1. Scotia Capital FINANCIALS SUMMIT CONFERENCE 2008 Réjean Robitaille, President & CEO Toronto – September 9, 2008

2. Symbol: LB, TSX Page 2 FORWARD-LOOKING STATEMENTS In this document and in other documents filed with Canadian regulatory authorities or in other communications, Laurentian Bank of Canada (the “Bank”) may from time to time make written or oral forward-looking statements within the meaning of applicable securities legislation, including statements regarding the Bank's business plan and financial objectives. These statements typically use the conditional, as well as words such as prospects, believe, estimate, forecast, project, expect, anticipate, plan, may, should, could, would or the negative of these terms or variations of them or similar terminology. By their very nature, forward-looking statements are based on assumptions and involve inherent risks and uncertainties, both general and specific in nature. It is therefore possible that the forecasts, projections and other forward-looking statements will not be achieved or will prove inaccurate. Although the Bank believes that the expectations reflected in these forward-looking statements are reasonable, it can give no assurance that these expectations will prove to have been correct. The Bank cautions readers against placing undue reliance on forward-looking statements when making decisions, as the actual results could differ appreciably from the opinions, plans, objectives, expectations, forecasts, estimates and intentions expressed in such forward-looking statements due to various material factors. Among other things, these factors include capital market activity, changes in government monetary, fiscal and economic policies, changes in interest rates, inflation levels and general economic conditions, legislative and regulatory developments, competition, credit ratings, scarcity of human resources and technological environment. The Bank cautions that the foregoing list of factors is not exhaustive. For more information on the risk, uncertainties and assumptions that would cause the Bank's actual results to differ from current expectations, please also refer to the Bank's public filings available at www.sedar.com. The Bank does not undertake to update any forward-looking statements, whether oral or written, made by itself or on its behalf, except to the extent required by securities regulations. NON-GAAP FINANCIAL MEASURES The Bank uses both generally accepted accounting principles (“GAAP”) and certain non-GAAP measures to assess its performance. Non-GAAP measures do not have any standardized meaning and are unlikely to be comparable to any similar measures presented by other companies. The Bank believes that these non-GAAP financial measures provide investors and analysts with useful information so that they can better understand financial results and analyze the Bank’s growth and profitability potential more effectively. For questions on this presentation, please contact: Gladys Caron, Vice-President, Public Affairs, Communications and Investor Relations Tel: 514 284-4500, extension 7511 Cell: 514 893-3963 gladys.caron@banquelaurentienne.ca

3. Symbol: LB, TSX Page 3 KEY STRENGTHS 1.Solid financial situation and lower risk profile 2.Efficient management approach 3.Improving results

4. Symbol: LB, TSX Page 4 SOLID FINANCIAL SITUATION AND LOWER RISK PROFILE  Strong balance sheet  Personal deposits represent more than 80% of total deposits  High level of liquidity  $4.5 billion in cash, deposits, securities accounts and repos  Strong capital ratios (as at July 31, 2008)  Tier 1 capital ratio: 10.1%  Total capital ratio: 12.1% Funding sources to support lending activities (July 31, 2008)

5. Symbol: LB, TSX Page 5 SOLID FINANCIAL SITUATION AND LOWER RISK PROFILE  Minimal exposure to ABCP  No direct exposure to U.S. mortgage market nor subprime market  Predominant retail loan book  High proportion of insured mortgages  Diversified geographically Loan portfolios (July 31, 2008) Geographic distribution of loans (October 31, 2007)

6. Symbol: LB, TSX Page 6 SOLID FINANCIAL SITUATION AND LOWER RISK PROFILE Evolution of gross and net impaired loans

7. Symbol: LB, TSX Page 7 EFFICIENT MANAGEMENT APPROACH  Growth engines focus with strong and distinctive positioning :  Retail & SME Quebec  B2B Trust  Real Estate Financing  All decisions and actions guided by our 3 priorities:  Profitability increase  Efficiency improvement  Human capital development

8. Symbol: LB, TSX Page 8 EFFICIENT MANAGEMENT APPROACH  Growth engines focus with strong and distinctive positioning :  Retail & SME Quebec  B2B Trust  Real Estate Financing  All decisions and actions guided by our 3 priorities:  Profitability increase  Efficiency improvement  Human capital development Strong execution is key

9. Symbol: LB, TSX Page 9 IMPROVING RESULTS Portfolio growth Last 12 months as at July 31, 2008 (consolidated) Strong growth in all portfolios Excluding securitization

10. Symbol: LB, TSX Page 10 IMPROVING RESULTS Q3 2008 financial highlights (1) The third quarter of 2008 included two significant items: a) net gain on the sale of securities of $7.6 million, or $7.4 million net of income taxes, resulting from the gain on the sale of the Montreal exchange shares of $12.9 million, partially offset by losses on other securities of $5.3 million; b) increase in the general provision for loan losses of $8.0 million, or $5.5 million net of income taxes.

