equivalent cut-off grade
-----------------------------------------------
Deposit          Tonnage Copper   Gold   Copper
--------------                            Equiv.
Shivee Tolgoi    (tonnes)    (%)  (g/t)      (%)
-----------------------------------------------
Inferred     190,160,000   1.57   0.53     1.91
-----------------------------------------------


------------------------------------------------
Deposit                          Contained Metal
--------------    Copper       Gold        Cu eq
Shivee Tolgoi  ('000 lbs)   (ounces)   ('000 lbs)
------------------------------------------------
Inferred       6,590,000  3,240,000    8,010,000
------------------------------------------------


Table 4: Mineral Resources at Hugo North and South Deposits
on the Oyu Tolgoi Property as of January 2006 at various Copper
Equivalent cut-off grades
----------------------------------------------------------
Class         Cu
             Eqv        Tonnage     Copper    Gold  Copper
         Cut-off                                     Equiv.
-----
Hugo
 North
 Deposit                (tonnes)        (%)   (g/t)     (%)
----------------------------------------------------------
Indicated    3.5    116,500,000       3.78    0.92    4.37
----------------------------------------------------------
             3.0    155,910,000       3.55    0.85    4.09
----------------------------------------------------------
             2.5    196,850,000       3.31    0.79    3.81
----------------------------------------------------------
             2.0    241,420,000       3.06    0.72    3.52
----------------------------------------------------------
             1.5    318,170,000       2.69    0.63    3.08
----------------------------------------------------------
            1.25    387,190,000       2.43    0.55    2.78
----------------------------------------------------------
             1.0    470,000,000       2.18    0.48    2.49
----------------------------------------------------------
             0.9    501,810,000       2.10    0.45    2.39
----------------------------------------------------------
             0.8    530,470,000       2.03    0.44    2.31
----------------------------------------------------------
             0.7    557,030,000       1.96    0.42    2.23
----------------------------------------------------------
             0.6    581,330,000       1.91    0.41    2.17
----------------------------------------------------------
Inferred     3.5     12,830,000       3.41    1.10    4.11
----------------------------------------------------------
             3.0     24,270,000       3.08    0.97    3.70
----------------------------------------------------------
             2.5     43,490,000       2.69    0.90    3.26
----------------------------------------------------------
             2.0     79,620,000       2.21    0.93    2.80
----------------------------------------------------------
             1.5    163,470,000       1.78    0.69    2.22
----------------------------------------------------------
            1.25    275,980,000       1.52    0.55    1.87
----------------------------------------------------------
             1.0    443,060,000       1.32    0.43    1.59
----------------------------------------------------------
             0.9    511,550,000       1.25    0.39    1.50
----------------------------------------------------------
             0.8    573,360,000       1.20    0.37    1.43
----------------------------------------------------------
             0.7    626,280,000       1.15    0.35    1.38
----------------------------------------------------------
             0.6    671,720,000       1.11    0.34    1.33
----------------------------------------------------------

