CONFIDENTIAL PROJECT SURF FAIRNESS OPINION PRESENTATION TO THE SPECIAL COMMITTEE OF THE BOARD OF DIRECTORS March 20, 2000 SG COWEN SG SG Cowen board presentation received by the special committee at its meeting on March 20, 2000, conformed to reflect comments made at or prior to the time of such meeting. PROJECT SURF ----------------------------------------------------------- INTRODUCTION THE FOLLOWING MATERIALS WERE PREPARED SOLELY FOR DISCUSSION AT THE MEETING OF THE SPECIAL COMMITTEE OF THE BOARD OF DIRECTORS OF SURF ("COMPANY") SCHEDULED FOR MARCH 20, 2000. IN PREPARING THIS PRESENTATION, WE HAVE, WITH YOUR CONSENT, RELIED UPON INFORMATION PROVIDED BY SURF, DUNE AND OTHER PUBLICLY AVAILABLE INFORMATION. WE HAVE NOT INDEPENDENTLY VERIFIED ANY OF SUCH INFORMATION, AND HAVE RELIED ON IT BEING COMPLETE AND ACCURATE IN ALL MATERIAL RESPECTS. PLEASE NOTE THAT THIS PRESENTATION IS BASED ON THE BUSINESS AND OPERATIONS OF SURF AND DUNE AS REPRESENTED TO US AS OF THE DATE HEREOF, AND DOES NOT PURPORT TO TAKE INTO CONSIDERATION ANY INFORMATION OR EVENTS ARISING SUBSEQUENT TO SUCH DATE. SG COWEN MAKES NO REPRESENTATION OR WARRANTY THAT THERE HAS BEEN NO MATERIAL CHANGE IN THE INFORMATION PROVIDED OR REVIEWED BY US IN CONNECTION HEREWITH. THE INFORMATION CONTAINED HEREIN IS CONFIDENTIAL AND HAS BEEN PREPARED EXCLUSIVELY FOR THE BENEFIT AND USE OF THE SPECIAL COMMITTEE OF THE BOARD OF DIRECTORS OF THE COMPANY IN ITS CONSIDERATION OF THE PROPOSED TRANSACTION, AND MAY NOT BE USED FOR ANY OTHER PURPOSE OR REPRODUCED, DISSEMINATED, QUOTED OR REFERRED TO AT ANY TIME, IN ANY MANNER OR FOR ANY PURPOSE WITHOUT OUR PRIOR WRITTEN CONSENT. THIS PRESENTATION IS NOT FOR THE BENEFIT OF, AND DOES NOT CONVEY ANY RIGHTS OR REMEDIES TO, ANY HOLDER OF SECURITIES OF THE COMPANY OR ANY OTHER PERSON. THIS PRESENTATION IS SUBJECT TO THE ASSUMPTIONS, QUALIFICATIONS AND LIMITATIONS SET FORTH HEREIN AND IN THE FORM OF OUR FAIRNESS OPINION LETTER, INCLUDED AS AN APPENDIX TO THIS PRESENTATION, AND DOES NOT CONSTITUTE A RECOMMENDATION BY SG COWEN TO THE SPECIAL COMMITTEE OF THE BOARD OF DIRECTORS OR SHAREHOLDERS OF THE COMPANY ON HOW TO VOTE WITH RESPECT TO THE PROPOSED TRANSACTION. SG PROJECT SURF ----------------------------------------------------------- TABLE OF CONTENTS 1. EXECUTIVE SUMMARY 2. SURF OVERVIEW 3. DUNE OVERVIEW 4. VALUATION CONSIDERATIONS SG 1 PROJECT SURF ----------------------------------------------------------- EXECUTIVE SUMMARY SG 2 PROJECT SURF EXECUTIVE SUMMARY ----------------------------------------------------------- TRANSACTION SUMMARY STRUCTURE - Proposed acquisition of Surf Merger Purchase method of accounting CONSIDERATION - Dune to pay, in the aggregate, approximately $100.8 million(a) on a fully-diluted basis consisting of: $13.25 per Surf Callable Common Share in cash Warrant to purchase shares of Dune common stock valued at $2.50 WARRANT VALUE - For each share of Surf Callable Common Stock, shareholders will receive one warrant ("Warrant") representing the right to purchase a certain fraction of a share of Dune common stock Exercise price of Warrant will be calculated as the average closing price of Dune common stock for the 10 consecutive trading days ending on and including the day prior to the public announcement of the transaction terms (the "Measurement Price") multiplied by 1.25 Conversion ratio based on Black-Scholes Option Valuation Model with a 65% volatility factor, a 60 month term, and a risk free rate which is equal to the 5 year U.S. Treasury Note A fixed exchange ratio collar of 20% around the Measurement Price - If the average closing price of Dune common stock for the 10 consecutive trading days ending on the day prior to closing (the "Closing Price") is at least 20% greater than or at least 20% less than the Measurement Price (the "Collar Range"), the warrant value will be fixed while the exchange ratio will fluctuate - As of March 16, 2000, this collar will allow the warrant value to fluctuate between $1.81 and $3.22 (a) Based on Treasury Method calculation which includes 6.325 million Surf Callable Common shares outstanding per Surf Form 10-Q for the period ended September 30, 1999 and 0.737 million options outstanding at a weighted average exercise price of $14.13 per Surf management as of March 14, 2000 SG 3 PROJECT SURF EXECUTIVE SUMMARY ----------------------------------------------------------- TRANSACTION SUMMARY (CONTINUED) ILLUSTRATIVE WARRANT WARRANT VALUATION (BLACK-SCHOLES METHODOLOGY) VALUATION (Per share data in US$) Parameter Value ----------------------------------------------------------- Dune Stock Price (a) $14.53 Exercise Price (b) $18.16 Risk-free Rate (c) 6.457% Assumed Volatility (d) 65.0% Years to Expiration 5.0 Type of Option American Style ------------------------------------------------------------ WARRANT VALUE $8.08 ------------------------------------------------------------ CONVERSION RATIO ANALYSIS (Per share data in US$) Item Value ------------------------------------------------------------ Warrant Value $8.08 Value Offered $2.50 Conversion Ratio (e) 0.3096 ------------------------------------------------------------ MAXIMUM DUNE SHARES ISSUED (f) 1.981 ------------------------------------------------------------ PRO FORMA OWNERSHIP 4.169% ILLUSTRATIVE COLLAR ANALYSIS COLLAR ANALYSIS (Per share data in US$) Dune Stock Price at Closing ----------------------------------------------------------------------------------------------------- $6.00 $8.00 $10.00 $11.63 $13.08 $14.53 (a) $15.98 $17.44 $19.00 $21.00 $23.00 ----------------------------------------------------------------------------------------------------- Premium / (Discount) (58.7)% (44.9)% (31.2)% (20.0)% (10.0)% 0.0% 10.0% 20.0% 30.8% 44.5% 58.3% Warrant Value per Dune Share $2.09 $3.32 $4.68 $5.85 $6.95 $8.08 $9.23 $10.42 $11.71 $13.40 $15.12 Conversion Ratio 0.8652 0.5454 0.3872 0.3096 0.3096 0.3096 0.3096 0.3096 0.2753 0.2406 0.2132 Warrant Value per Surf Share $1.81 $1.81 $1.81 $1.81 $2.15 $2.50 $2.86 $3.22 $3.22 $3.22 $3.22 (a) Represents the average stock price for Dune Common Stock for the last ten consecutive trading days, ending on and including March 16, 2000 (b) Based on a 25% premium to the Dune Stock Price (c) Source: Bloomberg as of March 16, 2000; represents yield on 5 year U.S. Treasury Note (d) The implied volatility for Dune as of March 16, 2000 as per Bloomberg is 73.1% and the 5-year historical volatility for Dune as of February 29, 2000 as per Bloomberg is 59.8%; the 65% volatility in the warrant valuation is as set forth in the Merger Agreement (e) Determined by dividing $2.50 by $8.08; represents the number of Dune Common Stock shares each warrant is convertible into upon exercise (f) Assumes all warrants are exercised and no effect from the Treasury Method SG 4 PROJECT SURF EXECUTIVE SUMMARY ----------------------------------------------------------- TRANSACTION SUMMARY (CONTINUED) - Merger shall be terminated by: Mutual written consent of both parties By either party if: - Merger has not closed on or before September 30, 2000 - One party breaches the Agreement and Plan of Merger in a manner which would prevent it from satisfying its closing conditions - Any governmental entity prohibits the consummation of the Transaction By the Company if: - Surf Board of Directors has received an offer which is deemed by the Special Committee to constitute a proposal that is superior, from a financial point of view, and the Special Committee has promptly notified Dune of such proposal - Surf shall not initiate or solicit alternative acquisition or merger proposals Should the Company receive, on an unsolicited basis, a written proposal which is deemed by the Special Committee to be superior, from a financial point of view, Surf shall promptly notify Dune of such proposal SG 5 PROJECT SURF EXECUTIVE SUMMARY ------------------------------------------------------------- TRANSACTION SUMMARY (CONTINUED) - Fees and Expenses All costs and expenses incurred in connection with this Agreement and the consummation of the Transaction shall be paid by the party incurring such expenses - Farallon Capital Management LLC ("Farallon"), which owns approximately 19.5%(a) of Surf's Callable Common Shares outstanding, has agreed to vote in favor of the transaction - Proposed transaction conditional upon, among other things: Dune shall not have entered into any agreement for an acquisition proposal, as defined in the Agreement Warrants have been approved for listing on the Nasdaq National Market Expiration of HSR waiting period, if necessary Surf shareholder approval of: - Dune, as the sole holder of Surf Special Common Stock; and - At least 50% of the holders of the Company outstanding callable common shares (a) According to Form 13D filed January 11, 2000, Farallon owns approximately 1.374 million Surf Callable Common shares; for Surf, assumes 7.062 million fully-diluted shares outstanding which is based on 6.325 million Callable Common shares outstanding per Form 10-Q for the period ended September 30, 1999, 0.737 million options outstanding per Surf management as of March 14, 2000, and no effect from the Treasury Method SG 6 PROJECT SURF EXECUTIVE SUMMARY ----------------------------------------------------------- TRANSACTION OVERVIEW PRICE PER UNIT IMPLIED PREMIUM / (DISCOUNT) ANALYSIS PRICE PER SHARE OF (PER SHARE DATA IN US$) CALLABLE COMMON STOCK IMPLIED PREMIUM / (DISCOUNT) --------------------------------------- SURF DUNE ORIGINAL DUNE NEGOTIATED SHARE / UNIT PRICE OFFER OF $12.50 OFFER OF $15.75 - --------------------------------------------------------------------------------------------------------------------------------- Initial Offering Price - Units (December 17, 1997) (a) $16.00 (21.9)% (1.6)% Initial Offering Price Range - Callable Common Stock (December 17, 1997) (b) $12.00 - $14.00 4.2% - (10.7)% 31.3% - 12.5% Closing Price on February 11, 2000 - 1 Day Prior (c) $11.63 7.5% 35.5% Closing Price on February 4, 2000 - 1 Week Prior (c) $11.00 13.6% 43.2% Closing Price on January 14, 2000 - 1 Month Prior (c) $10.25 22.0% 53.7% 10-Day Average (d) $10.43 19.9% 51.1% Last 20 Days High (c) $12.13 3.1% 29.9% Last 20 Days Low (c) $8.94 39.9% 76.2% Last 40 Days High (c) $12.13 3.1% 29.9% Last 40 Days Low (c) $5.00 150.0% 215.0% LTM High (e) $12.13 3.1% 29.9% LTM Low (a)(e) $4.38 185.7% 260.0% (a) Represents combined price of Surf Callable Common Stock and Dune Warrant (b) Assumes a $12.00 to $14.00 offering price for the Callable Common Stock of Surf, based on a warrant valuation range of $2.00 to $4.00; $2.00 warrant valuation derived from Note 6 of Dune's Annual Report filed on Form 10-K which disclosed a fair market value for the warrants of $12.7MM; $4.00 warrant valuation provided by Surf management (c) Represents closing price prior to Dune's announcement on February 14, 2000 to acquire all the outstanding shares of Surf Callable Common Stock for $12.50 per share in cash (d) Represents the average stock price for Surf Callable Common Stock for the last ten consecutive trading days prior to Dune's announcement on February 14, 2000 to acquire all the outstanding Surf Callable Common Stock for $12.50 per share in cash (e) Last Twelve Months ended February 11, 2000, which was the last trading day prior to Dune's announcement of Dune's original offer to acquire all the outstanding Surf Callable Common Stock for $12.50 per share in cash SG 7 PROJECT SURF EXECUTIVE SUMMARY ------------------------------------------------------------- TRANSACTION OVERVIEW (CONTINUED) OVERVIEW OF DISCOUNTED CASH FLOW ANALYSIS (a) (PER SHARE DATA IN US$) RANGE OF DISCOUNT RATES ------------------------------------------------------------ 25.0% 27.5% 30.0% 32.5% 35.0% --------------------------------------------------------------------------------------------------------------- Implied Equity Value per Share Based on: (b) Discounted Cash Flow - Theoretical Analysis (c) $24.14 $18.62 $14.35 $11.00 $8.35 Discounted Cash Flow - Royalty Analysis (c) 20.0% $20.21 $17.65 $15.59 $13.92 $12.54 17.5% 18.12 15.85 14.03 12.56 11.35 15.0% 16.02 14.05 12.48 11.20 10.15 (a) Projections provided by Surf management (b) Implied equity value per share based on Treasury Method calculation which includes 6.325 million Surf Callable Common shares outstanding per Surf Form 10-Q for the period ended September 30, 1999 and 0.737 million options outstanding at a weighted average exercise price of $14.13 per Surf management as of March 14, 2000 (c) Cash flows discounted back to March 31, 2000; assumes Surf receives benefit of NOL's SG 8 PROJECT SURF EXECUTIVE SUMMARY ------------------------------------------------------------- TRANSACTION OVERVIEW (CONTINUED) IMPLIED PREMIUMS TO SURF STOCK PRICE (a) 1 DAY PRIOR (b)(c) 20-DAY AVERAGE (b)(c) ------------------------------------------------------------- [GRAPH] [GRAPH] Dune Offer ($15.75) 35.5% Dune Offer ($15.75) 56.0% Global Median 7.2% Global Median 7.3% Negotiated Median 58.2% Negotiated Median 60.9% Global Mean 25.8% Global Mean 28.6% Negotiated Mean 47.6% Negotiated Mean 52.8% 20-DAYS PRIOR (b)(c) --------------------------- [GRAPH] Dune Offer ($15.75) 53.7% Global Median 8.3% Negotiated Median 49.7% Global Mean 31.4% Negotiated Mean 56.7% (a) Premiums analysis for 1 Day Prior, 20-Day Average, and 20-Days Prior based on Surf's closing price on February 11, 2000, the average of Surf's closing prices from January 14, 2000 to February 11, 2000, and Surf's closing price on January 14, 2000, respectively (b) For precedent transactions, premiums analysis based on the closing target company stock price one day prior to announcement, the average of the closing target company stock prices 20 trading days prior to announcement, and the target company stock price 20 trading days prior to announcement (c) Premiums analysis excludes Centocor / Tocor transaction announced June 20, 1991 SG 9 PROJECT SURF EXECUTIVE SUMMARY ------------------------------------------------------------- NEXT STEPS AND TIMING NEXT STEPS AND TIMING ------------------------------------------------------------- APPROXIMATE TIMING EVENT WEEK(S) OF -------------------------------------------------------------------------------------------------------------- Execute Definitive Agreement and Announcement March 20 Prepare Proxy Statement / Prospectus March 20 Results of Surf Audit to be Delivered to the Special Committee of the Board of Directors March 27 File Proxy Statement / Prospectus April 2 Receive SEC Clearance Late April / Early May Mail Proxy to Shareholders Mid May Surf Special Meeting to Vote and Approve the Merger Late June Closing Late June SG 10 PROJECT SURF ----------------------------------------------------------- TRANSACTION CONSIDERATIONS SG 11 PROJECT SURF TRANSACTION CONSIDERATIONS ----------------------------------------------------------- MANAGEMENT'S POTENTIAL RISKS FOR SURF STAND-ALONE - Financing According to management's proposed budget for FY2000, the Company is projected to run out of money during the fourth quarter of FY2000 In order to complete the development of its products, Surf management estimates the Company will require approximately $166 million of additional investment capital - Further delays in the Company's clinical timeline Surf management believes commercialization of either BECLOMETHASONE or BUDESONIDE could be further delayed and increased investments could be incurred should the FDA require Surf to perform additional reliability studies on SURF-TM- - Implementation of two piece cassette in SURF-TM- There are no assurances that development of the two piece cassette will be completed according to the product launch schedule estimated in management's current projections - Dune Product Purchase Option Under the terms of the ALBUTEROL AND PRODUCT OPTION AGREEMENT, Dune has the option to acquire Surf's rights to the use of SURF-TM- with either BECLOMETHASONE or BUDESONIDE SG 12 PROJECT SURF TRANSACTION CONSIDERATIONS ----------------------------------------------------------- EVALUATION OF PRODUCT PURCHASE OPTION EVALUATION OF PRODUCT PURCHASE OPTION(a) (US$ IN MILLIONS, EXCEPT PER SHARE DATA) AS OF DECEMBER 31, 1999 BECLOMETHASONE BUDESONIDE --------------------------------------------------------------------------------------------------------- Product Specific Development Costs $21.6 $6.5 Platform Development and Clinical Supply Readiness 4.5 1.3 Project Management Fee 0.9 0.3 Market Development Research 2.9 0.9 Management Fee 6.9 2.1 --------------- -------------- 36.7 11.1 Initial Investment $170.0 $170.0 Interest Income 13.8 13.8 --------------- -------------- Total Initial Investment 183.8 183.8 Buyback Ratio 20.0% 6.0% Exercise Price at End of CY2001 (b) $36.76 $36.76 Buyback Price per Share $7.34 $2.21 Shares Outstanding (c) 6.401 6.401 --------------- -------------- TOTAL BUYBACK PRICE $47.0 $14.1 (a) Source: Surf management (b) Source: Surf IPO prospectus as of December 17, 1997 (c) Based on Treasury Method calculation which includes 6.325 million Surf Callable Common shares outstanding per Surf Form 10-Q for the period ended September 30, 1999 and 0.737 million options outstanding at a weighted average exercise price of $14.13 per Surf management as of March 14, 2000 SG 13 PROJECT SURF TRANSACTION CONSIDERATIONS ----------------------------------------------------------- SG 14 PROJECT SURF ----------------------------------------------------------- SURF OVERVIEW SG 15 PROJECT SURF OVERVIEW SURF ----------------------------------------------------------- BUSINESS OVERVIEW - Surf went public in December 1997, and focuses on the development of a dry powder pulmonary drug delivery system (SURF-TM-) as well as certain specified asthma and chronic obstructive pulmonary disease (COPD) drugs for use with the system - As of January 1, 2000, the Surf Units originally offered to the public on December 17, 1997 split into two publicly traded securities; a warrant to purchase one quarter of one share of Dune Common Stock with an exercise price of $54.84 and Surf Callable Common Stock Through its ownership of Surf Special Shares, Dune has the right to purchase the Surf Callable Common Stock - Range of exercise prices increases quarterly beginning January 1, 2000 in which Dune may purchase Surf Callable Common Stock for $25.26 per share MARKET - 1998 estimated US combined market for inhaled therapeutic drugs to treat asthma and COPD was $2.1 billion (a) PRODUCTS - Surf currently has two selected products in development for use with the SURF DELIVERY SYSTEM: BECLOMETHASONE - Steroid used to treat the inflammatory component of asthma and certain symptoms of COPD. Currently, management expects product launch in Q4 2001 BUDESONIDE - Second generation steroid used to treat the inflammatory component of asthma. Currently, management expects