BARNES GROUP INC. MANUFACTURING AND DISTRIBUTION EXCELLENCE.

Barnes Group Inc. is an international aerospace and industrial components manufacturer and a full service distributor serving a wide range of end markets and customers. Barnes Group (NYSE: B) consists of three business segments with 2007 sales of $1.44 billion. Barnes Group is built on a tradition of superior engineering solutions and innovation, with a culture of continuous improvement and commitment to the highest standards of ethical business practice. Barnes Group has more than 6,400 employees around the world in more than 70 locations. To learn more about us, visit our Web site at www.barnesgroupinc.com.

BARNES GROUP INC.

Balanced, Sustainable, Profitable Growth.

BARNES AEROSPACE Superior Solutions Barnes Aerospace is a manufacturer and repairer of highly engineered assemblies and components for commercial and military aircraft engines, airframes, and land-based industrial gas turbines. Barnes Aerospace is also a specialized manufacturer and aftermarket repairer of engineered components and assemblies. We produce critical engine components and airframe parts through technically advanced processes for original equipment manufacturers. Barnes Aerospace’s expertise includes machining large complex parts, and fabrications using special processes such as superplastic forming of metals including titanium, inconel, cobalt and other difficult alloys. Aftermarket repair and overhaul work specializes in the refurbishment and repair of engine components for the world’s largest airlines and the U.S. military.

BARNES DISTRIBUTION The Preferred Choice in Industrial Distribution Barnes Distribution is an international, full-service distributor of maintenance, repair, operating and production supplies. It is one of the largest industrial products distributors in North America and includes operations in Europe. Barnes Distribution is a market leader in vendor managed inventory. The vendor managed inventory (VMI) model provides outsourced inventory management, monitors inventory levels, tracks usage, replenishes stock, and provides inventory reporting with limited customer involvement. Barnes Distribution has widely recognized brands and strong private label product. Barnes Distribution has approximately 1,500 direct sales personnel.

BARNES INDUSTRIAL Innovation and Engineering at Work Barnes Industrial is one of the world’s largest manufacturers of precision mechanical springs and nitrogen gas products, and a global supplier of specialty products, such as precision stamping and fine blanked components, retaining and snap rings, and flapper and reed valves. We are focused on highly engineered custom products and solutions. Barnes Industrial’s Product Development Center provides joint development, rapid prototyping and extensive testing of new products and materials shortening our customers’ lead times to production. The Barnes Industrial business segment includes: Precision Forming, Retention Rings, Nitrogen Gas Products, Precision Valves, and Engineered Springs, which are leaders in their respective markets and are well positioned for growth.

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FINANCIAL HIGHLIGHTS ANNUAL RESULTS CONSOLIDATED STATEMENT OF INCOME

(Dollars in thousands, except per share data)

Net Sales

2007 $ 1,439,502

2006 $ 1,259,656

Adjusted1 2005 $ 1,102,174

892,685 394,443 1,287,128

797,472 345,148 1,142,620

705,488 320,301 1,025,789

Cost of Sales S&A

Adjusted1 2004 $ 994,709 652,904 291,373 944,277

NET SALES $1,439.5 $1,259.7 $1,102.2 $994.7 $890.8

Operating Income Operating Margin Other Income Interest Expense Other Expenses Income Before Income Taxes Income Taxes Income Before Cumulative Effect of a Change in Accounting Principle Cumulative Effect of a Change in Accounting Principle Net Income $ Per Common Share:2 Net Income: Basic Diluted

2

117,036 9.3% 1,181 23,691 1,284 93,242 19,397

76,385 6.9% 10,449 17,551 1,132 68,151 13,609

50,432 5.1% 2,145 15,390 1,310 35,877 5,851

101,337

73,845

54,542

30,026

— 101,337

— 73,845

(391) 54,151

— 30,026

$

$

$

2003

2004

2005

2007

2006

OPERATING INCOME $152.4

$117.0

$

1.90 1.76

$

$

1.46 1.39

1.15 1.10

$

0.65 0.63

$76.4 $50.4 $46.4

Average Common Shares Outstanding:2 Basic Diluted 1

152,374 10.6% 1,090 25,143 1,165 127,156 25,819

2003

53,295,275 57,525,832

47,197,650 49,018,382

50,702,992 52,943,494

2004

2006

2005

2007

46,211,706 47,935,268

Adjusted to reflect the change in accounting for Stock-based Compensation in accordance with Statement of Financial Accounting Standard No. 123R. Adjusted for the two-for-one stock split in the second quarter of 2006.