--------------------------------------------------------------
Class                                          Contained Metal
-----                  ---------------------------------------
Hugo
 North                      Copper          Gold         Cu Eq
 Deposit                 ('000 lbs)      (ounces)    ('000 lbs)
--------------------------------------------------------------
Indicated                9,710,000     3,460,000    11,220,000
--------------------------------------------------------------
                        12,190,000     4,270,000    14,060,000
--------------------------------------------------------------
                        14,350,000     4,990,000    16,530,000
--------------------------------------------------------------
                        16,270,000     5,620,000    18,730,000
--------------------------------------------------------------
                        18,840,000     6,400,000    21,640,000
--------------------------------------------------------------
                        20,730,000     6,830,000    23,720,000
--------------------------------------------------------------
                        22,630,000     7,210,000    25,780,000
--------------------------------------------------------------
                        23,240,000     7,340,000    26,450,000
--------------------------------------------------------------
                        23,730,000     7,450,000    26,990,000
--------------------------------------------------------------
                        24,130,000     7,540,000    27,430,000
--------------------------------------------------------------
                        24,440,000     7,620,000    27,770,000
--------------------------------------------------------------
Inferred                   960,000       450,000     1,160,000
--------------------------------------------------------------
                         1,650,000       760,000     1,980,000
--------------------------------------------------------------
                         2,580,000     1,260,000     3,130,000
--------------------------------------------------------------
                         3,880,000     2,390,000     4,930,000
--------------------------------------------------------------
                         6,420,000     3,640,000     8,010,000
--------------------------------------------------------------
                         9,270,000     4,860,000    11,400,000
--------------------------------------------------------------
                        12,870,000     6,070,000    15,530,000
--------------------------------------------------------------
                        14,120,000     6,480,000    16,960,000
--------------------------------------------------------------
                        15,140,000     6,810,000    18,120,000
--------------------------------------------------------------
                        15,900,000     7,070,000    18,990,000
--------------------------------------------------------------
                        16,450,000     7,320,000    19,650,000
--------------------------------------------------------------


--------------------------------------------------------
Hugo           Cu                                 Copper
 South        Eqv        Tonnage  Copper    Gold   Equiv.
 Deposit  Cut-off        (tonnes)     (%)   (g/t)     (%)
--------------------------------------------------------
Inferred      3.5      5,440,000    3.71    0.25    3.87
--------------------------------------------------------
              3.0     11,950,000    3.38    0.21    3.51
--------------------------------------------------------
              2.5     22,760,000    3.02    0.18    3.14
--------------------------------------------------------
              2.0     38,900,000    2.67    0.15    2.77
--------------------------------------------------------
              1.5     69,620,000    2.21    0.12    2.29
--------------------------------------------------------
             1.25    128,100,000    1.80    0.10    1.86
--------------------------------------------------------
              1.0    203,590,000    1.53    0.09    1.59
--------------------------------------------------------
              0.9    243,160,000    1.42    0.09    1.48
--------------------------------------------------------
              0.8    317,940,000    1.27    0.09    1.33
--------------------------------------------------------
              0.7    413,620,000    1.14    0.09    1.20
--------------------------------------------------------
              0.6    490,330,000    1.05    0.09    1.11
--------------------------------------------------------


-----------------------------------------------
Hugo
 South         Copper         Gold        Cu Eq
 Deposit    ('000 lbs)     (ounces)   ('000 lbs)
-----------------------------------------------
Inferred      450,000       40,000      470,000
-----------------------------------------------
              890,000       80,000      930,000
-----------------------------------------------
            1,520,000      130,000    1,580,000
-----------------------------------------------
            2,290,000      190,000    2,370,000
-----------------------------------------------
            3,390,000      280,000    3,510,000
-----------------------------------------------
            5,080,000      400,000    5,260,000
-----------------------------------------------
            6,860,000      590,000    7,120,000
-----------------------------------------------
            7,620,000      730,000    7,940,000
-----------------------------------------------
            8,900,000      960,000    9,320,000
-----------------------------------------------
           10,370,000    1,210,000   10,900,000
-----------------------------------------------
           11,380,000    1,390,000   11,990,000
-----------------------------------------------