11. Symbol: LB, TSX Page 11 IMPROVING RESULTS Business segments performance 3rd quarter 2008 (1) The business segment Other includes approximately 650 employees working in Treasury, Credit, Finance, Administration and Strategic Development, Corporate Affairs and Human Resources. (2) Percentage of net income contribution from the four business segments, excluding the segment Other. N.A.: non applicable. Retail & SME Quebec Real Estate & Commercial B2B TrustLBSOther (1) TOTAL Total revenue (growth Q3 2008 versus Q3 2007) $107.5 M + 7% $18.3 M + 19% $24.7 M + 4% $9.9 M + 16% $10.7 M N.A. $171.1 M + 13% Net income (growth Q3 2008 versus Q3 2007) $11.6 M + 11% $7.7 M + 42% $9.2 M + 14% $1.1 M + 91% $1.3 M N.A. $30.9 M + 33% Total net income contribution (2) 39%26%31%4%N.A.100%

12. Symbol: LB, TSX Page 12 IMPROVING RESULTS Total revenue & non-int. exp. ($ M) Net income ($ M) & EPS ($) Return on equity (ROE) Efficiency ratio Performance indicators In millions of $In $ Delivering good results on a sustainable basis

13. Symbol: LB, TSX Page 13 IMPROVING RESULTS Evolution of net interest margin

14. Symbol: LB, TSX Page 14 IMPROVING RESULTS  Last week, the Bank increased its quarterly dividend by 6%  Solid financial condition  Continued improvement in earnings  Management and board of directors’ confidence in the Bank’s future Dividend increase

15. Symbol: LB, TSX Page 15 IMPROVING RESULTS  DBRS recently upgraded all Laurentian Bank’s credit ratings.  Standard & Poor’s revised the Bank’s outlook from “stable” to “positive”. Credit ratings New DBRS ratingOld DBRS rating Short-Term InstrumentsR-1 (low)R-2 (high) Deposits & Senior DebtBBB (high)BBB Subordinated DebtBBBBBB (low) Cumulative Preferred SharesPfd-3 (high)Pfd-3 Non-Cumulative Preferred SharesPfd-3 (high)Pfd-3

16. Symbol: LB, TSX Page 16 2008 OBJECTIVES N.B. The objectives above are solely intended to provide the reader with information about how management measures its performance. It is not intended to disclose the Bank's expectations for future financial results. 2008 OBJECTIVES 9 MONTHS ENDED JULY 31, 2008 Return on equity9.5% to 10.5%10.9% Diluted net income per share$3.30 to $3.60$2.78 Total revenue+ 5% ($615 M)+ 9% ($477.7 M) Efficiency ratio74% to 72%69.7% Tier 1 capital ratioMinimum of 9.5%10.1%

17. Symbol: LB, TSX Page 17 2008 OBJECTIVES N.B. The objectives above are solely intended to provide the reader with information about how management measures its performance. It is not intended to disclose the Bank's expectations for future financial results. 2008 OBJECTIVES 9 MONTHS ENDED JULY 31, 2008 Return on equity9.5% to 10.5%10.9% Diluted net income per share$3.30 to $3.60$2.78 Total revenue+ 5% ($615 M)+ 9% ($477.7 M) Efficiency ratio74% to 72%69.7% Tier 1 capital ratioMinimum of 9.5%10.1% Long-term objective: sustainable double-digit return

18. Symbol: LB, TSX Page 18 DEVELOPMENT STRATEGIES 1.Organic growth resulting from particular emphasis on promising sectors that will accelerate profitability growth

19. Symbol: LB, TSX Page 19 DEVELOPMENT STRATEGIES 1.Organic growth resulting from particular emphasis on promising sectors that will accelerate profitability growth 2.Investments in information technology and infrastructures to ensure long-term development

20. Symbol: LB, TSX Page 20 DEVELOPMENT STRATEGIES 1.Organic growth resulting from particular emphasis on promising sectors that will accelerate profitability growth 2.Investments in information technology and infrastructures to ensure long-term development 3.Improvements and automation of processes and operations to further simplify clients’ banking experience and reduce administrative tasks

21. Symbol: LB, TSX Page 21 DEVELOPMENT STRATEGIES 1.Organic growth resulting from particular emphasis on promising sectors that will accelerate profitability growth 2.Investments in information technology and infrastructures to ensure long-term development 3.Improvements and automation of processes and operations to further simplify clients’ banking experience and reduce administrative tasks 4.Deployment of our highly customer- focused culture and development of our sales-performance culture

22. Symbol: LB, TSX Page 22 CONCLUSION  Results are improving quarter after quarter  Strategies and actions are well focused and targeted  Our 3 strategic priorities are well understood and remain at the forefront of all decisions and actions

23. Symbol: LB, TSX Page 23 CONCLUSION  Results are improving quarter after quarter  Strategies and actions are well focused and targeted  Our 3 strategic priorities are well understood and remain at the forefront of all decisions and actions  Our goal is clear: improve our performance on a sustainable and long-term basis

24. Symbol: LB, TSX Page 24 QUESTIONS & ANSWERS