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 (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 domestic 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,
  2006.

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Nucor Overview

• 53 Operating Facilities in 18 states and Trinidad
• In 2006, 11,900 employees generated 14.8 billion
  in sales and 22.3 million tons of steel shipments
  
• 2006 sales per employee of 1.275 million
• Corporate Staff of 70 Employees
• Largest recycler in the United States

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Nucor Overview

• Profitable every year and every quarter since
  1966
• Sales have grown from 3.6 billion in 1996 to
  14.8 billion in 2006
• Steel shipments have grown from 8.4 million tons
  in 1996 to 22.3 million tons in 2006
• Net Income has grown from 248 million in 1996 to
  1.8 billion in 2006

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Nucor Overview
Key Facilities

• North Americas most diversified steel producer

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Steel Shipments 1996-2006(millions of tons)
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Net Sales 1996-2006 (millions of dollars)
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Pre-Tax Profit / Ton 1996-2006
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Net Income 1996-2006 (millions of dollars)
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Cash from Operations 1996-2006(millions of
dollars)
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Cash Dividends Paid 1996-2006(millions of
dollars)
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Record 2006 Results

• RECORD EPS of 5.68 in 2006 up 38 from 2005
  EPS of 4.13 and THIRD CONSECUTIVE ANNUAL
  EARNINGS RECORD
• 2006 EPS of 5.68 SIX TIMES GREATER than 2000 EPS
  of 0.95 posted at last peak in economic and
  steel market cycles
• DISCIPLINED execution of Nucors four-pronged
  growth strategy has paid off significant
  expansion in earnings power
• Third consecutive annual earnings record in 2006
  AGAIN PROVED THE VALUE OF NUCORS POSITION AS THE
  MOST DIVERSIFIED STEEL PRODUCER in North America
• In 2006, ROE exceeded 38 and 1.2 billion of
  cash returned to shareholders via dividends
  share repurchases continue to build upon
  Nucors long-term record as an effective steward
  of our shareholders valuable capital

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2006 Return On Equity()
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2006 Return On Capital Employed() ROCE
EBIT / (Total Assets Current Liabilities)
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Nucors Position Of Strength To Continue Growing
Shareholder Value

• Our Culture
• Financial Strength
• Diversified Product Mix
• Market Leadership
• Technological Innovation

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It Starts With Our Culture

• Commitment to Employees
• TEAMWORK
• Pay For Performance
• Continual Improvement
• Lean management decentralized structure
  entrepreneurial spirit
• Nucors Employees Take Ownership Of Taking Care
  Of Our Customers!!!

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Financial Strength

• Cash Provided By Operations was a RECORD 2.3
  Billion in 2006
• Over past three years, Nucor has generated cash
  from operations exceeding 5.4 Billion
• At yearend 2006, Debt 15 Of Total Capital
• Debt Rated A By SP And A1 By Moodys
  Highest North American Metals/Mining Debt Ratings
• Simple Capital Structure and no off-balance
  sheet financing arrangements
• Superior Financial Flexibility

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Diversified Product MixSteel Production Capacity
(tons)
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Nucor Steel Mill Capacity Growth 2000-2006
(millions of tons)
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Diversified Growth 2000
2006 Steel Shipments(millions of tons)
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Diversified Product MixSteel Products Production
Capacity (tons)
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Diversified Product Mix
2006 Sales Tons
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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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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

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Technological Innovation Castrip

• 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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Castrip Scale of Operations Comparison
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Castrip Energy Emissions Comparison (ladle
through hot band)
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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 and full production
  expected to be reached over a 3 year ramp-up
  period
• 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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Growth Opportunities Four-Pronged Strategy

• Position of strength allows us to capitalize on
  marketplace opportunities with our flexible
  growth strategy and continue Nucors successful
  tradition as a cyclical growth company.
• Nucors 4 Pronged Growth Strategy
• Optimize Existing Operations
• Pursue Strategic Acquisitions
• Greenfield Growth capitalizing on significant
  cost advantages from new technologies and unique
  marketplace niches
• Grow Globally through joint ventures leveraging
  new technologies

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Optimize Existing Operations

• CONTINUAL IMPROVEMENT In Safety, Quality Cost
  Our 1 Priority Every Day!!!
• Nucor BESTmarking
• Sheet Mill Groups strategy of climbing the value
  chain by providing value-added products and
  services to value-appreciative customers
• Raw Materials Strategy to develop supplies of
  high quality scrap substitutes
• Nucors very proactive role in the fight for Real
  Free Trade

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Optimize Existing Operations Decatur
Galvanizing Facility

• Sheet Mill Group announced in June 2006 plans to
  construct Nucors fourth galvanizing facility
  increasing Nucors total galvanizing capacity by
  one-third to 2 million tons per year
• To be located at Decatur, Alabama sheet mill
• Building on successful acquisitions in Decatur of
  hot rolled sheet mill in 2002 and cold mill in
  2004 Nucor well-positioned to capitalize on
  expanding Southeastern U.S. market for
  value-added sheet steels
• Annual capacity of about 500,000 tons with
  ability to galvanize 72-inch wide sheet cost of
  project will be approximately 150 million
  production start-up in second half of 2008

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Optimize Existing Operations Raw Materials
Strategy

• 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
• Major step forward achieved with successful
  start-up of Nu-Iron direct reduced iron plant in
  Trinidad with annual capacity of 2 million tons
• Raw materials strategy driven by Nucors ongoing
  expansion of our sheet SBQ product portfolio
  into higher quality grades