FINANCIAL RESULTS BY SEGMENTS (Dollars in millions) 20061

2007 Revenue Barnes Aerospace Barnes Distribution Barnes Industrial Intersegment Sales Total Company Operating Profit Barnes Aerospace Barnes Distribution Barnes Industrial Operating Margin Barnes Aerospace Barnes Distribution Barnes Industrial

$

$ $

392.0 537.7 511.1 (1.3) 1,439.5

$

74.0 9.4 69.1

$

$

20051

296.9 479.0 484.6 (0.8) 1,259.7

$

42.7 18.7 55.8

$

$

20041

235.4 414.8 452.4 (0.4) 1,102.2

$

25.5 11.5 39.7

$

$

205.9 389.3 399.9 (0.4) 994.7 19.9 0.6 30.9

27% 36%

37%

Barnes Aerospace

OPERATING PROFIT 2007

Barnes Distribution Barnes Industrial

18.9% 1.8% 13.5%

14.4% 3.9% 11.5%

10.8% 2.8% 8.8%

9.7% 0.2% 7.7%

Segment information has been adjusted on a retrospective basis to reflect the transfer of the Raymond business from Barnes Distribution to Barnes Industrial.

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SALES 2007

49%

45%

6%

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FINANCIAL HIGHLIGHTS FIRST QUARTER 2008 — BARNES GROUP INC. CONSOLIDATED STATEMENT OF INCOME

(Dollars in thousands, except per share data)

Three months ended March 31,

OPERATING MARGIN

Net Sales Cost of Sales S&A

Operating Income Operating Margin Other Income Interest Expense Other Expenses Income Before Income Taxes Income Taxes Net Income Earnings per Share Diluted

2008

2007

$ 388,568

$ 360,650

239,826

220,917

98,842

96,565

338,668

317,482

49,900

43,168

12.8%

12.0%

199

242

5,298

6,972

1,836

340

42,965

36,098

9,534

8,443

$ 33,431

$ 27,655

$0.60

$0.50

12.0%

12.8% 11.2%

11.1%

8.0%

1Q07

2Q07

3Q07

4Q07

1Q08

DILUTED EPS $0.50

$0.60 $0.49

$0.47

$0.30

1Q07

2Q07

3Q07

4Q07

1Q08

Note: First quarter 2008 other expenses includes a $1,215 ($830 after-tax, or $.01 diluted EPS) transaction loss on sale of Spectrum Plastics.

FINANCIAL RESULTS BY SEGMENTS

KEY STATISTICS

(Dollars in thousands)

(as of March 31, 2008) Three months ended March 31,

Net Sales Barnes Aerospace Barnes Distribution Barnes Industrial Intersegment Sales Total Net Sales Operating Profit Barnes Aerospace Barnes Distribution Barnes Industrial Operating Margin Barnes Aerospace Barnes Distribution Barnes Industrial

2008

20071

NYSE

B

$ 112,308

$ 91,192

Price — Close

$

22.95

140,973

139,767

52-Week High

$

36.73

135,585

129,949

52-Week Low

$

(298)

(258)

$ 388,568

$ 360,650

52-Week Return Market Capitalization (billions)

$

Shares Outstanding (millions) $ 22,311

$ 16,842

6,967

6,231

20,624

20,122

19.9%

18.5%

4.9%

4.5%

15.2%

15.5%

Annual Dividend Dividend Yield

20.53 -1.0% 1.2 54.1

$

0.56 2.4%

Segment information has been adjusted on a retrospective basis to reflect the transfer of the Raymond business from Barnes Distribution to Barnes Industrial.

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G L O B A L M A N U FA C T U R I N G , S A L E S A N D D I S T R I B U T I O N C A PA B I L I T I E S BARNES AEROSPACE Domestic Locations East Granby, Connecticut Lansing, Michigan Ogden, Utah Phoenix, Arizona West Chester, Ohio Windsor, Connecticut International Locations Derby, United Kingdom Republic of Singapore (3)

BARNES DISTRIBUTION Domestic Locations Atlanta, Georgia Cleveland, Ohio Dallas, Texas Edison, New Jersey Elizabethtown, Kentucky Hanover Park, Illinois Reno, Nevada Shelbyville, Kentucky International Locations Beamsville, Ontario, Canada Corsham, United Kingdom Dunfermline, Scotland Edmonton, Alberta, Canada Elancourt Cedex, France Epone, France Flers, France Kvistgård, Denmark Madrid, Spain Mississauga, Ontario, Canada Moncton, New Brunswick, Canada Mount-Saint Gilbert, Belgium Taiwan Torino, Italy Willich, Germany Global Sourcing Shanghai, China

