=============================================================================== SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ------------------------ FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2000 ----------------------- Commission File Number 0-16379 CLEAN HARBORS, INC. (Exact name of registrant as specified in its charter) Massachusetts 04-2997780 (State of Incorporation) (IRS Employer Identification No.) 1501 Washington Street, Braintree, MA 02184-7535 (Address of Principal Executive Offices) (Zip Code) (781) 849-1800 ext. 4454 (Registrant's Telephone Number, Including Area Code) Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes /X/ No / / Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date. Common Stock, $.01 par value 11,055,054 - --------------------------- ---------------------------- (Class) (Outstanding at May 1, 2000) ===============================================================================

CLEAN HARBORS, INC. AND SUBSIDIARIES TABLE OF CONTENTS PART I: FINANCIAL INFORMATION ITEM 1: FINANCIAL STATEMENTS PAGES ------- Consolidated Statements of Operations ..................................... 1 Consolidated Balance Sheets ............................................... 2-3 Consolidated Statements of Cash Flows ..................................... 4-5 Consolidated Statement of Stockholders' Equity ............................ 6 Notes to Consolidated Financial Statements ................................ 7-10 ITEM 2: MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS ......................................... 11-20 PART II: OTHER INFORMATION Items No. 1 through 6 ..................................................... 21 Signatures ................................................................ 22

CLEAN HARBORS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF OPERATIONS UNAUDITED (in thousands except for earnings per share amounts) THREE MONTHS ENDED MARCH 31, --------------------------------- 2000 1999 --------------- --------------- Revenues ......................................... $ 52,737 $ 44,648 Cost of revenues ................................. 39,109 33,869 Selling, general and administrative expenses ..... 10,185 8,936 Depreciation and amortization .................... 2,505 2,366 -------- -------- Income (loss) from operations .................... 938 (523) Interest expense, net ............................ 2,288 2,229 -------- -------- Loss before provision for income taxes ........... (1,350) (2,752) Provision for income taxes ....................... 90 90 -------- -------- Net loss ................................. $ (1,440) $ (2,842) ======== ======== Basic and fully diluted loss per share ........... $ (0.14) $ (0.28) ======== ======== Weighted average common shares outstanding ....... 10,935 10,514 ======== ======== The accompanying notes are an integral part of these consolidated financial statements. (1)

CLEAN HARBORS, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (Amounts in thousands, except share amounts) MARCH 31, DECEMBER 31, 2000 1999 (Unaudited) ---------------- ------------- ASSETS Current assets: Cash and cash equivalents ........................................ $ 4,589 $ 2,783 Restricted investments .................................... 1,346 1,116 Accounts receivable, net of allowance for doubtful accounts of $1,182 and $1,157, respectively ............. 46,611 43,780 Prepaid expenses .......................................... 1,306 1,094 Supplies inventories ...................................... 2,861 2,808 Income tax receivable ..................................... 122 122 -------- -------- Total current assets ............................. 56,835 51,703 -------- -------- Property, plant and equipment: Land ...................................................... 8,478 8,478 Buildings and improvements ................................ 41,491 40,612 Vehicles and equipment .................................... 86,362 84,528 Furniture and fixtures .................................... 2,221 2,219 Construction in progress .................................. 867 1,224 -------- -------- 139,419 137,061 Less - Accumulated depreciation and amortization .......................................... 82,869 80,849 -------- -------- Net property, plant and equipment ......................... 56,550 56,212 -------- -------- Other assets: Goodwill, net ............................................. 20,374 20,566 Permits, net .............................................. 12,369 12,633 Other ..................................................... 4,137 4,133 -------- -------- Total other assets ............................... 36,880 37,332 -------- -------- Total assets ..................................................... $150,265 $145,247 ======== ======== The accompanying notes are an integral part of these consolidated financial statements. (2)

CLEAN HARBORS, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (Amounts in thousands, except share amounts) MARCH 31, DECEMBER 31, 2000 1999 (Unaudited) ---------------- --------------- LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Current maturities of long-term obligations .................................. $ 2,217 $ 1,300 Accounts payable .................................. 20,419 17,830 Accrued disposal costs ............................ 7,709 6,591 Other accrued expenses ............................ 12,230 11,360 Income tax payable ................................ 91 57 --------- --------- Total current liabilities ............. 42,666 37,138 --------- --------- Long-term obligations, less current maturities ....... 73,446 72,683 Other ................................................ 1,279 1,255 --------- --------- Total other liabilities ............... 74,725 73,938 --------- --------- Stockholders' equity: Preferred Stock, $.01 par value: Series A Convertible; Authorized-2,000,000 shares; Issued and outstanding - none .......................... -- -- Series B Convertible; Authorized-156,416 shares; Issued and outstanding 112,000 (liquidation preference of $5.6 million) ............... 1 1 Common Stock, $.01 par value Authorized-20,000,000 shares; Issued and outstanding-10,982,444 and 10,798,007 shares, respectively .......... 110 108 Additional paid-in capital ........................ 61,509 61,245 Accumulated other comprehensive loss .............. (47) (36) Accumulated deficit ............................... (28,699) (27,147) --------- --------- Total stockholders' equity ............ 32,874 34,171 --------- --------- Total liabilities and stockholders' equity ........... $ 150,265 $ 145,247 ========= ========= The accompanying notes are an integral part of these consolidated financial statements. (3)

