AMENDMENT TO LEASE AGREEMENT DATED August 16, 1996 _______________ This Amendment becomes a part of the Equipment Lease Agreement dated as of October 12, 1994, and the accompanying Rider No. 2, wherein Perma-Fix Environmental Services Inc., Perma-Fix of Memphis Inc., Perma-Fix of Ft. Lauderdale Inc., Perma-Fix of Dayton Inc., and Perma-Fix Treatment Services Inc. as Lessee and Ally Capital Corporation is Lessor. Paragraph No. 4 of the above referenced lease which contains a 3.0 million tangible net worth covenant require- ment is hereby deleted in its entirety and the covenants as contained in the attached "Exhibit A", are substituted in lieu thereof. All other conditions of the Equipment Lease Agreement remain the same. PERMA-FIX SERVICES INC. AND PERMA-FIX OF MEMPHIS INC. AND PERMA-FIX OF FT. LAUDERDALE INC. AND PERMA-FIX OF INC. AND PERMA-FIX TREATMENT SERVICES INC. CO-LESSEES ALLY CAPITAL CORPORATION PERMA-FIX ENVIRONMENTAL SERVICES, INC. By: By: ______________________ _____________________________ Name: Name: Richard T. Kelecy _________________ ________________________ Title: Title: Chief Financial Officer _________________ ________________________ PERMA-FIX OF MEMPHIS INC. By: _______________________________ Name: Richard T. Kelecy __________________________ Title: Chief Financial Officer __________________________ PERMA-FIX OF FT. LAUDERDALE INC. By: ______________________________ Name: Richard T. Kelecy __________________________ Title: Chief Financial Officer ________________________ PERMA-FIX OF DAYTON INC. By: ______________________________ Name: Richard T. Kelecy _________________________ Title: Chief Financial Officer PERMA-FIX TREATMENT SERVICES INC. By: ______________________________ Name: Richard T. Kelecy _________________________ Title: Chief Financial Officer ________________________ Exhibit "A" to Amendment to Lease Agreement Dated: August 16, 1996 _________________ FINANCIAL COVENANTS Section 1 Perma-Fix Environmental Services Inc. and its subsidiaries on a consolidated basis covenant and agree that until payment in full of all Obligations owed by Perma-Fix Environmental Services Inc. to Ally Capital are paid, Perma-Fix shall comply with all covenants in this Section 1. The terms used in this Exhibit "A" to amendment to lease agreement shall have the meanings as defined in the loan and security agreement dated as of January 27, 1995 among Perma-Fix Environmental Services Inc. and subsidiaries and Heller Financial Inc. as amended to the date of this amendment. 1.1 Tangible Net Worth __________________ Perma-Fix Environmental Services Inc. shall maintain Tangible Net Worth of at least the amount set forth below at the end of each applicable period set forth below: Applicable Period Amount _________________ ______ As of 6/30/96 ($600,000) As of 9/30/96 ($100,000) As of 12/31/96 and as of $500,000 the end of each fiscal quarter of Borrower thereafter 1.2 Minimum EBITDA ______________ Perma-Fix Environmental Services Inc. shall achieve an EBITDA of at least the amount set forth below for each applicable period set forth below: Applicable Period Amount _________________ ______ Six Months Ended 6/30/96 $ 900,000 Nine Months Ended 9/30/96 $1,700,000 Twelve Months Ended 12/31/96 $2,500,000 Twelve Months Ended 3/31/97 $3,000,000 and for each twelve month period ending on the last quarter day of each fiscal quarter thereafter 1.3 Capital Expenditure Limits __________________________ The aggregate amount of all Capital Expenditures of Perma- Fix Environmental Services Inc. and its Subsidiaries (excluding trade-ins and excluding (a) Capital Expenditures in respect of replacement assets to the extent funded with casualty insurance proceeds and (b) Capital Expenditures financed pursuant to Capital Leases permitted will not exceed the amount set forth below for each applicable period set forth below: Applicable Period Amount _________________ _______ January 1, 1996 - December 31, 1996 $1,820,000 January 1, 1997 - January 31, 1998 $1,250,000 1.4 Fixed Charge Coverage _____________________ Perma-Fix Environmental Services Inc. shall not permit Fixed Charge Coverage for each applicable period set forth below to be less than the amount set forth below for such period (provided, however, that in computing Fixed Charge Coverage, Capital Expenditures pursuant to Capital Leases permitted pursuant to Section 7.1 hereof and Indebtedness paid by Perma-Fix, Inc. in connection with the sale of its Re-Tech division shall be excluded): Applicable Period Ratio Six Months Ended 6/30/96 .14:1 Seven Months Ended 7/31/96 .20:1 Eight Months Ended 8/31/96 .35:1 Nine Months Ended 9/31/96 .40:1 Ten Months Ended 10/31/96 .50:1 Eleven Months Ended 11/30/96 .55:1 Twelve Months Ended 12/31/96 .55:1 Twelve Months Ended 1/31/97 .75:1 Twelve Months Ended 2/28/97 .75:1 Twelve Months Ended 3/31/97 .75:1 Twelve Months Ended 4/30/97 .75:1 Twelve Months Ended 5/31/97 .75:1 Twelve Months Ended 6/30/97 .75:1 Twelve Months Ended 7/31/97 .75:1 Twelve Months Ended 8/31/97 .75:1 Twelve Months Ended 9/30/97 .75:1 Twelve Months Ended 10/31/97 .75:1 Twelve Months Ended 11/30/97 .75:1 Twelve Months Ended 12/31/97 1.00:1 1.5 Maximum Days Receivable _______________________ Parent will not permit (A) the product of (x) the aggregate dollar amount of the Accounts of all Loan Parties as at the end of any fiscal quarter, times (y) ninety (90), divided by (B) the Loan Parties net sales revenue in respect of such fiscal quarter, to exceed seventy-five (75). 1.6 Current Ratio. _____________ Borrower shall maintain at all times a ratio of "Current Assets" (as defined under GAAP) to trade payables of at least 1.3:1. 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