2nd Quarter 2005 Conference Call

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June 7, 2005

• 2nd Quarter 2005 Conference Call

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Presentation Content

• Safe Harbor For Forward-Looking Statements
• Statements in this Form 10-Q that are not purely
  historical, including statements which express
  the Companys belief, anticipation or expectation
  about future events, are forward-looking
  statements. Forward looking statements involve
  certain risks and uncertainties that could cause
  actual results to differ materially from such
  statements. In addition to the risk factors
  discussed in Item 1 (Business, under the headings
  Raw Materials, Seasonality, Competition,
  Government Regulation and Environmental Matters,
  and International Operations) of the Companys
  2004 Annual Report on Form 10-K other important
  factors which have impacted and could impact the
  Companys operations and results, include
• The Companys financial leverage and the
  operating and financial restrictions imposed by
  the instruments governing its indebtedness may
  limit or prohibit its ability to incur additional
  indebtedness, create liens, sell assets, engage
  in mergers, acquisitions or joint ventures, pay
  cash dividends, or make certain other payments
  the Companys leverage and such restrictions
  could limit its ability to respond to changing
  business or economic conditions, inability to
  meet debt obligations when due could impair its
  ability to finance operations and could result in
  default
• -continued-

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Presentation Content
(2) The successful expansion through
acquisitions, in which Spartech looks for
candidates that can complement its existing
product lines, expand geographic coverage, and
provide superior shareholder returns, is not
assured. Acquiring businesses that meet these
criteria continues to be an important element of
the Companys business strategy. Some of the
Companys major competitors have similar growth
strategies. As a result, competition for
qualifying acquisition candidates is increasing
and there can be no assurance that such future
candidates will exist on terms agreeable to the
Company. Furthermore, integrating acquired
businesses requires significant management time
and skill and places additional demands on
Company operations and financial resources. If
we are unable to achieve the anticipated
synergies, the interest and other expenses from
our acquisitions could exceed the net income we
derive from the acquired operations, which could
reduce our net income. (3) Our products are sold
in a number of end markets which tend to be
cyclical in nature, including transportation,
building and construction, bath/pool and spa, and
electronics and appliances. A downturn in one or
more of these end markets could have a material
adverse effect on our sales and operating profit
and (4) Our implementation of planned
restructurings will impact our ability to realize
estimated cost savings. The actual cost savings
may differ from our estimates depending upon the
level of success of the implementation.
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Investment Highlights2nd Quarter 2005 Results

• Investment Highlights
• Market Leader in Sheet
• Diversified Products End-Use Markets
• New Focus on Cost Control
• Accelerate Cash Flow and Utilize Capital
  Expenditures to Create World Class Cost Structure
• New Technologies Product Developments

2nd Quarter 2005 Results Net Sales 378
mil. 31 increase over 04 Op. Earnings 6.3
mil. 24.3 excluding special items Diluted
EPS (. - )/sh. vs .41/sh last yr Quarterly
Dividend .12/share
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Sales Fluctuations (Last Six Quarters). . .
Internal Volume/Acquisition/Price-Mix
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Company Overview Diversity
of Products Markets
Key Base Materials... Comprehensive Product
Portfolio Full Year Estimate
Customer End Markets...Packaging Largest Sector
2nd Qtr Actual
Appliances Electronics 6
Other9
Other--Specialty 20
Polyethylene 25
Packaging24
Sign Advertising 6
ABS 10
Lawn Garden 7
PVC 10
Polystyrene 20
Rec. Leisure12
Transportation23
Polypropylene 15
Bldg. Const.13
2005 2nd Quarter Sales of 378 Million and 388
Million Pounds
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Sales Outlook
By End Market Application
The following represents rough guidelines for
the Outlook Ratings above Strong 3 or
higher growth Flat /-2 change Weak
-3 or more decline
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Focused GrowthOrganic Growth Via Innovative New
Products

Introduced New Class of Ten Alloy Plastics--April
2004 Introduced Volume II of Product
Transformations Brochure--June 2003
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Growth Thru Product Transformations

Recognizable PTs Over Last 8 Years
Packaging
Recreation Leisure
Transportation
Building Construction
Appliance Hardware
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Business Partnership Enhancement EffortNew
Centralized Product Development Center - 04

• A Spartech Centralized Product Development
  Center Located at Our Warsaw, Indiana Facility
  Opened June 2004
• Purpose To Develop New Products In One Plant
  Alleviating Stress On Manufacturing Sites
• To Double As Development Centers
• Structure Will House Two Sheet Lines, VEC Cell,
  Two Test Thermoformers To Allow For The Testing
  Of Various Materials

• Benefits Of Centralized R D Location Will
  Include
• Improved Production EfficienciesAt Current
  Manufacturing Sites
• Centralized Knowledge BaseOn New Product
  Development
• Further IntegrationOf S R And C C Groups
• Accelerate New Products To MarketBoth Potential
  PTs Samples

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Total Debt to Total Debt and Equity...Current
1.1 To 1.0 Ratio
2nd Qtr
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Operating Results for 2nd Qtr '05 Versus
'04Sales Up 31, Net Loss 80K
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Spartech Investment Highlights
Market Leader With Solid Improvement Strategy

• Leader In Key Custom Markets
• North American leader in Sheet with more than 30
  share of custom market
• Top 5 In Compounding segment
• Diversified End-Use Markets
• Largest is non-cyclical Packaging market 23 of
  sales
• Largest customer represents less than 5 of sales
• Continuing to expand end markets and product
  offerings
• New Focus on Cost Control
• Synergistic acquisitions
• Restructuring of operating locations
• Continuous cost improvement and Lean Enterprise
  initiative
• Renewed Focus on Return on Capital
• Emphasis on working capital management
• Capital expenditures for productivity cost
  improvement
• Accelerate cash flow to pay down debt
• New Technologies Development
• Invest in new technology at development centers
  Products (PDC) Materials (MDC)

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June 7, 2005

• 2nd Quarter 2005 Conference Call