CLEAN HARBORS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS UNAUDITED (in thousands) THREE MONTHS ENDED MARCH 31, ---------------------------------- 2000 1999 --------------- -------------- CASH FLOWS FROM OPERATING ACTIVITIES: Net loss ................................................... $(1,440) $(2,842) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Depreciation and amortization ..................... 2,505 2,366 Allowance for doubtful accounts ................... 171 171 Amortization of deferred financing costs .......... 86 85 Loss on sale of fixed assets ...................... 8 -- Changes in assets and liabilities: Accounts receivable ............................... (3,002) 4,196 Prepaid expenses .................................. (212) (497) Supplies inventories .............................. (53) 68 Other assets ...................................... (4) 359 Accounts payable .................................. 2,351 (2,497) Accrued disposal costs ............................ 1,118 (704) Other accrued expenses ............................ 870 2,094 Income tax payable ................................ 34 (40) Other liabilities ................................. 24 36 ------- ------- Net cash provided by operating activities ................. 2,456 2,795 ------- ------- CASH FLOWS FROM INVESTING ACTIVITIES: Additions to property, plant and equipment ................ (2,190) (960) Proceeds from sale and maturities of restricted investments ............................ -- 1,177 Proceeds from the sale of fixed assets .................... 33 -- Cost of restricted investments acquired ................... (241) (12) Additions to permits ...................................... -- (17) ------- ------- Net cash provided by (used in) investing activities ....... $(2,398) $ 188 ------- ------- The accompanying notes are an integral part of these consolidated financial statements. (4)

CLEAN HARBORS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS UNAUDITED (in thousands) THREE MONTHS ENDED MARCH 31, -------------------------------- 2000 1999 --------------- ------------- CASH FLOWS FROM FINANCING ACTIVITIES: Additional borrowings under term note ................. $ 3,000 $ -- Net repayments under long-term revolver ............... (1,106) (1,614) Payments on long-term obligations ..................... (300) (750) Proceeds from exercise of stock options ............... 120 -- Proceeds from employee stock purchase plan ............ 34 38 ------- ------- Net cash provided by (used in) financing activities ... 1,748 (2,326) ------- ------- INCREASE IN CASH AND CASH EQUIVALENTS ...................... 1,806 657 Cash and cash equivalents, beginning of year .......... 2,783 1,895 ------- ------- Cash and cash equivalents, end of period .............. $ 4,589 $ 2,552 ======= ======= Supplemental Information: Non cash investing and financing activities: Stock dividend on preferred stock ............ $ 112 $ 112 The accompanying notes are an integral part of these consolidated financial statements. (5)

CLEAN HARBORS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY UNAUDITED (in thousands) Series B Preferred Stock Common Stock ---------------------- --------------------- Additional Number of $0.01 Par Number of $0.01 Par Paid-in Shares Value Shares Value Capital ----------------------- ------ ---------- ---------- Balance at December 31, 1999 ................ 112 $1 10,798 $108 $ 61,245 Net loss ................................. -- -- -- -- -- Other comprehensive income, net of tax: Unrealized holding losses arising during the peroid ........................ -- -- -- -- -- Other comprehensive income .................. -- -- -- -- -- Comprehensive loss .......................... -- -- -- -- -- Preferred stock dividends: Series B ................................... -- -- 93 1 111 Proceeds from exercise of stock options ..... -- -- 59 1 119 Employee stock purchase plan ................ -- -- 32 -- 34 ---- ---- ------ ----- ------- Balance at March 31, 2000 ................... 112 $1 10,982 $110 $61,509 ==== ==== ====== ===== ======= Accumulated Other Comprehensive Comprehensive Total Income Income Accumulated Stockholders' (Loss) (Loss) Deficit Equity ------------- ---------- ---------- ------------- Balance at December 31, 1999 ................ -- $(36) $(27,147) $34,171 Net loss ................................. $(1,440) -- (1,440) (1,440) Other comprehensive income, net of tax: Unrealized holding losses arising during the peroid ........................ (11) -- -- -- ------- Other comprehensive income .................. (11) (11) -- (11) ------- Comprehensive loss .......................... $(1,451) -- -- -- Preferred stock dividends: ======= Series B ................................... -- -- (112) -- Proceeds from exercise of stock options ..... -- -- -- 120 Employee stock purchase plan ................ -- -- -- 34 ------- ----- -------- ------- Balance at March 31, 2000 ................... -- $(47) $(28,699) $32,874 ======= ===== ======== ======= The accompanying notes are an integral part of these consolidated financial statements. (6)