Table 5: Mineral Resources at the Total Hugo Deposits on the
Oyu Tolgoi Property as of January 2006 at various Copper
Equivalent cut-off grades
-------------------------------------------------------------
Total
 Hugo          Cu
 Deposits     Eqv
 On           Cut                                      Copper
 Oyu Tolgoi  -off        Tonnage    Copper    Gold      Equiv.
                         (tonnes)       (%)   (g/t)        (%)
-------------------------------------------------------------
Indicated     3.5    116,500,000      3.78    0.92       4.37
-------------------------------------------------------------
              3.0    155,910,000      3.55    0.85       4.09
-------------------------------------------------------------
              2.5    196,850,000      3.31    0.79       3.81
-------------------------------------------------------------
              2.0    241,420,000      3.06    0.72       3.52
-------------------------------------------------------------
              1.5    318,170,000      2.69    0.63       3.08
-------------------------------------------------------------
             1.25    387,190,000      2.43    0.55       2.78
-------------------------------------------------------------
              1.0    470,000,000      2.18    0.48       2.49
-------------------------------------------------------------
              0.9    501,810,000      2.10    0.45       2.39
-------------------------------------------------------------
              0.8    530,470,000      2.03    0.44       2.31
-------------------------------------------------------------
              0.7    557,030,000      1.96    0.42       2.23
-------------------------------------------------------------
              0.6    581,330,000      1.91    0.41       2.17
-------------------------------------------------------------
Inferred      3.5     18,270,000      3.50    0.85       4.04
-------------------------------------------------------------
              3.0     36,220,000      3.18    0.72       3.64
-------------------------------------------------------------
              2.5     66,250,000      2.80    0.65       3.22
-------------------------------------------------------------
              2.0    118,520,000      2.36    0.67       2.79
-------------------------------------------------------------
              1.5    233,090,000      1.91    0.52       2.24
-------------------------------------------------------------
             1.25    404,080,000      1.61    0.41       1.87
-------------------------------------------------------------
              1.0    646,650,000      1.39    0.32       1.59
-------------------------------------------------------------
              0.9    754,710,000      1.30    0.29       1.49
-------------------------------------------------------------
              0.8    891,300,000      1.22    0.27       1.39
-------------------------------------------------------------
              0.7  1,039,900,000      1.15    0.25       1.31
-------------------------------------------------------------
              0.6  1,162,050,000      1.08    0.23       1.24
-------------------------------------------------------------


--------------------------------------------------
Total
 Hugo
 Deposits
 On              Copper         Gold         Cu Eq
 Oyu Tolgoi   ('000 lbs)     (ounces)    ('000 lbs)
--------------------------------------------------
Indicated     9,710,000    3,460,000    11,220,000
--------------------------------------------------
             12,190,000    4,270,000    14,060,000
--------------------------------------------------
             14,350,000    4,990,000    16,530,000
--------------------------------------------------
             16,270,000    5,620,000    18,730,000
--------------------------------------------------
             18,840,000    6,400,000    21,640,000
--------------------------------------------------
             20,730,000    6,830,000    23,720,000
--------------------------------------------------
             22,630,000    7,210,000    25,780,000
--------------------------------------------------
             23,240,000    7,340,000    26,450,000
--------------------------------------------------
             23,730,000    7,450,000    26,990,000
--------------------------------------------------
             24,130,000    7,540,000    27,430,000
--------------------------------------------------
             24,440,000    7,620,000    27,770,000
--------------------------------------------------
Inferred      1,410,000      490,000     1,620,000
--------------------------------------------------
              2,540,000      840,000     2,910,000
--------------------------------------------------
              4,100,000    1,390,000     4,710,000
--------------------------------------------------
              6,170,000    2,580,000     7,300,000
--------------------------------------------------
              9,810,000    3,920,000    11,530,000
--------------------------------------------------
             14,350,000    5,260,000    16,650,000
--------------------------------------------------
             19,730,000    6,660,000    22,640,000
--------------------------------------------------
             21,740,000    7,210,000    24,890,000
--------------------------------------------------
             24,040,000    7,770,000    27,440,000
--------------------------------------------------
             26,270,000    8,280,000    29,890,000
--------------------------------------------------
             27,830,000    8,710,000    31,640,000
--------------------------------------------------


