Forward-Looking Statements

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Forward-Looking Statements

• Certain statements made in this
  presentation are forward-looking statements that
  involve risks and uncertainties. These
  forward-looking statements reflect the Companys
  best judgment based on current information, and
  although we base these statements on
  circumstances that we believed to be reasonable
  when made, there can be no assurance that future
  events will not affect the accuracy of such
  forward-looking information. As such, the
  forward-looking statements are not guarantees of
  future performance, and actual results may vary
  materially from the results and expectations
  discussed herein. Factors that might cause the
  Companys actual results to differ materially
  from those anticipated in forward-looking
  statements include, but are not limited to (1)
  the sensitivity of the results of our operations
  to prevailing steel prices and the changes in the
  supply and cost of raw materials, including scrap
  steel (2) availability and cost of electricity
  and natural gas (3) market demand for steel
  products (4) competitive pressure on sales and
  pricing, including pressure from imports and
  substitute materials (5) uncertainties
  surrounding the global economy, including excess
  world capacity for steel production and
  fluctuations in international conversion rates
  (6) U.S. and foreign trade policy affecting steel
  imports or exports (7) significant changes in
  government regulations affecting environmental
  compliance (8) the cyclical nature of the steel
  industry (9) capital investments and their
  impact on our performance and (10) our safety
  performance.
• The following discussion should be read in
  conjunction with the audited consolidated
  financial statements and Managements Discussion
  and Analysis of Financial Condition and Results
  of Operations contained in Nucors Annual Report
  on Form 10-K for the year ended December 31,
  2005.

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Nucors Growth Strategy
Nucor is in a POSITION of STRENGTH to execute
our CYCLICAL GROWTH STRATEGY --- optimize
existing operations, pursue strategic
acquisitions, use greenfield growth to capitalize
on new technologies, and grow globally through
joint ventures leveraging new technologies
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Nucor Overview

• 49 Operating Facilities in 17 states
• In 2005, 11,300 employees generated 12.7 billion
  in sales and 20.7 million tons of steel shipments
  
• Corporate Staff of 66 Employees
• Largest recycler in the United States

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Nucor Overview
Key Facilities
Nucor North Americas largest, most
diversified, and most profitable steel producer
in 2005
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It Starts With Our Culture

• Commitment to Employees
• TEAM WORK
• Incentive-based pay for everyone Pay For
  Performance
• Non-union
• Lean management
• Decentralized structure fosters entrepreneurial
  spirit
• Egalitarian benefits
• No lay-off practice

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Position of Strength

• Financial Strength
• Market Leadership
• Diversified Product Mix
• Technological Innovation
• Low-cost Position

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Nucor Overview

• Profitable every year and every quarter since
  1966
• Sales have grown from 3.5 billion in 1995 to
  12.7 billion in 2005
• Steel shipments have grown from 7.7 million tons
  in 1995 to 20.7 million tons in 2005

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Net Sales 1995-2005 (millions of dollars)
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Net Income 1995-2005 (millions of dollars)
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Steel Shipments 1995-2005(millions of tons)
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Pre-Tax Profit / Ton 1995-2005
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Cash from Operations 1995-2005(millions of
dollars)
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Financial Strength

• Cash Short-term Investments Of 2.2 Billion At
  The Close Of Q1-2006
• Debt 16 Of Total Capital At The Close Of
  Q1-2006
• Debt Rated A By SP And A1 By Moodys
  Highest North American Metals/Mining Debt Ratings
  
• Cash Provided By Operations Of More Than 2.1
  Billion In 2005
• Cash Dividends Increased Every Year Since Nucor
  Began Paying Dividends In 1973 Supplemental
  Dividend Payments Initiated In 2005 and Continued
  in 2006

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Conservative Financial Practices

• Conservative Financial Accounting Practices
• Financial Reporting In Plain Language And Easy To
  Understand Format
• Simple Capital Structure
• No Off-Balance Sheet Financing Arrangements
• No Pro Forma Earnings Reporting
• Strong Balance Sheet
• No Pension Liability
• Superior Financial Flexibility

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Cash Dividends Paid 1995-2005(millions of
dollars)
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Market Leadership

• Largest U.S. structural steel producer
• Largest U.S. steel bar producer
• Largest U.S. steel joist producer
• Largest U.S. steel deck producer
• Largest U.S. cold finished bar producer

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Diversified Product Mix
2005 Sales Tons
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Record 2005 Results

• RECORD EPS of 8.26 in 2005 up 18 from 2004
  EPS of 7.02 and SECOND CONSECUTIVE ANNUAL
  EARNINGS RECORD
• 2005 EPS of 8.26 more than FOUR TIMES GREATER
  than 2000 EPS of 1.90 posted at last peak in
  economic and steel market cycles
• In 2005, the Nucor Team successfully managed
  through significant challenges that included
  declining flat rolled spot market prices and
  rising energy costs
• Back-to-back annual earnings records prove the
  value of Nucors position as the most DIVERSIFIED
  steel producer in North America
• Nucor Team remains focused on DISCIPLINED
  execution of strategic growth plan