CLEAN HARBORS, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) NOTE 1 BASIS OF PRESENTATION The consolidated interim financial statements included herein have been prepared by the Company, pursuant to the rules and regulations of the Securities and Exchange Commission, and include, in the opinion of management, all adjustments of a normal recurring nature necessary for the fair statement of results of interim periods. The operating results for the three months ended March 31, 2000 are not necessarily indicative of those to be expected for the full fiscal year. Reference is made to the audited consolidated financial statements and notes thereto included in the Company's Report on Form 10-K for the year ended December 31, 1999 as filed with the Securities and Exchange Commission. NOTE 2 RECLASSIFICATIONS Certain reclassifications have been made in the prior period's consolidated financial statements to conform to the 2000 presentation. NOTE 3 ACQUISITION On May 25, 1999, the Company acquired the assets of the Texas Transportation and Brokerage Divisions of American Ecology Environmental Services Corporation for a cash price of $1,900,000. The divisions operate out of locations in Dallas, Houston and Corpus Christi, Texas. The divisions provide waste management services primarily to small quantity generators throughout Texas and transportation services for both solid and liquid wastes. This acquisition has been accounted for under the purchase method of accounting. The purchase price has been allocated based on estimated fair values of assets acquired at the date of acquisition. The acquisition resulted in $272,000 of acquired goodwill, which is being amortized on the straight-line basis over 20 years. The results of the acquired businesses have been included in the consolidated financial statements since the acquisition date. The acquisition did not materially effect revenues or results from operations for the three months ended March 31, 2000. Assuming this acquisition had occurred January 1, 1999, consolidated, pro forma revenues, net income (loss) and earnings (loss) per share would not have been materially different than the amounts reported for the three months ended March 31, 1999. Such unaudited pro forma amounts are not indicative of what the actual consolidated results of operation might have been if the acquisition had been effective at the beginning of 1999. NOTE 4 FINANCING ARRANGEMENTS As described in the Form 10-K for the year ended December 31, 1999, the Company had a $30,500,000 Loan Agreement with a financial institution. The Loan Agreement provided for a $24,500,000 revolving credit portion (the "Revolver") and a $6,000,000 term promissory note (the "Term Note"). (7)

CLEAN HARBORS, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) NOTE 4 FINANCING ARRANGEMENTS (CONTINUED) The Revolver allowed the Company to borrow up to $30,500,000 in cash and letters of credit, based on a formula of eligible accounts receivable. At March 31, 2000, the Revolver balance was $8,491,000, letters of credit outstanding were $6,525,000 and funds available to borrow were approximately $9,484,000, and the balance of the Term Note was $5,000,000. In the first quarter of 2000, the Loan Agreement was amended and an additional term promissory note (the "2000 Term Note") was entered into with the financial institution. The original principal amount of 2000 Term Note is $3,000,000, it bears interest at the "prime" rate plus 1.5% or the Eurodollar rate plus 3.0%, and it is payable in 36 monthly installments commencing on May 1, 2000. The funds have been used to purchase vehicles and rolling stock that the Company previously leased under operating leases. In the first quarter of 2000, the due date of the Revolver was extended from May 8, 2001 to May 8, 2003. The Company has $50,000,000 of 12 1/2% Senior Notes due May 15, 2001 (the "Senior Notes"). In May 2000, the Senior Notes will be reclassified from a long-term liability to a current liability, since they will then be payable within one year. The Loan Agreement, as amended, redefines the working capital covenant to specifically exclude the Senior Notes as a component of working capital and requires that the Company maintain $6,000,000 of working capital, excluding the Senior Notes. The net worth covenant was changed to require $30,000,000 of adjusted net worth. At March 31, 2000 the Company had working capital and adjusted net worth of $14,169,000 and $32,874,000, respectively. The Company must also maintain borrowing availability of not less than $4,500,000 for sixty consecutive days prior to paying principal and interest on its other indebtedness and dividends in cash on its preferred stock. In the first quarter of 2000, the Company violated this covenant, which has been waived by the financial institution through May 15, 2000. In addition, the Indenture under which the Company has outstanding $9,900,000 of industrial revenue bonds (the "Bonds") contains certain covenants the most restrictive of which requires the Company maintain a rolling four quarter ratio of earnings before interest, income taxes, depreciation and amortization (EBITDA) to total debt service of 1.25 to 1. At December 31, 1997 the debt service coverage ratio was 1.04 to 1. Under the terms of the Bonds, the deficiency in the debt coverage ratio did not and will not result in a default, but the Company was required to pay into a debt service reserve fund held by the Trustee for the Bonds a total amount equal to the annual debt service for one year on the Bonds. Through March 31, 1999, the Company had paid $1,075,000 into this fund, as required. Under the terms of the Bonds, the Company can request that the balance of the debt service reserve fund be returned to the Company if the debt service coverage ratio of 1.50 to 1 is met for two consecutive quarters. For the quarters ended March 31, 1999 and December, 31, 1998, the debt service coverage ratios were 1.68 and 1.58, respectively. In May 1999, the Trustee for the Bonds returned the balance of the debt service reserve fund to the Company. At March 31, 2000 the debt service coverage ratio was 1.84. (8)