product launch in Q4 2002 (a) Source: Surf Form 10-K for the period ended December 31, 1998 SG 16 PROJECT SURF OVERVIEW SURF ----------------------------------------------------------- MANAGEMENT AND BOARD OF DIRECTORS (a) EXECUTIVE OFFICERS NAME POSITION ----------------------------------------------------------- David S. Kabakoff Chairman of the Board of Directors, President, and Chief Executive Officer Erle T. Mast Vice President and Chief Financial Officer BOARD OF DIRECTORS (b) NAME AGE POSITION ------------------------------------------------------------------------------------------------------------ SOL LIZERBRAM, RPH, D.O. 51 CHAIRMAN OF THE BOARD OF DIRECTORS OF HEALTHFUSION.COM WILLIAM H. RASTETTER, PH.D 51 CHAIRMAN OF THE BOARD OF DIRECTORS, PRESIDENT AND CEO OF IDEC PHARMACEUTICALS ALAIN B. SCHREIBER, M.D. 43 PRESIDENT, CHIEF EXECUTIVE OFFICER, AND DIRECTOR OF VICAL, INC. Cam L. Garner 50 Chairman of the Board of Directors and Chief Executive Officer of Dune David S. Kabakoff 51 Chairman, President, Chief Executive Officer of Surf and President, Dune Technologies (a) Source: Proxy statement mailed to shareholders on May 19, 1999 (b) Bold/italics denotes Special Committee member SG 17 PROJECT SURF OVERVIEW SURF ----------------------------------------------------------- SUMMARY OWNERSHIP PROFILE OWNERSHIP BY MAJOR CLASSIFICATION AS OF DECEMBER 31, 1999 OFFICER / DIRECTOR OWNERSHIP (a) David S Kabakoff 81,660 1.2% Erle T. Mast 22,000 0.3% Cam L. Garner 13,250 0.2% Sol Lizerbram 10,000 0.1% William H. Rastetter 10,000 0.1% Alan B. Schrelber 10,000 0.1% ---------- ------- 146,910 2.1% 13F FILING INSITUTIONS GREATER THAN 5% HOLDERS Farallon Capital Management LLC(b) 1,374,400 19.5% Elan International Services (c) 937,500 13.3% HBK Investments LP (d) 935,400 13.2% Lehman Brothers Holdings(e) 441,400 6.3% ---------- ------- 3,688,700 52.2% State Street Research and Management(f) 331,200 4.7% TOTAL INSTITUTIONAL HOLDERS 4,019,900 56.9% OTHER HOLDERS 2,894,690 41.0% ----------------------------------------------------------------------- TOTAL SHARES OUTSTANDING (G) 7,061,500 100.0% ----------------------------------------------------------------------- ----------------------------------------------------------------------- [GRAPH] Other Holders 41.0% Total Officers & Directors 2.1% Total Institutional Ownership 56.9% (a) Source: Proxy Statement mailed to shareholders on May 19, 1999 (b) Source: Surf Form 13D filed January 11, 2000 (c) Source: Surf Form 13D/A filed March 12, 1998 (d) Source: Surf Form 13D filed February 16, 2000 (e) Source: Surf Form 13G/A filed February 12, 1999 (f) Source: Surf Form 13G filed February 9, 1999 (g) Based on 6.325 million Callable Common shares outstanding per Form 10-Q for the period ended September 30, 1999 and 0.737 million options outstanding per Surf management as of March 14, 2000; excludes 1,000 Special Shares owned by Dune SG 18 PROJECT SURF OVERVIEW SURF ----------------------------------------------------------- OVER THE LAST TWELVE MONTHS, THE SURF UNITS AND THE SHARES OF CALLABLE COMMON STOCK HAVE TRADED TO A HIGH OF $13.00 ON FEBRUARY 18, 2000 (CALLABLE COMMON STOCK), A LOW OF $4.38 ON NOVEMBER 2, 1999 (UNIT), AND ON MARCH 16, 2000, SURF CALLABLE COMMON STOCK CLOSED AT $12.56 HISTORICAL STOCK PRICE PERFORMANCE (a) LATEST TWELVE MONTHS (b) [GRAPH] (a) On January 1, 2000, Surf Units separated into two publicly traded securities: one publicly-traded security which represents Surf Callable Common Stock and one publicly-traded security which represents a warrant to purchase one quarter of one share of Dune Common Stock; all stock price data prior to January 1, 2000 represents the price per Surf Unit as reported by Factset; on or after January 1, 2000, all stock price data represents the price per Surf Callable Common share as reported by Factset (b) Stock price data as of March 16, 2000 (c) A Unit includes one share of Surf Callable Common Stock and a warrant to purchase one-fourth of one share of Dune Common Stock; after January 1, 2000 unit price is based on price per Surf Callable Common share as reported by Factset plus price of Dune warrant as reported by Factset 19 SG PROJECT SURF OVERVIEW SURF ----------------------------------------------------------- HISTORICAL STOCK PRICE PERFORMANCE (a) SINCE THE COMPANY'S OFFERING OF UNITS ON DECEMBER 17, 1997, THE UNITS AND THE SHARES OF CALLABLE COMMON STOCK HAVE TRADED TO A HIGH OF $19.00 ON JANUARY 22, 1998 (UNIT), A LOW OF $4.38 ON NOVEMBER 2, 1999 (UNIT), AND ON MARCH 16, 2000, SURF CALLABLE COMMON STOCK CLOSED AT $12.56 SINCE SURF INITIAL PUBLIC OFFERING (b) (a) On January 1, 2000, Surf Units separated into two publicly traded securities: one publicly-traded security which represents Surf Callable Common Stock and one publicly-traded security which represents a warrant to purchase one quarter of one share of Dune Common Stock; all stock price data prior to January 1, 2000 represents the price per Surf Unit as reported by Factset; on or after January 1, 2000, all stock price data represents the price per Surf Callable Common share as reported by Factset (b) Stock price data as of March 16, 2000 (c) A Unit includes one share of Surf Callable Common Stock and a warrant to purchase one-fourth of one share of Dune Common Stock; after January 1, 2000 unit price is based on price per Surf Callable Common share as reported by Factset plus price of Dune warrant as reported by Factset SG 20 PROJECT SURF OVERVIEW SURF ------------------------------------------------------------------------ HISTORICAL STOCK PRICE PERFORMANCE DURING THE LAST TWELVE MONTHS, SURF HAS UNDERPERFORMED ITS PEER GROUP AND THE NASDAQ COMPOSITE SURF VS. SELECTED INDICES--LATEST TWELVE MONTHS(a) [GRAPH] (a) Stock price data as of March 16, 2000; on January 1, 2000, Surf Units separated into two publicly traded securities: one publicly-traded security which represents Surf Callable Common Stock and one publicly-traded security which represents a warrant to purchase one quarter of one share of Dune Common Stock; all stock price data prior to January 1, 2000 represents the price per Surf Unit as reported by Factset; on or after January 1, 2000, all stock price data represents the price per Surf Callable Common share as reported by Factset (b) Emerging Drug Delivery Companies Index includes: ALKS, ARDM, CIMA, EMIS, INHL, NOVN, NSTA SG 22 PROJECT SURF OVERVIEW SURF ------------------------------------------------------------------------ FINANCIAL REVIEW SG 23 PROJECT SURF OVERVIEW SURF ------------------------------------------------------------------------ PROJECTED REVENUE GROWTH(a) [GRAPH] (US$ in millions) 2001P 2002P 2003P 2004P 2005P 2006P 2007P Budesonide $12.9 $108.4 $168.4 $219.5 $271.5 $322.6 Beclomethasone $6.1 $30.3 $68.2 $88.9 $101.7 $116.4 $130.6 -------------------------------------------------------------- Total $6.1 $43.1 $176.6 $257.3 $321.2 $387.9 $453.2 (a) Source: Surf management as of February 17, 2000 SG 24 PROJECT SURF OVERVIEW SURF ------------------------------------------------------------------------ FINANCIAL REVIEW HISTORICAL AND PROJECTED FINANCIAL INFORMATION (US$ IN MILLIONS, EXCEPT PER SHARE DATA) HISTORICAL(A) EST.(B) PROJECTED (B) ---------------- --------- ----------------------------------------------------------------------- FISCAL YEAR ENDING DECEMBER 31, 1997(C) 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 - ----------------------------------------------------------------------------------------------------------------------------------- REVENUES Beclomethasone $0.0 $0.0 $0.0 $0.0 $6.1 $30.3 $68.2 $88.9 $101.7 $116.4 $130.6 Budesonide 0.0 0.0 0.0 0.0 0.0 12.9 108.4 168.4 219.5 271.5 322.6 ------- ------- ------- -------- -------- ------- ------ ------- ------- ------- ------- TOTAL REVENUES $0.0 $0.0 $0.0 $0.0 $6.1 $43.1 $176.6 $257.3 $321.2 $387.9 $453.2 TOTAL REVENUE GROWTH NM NM NM NM NM 611.6% 309.6% 45.7% 24.8% 20.8% 16.8% GROSS PROFIT $0.0 $0.0 $0.0 $0.0 $4.6 $35.0 $149.2 $220.3 $276.4 $335.6 $394.0 GROSS MARGIN NM NM NM NM 75.9% 81.2% 84.5% 85.6% 86.1% 86.5% 86.9% OPERATING EXPENSES Selling, General and Administrative 0.1 1.0 2.0 6.0 22.3 81.6 107.7 104.8 107.7 114.9 119.6 Research and Development (d) 7.0 50.8 39.5 45.6 48.1 7.6 0.0 0.0 0.0 0.0 0.0 Technology Licensing Fee 0.0 0.0 2.0 2.0 2.0 2.2 8.8 12.9 16.1 19.4 22.7 Other Operating Expenses 0.0 0.0 17.0 19.5 18.6 0.8 0.0 0.0 0.0 0.0 0.0 ------- ------- ------- -------- -------- ------- ------ ------- ------- ------- ------- Operating Income (7.1) (51.8) (60.4) (73.2) (86.5) (57.1) 32.6 102.6 152.7 201.3 251.8 OPERATING INCOME MARGIN NM NM NM NM NM NM 18.5% 39.9% 47.5% 51.9% 55.6% Interest and Other Income, Net (0.2) (8.2) (5.3) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------- ------- ------- -------- -------- ------- ------ ------- ------- ------- ------- PRE-TAX INCOME (6.9) (43.6) (55.1) (73.2) (86.5) (57.1) 32.6 102.6 152.7 201.3 251.8 Provision for Taxes 0.0 0.2 0.0 0.0 0.0 0.0 11.4 35.9 53.4 70.4 88.1 ------- ------- ------- -------- -------- ------- ------ ------- ------- ------- ------- NET INCOME ($6.9) ($43.8) ($55.1) ($73.2) ($86.5) ($57.1) $21.2 $66.7 $99.2 $130.8 $163.7 ======= ======= ======= ======== ======== ======= ====== ======= ======= ======= ======= NET MARGIN NM NM NM NM NM NM 12.0% 25.9% 30.9% 33.7% 36.1% Number of Shares Outstanding 6.325 6.325 6.325 6.325 6.325 6.325 6.325 6.325 