1. Leading the specialty steel industry
Michel Wurth – Member of GMB
11-13 September 2007 - Investor Day - Paris
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2. Disclaimer
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3. Agenda
• Specialty steel business model
• Heavy & Special Plates
• Automotive
• Special Flat & Long products
• Conclusion
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4. Specialty steel business model
10/09/2007 Confidential 3

5. The leading and most diversified
speciality steel producer
ArcelorMittal Specialty steel producers in 2006
Shipments in 2006
110.5mt 32.5mt
Lo ng pro ducts specialities
5%
P ipes & Tubes
4%
Wire drawing
8%
Stainless
7%
Tinplate
9% P lates
A uto mo tive
14%
Value added
>60% 54%
Specialities
29%
2006 ArcelorMittal Company 1 Company 2 Company 3 Company 4 Company 5
More than 32mt of specialty steel shipments in 2006
*Source company reports and ArcelorMittal estimates
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6. Characteristics of speciality steels
within ArcelorMittal
AM Prices AM Volume evolution
(HRC base 100 - (H1 ’07 vs H1 ‘06)
average H1 ‘07)
AM -2.1%
Growth
Auto 3.6%
Plates 8.8%
Turnover
AM EBITDA evolution
200
(indexed H1 ’07 vs H1 ‘06)
180
Auto EBITDA
160
Plates
Evolution
140
AM
120
HRC AHSS Heavy Wire Special Stain
100
Plates Plates less
H1 '06 H1 '07
A growing, profitable segment with excellent prospects
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7. ArcelorMittal key success factors in
the specialty steel industry
Global Only truly global specialty player enabling us to serve customers
worldwide
footprint
Product A broad range of specialties allowing a complete offering of
advanced solutions and products to demanding customers
diversity
R&D The largest R&D capability of the industry allowing us to launch
more new products than anyone and more rapidly
Size
ArcelorMittal: a unique player in the specialty steel industry
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8. ArcelorMittal superior R&D expertise
… strongly supporting specialties
ArcelorMittal R&D …
• 86% of R&D is focussed on the further
• Over 1300 full time researchers
development of specialty products
• Budget of more than USD 200 million
• R&D spending by product
• #1 R&D in the industry
• Working on all development axes
14%
(Spending by finality)
2%
2%
5%
Product
30% 37% 6%
Process
Application 64%
7%
33%
Automotive Stainless
• Expanding worldwide network of laboratories
Tinplate Plates
(currently 12 labs in Europe, North America,
Wiredrawing Long Special
and South America)
Other
The technological pillar of ArcelorMittal helping to transform tomorrow
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9. Example: Continuous innovative flow for
future products and solutions
• Ductile ultra-high strength steels
• Ultrafine grain steels
Breakthrough products proposed
in coming years (2008-2011) • Low density steels
• Steel matrix composites
• Material modelling
Rm (Strength)
1600
Mechanical
Recyclability 1400
With enhanced in use properties
Properties
1200
1000
Weldability
800
In-Use Properties
600
Composite
400
HSLA
200
DP 600
Fatigue EDDQ
0
Composite Steel
0 10 20 30 40 50
Low Density
A% Elongation
E
1/ρ
Formability
Crash
8

10. Example: Modelling for efficient industrial
operations & product development
Process Reverse
Efficiency
1 engineering
(Cost, Energy &
Environment)
In-use
properties
Steel • crash
Process • fatigue
2
Pr ro
• corrosion
• global route oc bu
• appearance
es stn
•…
Predic ties
s/
prope
pr ess
Pr
4
od
od
uc
uc
t in-us
Metal
t
r
td
3
es
processing
Material
ig
e
• forming
n
• microstructure &
• joining
mechanical
• cutting
characteristics
• painting
•surfaces
•…
•defects
Predict
processing
behavior
3 9

11. Heavy & Special Plates
10/09/2007 Confidential 10

12. Heavy & Special Plates
… and tomorrow:
Heavy Plates today …
• Shipments: 4.4mt* in 2006, 4.8mt* foreseen • Reopening of Gary Plate Mill in October 2007
in 2008 will add up to 500,000t of capacity
• 14 plate mills on 3 continents
• 150 M$ investment plan in Galati to improve
• Full range of products quality and increase production from 1.5 to
–Grades
– Dimensions
2.4mt annually
• Full range of alloy
• Up to 950 mm thick
• Gijon Plate mill to go to 800,000t (450,000t
grades
• Up to 5 m wide
today) in 2009/2010
• HSLA
• Up to 90 tons weight
• Addition of 100,000t of heat treatment
• Over 1mt/year of heat treatment capacity capacity in 2008
• Own worldwide distribution network
• Total production target in 2010 is 6.8mt –
• In addition, 51% ownership in Dillingen 40% growth over 2007 !
(2.4mt) and 37% in Hunan Valin (1.5mt)
A strong worldwide player with ambitious growth plans
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* excluding Dillingen and Hunan Valin