CLEAN HARBORS, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) NOTE 5 INCOME TAXES SFAS 109, "Accounting for Income Taxes," requires that a valuation allowance be established when, based on an evaluation of objective verifiable evidence, there is a likelihood that some portion or all of the deferred tax assets will not be realized. The Company continually reviews the adequacy of the valuation allowance for deferred tax assets, and, in 1998, based upon this review, the valuation allowance was increased to cover the value of all net deferred tax assets. Accordingly, no tax benefit has been recorded relating to the net losses for the quarters ended March 31, 2000 and 1999. The actual realization of the net operating loss carryforwards and other tax assets depend on having future taxable income of the appropriate character prior to their expiration. If the Company reports earnings from operations in the future, and depending on the level of these earnings, some portion or all of the valuation allowance would be reversed, which would increase net income reported in future periods. During the ordinary course of its business, the Company is audited by federal and state tax authorities which may result in proposed assessments. In 1996, the Company received a notice of intent to assess state income taxes from one of the states in which it operates. The case is currently undergoing administrative appeal. If the Company loses the administrative appeal, the Company may be required to make a payment of approximately $3,000,000 to the state. The Company cannot currently predict when the decision for the administrative appeal will be made. The Company believes that it has properly reported its state income and intends to contest the assessment vigorously. While the Company believes that the final outcome of the dispute will not have a material adverse effect on the Company's financial condition or results of operations, no assurance can be given as to the final outcome of the dispute, the amount of any final adjustments or the potential impact of such adjustments on the Company's financial condition or results of operations. NOTE 6 LOSS PER SHARE The following is a reconciliation of basic and diluted loss per share computations (in thousands except for per share amounts): Quarter Ended March 31, 2000 ----------------------------------------- Income Shares Per-Share (Numerator) (Denominator) Loss --------------- ------------- ---------- Net loss .......................... $ (1,440) Less preferred dividends .......... 112 -------------- ------ ------- Basic and diluted EPS (loss available to shareholders)... $ (1,552) 10,935 $(0.14) ============== ====== ======= (9)