BARNES INDUSTRIAL Domestic Locations Ansonia, Connecticut Brecksville, Ohio Bristol, Connecticut Bristol, Pennsylvania Buena Park, California Central Lake, Michigan Corry, Pennsylvania Dallas, Texas Frazer, Michigan Milwaukee, Wisconsin Plymouth, Michigan Saline, Michigan Sterling Heights, Michigan Syracuse, New York Troy, Michigan Ypsilanti, Michigan

International Locations Bangkok, Thailand Bettlach, Switzerland Burlington, Ontario, Canada Campinas, Brazil Dongguan, China Evesham, United Kingdom Hoddesdon, United Kingdom Köningstein, Germany Mexico City, Mexico Monterrey, Mexico Republic of Singapore Seoul, South Korea Shanghai, China Tianjin, China Tranäs, Sweden Trappes Cedex, France Vitoria, Spain

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B U S I N E S S I N I T I AT I V E S

By maintaining our focus on executing the basics, improve our foundation for profitable growth and create value through the implementation of our long-term strategic plan.

GENERATE GROWTH AND PROFITABILITY THROUGH WORLDWIDE SERVICE. Providing the right products and services to meet our customers’ needs is essential for building lasting value. We seek to provide the necessary worldwide service capabilities to our customers through our geographically dispersed manufacturing and distribution facilities, and our strategic international alliances and acquisitions. Our commitment to providing full-service distribution capabilities and precision manufactured components and assemblies worldwide, and procuring raw material and products from global suppliers at competitive prices, is intended to provide the right products and services for our customers. Our worldwide presence and commitment to continue expanding internationally help solidify our position with our customers as their supplier or distributor of choice.

PURSUE ACQUISITIONS AND STRATEGIC RELATIONSHIPS. We continue to invest in strategic acquisitions and in business alliances. These investments have expanded the scope of our operations, added complementary products or product lines, increased our customer base and expanded our geographic presence. We will continually seek acquisition opportunities in each of our three businesses that will add customers, product offerings, technology or geographic reach to our existing base of business and increase profitability. We will also continue to seek business arrangements which foster long-term business relationships. EXPAND GLOBAL PRESENCE AND CAPABILITIES. Our customer base is global in nature and we are committed to continuing to expand our global presence and capabilities to meet our customers’ needs. We distributed products in 33 countries, and we had more than 65 manufacturing, sales and distribution sites across four continents. In the past four years, we have added manufacturing operations in such places as Mexico and Singapore. We intend to continue to take advantage of lower labor and production costs associated with international

manufacturing and global sourcing capabilities. Additionally, we continue to invest in our global sales and marketing functions to position ourselves to reach new customers and to increase our sales to existing customers. PROMOTE CONTINUOUS IMPROVEMENT INITIATIVES. We continuously undertake initiatives in each of our three businesses to improve our processes, strengthening our competitive advantage. At Barnes Distribution, our initiatives focus on decreasing order processing costs and optimizing inventory levels for our customers. In our Barnes Industrial and Barnes Aerospace businesses, our initiatives are heavily focused on lean manufacturing strategies and techniques. We aggressively promote a culture where process improvements are encouraged and implemented throughout all levels of the organization as part of daily operations.

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MANAGING WITH OUR STRENGTHS

Our executive management team possesses extensive operational, sales, finance and marketing experience in distribution, manufacturing or aerospace organizations.

Further, this team has extensive experience in identifying acquisition candidates, structuring acquisitions and rapidly integrating acquired businesses. Our executive management team and employees are significant holders of our common stock. Additionally, annual cash incentive targets for our management are set through measures similar to an economic value added measure, or through targets for sales and earnings per share growth.

Greg Milzcik, President & CEO Joined BGI: 1999 Previous Exp: Associated Spring, Barnes Aerospace, Lockheed Martin, AAR Corp.

Bill Denninger, SVP, CFO Joined BGI: 2000 Previous Exp: BTR Inc., ITT

John Arrington, SVP, HR Joined BGI: 1998 Previous Exp: GE, U.S. West

Tom Fodell, Vice President and General Manager, Engineered Springs Joined BGI: 1979 Previous Exp: Gilco Inc.