6.325 6.325 6.325 Fully Diluted E.P.S. ($1.09) ($6.92) ($8.71) ($11.57) ($13.67) ($9.03) $3.35 $10.54 $15.69 $20.68 $25.87 (a) Per Surf Form 10-K for the period ended December 31, 1998 (b) Source: Surf management (c) Represents operating performance from September 23, 1997 (date of inception) through December 31, 1997 per Surf Form 10-K for the period ended December 31, 1998 (d) Projections exclude Albuterol Development Costs, New Project and System Enhancements, and Market Development Research SG 25 PROJECT SURF OVERVIEW SURF ------------------------------------------------------------------------ FINANCIAL REVIEW VARIANCE ANALYSIS - PRODUCT REVENUES (a) (US$ IN MILLIONS) Projected ---------------------------------------------------------- FISCAL YEARS ENDED DECEMBER 31, 1998 1999 2000 2001 2002 2003 2004 2005 - ----------------------------------------------------------------------------------------------------------------------- CURRENT Albuterol $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 Beclomethasone 0.0 0.0 0.0 6.1 30.3 68.2 88.9 101.7 Budesonide 0.0 0.0 0.0 0.0 12.9 108.4 168.4 219.5 Ipratropium 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Ipratropium / Albuterol Combination 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------- ------- ------- -------- -------- -------- -------- -------- TOTAL REVENUES $0.0 $0.0 $0.0 $6.1 $43.1 $176.6 $257.3 $321.2 ======= ======= ======= ======== ======== ======== ======== ======== AT THE OFFERING Albuterol $8.1 $28.8 $44.1 $62.8 $76.1 $99.9 $139.8 $170.3 Beclomethasone 0.0 7.0 41.9 60.6 65.9 71.7 78.0 84.8 Budesonide 0.0 0.0 0.0 24.7 67.7 95.9 136.8 154.9 Ipratropium 0.0 0.0 0.0 13.6 28.5 38.9 47.2 49.5 Ipratropium / Albuterol Combination 0.0 0.0 0.0 0.0 16.1 33.8 44.4 52.2 ------- ------- ------- -------- -------- -------- -------- -------- TOTAL REVENUES $8.1 $35.8 $85.9 $161.6 $254.4 $340.2 $446.2 $511.8 ======= ======= ======= ======== ======== ======== ======== ======== VARIANCE Albuterol ($8.1) ($28.8) ($44.1) ($62.8) ($76.1) ($99.9) ($139.8) ($170.3) Beclomethasone 0.0 (7.0) (41.9) (54.5) (35.7) (3.5) 10.8 16.9 Budesonide 0.0 0.0 0.0 (24.7) (54.9) 12.5 31.6 64.6 Ipratropium 0.0 0.0 0.0 (13.6) (28.5) (38.9) (47.2) (49.5) Ipratropium / Albuterol Combination 0.0 0.0 0.0 0.0 (16.1) (33.8) (44.4) (52.2) ------- ------- ------- -------- -------- -------- -------- -------- TOTAL VARIANCE ($8.1) ($35.8) ($85.9) ($155.6) ($211.3) ($163.6) ($188.9) ($190.6) ======= ======= ======= ======== ======== ======== ======== ======== - ----------- (a) Source: Surf management SG 26 PROJECT SURF ------------------------------------------------------------------------ DUNE OVERVIEW SG 27 PROJECT DUNE OVERVIEW SURF ------------------------------------------------------------------------- BUSINESS OVERVIEW - - Dune develops and markets prescription pharmaceutical products for the treatment of allergies, asthma, pneumonia, and related respiratory conditions for the US respiratory market MARKET - - Estimated size of targeted market for antihistamines, asthma / rhinitis therapies, cough / cold preparations and anti-infectives in 1998 was approximately $14 billion (a) - - Market size and fragmented nature as well as the identifiable base of physician prescribers allows Dune to achieve significant market penetration with a specialized sales force - As of December 31, 1998, Dune had approximately 401 pharmaceuticals sales representatives nationwide PRODUCTS - - Dune currently sells 11 prescription product lines and also owns a separate mail service pharmacy, Health Script Pharmacy Services - - SURF PULMONARY DRUG DELIVERY SYSTEM is currently under development which aerosolizes pharmaceuticals in a powder formulation for pulmonary delivery - On behalf of Surf, Dune is developing certain drug applications which are currently used to treat respiratory conditions, including two steroids, BECLOMETHASONE and BUDESONIDE - In September 1998, Dune announced an agreement with Eli Lilly to develop pulmonary delivery technology for insulin (a) Source: Dune Form 10-K for the period ended December 31, 1998 SG 28 PROJECT DUNE OVERVIEW SURF ------------------------------------------------------------------------- BUSINESS OVERVIEW (CONTINUED) OVERVIEW OF DUNE PRODUCT LINES (a) PRODUCT CATEGORY PRODUCT LINE COMMENTS - ------------------------------------------------------------------------------------------------------------------------------------ Asthma and COPD - TORNALATE - APPLICATION: Bronchodilator for bronchial asthma and for reversible bronchospasm - DELIVERY MECHANISM: Metered dose inhaler, solution for inhalation .................................................................................................................................... Allergy, Cough and Cold - ENTEX - APPLICATION: Symptomatic relief of sinusitis, bronchitis, pharyngitis, and coryza when these conditions are associated with nasal congestion and viscous mucus in the lower respiratory tract - DELIVERY MECHANISM: Tablets and capsules - Originated from Procter & Gamble - NASALIDE / NASAREL - APPLICATION: Treatment of nasal symptoms of seasonal or perennial rhinitis - DELIVERY MECHANISM: Nasal solution - Originated from Syntex .................................................................................................................................... Antibiotics - SEROMYCIN - APPLICATION: Treatment of active pulmonary and extrapulmonary tuberculosis - DELIVERY MECHANISM: Capsules, USP - FURADANTIN - APPLICATION: Treatment of urinary tract infections - DELIVERY MECHANISM: Oral suspension - CECLOR CD - APPLICATION: Treatment of mild / moderate bronchitis, pharyngitis and tonsillitis infections - DELIVERY MECHANISM: Extended release tablets - Originated from Eli Lilly - MAXIPIME - APPLICATION: Treatment of pneumonia, urinary tract, skin structure and abdominal infections - DELIVERY MECHANISM: Injection - Originated from Bristol-Myers Squibb - AZACTAM - APPLICATION: Treatment of urinary tract, lower respiratory, skin structure, abdominal and gynecologic infections, and septicemia - DELIVERY MECHANISM: Injection - Originated from Bristol-Myers Squibb SG 29 - CAPASTAT - APPLICATION: Treatment of pulmonary infections - DELIVERY MECHANISM: Injection - Originated from Eli Lilly - MYAMBUTOL - APPLICATION: Treatment of pulmonary tuberculosis - DELIVERY MECHANISM: NA - Originated from American Home Products .................................................................................................................................... (a) Source: Dune Form 10-K for the period ended December 31, 1998 and Dune website as of March 2000 30 PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- SUMMARY OWNERSHIP PROFILE OWNERSHIP BY MAJOR CLASSIFICATION AS OF DECEMBER 31, 1999 OFFICER / DIRECTOR OWNERSHIP (a) James C. Blair 270,900 0.6% Cam L. Garner 133,784 0.3% Joseph C. Cook, Jr. 72,999 0.2% Charles G. Smith 63,000 0.1% Gordon V. Ramseler 58,000 0.1% Julia Brown 51,727 0.1% Mitchel Woodbury 46,374 0.1% Herbert J. Conrad 34,000 0.1% David S. Kabakoff 27,809 0.1% David F. Hale 26,000 0.1% Charles W. Prettyman 15,896 0.0% Other 76,142 0.2% ----------------- -------------- 876,631 1.9% 13F FILING INSTITUTIONS (b) Safeco Asset Management Co. 2,668,300 5.9% American Intl Group Inc. 2,458,300 5.4% ----------------- -------------- 5,126,600 11.3% OTHER INSTITUTIONAL HOLDERS 25,432,715 55.8% TOTAL INSTITUTIONAL HOLDERS 30,559,315 67.1% OTHER HOLDERS 14,112,856 31.0% - ------------------------------------------------------------------------------------ TOTAL SHARES OUTSTANDING (c) 45,548,802 100.0% - ------------------------------------------------------------------------------------ [Graph] Other Holders 31.0% Total Officers & Directors 1.9% Total Institutional Ownership 67.1% (a) Source: Proxy Statement as of May 20, 1999 (b) Source: CDA/Spectrum as of December 31, 1999 (c) Assumes 45,548,802 fully diluted shares outstanding for the three months ended December 31, 1999 as reported in the Dune Form 10-Q for the three month period ended September 30, 1999 31 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- HISTORICAL STOCK PRICE PERFORMANCE DURING THE LAST TWELVE LATEST TWELVE MONTHS (a) MONTHS, DUNE'S STOCK PRICE HAS RANGED FROM A HIGH OF $19.13 ON JANUARY [Graphic] 13, 2000 TO A LOW OF $9.75 ON JULY 26, 1999 AND CLOSED AT $13.75 ON MARCH 16, 2000 (a) Stock price data as of March 16, 2000 32 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- HISTORICAL STOCK PRICE PERFORMANCE SINCE SURF'S CALLABLE SINCE SURF INITIAL PUBLIC OFFERING (a) COMMON STOCK OFFERING ON DECEMBER 17, 1997, DUNE'S STOCK PRICE HAS TRADED TO A HIGH OF $48.63 [Graphic] ON JANUARY 5, 1998, A LOW OF $8.00 ON OCTOBER 9, 1998 AND CLOSED AT $13.75 ON MARCH 16, 2000 (a) Stock price data as of March 16, 2000 33 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- HISTORICAL STOCK PRICE PERFORMANCE DURING THE LAST TWELVE DUNE VS. SELECTED INDICES - LATEST TWELVE MONTHS (a) MONTHS, DUNE HAS UNDERPERFORMED ITS PEER GROUP AND THE NASDAQ [Graphic] COMPOSITE (a) Stock price data as of March 16, 2000 (b) Emerging Drug Delivery Companies Index includes: ALKS, ARDM, CIMA, EMIS, INHL, NOVN, NSTA (c) Specialty Pharmaceutical Companies Index includes: ADRX, ALZA, BVF, ELN, FRX, IVX, JMED, MYL, SHPGY, WPI 34 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- HISTORICAL STOCK PRICE PERFORMANCE SINCE SURF'S CALLABLE