CLEAN HARBORS, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) NOTE 6 LOSS PER SHARE (CONTINUED) Quarter Ended March 31, 1999 ---------------------------------------------- Income Shares Per-Share (Numerator) (Denominator) Loss --------------- ----------------- ----------- Net loss ..................................... $(2,842) Less preferred dividends ..................... 112 ------- ------- ------ Basic and diluted EPS (loss available to shareholders) ............. $(2,954) 10,514 $(0.28) ======= ======= ====== The Company has issued options, warrants and convertible preferred stock which are potentially dilutive to earnings. These have not been included in the calculations, since their inclusion would have been antidilutive for the above periods. (10)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FORWARD-LOOKING STATEMENT In addition to historical information, this Quarterly Report contains forward-looking statements, which are generally identifiable by use of the words "believes," "expects," "intends," "anticipates," "plans to," "estimates," "projects," or similar expressions. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those reflected in these forward-looking statements. Factors that might cause such a difference include, but are not limited to, those discussed in the section entitled "Management's Discussion and Analysis of Financial Condition and Results of Operations-Factors That May Affect Future Results." Readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management's opinions only as of the date hereof. The Company undertakes no obligation to revise or publicly release the results of any revision to these forward-looking statements. Readers should carefully review the risk factors described in other documents the Company files from time to time with the Securities and Exchange Commission. RESULTS OF OPERATIONS The following table sets forth for the periods indicated certain operating data associated with the Company's results of operations. Percentage of Total Revenues ---------------------------------- Three Months Ended March 31, ---------------------------------- 2000 1999 -------- ------- Revenues .............................................. 100.0% 100.0% Cost of revenues: Disposal costs paid to third parties ......... 12.4 12.7 Other costs .................................. 61.8 63.2 ----- ----- Total cost of revenues ....................... 74.2 75.9 Selling, general and administrative expenses ..................................... 19.3 20.0 Depreciation and amortization of intangible assets ......................... 4.7 5.3 ----- ----- Income (loss) from operations ......................... 1.8 (1.2)% ===== ===== (11)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS RESULTS OF OPERATIONS (CONTINUED) Three Months Ended March 31, ---------------------- 2000 1999 -------- ------- Other Data: - ---------- Earnings before interest, taxes, depreciation and amortization (EBITDA) (in thousands) ........... $3,443 $1,843 REVENUES Revenues for the first quarter of 2000 were $52,737,000, up $8,089,000 or 18.1% compared to revenues of $44,648,000 for the first quarter of the prior year. The Company responds to accidental releases of hazardous material through its emergency response services. In the first quarter of 2000, the Company recorded revenue of approximately $1,200,000 relating to services performed in cleaning up an accidental release of oil from a pipeline. There were no major events in the same quarter of 1999. The largest increase in base business was the volume of waste processed through the Company's facilities which increased 16.1%. This increase was partially offset by a 3.1% decrease due to pricing. Revenue from site services, excluding the emergency response event, increased by approximately $1,600,000 or 10.0%. There were increases in revenues from other services including CleanPack -Registered Trademark-, Harbor Industrial Services, waste oil services and Harbor Management Consultants. The combined revenue increases for these services totaled approximately $1,600,000. On March 6, 2000 a major competitor of the Company, Safety-Kleen Corp., announced that it had initiated an internal investigation of its prior reported financial results and certain of its accounting policies and practices, and it stated that it had placed three executives on administrative leave. The Company does not believe that first quarter revenues were materially impacted by Safety-Kleen's March 6, 2000 announcement. There are many factors which have impacted, and continue to impact, the Company's revenues. These factors include: competitive industry pricing; continued efforts by generators of hazardous waste to reduce the amount of hazardous waste they produce; significant consolidation among treatment and disposal companies; industry-wide over capacity; and direct shipment by generators of waste to the ultimate treatment or disposal location. (12)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS COST OF REVENUES Cost of revenues were $39,109,000 for the quarter ended March 31, 2000 compared to $33,869,000 for the quarter ended March 31, 1999, an increase of $5,240,000. As a percentage of revenues, cost of revenues decreased from 75.9% for the quarter ended March 31, 1999 to 74.2% for the quarter ended March 31, 2000. One of the largest components of cost of revenues is the cost of sending waste to other companies for disposal. Disposal costs paid to third parties as a percentage of revenue declined slightly from 12.7% for the quarter ended March 31, 1999 to 12.4% for the quarter ended March 31, 2000. This decrease was due to continuing efforts to internalize the disposal of waste, to develop alternative lower cost disposal technologies and to identify lower cost suppliers. Other costs of revenues as a percentage of revenues declined from 63.2% for the quarter ended March 31, 1999 to 61.8% for the quarter ended March 31, 2000. This decrease was primarily due to increased margins on waste processed through the Company's facilities due to the increase in the volume of waste processed and the fixed cost nature of the facilities. The Company believes that its ability to manage operating costs is an important factor in its ability to remain price competitive. The Company continues to upgrade the quality and efficiency of its waste treatment services through the development of new technology and continued modifications and upgrades at its facilities. In addition, during the first quarter 1999, the Company commenced a strategic sourcing initiative in order to reduce operating costs by identifying suppliers that are able to supply goods and services at lower costs, by obtaining volume discounts where the Company is currently purchasing goods and services from various suppliers and consolidating these purchases with a small number of suppliers, and by reducing the internal costs of purchasing goods and services by reducing the number of suppliers that the Company uses through reducing the number of purchase orders that must be prepared and invoices that must be processed. No assurance can be given that the Company's efforts to manage future operating expenses will be successful. Efforts to reduce costs are ongoing. SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Selling, general and administrative expenses increased to $10,185,000 for the three months ended March 31, 2000 from $8,936,000 for the three months ended March 31, 1999, an increase of $1,249,000 or 14.0%. In the third quarter of 1998 the Company formed Harbor Management Consultants; in the second quarter of 1999 the Company launched Harbor Industrial Services; and in the fourth quarter of 1999 the Company announced its E-Commerce initiative. These three recent initiatives caused the largest portion of the increase in selling, general and administrative expenses. Salaries and benefits increased due to increases in headcount due to higher revenues, increases in headcount in sales and marketing due to strategic business initiatives and increases in compensation to remain competitive in the employment markets in which the Company operates. Professional fees increased due to the cost of ongoing legal matters. Expenses relating to information technologies increased due to initiatives to improve the quality of management information. (13)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (CONTINUED) Although selling, general and administrative expenses increased in absolute dollars for the quarter ended March 31, 2000 as compared to the same quarter of the prior year, they declined as a percentage of revenues from 20.0% to 19.3% due to revenues increasing by a larger percentage amount than selling, general and administrative expenses. INTEREST EXPENSE, NET Interest expense net of interest income was $2,288,000 for the first quarter of 2000 as compared to $2,229,000 for the first quarter of 1999. The increase in interest expense is primarily due to higher variable interest rates on the revolving credit facility and term note, and higher average balances of debt outstanding. INCOME TAXES For the three months ended March 31, 2000, income tax expense of $90,000 was recorded on a pre-tax loss of $(1,350,000) for an effective tax rate of (6.7)%, as compared to tax expense of $90,000 that was recorded on a pre-tax loss of $(2,752,000) for the same quarter of the previous year for an effective tax rate of (3.3)%. SFAS 109, "Accounting for Income Taxes," requires that a valuation allowance be established when, based on an evaluation of objective verifiable evidence, there is a likelihood that some portion or all of the deferred tax assets will not be realized. The Company continually reviews the adequacy of its valuation allowance for deferred tax assets, and, in 1998, based on this review, the valuation allowance was increased to cover the value of all net deferred tax assets. Accordingly, the Company recorded no benefit on its books for the future potential value of net operating loss carryforwards for the quarters ended March 31, 1999 and 2000. The actual realization of the net operating loss carryforwards and other tax assets depend on having future taxable income of the appropriate character prior to their expiration under the tax laws. If the Company reports earnings from operations in the future, and depending on the level of these earnings, some portion or all of the valuation allowance would be reversed, which would increase net income reported in future periods. The $90,000 in income tax expense recorded for the each of the quarters ended March 31, 1999 and 2000 is due to the tangible property taxes and net worth taxes that are levied as a component of state income taxes. (14)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS INCOME TAXES (CONTINUED) During the ordinary course of its business, the Company is audited by federal and state tax authorities which may result in proposed assessments. In 1996, the Company received a notice of intent to assess state income taxes from one of the states in which it operates. The case is currently undergoing administrative appeal. If the Company loses the administrative appeal, the Company may be required to make a payment of approximately $3,000,000 to the state. The Company cannot currently predict when the decision for the administrative appeal will be made. The Company believes that it has properly reported its state income and intends to contest the assessment vigorously. While the Company believes that the final outcome of the dispute will not have a material adverse effect on the Company's financial condition or results of operations, no assurance can be given as to the final outcome of the dispute, the amount of any final adjustments or the potential impact of such adjustments on the Company's financial condition or results of operations. FACTORS THAT MAY AFFECT FUTURE RESULTS From time to time, the Company and employees acting on behalf of the Company make forward-looking statements concerning the expected revenues, results of operations, capital expenditures, capital structure, plans and objectives of management for future operations, and future economic performance. This report contains forward-looking statements. There are many factors which