Table 6: Hugo North Extension Deposit Mineral Resources
 on the Ivanhoe/Entree Shivee Tolgoi Joint Venture Property
 as of January 2006 at various Copper Equivalent cut-off grades
----------------------------------------------------------
Class         Cu Eq                                 Copper
            Cut-off       Tonnage  Copper     Gold   Equiv.
----------------------------------------------------------
Hugo North
 Deposit on
 Shivee Tolgoi           (tonnage)     (%)    (g/t)     (%)
----------------------------------------------------------
Inferred        3.5    27,340,000    3.69     1.33    4.53
----------------------------------------------------------
                3.0    37,630,000    3.40     1.23    4.18
----------------------------------------------------------
                2.5    50,180,000    3.07     1.17    3.82
----------------------------------------------------------
                2.0    64,060,000    2.78     1.10    3.48
----------------------------------------------------------
                1.5    87,480,000    2.41     0.93    3.01
----------------------------------------------------------
               1.25   110,420,000    2.16     0.80    2.67
----------------------------------------------------------
                1.0   131,230,000    1.97     0.72    2.42
----------------------------------------------------------
                0.9   140,340,000    1.89     0.68    2.33
----------------------------------------------------------
                0.8   151,870,000    1.80     0.64    2.21
----------------------------------------------------------
                0.7   169,470,000    1.69     0.59    2.06
----------------------------------------------------------
                0.6   190,160,000    1.57     0.53    1.91
----------------------------------------------------------


----------------------------------------------------
Hugo North                           Contained Metal
 Deposit on         Copper         Gold        Cu Eq
 Shivee Tolgoi   ('000 lbs)     (ounces)   ('000 lbs)
----------------------------------------------------
Inferred         2,220,000    1,170,000    2,730,000
----------------------------------------------------
                 2,820,000    1,480,000    3,470,000
----------------------------------------------------
                 3,400,000    1,880,000    4,220,000
----------------------------------------------------
                 3,920,000    2,270,000    4,910,000
----------------------------------------------------
                 4,660,000    2,620,000    5,810,000
----------------------------------------------------
                 5,260,000    2,830,000    6,500,000
----------------------------------------------------
                 5,690,000    3,020,000    7,010,000
----------------------------------------------------
                 5,850,000    3,080,000    7,200,000
----------------------------------------------------
                 6,040,000    3,150,000    7,420,000
----------------------------------------------------
                 6,310,000    3,200,000    7,710,000
----------------------------------------------------
                 6,590,000    3,240,000    8,010,000
----------------------------------------------------



Footnotes applying to the tables contained in this release.

1. All Mineral Reserves and Mineral Resources have been calculated in accordance Accordance is Bible Study Software for Macintosh developed by OakTree Software, Inc.[]

As well as a standalone program, it is the base software packaged by Zondervan in their Bible Study suites for Macintosh.
 with the standards of the CIM (1) (Computer-Integrated Manufacturing) Integrating office/accounting functions with automated factory systems. Point of sale, billing, machine tool scheduling and supply ordering are part of CIM.  Definition Standards on Mineral Resources and Mineral Reserves, as required by National Instrument (NI) 43-101.

2. Oyu Tolgoi Mineral Resources are inclusive of Mineral Reserves.

3. Mineral Resources which are not Mineral Reserves do not have demonstrated economic viability.

4. The key parameters in determining the Mineral Reserves are metal prices of US$400/oz gold and US$1.00 /lb copper, and block value Net Smelter Return (NSR) cut-off grades of US$3.54/t for Southwest Southwest or south west is the ordinal direction halfway between south and west, the opposite of northeast.

Southwest or south west may also refer to:
  • The Southwestern United States
  • Southwest China
 Oyu and $3.39/t for Central Oyu.

5. For the sake of consistency Consistency can refer to:
  • Consistency proof, in mathematics, logic, and theoretical physics
  • Consistency (statistics), a property of estimators and estimation
 with previous Mineral Resource Estimates at Oyu Tolgoi, Copper Equivalence is calculated with metal prices of US$0.80/lb and US$350/oz for Cu and Au, respectively, according to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 the formula Cu Eq equals %Cu + (g/t Aux11.25)/17.64.

6. The contained gold and copper represent estimated contained metal in the ground and have not been adjusted for the metallurgical met·al·lur·gy  
n.
1. The science that deals with procedures used in extracting metals from their ores, purifying and alloying metals, and creating useful objects from metals.