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Strategic Acquisitions
Our DISCIPLINED acquisition strategy has greatly
expanded Nucors platform for generating earnings
and attractive returns on our shareholders
capital

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

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Acquisitions History

• Auburn Steel assets purchased March 2001 430,000
  tons capacity bar mill in New York
• ITEC Steel assets purchased November 2001 and
  renamed Nucon Steel producer of load bearing
  light gauge steel framing
• Trico Steel assets purchased July 2002 1.9
  million tons capacity hot rolled sheet mill in
  Alabama
• Birmingham Steel assets purchased December 2002
  4 bar mills (located in Alabama, Mississippi,
  Illinois, and Washington) with combined capacity
  of 2.0 million tons
• North Star Kingman assets purchased March 2003
  idled bar mill in Arizona operations not
  re-started

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Acquisitions History

• One-half interest in Harris Steel, Inc. purchased
  February 2004 Harris Steel Groups U.S. rebar
  fabrication operations
• Corus Tuscaloosa assets purchased July 2004
  800,000 tons capacity plate mill in Alabama
• Worthington Industries cold rolling mill assets
  in Decatur, Alabama purchased August 2004 1.0
  million tons capacity (600,000 tons annealing
  capacity) facility located adjacent to Alabama
  sheet mill (acquired in 2002)
• Fort Howard Steels Oak Creek, Wisconsin assets
  purchased February 2005 cold finished bar
  facility with capacity of 140,000 tons
• Marion Steel assets purchased June 2005 450,000
  tons capacity bar mill in Ohio

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Acquisitions History

• Connecticut Steel assets purchased May 2006
  300,000 tons capacity bar products rolling mill
  and 85,000 tons fabrication capacity in
  Connecticut
• Verco Manufacturing Company assets purchased
  November 2006 steel floor and roof decking
  producer with 100,000 tons capacity at 3 western
  U.S. facilities (Arizona, southern California,
  and northern California)

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Strategic Acquisitions Harris Steel Group

• Harris Steel Group announced in January 2007 an
  all-cash tender offer for all shares of Harris
  with debt assumed, transaction value of
  approximately US1.2 billion
• Major step forward implementing Nucors proven
  and highly profitable vertical integration
  strategy Nucor, largest North American rebar
  producer, will become North Americas third
  largest rebar fabricator
• Harris Steel will be an extremely valuable growth
  platform under Nucor ownership, Harris Steel
  will be able to accelerate its highly successful
  growth in rebar fabrication
• Harris Steel owns a cold finished bar producer,
  Laurel Steel will expand Nucors market
  leadership in cold finished bars
• Attractive downstream growth opportunities
  offered by Harris Steels metal gratings, steel
  distribution, and steel trading businesses

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Strategic Acquisitions Harris Steel Group
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Strategic Acquisitions Harris Steel Group
Manufacturing / Distribution

• Reinforcing Steel Fabrication Plants (RPG)
• 23 Canadian Facilities
• 11 U.S. Facilities
• Cold Finished Bar, Wire, Mesh (IPG)
• 1 Canadian Facility
• Steel Aluminum Grating, Expanded Metal (IPG)
• 5 Canadian Facilities
• 6 U.S. Facilities

Fort McMurray, AB
Fort Saskatchewan, AB
Mount Pearl, NF
Richmond, BC
Edmonton, AB
Leduc, AB
Surrey, BC
Saskatoon, SK
Abbotsford, BC
Delta, BC
Calgary, AB
Nanaimo, BC
Regina, SK
Thunder Bay, ON
Longueuil, QC
Kelowna, BC
Seattle, WA
Dartmouth, NS
Ottawa, ON
Saint John, NB
Sudbury, ON
Auburn, WA
Montreal, QC
Portland, OR
Sarnia, ON
Bolton, ON
Boston, MA
Boise, ID
Burlington, ON
Stoney Creek, ON
London, ON
Bethlehem, PA
Windsor, ON
Carson City, NV
Salt Lake City, UT
Saegertown, PA

• Other Operations
• Harris Supply Solutions U.S.
• Novosteel S.A. Neuchatel, Switzerland Montreal
  Canada (main offices).
• Engineering offices
• Sri Lanka Mississauga Scarborough and
  Dartmouth.

McKees Rocks, PA
Wexford, PA
Livermore, CA
Litchfield, IL
Florence, KY
Fresno, CA
Charlotte, NC
Phoenix, AZ
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Greenfield Growth Memphis SBQ Mill

• Bar Mill Group announced in July 2006 plans to
  construct Special Bar Quality (SBQ) products
  steel mill in Memphis, Tennessee to capitalize on
  significantly better cost structure compared to
  key competitors in the SBQ market, both domestic
  and foreign
• 850,000 tons annual capacity capital costs
  reduced dramatically by utilizing the good assets
  we already have on the ground at Memphis site
• Complementing our mills in South Carolina and
  Nebraska, Memphis SBQ mill will position Nucor to
  provide the most diverse, highest quality, and
  lowest cost SBQ product offering in North America
  
• Production start-up expected in Q1-2008

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Performance Expectations

• 10 or better annual compound earnings growth
  (through the economic cycle)
• Return on invested capital exceeding our cost of
  capital
• Market leadership in every product group and
  business in which we compete
• Continue Nucor tradition of emerging from
  economic down-cycles stronger than before
  entering them!!!

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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!!!