could cause actual results to differ materially from those projected in a forward-looking statement, and there can be no assurance that such expectations will be realized. The Company's future operating results may be affected by a number of factors, including the Company's ability to: utilize its facilities and workforce profitably in the face of intense price competition; maintain or increase market share in an industry which appears to be downsizing and consolidating; realize benefits from cost reduction programs; generate incremental volumes of waste to be handled through its facilities from existing sales offices and service centers; obtain sufficient volumes of waste at prices which produce revenue sufficient to offset the operating costs of the facilities; minimize downtime and disruptions of operations; and develop the industrial services, and consulting and information services businesses. The future operating results of the Company's incinerator may be affected by factors such as its ability to: obtain sufficient volumes of waste at prices which produce revenue sufficient to offset the operating costs of the facility; minimize downtime and disruptions of operations; and compete successfully against other incinerators which have an established share of the incineration market. (15)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FACTORS THAT MAY AFFECT FUTURE RESULTS (CONTINUED) The Company's operations may be affected by the commencement and completion of major site remediation projects; cleanup of major spills or other events; seasonal fluctuations due to weather and budgetary cycles influencing the timing of customers' spending for remedial activities; the timing of regulatory decisions relating to hazardous waste management projects; changes in regulations governing the management of hazardous waste; secular changes in the waste processing industry towards waste minimization and the propensity for delays in the remedial market; suspension of governmental permits; and fines and penalties for noncompliance with the myriad of regulations governing the Company's diverse operations. As a result of these factors, the Company's revenue and income could vary significantly from quarter to quarter, and past financial performance should not be considered a reliable indicator of future performance. Typically during the first quarter of each calendar year there is less demand for environmental remediation due to the cold weather, particularly in the Northeast and Midwest regions, and increased possibility of unplanned weather related plant shutdowns. FINANCIAL CONDITION AND LIQUIDITY For the quarter ended March 31, 2000, the Company generated $2,456,000 of cash from operations. Cash from operations reflected increases in accounts payable of $2,351,000, accrued disposal costs of $1,118,000 and other accrued expenses of $870,000. These increases in accounts payable and accrued expenses were due largely to the greater amount of business performed in March 2000 as compared to December of 1999. In addition, there was a greater amount of accrued interest at March 31, 2000 as compared to December 31, 1999 due to the timing of the payment of interest payments. Additional sources of cash were non-cash expenses of $2,505,000 for depreciation and amortization, $171,000 for the allowance for doubtful accounts and $86,000 for the amortization of deferred financing costs. Partially offsetting these sources of cash was a use of cash of $3,002,000 due to higher levels of accounts receivable at March 31, 2000 as compared to December 31, 1999 which was in turn due to the higher levels of business in March 2000 as compared to December 1999. In addition, the Company obtained $1,748,000 of cash from financing activities which consisted of additional borrowings under the term note of $3,000,000 and which was partially offset by repayments under the revolving line of credit of $1,106,000 and repayments under the term note of $300,000. Additional sources of cash from financing activities consisted of proceeds from the exercise of stock options of $120,000 and proceeds from issuances of stock under the employee stock purchase plan of $34,000. (16)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FINANCIAL CONDITION AND LIQUIDITY (CONTINUED) The $2,456,000 of cash generated from operations plus the $1,748,000 provided by financing activities together with $33,000 in proceeds from the sale of fixed assets was used to purchase property, plant and equipment of $2,190,000, to purchase $241,000 of restricted investments relating to the Company's captive insurance company and to increase the amount of cash on hand by $1,806,000. For the quarter ended March 31, 1999, the Company generated $2,795,000 of cash from operations. The primary sources of cash from operations were a $4,196,000 reduction of the accounts receivable balance at March 31, 1999 as compared to the balance at December 31, 1998 due to lower levels of sales in the first quarter of 1999 as compared to the fourth quarter of 1998, and non-cash expenses of $2,366,000 for depreciation and amortization, $171,000 for the allowance for doubtful accounts and $85,000 for the amortization of deferred financing costs. Partially offsetting these sources of cash was a net use of cash of $1,107,000 due to a net reduction in the combined balances of accounts payable, accrued disposal costs and other accrued expenses, at March 31, 1999 compared to those of December 31, 1998, which was in turn due to lower levels of activities and timing of periodic interest payments on long-term debt obligations in the first quarter of 1999 as compared to the fourth quarter of 1998. In addition, the Company obtained $188,000 from investing activities. The source of cash from investing activities was $1,177,000 which was almost completely due to release of restricted funds that were held in a debt service reserve fund at December 31, 1998. The debt service reserve fund is discussed later in Management's Discussion and Analysis of Financial Condition and Liquidity. Primarily offsetting the source of cash from investing activities was a use of cash of $960,000 to purchase property, plant and equipment. The Company used the $2,795,000 generated from operations and the $188,000 generated from investing activities primarily to reduce borrowings under the revolving line of credit of $1,614,000, to reduce the outstanding balance on the term loan by $750,000 and to increase the amount of cash on hand by $657,000. (17)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FINANCIAL CONDITION AND LIQUIDITY (CONTINUED) As described in the Form 10-K for the year ended December 31, 1999, the Company had a $30,500,000 Loan Agreement with a financial institution. The Loan Agreement provided for a $24,500,00 revolving credit portion (the "Revolver") and a $6,000,000 term promissory note (the "Term Note"). The Revolver allowed the Company to borrow up to $30,500,000 in cash and letters of credit, based on a formula of eligible accounts receivable. At March 31, 2000, the Revolver balance was $8,491,000, letters of credit outstanding were $6,525,000 and funds available to borrow were approximately $9,484,000, and the balance of the Term Note was $5,000,000. In the first quarter of 2000, the Loan Agreement was amended and an additional term promissory note (the "2000 Term Note") was entered into with the financial institution. The original principal amount of the 2000 Term Note is $3,000,000, it bears interest at the "prime" rate plus 1.5% or the Eurodollar rate plus 3.0%, and it is payable in 36 monthly installments commencing on May 1, 2000. The funds have been used to purchase vehicles and rolling stock that the Company previously leased under operating leases. The purchase of the vehicles will result in lower lease expense in cost of revenues and higher levels of expense for depreciation and interest. In the first quarter of 2000, the due date of the Revolver was extended from May 8, 2001 to May 8, 2003. The Company has $50,000,000 of 12 1/2% Senior Notes due May 15, 2001 (the "Senior Notes"). In May 2000, the Senior Notes will be reclassified from a long-term liability to a current liability, since they will then be payable within one year. The Loan Agreement, as amended, redefines the working capital covenant to specifically exclude the Senior Notes as a component of working capital and requires that the Company maintain $6,000,000 of working capital, excluding the Senior Notes. The net worth covenant was changed to require $30,000,000 of adjusted net worth. At March 31, 2000 the Company had working capital and adjusted net worth of $14,169,000 and $32,874,000 respectively. The Company must also maintain borrowing availability of not less than $4,500,000 for sixty consecutive days prior to paying principal and interest on its other indebtedness and dividends in cash on its preferred stock. In the first quarter of 2000, the Company violated this covenant, which has been waived by the financial institution through May 15, 2000. The financial institution has stated that it will continue to waive this covenant, if violated; however, no assurance can be given that this covenant will be waived, if violated, in the future by the financial institution. The Company believes that it will meet this covenant for the foreseeable future. (18)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FINANCIAL CONDITION AND LIQUIDITY (CONTINUED) Management believes that sufficient resources will be available to meet the Company's cash requirements through at least May 2001. In May 2001 the $50,000,000 of Senior Notes mature. Some portion or all of the borrowings under the Senior Notes will need to be refinanced by the maturity date, with any portion not refinanced to be repaid from other sources such as cash from operations or net proceeds from the sale of assets or additional equity. The ability of the Company to refinance the Senior Notes at reasonable interest rates is dependent upon improving results from operations and is contingent on a favorable interest rate environment when the Company attempts to refinance the debt. Failure to obtain refinancing could materially adversely affect the Company. In addition, the Indenture under which the Company has outstanding $9,900,000 of industrial revenue bonds (the "Bonds") contains certain covenants the most restrictive of which requires the Company maintain a rolling four quarter ratio of earnings before interest, income taxes, depreciation and amortization (EBITDA) to total debt service of 1.25 to 1. At December 31, 1997 the debt service coverage ratio was 1.04 to 1. Under the terms of the Bonds, the deficiency in the debt coverage ratio did not and will not result in a default, but the Company was required to pay into a debt service reserve fund held by the Trustee for the Bonds a total amount equal to the annual debt service for one year on the Bonds. Through March 31, 1999, the Company paid $1,075,000 into this fund, as required. Under the terms of the Bonds, the Company can request that the balance of the debt service reserve fund be returned to the Company if the debt service coverage ratio of 1.50 to 1 is met for two consecutive quarters. For the quarters ended March 31, 1999 and December 31, 1998, the debt service coverage ratios were 1.68 and 1.58 respectively. In May 1999, the Trustee for the Bonds returned the balance of the debt service reserve fund to the Company. At March 31, 2000 the debt service coverage ratio was 1.84. The Company expects 2000 capital additions, excluding the $3,000,000 purchase of vehicles and rolling stock discussed previously, to be approximately $4,000,000. The Company believes that it has all of the facilities required by the business for the foreseeable future. Thus, the Company anticipates that capital expenditures in 2000 will be limited to maintaining existing capital assets, replacing site services equipment, and upgrading information technology hardware and software. However, the Company continues to evaluate potential acquisitions and opening additional site services offices within and next to the Company's service areas. Thus, it is possible that capital additions could exceed the $7,000,000 currently planned. (19)