13. Example 1: Cryogenic Plates
Market Evolution
Applications
• Increasing international gas trade (and
• LNG storage tanks
consumption), with an increasing share of
(9% Ni plates)
LNG 6.8% annual growth rate
• Ethylene transportation
ships (5% Ni plates)
1400
LNG Trade
1200
Pipe Trade
1000
Key points
800
• Low residual grade 600
• Difficult and very specific transformation with 400
severe surface condition requirement 200
• Project management 0
2004 2010 2020
Market structure for 9% Ni plate
Production Routes
• Global leader: ArcelorMittal:
• ArcelorMittal Industeel Belgium
• Competitors: ThyssenKrupp, Posco, JFE, Nippon
• ArcelorMittal USA Coatesville and
Steel, Sumitomo Metals, Kobe, others
Coshohocken
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14. Example 2: Armor & Navy Plates
Applications Market Evolution
• Armor steels for military
and civilian vehicle protection.
• Increasing defense spending worldwide has
• Structural steel for submarine led to a sharply growing market since 2001
hulls
• Projects concentrate on key geographic
zones: 10 countries represented 81% of the
2005 world military defense expenditure, the
Key points USA representing 70%
• Process know-how: guarantee low thickness
and flatness without residual stress.
• Metallurgical know-how: guarantee ballistic
protection characteristics (impact resistance)
conform to specifications
Market structure for Armor & Navy Plates
• European leader: ArcelorMittal
• US leader: ArcelorMittal
Production Routes
• ArcelorMittal Industeel Loire and Creusot • Competitors: Evraz, Essar, SSAB,
ThyssenKrupp, others
• ArcelorMittal USA Coatesville and
Coshohocken
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15. Automotive
10/09/2007 Confidential 14

16. ArcelorMittal Automotive
… will continue to grow
ArcelorMittal Automotive …
• Several new coating lines planned to satisfy
growing worldwide demand
• Shipments: 17.4mt in 2006
• Worldwide automotive steel consumption:
Worldwide No 1 supplier for automotive
•
steels, more than twice as big as nearest Growth:
competitor +3% p.a.
90
• Competitors: Nippon Steel, ThyssenKrupp, 80
70
US Steel, JFE and others 60
50
• Worldwide industrial presence via 37 coating 40 77.7
69.3
lines in Europe, North America, South 30 57.8
20
America, Africa
10
• Full range of products with worldwide 0
2000 2006 2010
catalogue availability
• Strong R&D and customer support activities to
continuously improve our offerings
The undisputed leader in automotive steels
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17. Example: AHSS
Market Evolution
Why Advanced High Strength Steels*?
• AHSS usage will grow significantly
• C02 or Fuel regulations reinforce the need for
weight reduction 40
• Improvement of crash resistance requires BIW AHSS Usage (%)
Nafta
35
Japan
30
reinforcement of body structure EU
25
EM
20
15
10
Key points 5
• The stringent product properties require the 0
latest steel technology: 2000 2006 2012 2020
– Vaccum degassing, Laddle Metallurgy,
• Confirmed trend for all OEM.
Continuous Tandem Mill
Example of Japanese Carmaker
– Continuous annealing and HDG lines with specific
annealing equipment and thermal cycle Model New Model
– Fully computarized processes, Automatic Surface
Inspection Systems
Market structure for AHSS
• European leader: ArcelorMittal
• US leader: ArcelorMittal
• Competitors: ThyssenKrupp, US Steel, SSAB,
AK Steel, others
* AHSS gathers all Multiphase Steels above 450MPa Tensile Strength
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18. Example: ArcelorMittal technical
support for AHSS implementation
• Dedicated technical teams located at customer premises to
– Identify customer needs
– Steer ArcelorMittal R&D projects
– Assess the value of ArcelorMittal support
5.1 Kg [13%]
5.8 Kg
5.1 Kg
[16%]
[13%]
•
4.6 Kg
Design concepts proposals:
[12%]
22 Kg
[59%]
Vehicle generic modules leveraging
on ArcelorMittal technology
• Vehicle engineering support
to help the customer extract maximum value from
ArcelorMittal product offer
• Product industrialization support
to facilitate the implementation of ArcelorMittal products into
customer processes
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19. Special Flat & Long products
10/09/2007 Confidential 18

20. Example: Special HRC for Energy Pipes
The product
Market Evolution
• Hot rolled coil used to
• Energy pipes market is growing fast, driven by
produce spiral tubes for
Oil & Gas production, and following the growth
pipeline construction
of worldwide GDP.
Key point 35000 Pipeline
construction
30000
• Technically demanding segment for “high tech (km)
25000
products”: wide dimension, high gauges,
20000
technical metallurgical properties
15000
10000
ArcelorMittal position
5000
• Continued strong growth thanks to capacity 0
increases 2003 2004 2005 2006 2007e
1000
• Within this market, the Spiral tubes business is
500
rapidly expanding due to its cost
competitiveness
• ArcelorMittal has doubled its worldwide market
0
2002 2007e 2012P
share in this market within the last 5 years
• Product mix shifting to higher grades (61% of
>X70 grades in 2006)
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21. Example: Sheet Piles and Crane Rails
SHEET PILES CRANE RAILS
The product The product
• Sheet piles are used in the construction of • Rails for cranes
harbours, bank reinforcement on rivers, • High tensile strength, possibility of online
for protection of excavations, as retaining walls, heat-treatment for improved physical properties
foundation structures, etc…..
Production routes
Production routes
• ArcelorMittal Esch-Belval, Rodange, and
• ArcelorMittal Rodange
Dabrowa
Market structure for Sheet piles
• European leader: ArcelorMittal Market structure for Crane rails
• NAFTA leader: ArcelorMittal • Global leader: ArcelorMittal
• Competitors: Salzgitter, Nucor, Chaparral, • Competitors: Corus, VoestAlpine, others
AM
others
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22. Conclusion
10/09/2007 Confidential 21

23. Leading the specialty steel industry
The leader of the speciality steel industry with 32mt of shipments
The largest R&D capability of the industry in product development
bringing a clear competitive advantage
An ambitious growth plan in promising specialties
Question 3
Which producer do you expect to increase its positions the most
in speciality steel over the next years
1 – ArcelorMittal
2 – Nippon Steel
3 – US Steel
4 – ThyssenKrupp
5 – SSAB
Transforming tomorrow
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24. Q&A
10/09/2007 Confidential 23