2.
 recoveries of gold and copper. The determination of an adjustment factor to account for differences in relative metallurgical recoveries between gold and copper will depend upon the completion of definitive metallurgical testing.

Indicated and Inferred resources now have been delineated for the open-ended o·pen-end·ed
adj.
1. Not restrained by definite limits, restrictions, or structure.

2. Allowing for or adaptable to change.

3.
 Hugo North Deposit over a strike length extending for more than 2.5 kilometres, of which approximately 1.9 kilometres is on the Oyu Tolgoi Property and 625 metres is on the joint-venture Shivee Tolgoi Property. Four deep-hole-capacity rigs are continuing with infill in·fill  
n.
1. The use of vacant land and property within a built-up area for further construction or development, especially as part of a neighborhood preservation or limited growth program.

2.
 drilling to upgrade the newly delineated Inferred resources to Indicated resources so that detailed underground mine planning can begin for the Ivanhoe-Entree Gold joint-venture ground.

Step-out drilling also is continuing to extend the Hugo Deposit to the northeast “Northeastern” redirects here. For the Boston college, see Northeastern University, Boston.

Northeast or north east is the ordinal direction halfway between north and east. It is the opposite of southwest. See boxing the compass.
. Hole EGD Esophagogastroduodenoscopy (EGD)
An imaging test that involves visually examining the lining of the esophagus, stomach, and upper duodenum with a flexible fiberoptic endoscope.

Mentioned in: Bleeding Varices


EGD

esophagogastroduodenoscopy.
081B, a 750-metre step-out to the north from the most northerly mineralized min·er·al·ize  
v. min·er·al·ized, min·er·al·iz·ing, min·er·al·iz·es

v.tr.
1. To convert to a mineral substance; petrify.

2. To transform a metal into a mineral by oxidation.

3.
 holes (EGD053, 053A & 053B) used in the new resource estimate, intersected 48 metres of weak copper mineralization Mineralization
The process by which the body uses minerals to build bone structure.

Mentioned in: Rickets

mineralization,
n the bioprecipitation of an inorganic substance.
 beginning at down-hole depth of 1724 metres that grades 0.45% copper and 0.02 g/t gold. The hole was successful in locating the top of the mineralizing system, thereby extending the potential strike length of the Hugo North Extension. Drill hole EGD082A, collared col·lar  
n.
1. The part of a garment that encircles the neck.

2. A necklace.

3.
a. A restraining or identifying band of leather, metal, or plastic put around the neck of an animal.

b.
 150 metres north of the EGD053 series of holes, was drilled to a depth of 1429 metres and abandoned in a fault zone believed to be at the hanging wall of the deposit. The hole suggests that there has been an apparent left-lateral, structural offset of the deposit and that the deposit potentially could continue an additional 600 metres through to EGD081B.

Update: Hugo Dummett Shaft shaft (shaft) a long slender part, such as the diaphysis of a long bone.

shaft
n.
1. An elongated rodlike structure, such as the midsection of a long bone.

2.
 No.1

Construction of the surface complex for the No. 1 shaft into the Hugo Deposit at Oyu Tolgoi has been completed. The complex contains the head frame, hoisting room and ancillary Subordinate; aiding. A legal proceeding that is not the primary dispute but which aids the judgment rendered in or the outcome of the main action. A descriptive term that denotes a legal claim, the existence of which is dependent upon or reasonably linked to a main claim.  facilities. The shaft has an inside diameter Inside diameter is the diameter of the addendum circle of an internal gear.1

Notes
1. ANSI/AGMA 1012-G05, "Gear Nomenclature, Definition of Terms with Symbols".
 of 6.7 metres. Excavation excavation

In archaeology, the exposure, recording, and recovery of buried material remains. The techniques employed vary by the type of site, but all forms of archaeological excavation require great skill and careful preparation.
 of the pre-sink to a depth of 35 metres has been completed and sinking sinking,
n a process to relax by focusing attention on points of contact between the body and the surface it lies or stands on and imagining the body sinking down into the support surface, with the rhythmic modulation of breaths.
 is about to commence towards the planned depth of 1220 metres below surface. Shaft-sinking is expected to be completed in late-2007, with underground drifting and drilling occurring in 2007 and 2008.