CLEAN HARBORS, INC. AND SUBSIDIARIES MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FINANCIAL CONDITION AND LIQUIDITY (CONTINUED) Dividends on the Company's Series B Convertible Preferred Stock are payable on the 15th day of January, April, July and October, at the rate of $1.00 per share, per quarter; 112,000 shares are outstanding. Under the terms of the preferred stock, the Company can elect to pay dividends in cash or in common stock with a market value equal to the amount of the dividend payable. The Company elected to pay the January 15, 2000 dividend in common stock. Accordingly, the Company issued 92,849 shares of common stock to the holders of the preferred stock in the period ended March 31, 2000. The Company anticipates that the preferred stock dividends payable through 2000 will be paid in common stock. RECENT ACCOUNTING PRONOUNCEMENTS In March 2000, the Financial Accounting Standards Board ("FASB") issued FASB Interpretation No. 44, "Accounting for Certain Transactions involving Stock Compensation (an interpretation of ABP Opinion No. 25)" ("FIN 44"). FIN 44 clarifies the application of APB Opinion No. 25 and, among other issues, clarifies the following: the definition of an employee for purposes of applying APB Opinion No. 25; the criteria for determining whether a plan qualifies as a non-compensatory plan; the accounting consequences of various modifications to the terms of previously fixed stock options or awards; and the accounting for an exchange of stock compensation awards in a business combination. FIN 44 is effective July 1, 2000 but certain conclusions in FIN 44 cover specific events that occurred after either December 15, 1998 or January 12, 2000. The Company does not expect the application of FIN 44 to have a material impact on the Company's results of operations or its financial position. (20)

