Goldman Sachs 2008 Global Steel CEO Forum December 4, 2008

2 AISI Weekly U.S. Steel Mills Capacity Utilization

3 NUCOR’S POSITION OF STRENGTH!!! FINANCIAL STRENGTH Highly VARIABLE COST Structure DIVERSIFIED PRODUCT Mix MARKET LEADERSHIP Positions OUR PEOPLE!!!

4 Q balance sheet: Debt of $3.3 billion; Debt = 28% Of Total Capital; Weighted average coupon rate on debt < 6%; $3.1 billion of our debt matures in 2012 & beyond (approx. $2.2 billion after 2017); No commercial paper borrowings; Cash & short-term investments of $1.7 billion Debt Rated “A+” By S&P And “A1” By Moody’s – Highest North American Metals/Mining Debt Ratings. Simple Capital Structure – and no off-balance sheet financing arrangements Superior Financial Flexibility – very successful work raising $4.3 billion of long-term capital in late 2007 and first half In November 2007, issued $1.3 billion of long-term debt (weighted average coupon rate of 5.78%). In May-June 2008, issued equity of $2 billion ($74/share) and long-term debt of $1.0 billion (weighted average coupon rate of 5.78%). Financial Strength

5 Financial Strength Cash from Operations (millions of dollars)

6 Variable Cost Structure

7 Diversified Product Mix First Nine Months 2008 Sales Tons PRODUCT DIVERSIFICATION REDUCES EARNINGS VOLATILITY!!!

8 Market Leadership in North America Position Largest Structural Producer Largest Bar Producer Largest Rebar Producer Largest Cold Finished Bar Producer Largest Steel Joist Producer Largest Steel Deck Producer Largest Rebar Fabrication, Distribution, & Placement Company 2 nd Largest Plate Producer 3 rd Largest Metal Buildings Producer 4 th Largest Sheet Producer

9 It Starts With Our Culture

10 NUCOR’S FOCUS: PROFITABLE GROWTH NUCOR’S 4 PRONGED GROWTH STRATEGY 1. OPTIMIZE EXISTING OPERATIONS 2. GREENFIELD GROWTH –New Technologies –Marketplace Niches 3. INTERNATIONAL GROWTH through JOINT VENTURES 4. PURSUE STRATEGIC ACQUISITIONS Nucor Executes from a Position of Strength

11 Raw Materials Capacity Growth (tons in millions) Steel Mill Capacity Growth (tons in millions) Steel Products Capacity Growth (tons in millions) Capacity Growth – Growing Long-Term Earnings Power

12 Net Income (millions of dollars) 25% CAGR

13 Total Cash Dividends Paid ( millions of dollars)

14 Quarterly Base Dividends Paid (cents per share)

15 NUCOR’S FOCUS: PROFITABLE GROWTH MULTIPLE GROWTH PLATFORMS 1. CORE BUSINESS 2. UPSTREAM – David J. Joseph scrap business; Nucor Steel Louisiana pig iron project 3. DOWNSTREAM – Harris Steel rebar fabrication; metal buildings 4. INTERNATIONAL – Nucor Europe & Nucor Mexico 5. TECHNOLOGY – Castrip® Nucor’s Multi- Pronged Growth Strategy

16 Growth Platform – Core Business Memphis SBQ Mill Decatur Galvanizing Facility Sheet Mill Group’s Growing Value-Added Product Portfolio (interstitial-free steels, dual-phase steels, complex-phase steels) North Carolina Plate Mill Heat Treating Facility Arizona Rolling Mill For Straight-Length Rebar, Coiled Rebar, & Coiled Wire Rod

17 61 Scrap Processing Facilities Growth Platform – Scrap

18 Growth Platform – Rebar Fabrication Harris “RPG” Reinforcing Steel Fabrication Plants  23 Canadian Facilities  23 U.S. Facilities Rebar: Mills & Fab. Facilities Nucor Rebar Producing Mills  10 U.S. Facilities Ambassador Steel  21 U.S. Facilities Hawaii

19 Growth Platform – International Duferdofin-Nucor beams & long products joint venture San Giovanni San Zeno Pallanzeno Italy Sicily Giammoro

20 Growth Platform – Castrip® (ladle through hot band) Castrip® Energy & Emissions Comparison (ladle through hot band) GGE (t CO2 equiv/t) Energy Consumed (GJ/t)

21 Nucor’s Best Years Are Ahead Of Us Nucor’s facilities Nucor’s capabilities Nucor’s financial strength Nucor’s strategies And, the single most important asset behind Nucor’s success – Nucor’s EMPLOYEES – THE RIGHT PEOPLE!!! NUCOR’S BEST YEARS ARE STILL AHEAD OF US!!!

22 Forward-Looking Statements Certain statements made in this presentation are forward-looking statements that involve risks and uncertainties. These forward-looking statements reflect the Company’s 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 Company’s 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 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Nucor’s Annual Report on Form 10-K for the year ended December 31, 2007.