Frank Boyle, VP, Controller Joined BGI: 1978 Previous Exp: Ernst & Young

Signe Gates, SVP, General Counsel and Secretary Joined BGI: 1999 Previous Exp: Axel Johnson, General Signal

Jerry Burris, President, Barnes Industrial Joined BGI: 2006 Previous Exp: General Electric

Patrick Dempsey, President, Barnes Distribution Joined BGI: 2000 Previous Exp: Pratt & Whitney, Interturbine

Scott M. Deakin, SVP, Corporate Development Joined BGI: 2007 Previous Exp: Eaton Corporation

Larry O’Brien, VP, Treasurer Joined BGI: 2001 Previous Exp: L-3 Communications

Joe DeForte, VP, Tax Joined BGI: 1999 Previous Exp: Loctite, Sheraton

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B A R N E S G R O U P I N C . — A P R O U D H I S T O RY

Barnes Group Inc. is a diversified international manufacturer of precision metal components and assemblies and a distributor of industrial supplies, serving a wide range of markets and customers.

Barnes Group enjoys an excellent reputation which has been earned over 150 years since our founding in 1857. This reputation is built on our commitment to the high standards of business conduct and ethics that we abide by in dealing with customers, suppliers, vendors, governmental authorities, local communities, the pubic and fellow employees. We exist to serve our customers. We focus on those customers who recognize and reward superior quality and service. We focus on manufacturing and distributing products and services where we have or can gain a competitive advantage through innovation, technology, quality, and a customer-centric focus.

People are our most important resource. We foster an environment where each person is respected as an individual who can make a significant contribution to the success of the Company. “Barnes Group insists that all of its directors, officers, employees, agents and representatives adhere to high ethical standards and behave lawfully when engaging in business conduct. This is a fundamental obligation of each Barnes Group director, officer and employee and is consistent with each individual’s personal responsibility for helping to preserve and guard the Company’s assets and reputation in the business community.”

– The Barnes Group Inc. Code of Business Ethics and Conduct

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BARNES GROUP INC. TIMELINE

1857 1921 1922 1923 1946 1953 1963 1964 1968 1976 1981 1981 1982 1986 1989 1990 1999 2000 2001 2002 2003 2004 2005 2005 2006 2006 2006 2006 2007

Wallace Barnes founded his own small company in Bristol, Connecticut, making springs for clocks and hoop skirts, in partnership with E.L. Dunbar. Wallace Barnes Co., Ltd. was established in Hamilton, Ontario. Barnes-Gibson-Raymond, Inc. (BGR) was founded in Detroit. BGR became the Associated Spring Corporation (ASC). Wallace Barnes Division purchased Dunbar Bros. Co. Associated Spring Corporation stock was offered for sale over the counter. Annual sales passed $50 million. Associated Spring Corporation was listed on the New York Stock Exchange. ASC purchased Bowman Products of Cleveland, National Distribution of Repair and Replacement Parts. Sales passed the $100 million mark. Name changed from Associated Spring Corporation to Barnes Group Inc. Associated Spring opened facility in Singapore. Company entered the aerospace field with the acquisition of Central Metal Products of East Windsor, Connecticut. Barnes Aerospace was formed with the acquisition of Windsor Manufacturing of Windsor, Connecticut. Barnes Aerospace acquired Jet Die and Engine of Lansing, Michigan. Annual sales exceeded $500 million. Barnes Aerospace opens Singapore facility. Teledyne Nitrogen Gas Springs acquired. Curtis Industries, a distribution company, and Kratz-Wilde, an aerospace company, were acquired. Two distribution companies, Euro-Stock and Forward Industries, were acquired. Barnes Industrial (formerly Associated Spring) acquired Seeger-Orbis in Germany and Spectrum Plastics in Connecticut. Kar Products was acquired for Barnes Distribution. De-Sta-Co Manufacturing was acquired for Barnes Industrial (formerly Associated Spring). Toolcom Supplies and Service Plus Industries were acquired for Barnes Distribution. Annual sales exceeded $1 billion. Heinz Hänggi was acquired for Barnes Industrial (formerly Associated Spring). Barnes Distribution acquired KENT. Barnes Industrial (formerly Associated Spring) acquired Nitro Push product line. Gregory F. Milzcik named President and Chief Executive Officer of Barnes Group Inc. Barnes Industrial acquired Di-Dro Manifold System product line. 9

M A N U FA C T U R I N G A N D D I S T R I B U T I O N E X C E L L E N C E .

Corporate Office 123 Main Street Bristol, CT 06010 USA www.barnesgroupinc.com