DUNE VS. SELECTED INDICES - SINCE SURF INITIAL COMMON STOCK OFFERING PUBLIC OFFERING (a) ON DECEMBER 17, 1997, DUNE HAS UNDERPERFORMED ITS PEER GROUP AND THE [Graphic] NASDAQ COMPOSITE (a) Stock price data as of March 16, 2000 (b) Emerging Drug Delivery Companies Index includes: ALKS, ARDM, CIMA, EMIS, INHL, NOVN, NSTA (c) Specialty Pharmaceutical Companies Index includes: ADRX, ALZA, BVF, ELN, FRX, IVX, JMED, MYL, SHPGY, WPI 35 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- RESEARCH COMMUNITY SENTIMENT SUMMARY OF RECENT ANALYST COMMENTARY EPS ESTIMATES (a) DATE COMPANY RATING 2000E 2001E COMMENTS - ----------------------------------------------------------------------------------------------------------------------------------- 03/08/00 Prudential Securities Hold $0.26 $0.35 - "Product revenue is growing at a healthy clip, but earnings power has remained uncertain until recently . . . if Dune is insistent on closing the deal (Surf), it could potentially have to sweeten its bid, using more cash and pushing out the timeline. With the elimination of Surf, the business model going forward will now reflect Dune as a bona fide maker and marketer of drugs" - ----------------------------------------------------------------------------------------------------------------------------------- 02/29/00 Robertson Stephens Long-Term 0.91 1.25 - "Near term, we believe revenue will be driven by Attractive base product growth and incremental revenue from product acquisitions and co-promotion agreements. We believe that Dune's innovative dry powder inhaler will provide the catalyst for accelerating revenue and earnings growth in 2001-2002" - ----------------------------------------------------------------------------------------------------------------------------------- 02/24/00 Hambrecht & Quist Buy 0.92 0.32 - "We continue to like Dune as a contrarian/value play in the emerging pharma space. Using P/E is meaningless in 2000 because of Surf, but our number of $0.32 in 2001 is `real' and assumes no Surf" - "We feel very confident in our $0.92 EPS estimate for 2000 with the caveat that Surf should run out of its current $65 million in cash before the end of the year . . . we are modeling a drop in EPS to $0.32 in 2001, which assumes Dune does not infuse more money into Surf" - ----------------------------------------------------------------------------------------------------------------------------------- 02/23/00 Merrill Lynch Long-Term 0.30 0.35 - "Consolidation of Surf will eliminate most of Accumulate Dune's contract revenue, while R&D expense will be relatively unchanged. Our 2000 pro forma estimate is being adjusted to $0.30 per share to reflect the impact . . . our estimate also assumes that development of Surf albuterol will be discontinued" - "Dune's four key in-line products, along with the launch of Surf products in 2002 and 2003 should result in a rapid recovery in the Company's profitability" - ----------------------------------------------------------------------------------------------------------------------------------- (a) Source: First Call; otherwise, most recent analyst report 37 PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- RESEARCH COMMUNITY SENTIMENT (CONTINUED) SUMMARY OF RECENT ANALYST COMMENTARY EPS ESTIMATES (a) ------------------ DATE COMPANY RATING 2000E 2001E COMMENTS - ----------------------------------------------------------------------------------------------------------------------------------- 02/14/00 Sutro & Co. Buy $0.31 $0.60 - "If accepted, without Surf's revenues, we believe this year and next earnings will be reduced by about $0.60 and $0.55 per share, respectively. At the same time, management also announced that it will discontinue developing albuterol in the Surf delivery system, which should reduce its research expenditures somewhat. Following the buyback, however, the Company will be absorbing directly the development of BECLOMETHASONE and BUDESONIDE until the products are approved and launched in 2001 and 2002" - ----------------------------------------------------------------------------------------------------------------------------------- 01/25/00 CIBC World Markets Hold 0.90 1.00 - "Dune's 4Q99 results demonstrated continued momentum in key franchise product lines, placing the Company on target to meet management's stated EPS growth objectives for 2000" - ----------------------------------------------------------------------------------------------------------------------------------- FIRST CALL MEAN (b) $0.92 $0.52 =================================================================================================================================== (a) Source: First Call; otherwise, most recent analyst report (b) Source: First Call as of March 16, 2000 38 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- TRADING STATISTICS OF SELECTED PUBLICLY TRADED COMPANIES Price Enterprise Value ------------------------------ as a Multiple of: Current 52 week 52 week Market Enterprise ----------------------- Company (FYE) (3/16/00) High Low Value Value(a) Sales EBITDA EBIT - ----------------------------------------- --------- ------- ------- -------- ---------- ------- -------- ------ SELECTED EMERGING DRUG DELIVERY COMPANIES Alkermes, Inc. (3/31) $104.94 $197.00 $21.63 $2,758.4 $2,639.6 122.36x NM NM Anesta Corp. (12/31) 20.13 27.63 7.38 267.7 198.4 30.45 NM NM Aradigm Corp. (12/31) 27.38 46.75 5.63 432.3 412.5 24.53 NM NM CIMA Labs, Inc. (21/31) 18.02 25.63 2.44 173.2 172.6 12.89 102.7x NM Emisphere Technologies, Inc. (7/31) 61.69 84.50 6.50 1,319.1 1,124.8 155.66 NM NM Inhale Therapeutic Systems (12/31) 80.38 141.50 22.88 2,022.3 1,884.2 45.56 NM NM Noven Pharmaceuticals, Inc. (12/31) 12.13 27.25 4.25 271.7 263.2 8.32 43.8 67.5x High 155.66x 102.7x 67.5x Median 30.45 73.2 67.5 Mean 57.11 73.2 67.5 Low 8.32 43.8 67.5 Dune $13.75 $19.13 $9.75 $626.3 $651.0 2.16x 8.1x 13.3x Price/Earnings Estimated CY2001 P/E/ ----------------------------------- Long-term Estimated LT Company (FYE) LTM 2000E(b) 2001E(b) EPS Growth(c) EPS Growth(c) - ----------------------------------------- -------- ---------- --------- -------------- --------------- SELECTED EMERGING DRUG DELIVERY COMPANIES Alkermes, Inc. (3/31) NM NM NM 334.0% NA Anesta Corp. (12/31) NM NM 36.6x NA NA Aradigm Corp. (12/31) NM NM NM NA NA CIMA Labs, Inc. (21/31) NM 69.3x 26.1 NA NA Emisphere Technologies, Inc. (7/31) NM NM NA NA NA Inhale Therapeutic Systems (12/31) NM NM NM NA NA Noven Pharmaceuticals, Inc. (12/31) 25.4x 26.9 15.7 40.0 0.4x High 25.4x 69.3x 36.6x 334.0% 0.4x Median 25.4 48.1 26.1 187.0 0.4 Mean 25.4 48.1 26.1 187.0 0.4 Low 25.4 26.9 15.7 40.0 0.4 Dune 19.4x 14.9x 26.4x 32.3% 0.8x (a) Enterprise value defined as market value plus Total Debt less Cash (b) Estimates are calendar year end; all estimates are SG Cowen when available; otherwise First Call (c) Long-term growth rates are from IBES 39 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- TRADING STATISTICS OF SELECTED PUBLICLY TRADED COMPANIES (CONTINUED) Price Enterprise Value ------------------------------ as a Multiple of: Current 52 week 52 week Market Enterprise ----------------------- Company (FYE) (3/16/00) High Low Value Value(a) Sales EBITDA EBIT - ----------------------------------------- --------- ------- ------- -------- ---------- ------- -------- ------ SELECTED SPECIALTY PHARMACEUTICAL COMPANIES Alza Laboratories (12/31) $38.19 $53.56 $26.50 $3,967.7 $4,681.7 5.88x 18.0x 24.0x Andrx Corporation (12/31) 94.00 114.50 30.81 3,060.1 2,986.7 7.37 37.6 40.3 Blovall Corporation International (12/31) 50.56 71.50 16.19 2,953.2 2,846.7 16.13 33.2 37.7 Elan Corporatio, plc (12/31) 46.00 46.50 21.25 12,857.7 13,100.8 13.04 34.2 42.6 Forest Laboratories (3/31) 83.63 84.75 41.25 7,394.2 7,117.0 8.82 39.4 45.7 IVAX Corporation (12/31) 26.63 28.63 7.38 4,235.5 4,224.7 6.31 37.6 54.1 Jones Pharma, Inc. (12/31) 41.13 53.00 13.22 2,747.0 2,585.4 21.21 36.8 40.1 Mylan Laboratories (3/31) 30.00 30.94 17.06 3,903.8 3,610.8 4.71 14.4 16.8 Shire Pharmaceutical Group (12/31) 54.50 70.00 18.63 4,585.8 4,572.5 11.39 52.1 77.3 Watson Pharmaceuticals (12/31) 40.44 47.50 26.50 3,943.3 3,981.3 5.78 13.8 15.4 High 21.21x 52.1x 77.3x Median 8.10 35.5 40.2 Mean 10.06 31.7 39.4 Low 4.71 13.8 15.4 Global High 155.66x 102.7x 77.3x Global Median 12.89 37.2 40.3 Global Mean 29.44 38.6 42.0 Global Low 4.71 13.8 15.4 Dune $13.75 $19.13 $9.75 $626.3 $651.3 2.16x 8.1x 13.3x Price/Earnings Estimated CY2001 P/E/ ----------------------------------- Long-term Estimated LT Company (FYE) LTM 2000E(b) 2001E(b) EPS Growth(c) EPS Growth(c) - ----------------------------------------- -------- ---------- --------- -------------- --------------- Alza Laboratories (12/31) 29.8x 24.6x 19.9x 20.8% 1.0x Andrx Corporation (12/31) 61.1 72.9 38.5 51.5 0.7 Blovall Corporation International (12/31) 40.2 31.6 24.8 31.0 0.8 Elan Corporatio, plc (12/31) 37.1 30.7 25.3 23.3 1.1 Forest Laboratories (3/31) 59.0 55.4 36.4 27.6 1.3 IVAX Corporation (12/31) 63.9 42.3 34.6 31.7 1.1 Jones Pharma, Inc. (12/31) 62.7 46.7 39.5 25.5 1.6 Mylan Laboratories (3/31) 26.9 21.0 17.9 19.2 0.9 Shire Pharmaceutical Group (12/31) 110.5 56.2 41.6 32.5 1.3 Watson Pharmaceuticals (12/31) 24.2 19.9 16.6 21.0 0.8 High 110.5x 72.9x 41.6x 51.5% 1.6x Median 49.6 36.9 29.9 26.5 1.0 Mean 51.5 40.1 29.5 28.4 1.1 Low 24.2 19.9 16.6 19.2 0.7 Global High 110.5x 72.9x 41.6x 334.0% 1.6x