Columbia Banking System, Inc. · NASDAQ:COLB

Columbia Banking System — Merger or Acquisition (March 2007)

12 slides from Columbia Banking System's merger presentation, Mar 30, 2007

  1. Slide 1: Investor Presentation: Strategically growing through acquisition

    COLB Mountain Bank Holding Company March 29, 2007 Investor Presentation Strategically growing through acquisition of

  2. Slide 2: Safe Harbor Statement

    Safe Harbor Statement This presentation may include forward-looking statements. Actual results may differ materially from those currently expected. Additional information concerning factors that could cause such differences is contained in Columbia’s Annual Report on Form 10-K and other filings with

  3. Slide 3: Branches

    Branches Clallam Jp Colembia Banking System, inc. (40 branches) @ Mowntain Bank Holding Company (6 branches) io Town Center Bancorp {5 branches) Jefferson Klickitat Beaverton? €) Gresham Hood River Figerd Sherman Wasco Clackamas incoin Polk Wheeler 2007 SNL Financial LC. All rights reserved ; Oe? 5

  4. Slide 4: Corporate Overview

    Corporate Overview 9.65% 9.69% 8.72% 52.9% 68.7% 59.9% 0.18% 0.00% 0.14% 5.74% 4.88% 4.49% 18.1% 10.3% 15.8% 1.68% 1.02% 1.30% $13 $22 $252 $103 $204 $2,023 $107 $165 $1,690 $133 $230 $2,553 5 6 40 Portland, OR Enumclaw, WA Tacoma, WA TE/TA LTM Efficiency NPA’s/Assets LTM NIM LTM ROATE LTM ROAA Equi

  5. Slide 5: Pro Forma Consolidated Overview

    Pro Forma Consolidated Overview $287 $2,330 $1,962 $2,916 51 Equity ($ mil) Deposits ($ mil) Net Loans ($ mil) Assets ($ mil) Branches Columbia Banking System, Inc. December 31, 2006

  6. Slide 6: Transaction Rationale – Mt. Rainier Bank

    Transaction Rationale – Mt. Rainier Bank Remarkable cultural fit Attractive geographic fit Opportunity to meaningfully complement and enhance product offerings Strong financial performance Quality organization, loyal customer and stable deposit base Accretive to 2008 EPS

  7. Slide 7: Integration Highlights – Mt. Rainier Bank

    Integration Highlights – Mt. Rainier Bank Successful acquisition blueprint Continuity of key employees, culture and brand name Similar operating infrastructure Complementary operating model and business focus Familiarity with markets Strong credit quality Continued board involvement Shared commitmen

  8. Slide 8: Key Terms – Mt. Rainier Bank

    $25.00 per Mountain Bank share (subject to adjustment) Fixed cash and fixed share value $11.25 in Cash (45%) $13.75 in Columbia Shares (55%) Key Terms – Mt. Rainier Bank $60 million for all Mountain Bank shares and options Regulatory approval and Mountain Bank Shareholder approval

  9. Slide 9: Transaction Rationale – Town Center

    Transaction Rationale – Town Center Logical geographic expansion Similar culture and core values Opportunity to meaningfully complement and enhance product offerings Strong financial performance Accretive to earnings in the first full year.

  10. Slide 10: Integration Highlights – Town Center

    Integration Highlights – Town Center Past successful acquisitions Continuity of key employees and culture Similar operating infrastructure Complementary operating model and business focus Additional platform for growth Strong credit quality Formation of advisory board

  11. Slide 11: Key Terms – Town Center

    Key Terms – Town Center $20.75 per Town Center share (at announcement) $9.382 in Cash (45% at announcement) 0.3391 shares of Columbia stock (55% at announcement) $45.1 million for all Town Center shares and options Regulatory approval and Town Center Shareholder approval

  12. Slide 12: Contact and forward-looking statements note

    COLB Melanie J. Dressel President & Chief Executive Officer P.O. Box 2156 Tacoma, WA 98401-2156 253-305-1911 [email protected] Columbia Note Regarding Forward Looking Statements The slides include forward-looking statements within the meaning of the Private Securities Litigation Reform Act o

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