EXHIBIT 99 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. FORM 11-K ANNUAL REPORT Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the Fiscal Year Ended December 31, 1998 Employees' Stock Purchase Plan of UAL Corporation ------------------------------------------------- (Full title of the Plan) UAL Corporation --------------- (Employer sponsoring the Plan, issuer of the participations in the Plan and issuer of the shares held pursuant to the Plan) 1200 Algonquin Road, Elk Grove Township, Illinois Mailing Address: UAL Corporation, P.O.Box 66919, Chicago, Illinois 60666 -------------------------------------------------------- (Address of principal executive offices) REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS ---------------------------------------- To UAL Corporation: We have audited the accompanying statements of financial position of the Employees' Stock Purchase Plan of UAL Corporation (the "Plan") as of December 31, 1998 and 1997 and the related statements of changes in participants' equity for each of the three years in the period ended December 31, 1998. These financial statements are the responsibility of the Plan's administrator. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by the Plan's administrator, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of the Plan as of December 31, 1998 and 1997 and the changes in its participants' equity for each of the three years in the period ended December 31, 1998, in conformity with generally accepted accounting principles. /s/ Arthur Andersen LLP ARTHUR ANDERSEN LLP Chicago, Illinois March 15, 1999 Signature - --------- Pursuant to the requirements of the Securities Exchange Act of 1934, the sponsor and issuer of the participants of the Plan, UAL Corporation has duly caused this Annual Report to be signed on its behalf by the undersigned thereunto duly authorized. UAL Corporation Administrator Dated March 12, 1999 By /s/ Douglas A. Hacker Douglas A. Hacker Senior Vice President and Chief Financial Officer EMPLOYEES' STOCK PURCHASE PLAN ------------------------------ OF UAL CORPORATION ------------------ STATEMENTS OF FINANCIAL POSITION -------------------------------- (In Thousands, Except Number of Shares) December 31 1998 1997 ---- ---- ASSETS - ------ Participants' payroll deductions receivable from UAL Corporation $ 369 $ 684 Investment in common stock of UAL Corporation, at quoted market value (1998 - 528,112 shares, cost $21,208; 1997 - 506,971 shares, cost $17,283). 31,522 46,895 ------ ------ $ 31,891 $ 47,579 ======== ======== LIABILITIES AND PARTICIPANTS' EQUITY - ------------------------------------ Payable to terminating and partially withdrawing participants, at quoted market value (1998 - 6,172 shares, cost $ 368; 1997 - 170 shares, cost $ 16). $ 368 $ 16 Participants' equity 31,523 47,563 ------ ------ $ 31,891 $ 47,579 ======== ======== The accompanying notes to financial statements are an integral part of these statements. EMPLOYEES' STOCK PURCHASE PLAN ------------------------------ OF UAL CORPORATION ------------------ STATEMENTS OF CHANGES IN PARTICIPANTS' EQUITY --------------------------------------------- (In Thousands) Year Ended December 31 ---------------------- 1998 1997 1996 ---- ---- ---- Balance at beginning of year $ 47,563 $ 32,247 $ 22,146 Increase (decrease) during year: Participants' payroll deductions 5,810 5,576 3,849 Realized gain on stock distributed to participants 150 3,682 1,312 Unrealized appreciation (depreciation) in value of investment (19,298) 11,501 8,086 Stock and cash for fractional shares distributed or amounts payable to participants, at market value (2,702) (5,443) (3,146) ------- ------- ------- (16,040) 15,316 10,101 ======= ======= ======= Balance at end of year $ 31,523 $ 47,563 $ 32,247 ======= ======= ======= The accompanying notes to financial statements are an integral part of these statements. EMPLOYEES' STOCK PURCHASE PLAN ------------------------------ OF UAL CORPORATION ------------------ NOTES TO FINANCIAL STATEMENTS ----------------------------- (1) The Plan - ------------- The Employees' Stock Purchase Plan of UAL Corporation (the "Plan") is sponsored by UAL Corporation ("UAL"). UAL offers participation in the Plan to eligible employees of UAL and its subsidiaries. (2) Purchase and Distribution of Stock - --------------------------------------- Purchases are made by the Plan monthly, and the shares purchased are credited to the accounts of each participant on the basis of the ratio of the participant's contribution to total participants' contributions for the month. The cost of common stock purchased for the Plan includes all brokerage charges involved in the purchase. When shares of stock are distributed to the individual participants pursuant to the terms of the Plan, the market value of such shares is removed from the investment account of the Plan. Terminating participants receive a certificate for the full number of shares, plus cash for the fractional shares, held for their accounts. Partially withdrawing participants receive certificates for the full number of shares withdrawn. There are no forfeiture provisions under the Plan with respect to participants' contributions. (3) Investment in Common Stock of UAL - -------------------------------------- The investment in common stock of UAL is valued at the year-end published market prices as reported by the New York Stock Exchange. (4) Realized Gain on Stock Distributed to Participants - ------------------------------------------------------- Gains on stock distributed to participants are realized to the extent of the difference between the weighted average cost of shares distributed and the market value at the date of distribution. (5) Unrealized Appreciation (Depreciation) in Value of Investment - ------------------------------------------------------------------ The unrealized appreciation (depreciation) in the value of investment is the change from the prior year-end to the current year-end in the difference between the market value and the cost of the investment. The following is a summary of unrealized appreciation (depreciation): 1998 1997 1996 ---- ---- ---- (In Thousands) Balance at beginning of year $ 29,612 $ 18,111 $ 10,025 Increase (decrease) during year (19,298) 11,501 8,086 -------- ------- -------- Balance at end of year $ 10,314 $ 29,612 $ 18,111 ========= ======== ======== (6) Administrative Expenses of the Plan - ---------------------------------------- All administrative expenses of the Plan are paid by UAL. (7) Federal Income Tax - ----------------------- Under existing federal income tax laws, the Plan is not subject to federal income tax. Any dividend income is taxable to the participants upon distribution and receipt. When any shares of stock or rights acquired under the Plan are sold by or for a participant, any gain or loss must be recognized by that participant. Consent of Independent Public Accountants As independent public accountants, we hereby consent to the incorporation of our report included in Exhibit 99 of the UAL Corporation Form 10-K for the year ended December 31, 1998, into the Company's previously filed Post-Effective Amendment No. 1 to Form S-8 (File No. 2-67368) and Post-Effective Amendment No. 2 to Form S-8 (File No. 33-37613) for the Employees' Stock Purchase Plan of UAL Corporation. /s/ Arthur Andersen LLP Arthur Andersen LLP Chicago, Illinois March 15, 1999