The work is being performed by the Redpath Redpath may refer to:

People:
  • Alan Redpath, British evangelist, pastor and author
  • Anne Redpath, artist
  • Bill Redpath, politician
  • Bryan Redpath, rugby player
  • Ian Redpath, cricketer
  • Jean Redpath, singer
  • John Redpath, businessman
 Group of North Bay, Ontario North Bay (, time zone EST) is a city in Northeastern Ontario, Canada (2006 population 53,966). North Bay takes its name from its position on the shore of Lake Nipissing, and covers an area of 314.92 km² (121. , Canada Canada (kăn`ədə), independent nation (2001 pop. 30,007,094), 3,851,787 sq mi (9,976,128 sq km), N North America. Canada occupies all of North America N of the United States (and E of Alaska) except for Greenland and the French islands of , the world's leading shaft-sinking firm. When completed, the shaft will provide access to both the Hugo North and Hugo South Deposits for the completion of detailed feasibility studies The analysis of a problem to determine if it can be solved effectively. The operational (will it work?), economical (costs and benefits) and technical (can it be built?) aspects are part of the study. Results of the study determine whether the solution should be implemented. , further resource delineation drilling and geotechnical characterization A rather long and fancy word for analyzing a system or process and measuring its "characteristics." For example, a Web characterization would yield the number of current sites on the Web, types of sites, annual growth, etc.  work.

Qualified Persons

The new resource estimates were prepared by Ivanhoe Mines, in accordance with the CIM Definition Standards on Mineral Resources and Mineral Reserves, as required by NI 43-101, and independently supervised su·per·vise  
tr.v. su·per·vised, su·per·vis·ing, su·per·vis·es
To have the charge and direction of; superintend.



[Middle English *supervisen, from Medieval Latin
 by AMEC under the direction of Dr. Harry Parker
For the baseball player, see Harry Parker (baseball player). For the tennis player, see Harry Parker (tennis player).
Harry Parker is the well-known head coach of the Harvard varsity rowing program (1963-present).
, Ch. P. Geol., and Steven Ste´ven

n. 1. Voice; speech; language.
Ye have as merry a steven
As any angel hath that is in heaven.
- Chaucer.

2. An outcry; a loud call; a clamor.
To set steven
to make an appointment.
 Blower, P. Geo., both employees of AMEC and independent qualified persons, as defined by NI 43-101.

The January 2006 Southern Oyu Mineral Reserve Estimate was prepared by GRD Minproc Limited and details of the parameters used and qualified persons for this estimate are contained in Ivanhoe's news release of January 30, 2006.

Charles Charles, archduke of Austria
Charles, 1771–1847, archduke of Austria; brother of Holy Roman Emperor Francis II. Despite his epilepsy, he was the ablest Austrian commander in the French Revolutionary and Napoleonic wars; however, he was handicapped by
 Forster For·ster   , E(dward) M(organ) 1879-1970.

British writer whose novels, such as A Room with a View (1908) and Howards End (1910), explore the emotional and moral shortcomings of England's upper classes.
, P.Geo., Ivanhoe Mines' Oyu Tolgoi Manager, and Stephen Stephen, 1097?–1154, king of England (1135–54). The son of Stephen, count of Blois and Chartres, and Adela, daughter of William I of England, he was brought up by his uncle, Henry I of England, who presented him with estates in England and France and  Torr, Ivanhoe Mines' Chief Resource Geologist, qualified persons as defined by NI 43-101, supervised the preparation of the information in this release. SGS SGS Société Générale de Surveillance
SGS Symantec Gateway Security (appliance)
SGS School of Graduate Studies
SGS Subgrid Scale
SGS Singapore Government Securities
SGS Shell Global Solutions
 Analabs Pty. Ltd. prepares the split core at the project site and assays all samples at its facility in Ulaanbaatar, Mongolia. Ivanhoe's QA/QC QA/QC Quality Assurance/Quality Control  program is monitored by independent consultant Dr. Barry Barry, Welsh Barri, town (1991 pop. 45,053) and port, Vale of Glamorgan, S Wales, on the Bristol Channel. Once a major coal-exporting port, its more diversified export products include cement, flour, and steel products.  Smee, P.Geo., and managed on site by Dale Dale , Sir Henry Hallett 1875-1968.