CLEAN HARBORS, INC. AND SUBSIDIARIES PART II - OTHER INFORMATION ITEM 1 - LEGAL PROCEEDINGS No legal proceedings of a material nature have arisen in the first quarter of 2000, and there have been no material changes during the first quarter of 2000 in the pending legal proceedings disclosed in the Form 10-K for the year ended December 31, 1999. ITEM 2 - CHANGES IN SECURITIES None ITEM 3 - DEFAULTS UPON SENIOR DEBT None ITEM 4 - SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS None ITEM 5 - OTHER INFORMATION None ITEM 6 - EXHIBITS AND REPORTS ON FORM 8-K EXHIBIT NO. DESCRIPTION LOCATION 27 Financial Data Schedule Filed herewith Reports on Form 8-K None (21)

CLEAN HARBORS, INC. AND SUBSIDIARIES SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Clean Harbors, Inc. ---------------------------- Registrant Dated: May 11, 2000 By: /s/ Alan S. McKim --------------------------- Alan S. McKim President and Chief Executive Officer Dated: May 11, 2000 By: /s/ Roger A. Koenecke ---------------------------- Roger A. Koenecke Senior Vice President and Chief Financial Officer (22)

  

5 THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED FINANCIAL STATEMENTS OF CLEAN HARBORS, INC. AND SUBSIDIARIES FOR THE QUARTER ENDED MARCH 31, 2000, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. 0000822818 CLEAN HARBORS 1,000 3-MOS DEC-31-1999 JAN-01-2000 MAR-31-2000 4,589 1,346 47,793 1,182 2,861 56,835 139,419 82,869 150,265 42,666 73,446 0 1 110 32,763 150,265 0 52,737 0 39,109 12,519 171 2,288 (1,350) 90 (1,440) 0 0 0 (1,440) $(0.14) $(0.14)