Global Median 40.2 36.9 26.1 29.3 1.0 Global Mean 49.2 41.5 28.7 54.8 1.0 Global Low 24.2 19.9 15.7 19.2 0.4 Dune 19.4x 14.9x 26.4x 32.3% 0.8x (a) Enterprise value defined as market value plus Total Debt less Cash (b) Estimates are calendar year end; all estimates are SG Cowen when available; otherwise First Call (c) Long-term growth rates are from IBES 40 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- FINANCIAL REVIEW HISTORICAL AND PROJECTED FINANCIAL INFORMATION (US$ IN MILLIONS, EXCEPT PER SHARE DATA) HISTORICAL(a) PROJECTED(b) ---------------------------- ----------------------------------------------- CAGR FISCAL YEAR ENDING DECEMBER 31, 1997 1998 1999 2000 2001 2002 2003 2004 2000P-2004P - ------------------------------------------------------------------------------------------------------------------------------ Revenue $181.3 $199.2 $301.4 $344.1 $329.7 $395.6 $497.4 $597.1 14.8% % GROWTH NM 9.8 51.4 14.2 (4.2) 20.0 25.7 20.0 Gross Profit 149.2 169.9 255.6 287.1 260.3 308.2 388.0 465.9 12.9 % OF REVENUE 82.3 85.3 84.8 83.4 79.0 77.9 78.0 78.0 EBITDA (c) 74.8 42.4 80.1 95.9 58.8 83.2 161.0 226.7 24.0 % OF REVENUE 41.3 21.3 26.6 27.9 17.8 21.0 32.4 38.0 EBIT 59.6 21.9 49.1 60.6 24.9 42.6 109.9 165.4 28.5 % OF REVENUE 32.9 11.0 16.3 17.6 7.6 10.8 22.1 27.7 Net Income 21.8 22.1 32.4 42.4 16.4 28.0 75.2 114.1 28.1 % OF REVENUE 12.0 11.1 10.8 12.3 5.0 7.1 15.1 19.1 Earnings Per Share $0.50 $0.46 $0.71 $0.92 $0.35 $0.60 $1.60 $2.40 27.0 % GROWTH NM (7.0) 53.6 30.1 (61.6) 69.6 165.7 50.1 ----------------------------------------------------------------------------------------------- Merrill Lynch Adjusted EPS(d) $0.30 $0.35 $0.70 $1.60 $2.40 ----------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------- First Call Mean Estimates(e) $0.92 $0.52 $0.68 NA NA ----------------------------------------------------------------------------------------------- (a) Per Dune Form 10-K for the period ended December 31, 1998 and Press release dated January 24, 2000; excludes nonrecurring and extraordinary items (b) Per Merrill Lynch Research Report as of February 7, 2000; assumes Dune purchases Surf in FY 2001; excludes impact of multi-year Allergan agreement announced February 23, 2000 (c) Assumes Depreciation and Amortization expense for the years FY 1999 to FY 2004 as a constant percentage of revenues as FY 1998 (d) Per Merrill Lynch Research Report as of February 23, 2000; assumes Dune purchases Surf in FY 2000; includes impact of multi-year Allergan agreement announced February 23, 2000 (e) First Call Mean Estimates as of March 13, 2000 41 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- SUMMARY CAPITALIZATION SELECTED BALANCE SHEET ITEMS (US $ IN MILLIONS) DECEMBER 31, SEPTEMBER 30, ACCOUNT 1999 (a) % OF TOTAL 1999 (b) % OF TOTAL - -------------------------------------------------------------------------------------------------------------------------- Cash and Equivalents $274.4 --- $266.7 --- Current Portion of Long-Term Debt NA NA 3.9 0.5% Long-Term Debt (c) 287.5 39.4% 287.5 39.8% ---------- ---------- -------- ------- Total Debt (c) 287.5 39.4% 291.4 40.4% Stockholders' Equity 441.7 60.6% 430.3 59.6% ---------- ---------- -------- ------- Total Capitalization $729.2 100.0% $721.8 100.0% ========== ========== ======== ======= (a) Source: Press release dated January 24, 2000 (b) Source: Form 10-Q for the period ended September 30, 1999 (c) Includes $287.5 million of convertible subordinated notes due July 15, 2002 42 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- VALUATION CONSIDERATIONS 43 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- HISTORICAL STOCK PRICE ANALYSIS 44 SG PROJECT DUNE OVERVIEW SURF ---------------------------------------------------------------- HISTORICAL STOCK PRICE ANALYSIS RELATIVE STOCK PRICE PERFORMANCE [Graphic] Surf vs. Dune - Latest Twelve Months (a) (a) Stock price data as of March 16, 2000; on January 1, 2000, Surf Units separated into two publicly traded securities: one publicly-traded security which represents Surf Callable Common Stock and one publicly-traded security which represents a warrant to purchase one quarter of one share of Dune Common Stock; all stock price data prior to January 1, 2000 represents the price per Surf Unit as reported by Factset; on or after January 1, 2000, all stock price data represents the price per Surf Callable Common share as reported by Factset 45 SG PROJECT HISTORICAL STOCK PRICE ANALYSIS SURF ---------------------------------------------------------------- RELATIVE STOCK PRICE PERFORMANCE SURF VS. DUNE - SINCE SURF INITIAL PUBLIC OFFERING (a) SINCE SURF'S CALLABLE COMMON STOCK OFFERING ON DECEMBER 17, 1997, DUNE HAS GENERALLY UNDERPERFORMED SURF 46 SG PROJECT SURF ---------------------------------------------------------------- PRECEDENT TRANSACTIONS 48 SG PROJECT PRECEDENT TRANSACTIONS SURF ---------------------------------------------------------------- IMPLIED PREMIUMS PAID ANALYSIS Implied Premiums to Surf Stock Price (a) [GRAPH] [GRAPH] 1 Day Prior (b)(c) 20-Day Average (b)(c) Dune Offer ($15.75) 35.5% Dune Offer ($15.75) 56.0% Global Median 7.2% Global Median 7.3% Negotiated Median 58.2% Negotiated Median 60.3% Global Mean 25.8% Global Mean 28.6% Negotiated Mean 47.6% Negotiated Mean 52.8% [GRAPH] 20-Days Prior (b)(c) Dune Offer ($15.75) 53.7% Global Median 8.3% Negotiated Median 49.7% Global Mean 31.4% Negotiated Mean 56.7% (a) Premiums analysis for 1 Day Prior, 20-Day Average, and 20-Days Prior based on Surf's closing price on February 11, 2000, the average of Surf's closing prices from January 14, 2000 to February 11, 2000, and Surf's closing price on January 14, 2000, respectively (b) For precedent transactions, premiums analysis based on the closing target company stock price one day prior to announcement, the average of the closing target company stock prices 20 trading days prior to announcement, and the target company stock price 20 trading days prior to announcement (c) Premiums analysis excludes Centocor / Tocor transactions; announced June 20, 1991 49 SG PROJECT PRECEDENT TRANSACTIONS SURF ---------------------------------------------------------------- PROFILE OF PRECEDENT TRANSACTIONS PROFILE OF INITIAL OFFERINGS (US$ IN MILLIONS, EXCEPT PER SHARE DATA) EFFECTIVE OFFERING OFFER INITIAL INVESTOR CONTRIBUTION DATE ENTITY FORMED PARENT COMPANY PRICE(a) VALUE(a) CAPITALIZATION(a) AS A % OF INITIAL CAP. - ------------------------------------------------------------------------------------------------------------------------------------ 06/18/98 CliniChem BioChem Pharma Inc. NA(b) NA(b) $150.0 0.0% Development, Inc. 09/18/97 Crescendo ALZA Corp. NA(c) NA(c) 300.0 0.0 Pharmaceuticals Corp. 02/05/98 Neuralab Ltd. Elan Corp. $40.00 $50.0 50.0 100.0 11/20/96 Axogen Ltd. Elan Corp. 18.00 95.2 95.2 100.0 05/05/95 Allergan Ligand Retinoid Allergan / Ligand 10.00 32.5 100.0 32.5 Therapeutics 12/21/93 PerSeptive PerSeptive Biosystems Inc. 22.00 58.2 58.2 100.0 Technologies II Corp. 07/14/93 Advanced Therapeutics Elan Corp. 20.00 78.5 113.5 69.2 Systems Ltd. 05/21/93 Therapeutic Discovery Corp. ALZA Corp. NA(d) NA(d) 250.0 0.0 04/28/92 Neozyme II Corp. Genzyme Corp. 35.00 84.5 84.5 100.0 02/13/92 Cytorad Inc. Cytogen Corp. 10.00 40.3 40.3 100.0 01/21/92 Tocor I Inc. Centocor Inc. 40.00 90.0 90.0 100.0 11/27/91 Aramed Inc. Gensia Pharmaceuticals Inc. 20.00 57.5 57.5 100.0 05/23/91 SciGenics, Inc. Genetics Institute Inc. 22.00 46.0 46.0 100.0 11/14/90 Drug Research Corp. Elan Corporation 11.00 43.2 43.2 100.0 10/26/90 Neozyme Corp. Genzyme Corp. 23.00 46.0 46.0 100.0 11/17/89 Receptech Corp. Immunex Corp. 12.00 27.5 27.5 100.0 07/11/89 Tocor, Inc. Centocor Inc. 12.00 34.5 34.5 100.0 12/12/88 Bio-Electro Systems, Inc. ALZA Corp. 11.00 35.7 35.7 100.0 50 SG - --------------------------------------------------------------------------------------------------------------------------------- 12/17/97 SURF DEVELOPMENT CORP. II DUNE $16.00 $101.2 $176.2 57.4% 10/29/95 SURF DEVELOPMENT CORP. DUNE $30.00 $28.0 $ 41.0 68.3 - --------------------------------------------------------------------------------------------------------------------------------- (a) Source: Initial Public Offering documents filed with the Securities and Exchange Commission and Securities Data Corporation as of February 24, 2000 (b) Each holder of one BioChem Common Stock has the right to receive 40 Clinichem shares (c) Each holder of ALZA Common Stock has the right to receive one Crescendo share for every 20 shares of ALZA common stock owned; one Crescendo share for every 36 shares of ALZA Common Stock into which the holder's 5% Debentures are convertible; and one Crescendo share for every 37 shares of ALZA common stock into which the holder's 5 1/4% Debentures are convertible (d) Each holder of ALZA Common Stock has the right to receive one Therapeutic Discovery Corp. unit for every 10 shares of ALZA Common Stock owned 51 PROJECT PRECEDENT TRANSACTIONS SURF ----------------------------------------------------------------- PROFILE OF PRECEDENT TRANSACTIONS - EXERCISED - ------------------------------------------------------------------------------- PROFILE OF PURCHASE TRANSACTIONS - EXERCISED (US$ IN MILLIONS, EXCEPT PER SHARE DATA) - ------------------------------------------------------------------------------- EXERCISE PRICE PREMIUM ANALYSIS ANNOUNCE EXERCISE AT TIME OF PURCHASE --------------------------- DATE