British physiologist. He shared a 1936 Nobel Prize for work on the chemical transmission of nerve impulses, particularly for the isolation and study of acetylcholine (1914).
 Sketchley, M.Sc., P.Geo. Prepared standards and blanks are inserted in·sert  
tr.v. in·sert·ed, in·sert·ing, in·serts
1. To put or set into, between, or among: inserted the key in the lock. See Synonyms at introduce.

2.
 at the sample preparation lab on the project site to monitor the quality control of the assay ASSAY. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. 2. By the acts of Congress of March 3, 1823, 3 Story's L. U. S. 1924; of June 25, 1834, 4 Shars. cont. Story's L. U. S.  data.

Ivanhoe has a 100% interest in the Oyu Tolgoi Project in Mongolia and owns or controls exploration rights covering approximately 135,000 square kilometres Square kilometre (U.S. spelling: square kilometer), symbol km², is a decimal multiple of the SI unit of surface area, the square metre, one of the SI derived units. 1 km² is equal to:
  • 1,000,000 m²
  • 100 ha (hectare)
Conversely:
  • 1 m² = 0.
 in central and southern Mongolia, where additional copper, gold and coal discoveries have been made.

Ivanhoe shares are listed on the Toronto Toronto (tərŏn`tō), city (1998 est pop. 2,400,000), provincial capital, S Ont., Canada, on Lake Ontario. Toronto is the largest city in Canada and since the 1970s has been one of the fastest-changing cities in North America, experiencing  and New York stock exchanges New York Stock Exchange (NYSE)

World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City.
 under the symbol IVN. In addition, Ivanhoe shares will begin trading on NASDAQ NASDAQ
 in full National Association of Securities Dealers Automated Quotations

U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on
 on February February: see month.  6th.

Forward-Looking Statements forward-looking statement

A projected financial statement based on management expectations. A forward-looking statement involves risks with regard to the accuracy of assumptions underlying the projections.
: Statements in this release that are forward-looking statements are subject to various risks and uncertainties concerning the specific factors disclosed dis·close  
tr.v. dis·closed, dis·clos·ing, dis·clos·es
1. To expose to view, as by removing a cover; uncover.

2. To make known (something heretofore kept secret).
 under the heading "Risk Factors" and elsewhere in the corporation's periodic filings with securities regulators in Canada and the United States The United States and Canada share a unique legal relationship. U.S. law looks northward with a mixture of optimism and cooperation, viewing Canada as an integral part of U.S. economic and environmental policy. . When used in this document, the words such as "could," "plan," "estimate," "expect," "intend," "may," "potential," "should," and similar expressions are forward-looking statements. The risk factors that could cause actual results to differ from these forward-looking statements include, but are not restricted to, fluctuations in copper and gold prices, delays in the planned open-pit feasibility fea·si·ble  
adj.
1. Capable of being accomplished or brought about; possible: a feasible plan. See Synonyms at possible.

2.
 and underground pre-feasibility studies, delays in the planned commencement of production at the Oyu Tolgoi project, operational risk, environmental risk, financial risk, geo-political risk, currency risk and other statements that are not historical facts as disclosed under the heading "Risk Factors" and elsewhere in the corporation's periodic filings.

Ivanhoe Mines Ltd. (TSX:IVN) (NYSE:IVN)
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No portion of this article can be reproduced without the express written permission from the copyright holder.
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