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Diversified Product MixSteel Production
Capacity (tons)
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Diversified Product MixSteel Products
Production Capacity (tons)
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Technological Innovation

• First to commercialize thin-slab casting
• Near net shape beam blank casting of wide-flange
  beams (structural steel)
• Focus on new disruptive and leapfrog technologies
  continues
• Castrip direct strip casting of carbon sheet
  steel
• HIsmelt converts iron ore to liquid metal or
  pig iron both a blast furnace replacement
  technology and a hot metal source for electric
  arc furnaces
• Ferro Gusa Carajás environmentally sustainable
  blast furnace

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Q1-2006 Highlights

• Q1-2006 EPS of 2.42 up 10 from Q1-2005 EPS of
  2.20
• THIRD CONSECUTIVE FIRST QUARTER EARNINGS RECORD
• Product diversification again key driver to our
  earnings growth
• Q1-2006 steel shipments of 5.7 million tons
  increase of 13 over year-ago quarterly shipments
• Work continues implementing strategic growth
  plan Connecticut Steel acquisition NEXFRAME
  light gauge steel framing joint venture with
  Lennar Raw Materials Strategy implementation
  and, plans for Second Castrip production facility
  
• Nucor Team is encouraged by our progress BUT WE
  ARE NEVER SATISFIED!!!

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Growth Opportunities

• Position of strength allows us to take advantage
  of marketplace opportunities and continue Nucors
  successful tradition as a cyclical growth
  company.
• Nucors 4 Pronged Growth Strategy
• Optimize existing operations
• Pursue strategic acquisitions
• Continue greenfield growth opportunities to
  capitalize on new technologies
• Grow globally through joint ventures leveraging
  new technologies

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Optimize Existing Operations

• Continual Improvement In Quality Cost Our
  Focus Every Day
• Nucor BESTmarking
• Bar Mill Group Capital Projects Program
• Improve Sheet Mill Groups Volume and
  Profitability continue focus on supplying
  value-appreciative customers with value-added
  products
• The Fight for Free and FAIR Trade
• Raw Materials Strategy To Develop Supplies Of
  High Quality Scrap Substitutes

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Strategic Plan Raw Materials

• Develop supplies of high quality scrap
  substitutes control approximately one-third of
  Nucors iron units annual consumption
• At our current consumption rate, will require
  between 6,000,000 to 7,000,000 tons per year of
  high quality scrap substitutes
• Raw materials strategy driven by Nucors ongoing
  expansion of our sheet steel product portfolio
  into higher quality grades

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Nu-Iron Unlimited

• Acquired an idled direct reduced iron (DRI)
  plant located in Louisiana in September 2004
• Plant relocated to Trinidad with annual
  capacity expanded to 1,800,000 metric tons
  construction approximately 70 complete at close
  of Q1-2006
• Trinidad site benefits from a very
  cost-attractive and long-term supply of natural
  gas and favorable logistics for receiving iron
  ore and shipping DRI to our sheet mills
• Operations expected to begin in Q4-2006

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Ferro Gusa Carajás

• Joint venture with
  Companhia Vale do Rio
  Doce (CVRD) to produce
  pig iron in northern Brazil
• Project utilizes conventional mini-blast furnaces
• Pig Iron made in an Environmentally Friendly
  manner charcoal source exclusively from
  eucalyptus trees grown in cultivated forest
• Production started in Q3-2005

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Technology For The 21st Century - HIsmelt

• Direct smelting process being developed by Rio
  Tinto, Nucor, Mitsubishi and Shougang
• Blast furnace replacement technology and hot
  metal source for electric arc furnaces
• Production at Kwinana, Australia plant started up
  operations in Q2-2005
• Future royalty stream for partners
• Raw material source for Nucor

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Technology For The 21st Century - HIsmelt
(See www.hismelt.com)
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Pursue Acquisitions
Nucors DISCIPLINED acquisition strategy has
greatly expanded our platform for generating
earnings and attractive returns on our
shareholders capital

• Nucors Acquisition Criteria
• Dont over-pay
• Stick with businesses we understand
• Must be CULTURAL COMPATIBILITY

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2000 2005 Steel Shipments(millions of tons)
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Technological Innovation

• Strip casting
• Produces ultra-thin gauge hot rolled steel with
  superior properties (cold rolled replacement at
  hot band cost)
• Minimizes environmentaland economic impact
• (See www.castrip.com)

Ladle
Tundish
Pinch rolls
Transition piece
Casting rolls
Shear
Hot rolling stand
2nd hot rolling stand (optional)
Controlled atmosphere
Down Coilers
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Energy Emissions (ladle through hot band)
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Nucors Success

• Nucors facilities
• Nucors capabilities
• Nucors financial strength
• Nucors strategies
• And, the single most important asset behind
  Nucors success Nucors EMPLOYEES THE RIGHT
  PEOPLE
• NUCORS BEST YEARS ARE STILL AHEAD OF US