DATE TARGET ACQUIROR ANNOUNCEMENT PRICE 1-DAY 20-DAY AVG. 20-DAY - ---------------------------------------------------------------------------------------------------------------------------------- 01/10/00 Pending CliniChem Development, Inc. BioChem Pharma Inc. NA NA NA NA NA 11/29/99 Pending Neuralab Ltd. Elan Corp. NA $61.01 NA NA NA 11/29/99 01/01/00 Axogen Ltd. Elan Corp. $34.56 34.56 5.5% 7.3% 7.6% 09/24/97 11/25/97 Allergan Ligand Retinoid Therapeutics Allergan / Ligand 21.97 21.97 13.0 12.5 18.4 09/10/96 10/30/96 Advanced Therapeutics Systems Ltd. Elan Corp. 36.00 36.00 5.1 5.7 6.7 08/26/97 09/30/97 Therapeutic Discovery Corp. ALZA Corp. 12.30 12.30 2.5 3.1 4.7 05/04/93 07/03/93 Drug Research Corp. Elan Corp. 21.00 21.00 12.8 13.5 18.3 10/18/93 12/22/93 Neozyme Corp. Genzyme Corp. 45.50 49.00 NA NA NA 12/15/92 02/19/93 Receptech Corp. Immunex Corp. 26.00 26.00 7.2 7.2 8.3 06/20/91 07/02/91 Tocor, Inc. Centocor Inc. 24.00 24.00 (60.5) (60.0) (56.8) 11/12/91 02/08/92 Bio-Electro Systems, Inc. ALZA Corp. 23.00 23.00 4.0 6.2 4.5 ------------------------------------------------------------------------------- EXERCISED MEDIAN (b) 5.5% 7.2% 7.6% EXERCISED MEAN (b) 7.2% 7.9% 9.8% ------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------------------------------------------- 2/14/00(c) PENDING SURF DEVELOPMENT CORP. II DUNE $25.26 $15.75 35.5% 56.0% 53.7% 10/10/97 12/19/97 SURF DEVELOPMENT CORP. DUNE $46.88 $48.97 NA NA NA - ----------------------------------------------------------------------------------------------------------------------------------- PRICE PERFORMANCE SINCE TARGET IPO ANNOUNCE EXERCISE PURCHASE PRICE/ -------------------- DATE DATE TARGET ACQUIROR IRR IPO PRICE TARGET(a) PARENT - --------------------------------------------------------------------------------------------------------------------------- 01/10/00 Pending CliniChem Development, Inc. BioChem Pharma Inc. NA NA NA NA 11/29/99 Pending Neuralab Ltd. Elan Corp. NA NA NA NA 11/29/99 01/01/00 Axogen Ltd. Elan Corp. 23.3% 1.9x 81.9% 97.4% 09/24/97 11/25/97 Allergan Ligand Retinoid Therapeutics Allergan / Ligand 36.0 2.2 94.4 26.3 09/10/96 10/30/96 Advanced Therapeutics Systems Ltd. Elan Corp. 19.5 1.8 71.3 112.1 08/26/97 09/30/97 Therapeutic Discovery Corp. ALZA Corp. NA NA NA 4.4 05/04/93 07/03/93 Drug Research Corp. Elan Corp. 27.8 1.9 69.3 176.5 10/18/93 12/22/93 Neozyme Corp. Genzyme Corp. NA NA (33.7) 101.4 12/15/92 02/19/93 Receptech Corp. Immunex Corp. 26.8 2.2 102.1 141.9 06/20/91 07/02/91 Tocor, Inc. Centocor Inc. 42.0 2.0 406.3 273.0 11/12/91 02/08/92 Bio-Electro Systems, Inc. ALZA Corp. 26.3 2.1 101.1 261.5 ----------------------------------------------------------------------- EXERCISED MEDIAN (b) 26.8% 2.0X 88.2% 101.4% EXERCISED MEAN (b) 28.8% 2.0X 111.6% 108.8% ----------------------------------------------------------------------- - --------------------------------------------------------------------------------------------------------------------------- 02/14/00(c) PENDING SURF DEVELOPMENT CORP. II DUNE (0.7)% 1.0X (17.0)% (68.5)% 10/10/97 12/19/97 SURF DEVELOPMENT CORP. DUNE 30.3% 1.6X NA 242.2% - --------------------------------------------------------------------------------------------------------------------------- (a) In cases where warrant(s) has not separated from common stock, represents unit performance (b) Premiums analysis excludes Centocor / Tocor transaction announced June 20, 1991 (c) Represents date Dune announced its offer to Surf Board of Directors to purchase Surf Callable Common Stock for $12.50 per share in cash 52 SG PROJECT PRECEDENT TRANSACTIONS SURF ----------------------------------------------------------------- PROFILE OF PRECEDENT TRANSACTIONS - NEGOTIATED - ------------------------------------------------------------------------------- PROFILE OF PURCHASE TRANSACTIONS - NEGOTIATED (US$ IN MILLIONS, EXCEPT PER SHARE DATA) - ------------------------------------------------------------------------------- EX. PRICE DISCOUNT OF ANNOUNCE EXERCISE AT TIME OF PUR. PUR. PRICE TO DATE DATE TARGET ACQUIROR ANNOUNCE. PRICE EX. PRICE - ---------------------------------------------------------------------------------------------------------- 11/01/95 03/13/96 PerSeptive Tech. II PerSeptive Biosystems Corp. Inc. $33.83 $13.96 (58.7)% 09/06/96 10/29/96 Neozyme II Corp. Genzyme Corp. 117.00 45.00 (61.5) 07/29/94 02/27/95 Cytorad Inc. Cytogen Corp. 19.50 8.81 (54.8) 12/10/93 03/11/94 Tocor II Inc. Centocor Inc. 58.00 40.00 (31.0) 06/16/95 11/22/95 Aramed Inc. Gensia Pharmaceuticals Inc. 55.40 12.75 (77.0) 06/22/95(b)12/07/95 SciGenics, Inc. Genetics Institute Inc. 69.83 14.00 (80.0) ----------------------------------------------------------- NEGOTIATED MEDIAN (60.1)% NEGOTIATED MEAN (60.5)% ----------------------------------------------------------- - ---------------------------------------------------------------------------------------------------------- 02/14/00(c)PENDING SURF DEVELOPMENT CORP. II DUNE $25.26 $15.75 (37.6)% 10/10/97 12/19/97 SURF DEVELOPMENT CORP. DUNE $46.88 $48.97 4.5% - ---------------------------------------------------------------------------------------------------------- PRICE PERFORMANCE PREMIUM ANALYSIS SINCE TARGET IPO ANNOUNCE EXERCISE --------------------------- PUR. PRICE/ ----------------- DATE DATE TARGET ACQUIROR 1-DAY 20-DAY AVG. 20-DAY IRR IPO PRICE TARGET(a) PARENT - ----------------------------------------------------------------------------------------------------------------------------------- 11/01/95 03/13/96 PerSeptive Tech. PerSeptive II Corp. Biosystems Inc. 64.2% 67.7% 64.2% (18.5)% 0.6x (61.4)% (61.4)% 09/06/96 10/29/96 Neozyme II Corp. Genzyme Corp. 2.1 1.8 2.9 5.7 1.3 25.9 20.0 07/29/94 02/27/95 Cytorad Inc. Cytogen Corp. 90.5 116.8 171.1 (4.1) 0.9 (53.8) (78.8) 12/10/93 03/11/94 Tocor II Inc. Centocor Inc. 73.9 72.8 61.6 0.0 1.0 (42.5) (76.4) 06/16/95 11/22/95 Aramed Inc. Gensia Pharmaceuticals Inc. 52.2 54.1 37.8 (10.7) 0.6 (58.1) (82.4) 06/22/95(b)12/07/95 SciGenics, Inc. Genetics Institute 2.8 3.8 2.8 (9.5) 0.6 (38.1) (33.1) Inc. ------------------------------------------------------------------------------------------ NEGOTIATED MEDIAN 58.2% 60.9% 49.7% (6.8)% 0.8X (48.1)% (68.9)% NEGOTIATED MEAN 47.6% 52.8% 56.7% (6.2)% 0.8X (38.0)% (52.0)% ------------------------------------------------------------------------------------------ - ----------------------------------------------------------------------------------------------------------------------------------- 02/14/00(c)PENDING SURF DEVELOPMENT DUNE 35.5% 56.0% 53.7% (0.7)% 1.0X (17.0)% (68.5)% CORP. II 10/10/97 12/19/97 SURF DEVELOPMENT DUNE NA NA NA 30.3% 1.6X NA 242.2% CORP. - ----------------------------------------------------------------------------------------------------------------------------------- (a) In cases where warrant(s) has not separated from callable common stock, represents unit performance (b) On June 22, 1995, Genetics Institute offered to purchase SciGenics for $12.00 per share in cash; on September 7, 1995, SciGenics announced it had entered into a Definitive Agreement with Genetics Institute for $14.00 per share in cash (c) Represents date Dune announced its offer to Surf Board of Directors to purchase Surf Callable Common Stock for $12.50 per share in cash 53 PROJECT SURF ------------------------------------------- DISCOUNTED CASH FLOW ANALYSIS 54 SG PROJECT DISCOUNTED CASH FLOW ANALYSIS SURF ----------------------------------------------------------------- DISCOUNTED CASH FLOW - THEORETICAL ANALYSIS (WITH NOL) (a) PROJECTED CASH FLOWS (b) (US$ IN MILLIONS, EXCEPT PER SHARE DATA) Projected --------------------------------------------------------------------------------------- Fiscal Year Ending December 31, 2000(c) 2001 2002 2003 2004 2005 2006 2007 - ------------------------------------------------------------------------------------------------------------------------------- Sales $ 0.0 $ 6.1 $ 43.1 $176.6 $257.3 $321.2 $387.9 $453.2 EBITDA (54.9) (86.3) (54.8) 35.3 105.4 156.1 204.9 255.6 Less: Depreciation and Amortization 0.0 (0.2) (2.3) (2.7) (2.8) (3.5) (3.6) (3.8) ---------- ---------- ---------- --------- --------- ---------- --------- ---------- EBIT (54.9) (86.5) (57.1) 32.6 102.6 152.7 201.3 251.8 Less: Income Taxes @ 35.0%(d) 0.0 0.0 0.0 0.0 0.0 0.0 (64.8) (88.1) ---------- ---------- ---------- --------- --------- ---------- --------- ---------- Unlevered After-Tax Income (54.9) (86.5) (57.1) 32.6 102.6 152.7 136.5 163.7 Plus: Depreciation and Amortization 0.0 0.2 2.3 2.7 2.8 3.5 3.6 3.8 Less: Capital Expenditures (3.8) (11.0) (10.5) (3.0) (2.5) (3.5) (6.5) (2.0) Less: Working Capital Investment (0.1) 1.0 0.2 (13.7) (9.3) (7.0) (6.8) (6.7) ---------- ---------- ---------- --------- --------- ---------- --------- ---------- Free Cash Flow ($ 58.7) ($ 96.3) ($ 65.2) $ 18.6 $ 93.7 $145.7 $126.8 $158.8 ========== ========== ========== ========= ========= ========== ========= ========== DISCOUNTED CASH FLOW VALUATION ANALYSIS (US$ IN MILLIONS, EXCEPT EQUITY VALUE PER SHARE DATA) Range of Discount Rates ----------------------------------------------------------- 25.0% 27.5% 30.0% 32.5% 35.0% - ------------------------------------------------------------------------------------------------ Present Value of Free Cash Flow ($ 12.9) ($ 23.4) ($ 32.2) ($ 39.5) ($ 45.6) Present Value of Terminal Value(e) 112.7 87.9 69.3 55.2 44.3 --------- --------- --------- --------- --------- Implied Enterprise Value 99.8 64.4 37.1 15.7 (1.3) Plus: Net Cash(f) 54.7 54.7 54.7 54.7 54.7 --------- --------- --------- --------- --------- Implied Equity Value $154.5 $119.2 $ 91.8 $ 70.4 $ 53.5 Implied Equity Value per Share(g) $ 24.14 $ 18.62 $ 14.35 $ 11.00 $ 8.35 ========= ========= ========= ========= ========= 55 SG (a) Cash flows discounted back to March 31, 2000; theoretical analysis may be impacted by management's potential risks as discussed on page 12 (b) Source: Surf management as of February 18, 2000 (c) Represents estimates for the nine months from March 31, 2000 to December 31, 2000 (d) Assumes Surf does not receive benefit of NOL's (e) Based on perpetual growth methodology assuming perpetual growth rate is zero (f) Source: Surf management; represents estimated cash as of February 29, 2000, net payable to Dune (g) Implied equity value per share based on Treasury Method calculation which includes 6.325 million Surf Callable Common shares outstanding per Surf Form 10-Q for the period ended September 30, 1999 and 0.737 million options outstanding at a weighted average exercise price of $14.13 per Surf management as of March 14, 2000 PROJECT DISCOUNTED CASH FLOW ANALYSIS SURF ------------------------------------------------- DISCOUNTED CASH FLOW - THEORETICAL ANALYSIS (WITHOUT NOL) (a) PROJECTED CASH FLOWS (b) (US$ IN MILLIONS, EXCEPT PER SHARE DATA) PROJECTED --------------------------------------------------------------------------------------------- FISCAL YEAR ENDING DECEMBER 31, 2000 (c) 2001 2002 2003 2004 2005 2006 2007 - ---------------------------------------------------------------------------------------------------------------------------------- Sales $0.0 $6.1 $43.1 $176.6 $257.3 $321.2 $387.9 $453.2 EBITDA (54.9) (86.3) (54.8) 35.3 105.4 156.1 204.9 255.6 Less: Depreciation and Amortization 0.0 (0.2) (2.3) (2.7) (2.8) (3.5) (3.6) (3.8) ------- ------- ------- -------- ------- ------- ------- ------- EBIT (54.9) (86.5) (57.1) 32.6 102.6 152.7 201.3 251.8 Less: Income Taxes @ 35.0% (d) 0.0 0.0 0.0 (11.4) (35.9) (53.4) (70.4) (88.1) ------- ------- ------- -------- ------- ------- ------- ------- Unlevered After-Tax Income (54.9) (86.5) (57.1) 21.2 66.7 99.2 130.8 163.7 Plus: Depreciation and Amortization 0.0 0.2 2.3 2.7 2.8 3.5 3.6 3.8 Less: Capital Expenditures (3.8) (11.0) (10.5) (3.0) (2.5) (3.5) (6.5) (2.0) Less: Working Capital Investment (0.1) 1.0 0.2 (13.7) (9.3) (7.0) (6.8) (6.7) ------- -------- ------- -------- ------- ------- ------- ------- Free Cash Flow ($58.7) ($96.3) ($65.2) $7.2 $57.8 $92.2 $121.1 $158.8 ======= ======== ======= ======== ======= ======= ======= ======= DISCOUNTED CASH FLOW VALUATION ANALYSIS (US$ IN MILLIONS, EXCEPT EQUITY VALUE PER SHARE DATA) RANGE OF DISCOUNT RATES ---------------------------------------------------------------------------------- 25.0% 27.5% 30.0% 32.5% 35.0% - ---------------------------------------------------------------------------------------------------------------------------------- Present Value of Free Cash Flow ($46.3) ($53.7) ($59.6) ($64.4) ($68.2) Present Value of Terminal Value (e) 112.7 87.9 69.3 55.2 44.3 ------ ------ ------ ----- ----- Implied Enterprise Value 66.3 34.2 9.7 (9.2) (23.9) Plus: Net Cash (f) 54.7 54.7 54.7 54.7 54.7 ------ ------ ------ ----- ----- Implied Equity Value $121.1 $89.0 $64.4 $45.6 $30.9 Implied Equity Value per Share (g) $18.92 $13.90 $10.07 $7.12 $4.82 ====== ====== ====== ===== ===== (a) Cash flows discounted back to March 31, 2000; theoretical analysis may be impacted by management's potential risks as discussed on page 12 (b) Source: Surf management as of February 18, 2000 (c) Represents estimates for the nine months from March 31, 2000 to December 31, 2000 (d) Assumes Surf does not receive benefit of NOL's (e) Based on perpetual growth methodology assuming perpetual growth rate is zero (f) Source: Surf management; represents estimated cash as of February 29, 2000, net payable to Dune (g) Implied equity value per share based on Treasury Method calculation which includes 6.325 million Surf Callable Common shares outstanding per Surf Form 10-Q for the period ended September 30, 1999 and 0.737 million options outstanding at a weighted average exercise price of $14.13 per Surf management as of March 14, 2000 57 SG PROJECT DISCOUNTED CASH FLOW ANALYSIS SURF ------------------------------------------------- DISCOUNTED CASH FLOW - ROYALTY ANALYSIS (WITH NOL) (a) PROJECTED CASH FLOWS (17.5% ROYALTY STREAM) (b) (US$ IN MILLIONS) PROJECTED ------------------------------------------------------------------------------------------- FISCAL YEAR ENDING DECEMBER 31, 2000(c) 2001 2002 2003 2004 2005 2006 2007 - -------------------------------------------------------------------------------------------------------------------------------- Sales $0.0 $1.1 $7.5 $30.9 $45.0 $56.2 $67.9 $79.3 EBITDA (50.9) 1.1 7.5 30.9 45.0 56.2 67.9 79.3 Less: Depreciation and Amortization 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -------- -------- -------- -------- -------- -------- -------- ------- EBIT (50.9) 1.1 7.5 30.9 45.0 56.2 67.9 79.3 Less: Income Taxes @ 35.0% (d) 0.0 0.0 0.0 0.0 0.0 0.0 (11.8) (27.8) -------- -------- -------- -------- -------- -------- -------- ------- Unlevered After-Tax Income (50.9) 1.1 7.5 30.9 45.0 56.2 56.0 51.6 Plus: Depreciation and Amortization 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Less: Capital Expenditures (3.8) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Less: Working Capital Investment (0.1) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -------- -------- -------- -------- -------- -------- -------- ------- Free Cash Flow ($54.7) $1.1 $7.5 $30.9 $45.0 $56.2 $56.0 $51.6 ======== ======== ======== ======== ======== ======== ======== ======= ROYALTY ANALYSIS (EQUITY VALUE PER SHARE IN US$) ASSUMED ROYALTY STREAM (e) ---------------------------------------------------------------------- RANGE OF DISCOUNT RATES 15.0% 17.5% 20.0% - ---------------------------------------------------------------------------------------------------------------------------------- 25.0% $16.02 $18.12 $20.21 27.5% 14.05 15.85 17.65 30.0% 12.48 14.03 15.59 32.5% 11.20 12.56 13.92 35.0% 10.15 11.35 12.54 (a) Cash flows discounted back to March 31, 2000 (b) Based on projections provided by Surf management; assumes that Surf licenses out all products to a third party in exchange for royalty payments once the estimated net cash balance as of February 29, 2000 of approximately $54.7 million is exhausted (c) Represents estimated results for the nine months from March 31, 2000 through December 31, 2000; assumes Free Cash Flows do not exceed estimated net cash as of February 29, 2000 of $54.7 million (d) Assumes Surf begins to receive benefit of NOL's in FY2001 (e) Royalty ranges provided in consultation with the Company 58 SG PROJECT DISCOUNTED CASH FLOW ANALYSIS SURF ------------------------------------------------- DISCOUNTED CASH FLOW - ROYALTY ANALYSIS (WITHOUT NOL) (a) PROJECTED CASH FLOWS (17.5% ROYALTY STREAM) (b) (US$ IN MILLIONS) PROJECTED ------------------------------------------------------------------------------------------- FISCAL YEAR ENDING DECEMBER 31, 2000(c) 2001 2002 2003 2004 2005 2006 2007 - -------------------------------------------------------------------------------------------------------------------------------- Sales $0.0 $1.1 $7.5 $30.9 $45.0 $56.2 $67.9 $79.3 EBITDA (50.9) 1.1 7.5 30.9 45.0 56.2 67.9 79.3 Less: Depreciation and Amortization 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------ ------ ------ ------ ------ ------ ----- ------ EBIT (50.9) 1.1 7.5 30.9 45.0 56.2 67.9 79.3 Less: Income Taxes @ 35.0% (d) 0.0 (0.4) (2.6) (10.8) (15.8) (19.7) (23.8) (27.8) ------ ------ ------ ------ ------ ------ ----- ------ Unlevered After-Tax Income (50.9) 0.7 4.9 20.1 29.3 36.5 44.1 51.6 Plus: Depreciation and Amortization 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Less: Capital Expenditures (3.8) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Less: Working Capital Investment (0.1) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------ ------ ------ ------ ------ ------ ----- ------ Free Cash Flow ($54.7) $0.7 $4.9 $20.1 $29.3 $36.5 $44.1 $51.6 ====== ====== ====== ====== ====== ====== ===== ====== ROYALTY ANALYSIS (EQUITY VALUE PER SHARE IN US$) ASSUMED ROYALTY STREAM (e) ---------------------------------------------------------------------------------- RANGE OF DISCOUNT RATES 15.0% 17.5% 20.0% - ------------------------------------------------------------------------------------------------------------------ 25.0% $13.05 $15.00 $16.96 27.5% 11.37 13.02 14.68 30.0% 10.04 11.46 12.88 32.5% 8.99 10.21 11.44 35.0% 8.13 9.20 10.27 (a) Cash flows discounted back to March 31, 2000 (b) Based on projections provided by Surf management; assumes that Surf licenses out all products to a third party in exchange for royalty payments once the estimated net cash balance as of February 29, 2000 of approximately $54.7 million is exhausted (c) Represents estimated results for the nine months from March 31, 2000 through December 31, 2000; assumes Free Cash Flows do not exceed estimated net cash as of February 29, 2000 of $54.7 million (d) Assumes Surf does not receive benefit of NOL's (e) Royalty ranges provided in consultation with the Company 59 SG