Long-term debt consists of the following at December 31, 2012 and December 31, 2011:

(1) Our Revolving Credit facility is collateralized by our accounts receivable and our Term Loan is collateralized by our property, plant, and equipment.

(2) On October 31, 2011, the Company entered into an "Amended and Restated Revolving Credit, Term Loan and Security Agreement" with PNC Bank. Under the original credit facility with PNC dated December 22, 2000, as amended, variable interest was determined based on the options as noted; however, variable interest under the LIBOR option provided for a minimum floor base of 1.0% for both our Revolving Credit and Term Loan from January 1, 2011 to October 30, 2011.

(3) Original promissory note dated May 8, 2009 of $3,000,000 was modified on April 18, 2011, with principal balance of approximately $990,000. See "Promissory Notes and Installment Agreements" below for terms of original and amended promissory notes and the final payment made on the note.

(4) Net of debt discount of ($0) and ($117,000) for December 31, 2012 and December 31, 2011, respectively. See "Promissory Notes and Installment Agreements" below for additional information.

(5) Uncollateralized note.

(6) Promissory note entered into in connection with acquisition of SEC on October 31, 2011. See "Promissory Notes and Installment Agreements" below for cancellation and termination of the October 31. 2011 note in connection with settlement with TNC regarding certain claims that the Company asserted against TNC subsequent to the acquisition of SEC on October 31, 2011.

(7) Includes the $230,000 New Note issued to TNC on February 12, 2013 as discussed in Note 3 - "Business Combination." This note was issued to replace the remaining balance of $1,460,000 of the $2,500,000 October Note issued on October 31, 2012 in connection with the acquisition of SEC. The remaining balance of the $1,460,000 October Note was cancelled and terminated on February 12, 2013, in connection with settlement with TNC regarding certain claims that the Company asserted against TNC subsequent to the acquisition of SEC on October 31, 2011.

Revolving Credit and Term LoanAgreement

On October 31, 2011, in connection with the acquisition of SEC, we entered into an Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated October 31, 2011 ("Amended Loan Agreement"), with PNC Bank, National Association ("PNC"), acting as agent and lender, replacing our previous Loan Agreement with PNC. The Amended Loan Agreement provides us with the following credit facilities:

The Amended Loan Agreement terminates as of October 31, 2016, unless sooner terminated.

We have the option of paying an annual rate of interest due on the revolving credit facility at prime plus 2% or London Inter Bank Offer Rate ("LIBOR") plus 3% and the term loan and equipment credit facilities at prime plus 2.5% or LIBOR plus 3.5%.

As a condition of the Amended Loan Agreement, we paid the remaining balance due under the term loan under our previous Loan Agreement, totaling approximately $3,833,000, using our credit facilities under the Amended Loan Agreement. In connection with the Amended Loan Agreement, we paid PNC a fee of $217,500 and incurred other direct costs of approximately $298,000 (of which $33,000 was incurred in 2012), all of which are being amortized over the term of the Amended Loan Agreement as interest expense – financing fees. As a result of the termination of the original Loan Agreement with PNC, we recorded approximately $91,000 during the fourth quarter of 2011 in loss on extinguishment of debt in accordance with ASC 470-50, "Debt – Modifications and Extinguishments." As of December 31, 2012, the excess availability under our revolving credit was $10,146,000, based on our eligible receivables.

Pursuant to the Amended Loan Agreement, we may terminate the Amended Loan Agreement upon 90 days' prior written notice and upon payment in full of our obligations under the Amended Loan Agreement. We agreed to pay PNC 1.0% of the total financing in the event we pay off our obligations on or before October 31, 2012 and 0.5% of the total financing if we pay off our obligations after October 31, 2012, but prior to or on October 31, 2013. No early termination fee shall apply if we pay off our obligations under the Amended Loan Agreement after October 31, 2013.

On November 7, 2012, we entered into an Amendment to our Amended Loan Agreement. This Amendment provided for the exclusion of approximately $700,000 in certain costs related to the acquisition and $1,600,000 of of costs incurred related to certain contracts assumed in connection with the acquisition of SEC, in calculating the fixed charge ratio commencing September 30, 2012. The minimum fixed charge coverage ratio of 1.25 to 1.0 for the four quarter period endings as of the each of the fiscal quarters remains unchanged. As a condition of this Amendment, we agreed to pay PNC a fee of $15,000, which is being amortized over the term of the Amended Loan Agreement. All other terms of the Amended Loan Agreement remain principally unchanged.

Promissory Notes and Installment Agreements

The Company had a promissory note dated May 8, 2009, with William N. Lampson and Diehl Rettig (collectively, the "Lenders") for $3,000,000, which was amended on April 18, 2011 ("Amended Note"). Pursuant to the Amended Note, the remaining principal balance on the promissory note of approximately $990,000 was repaid in twelve monthly principal payments of approximately $82,500 plus accrued interest, starting May 8, 2011, with interest payable at the same rate of the original loan, which was LIBOR plus 4.5%, with LIBOR at least 1.5%. The Lenders were former shareholders of Nuvotec USA, Inc. (now known as ("n/k/a") Perma-Fix Northwest, Inc. ("PFNW")) prior to our acquisition of PFNW and Pacific EcoSolution, Inc. ("PEcoS") (n/k/a Perma-Fix Northwest Richland, Inc. ("PFNWR")) and are also stockholders of the Company, having received shares of our Common Stock in connection with our acquisition of PFNW and PFNWR. As consideration of the Company receiving the loan dated May 8, 2009, we issued a Warrant to Mr. Lampson ("Lampson Warrant") and a Warrant to Mr. Diehl to purchase, after taking into account the reverse stock split, up to 27,000 and 3,000 shares, respectively, of the Company's Common Stock at an exercise price of $7.50 per share. We also issued to them, after taking into account the reverse stock split, an aggregate of 40,000 shares of the Company's Common Stock, with Mr. Lampson receiving 36,000 shares and Mr. Rettig receiving 4,000 shares. In connection with the April 18, 2011 Amended Note, the expiration date of the Warrants were extended to May 8, 2012 from May 8, 2011 (Mr. Rettig is deceased; accordingly, the amended Warrant and the note payments were held by and paid to his personal representative/estate). During 2011, Mr. Robert L. Ferguson, a member of our Board of Directors who did not stand for re-election at our 2012 Annual Meeting of Stockholders held on September 13, 2012, acquired from Mr. William Lampson one-half of the Lampson Warrant (see Note 15 – "Related Party Transaction – Mr. Robert L. Ferguson"). The Company made the final payment on the note in April 2012. The Warrants as discussed above were not exercised and expired on May 8, 2012. The debt discount recorded in connection with the Common Stock and Warrants was fully amortized by April 2012

The promissory note included an embedded Put Option ("Put") that could have been exercised upon default, whereby the lender had the option to receive a cash payment equal to the amount of the unpaid principal balance plus all accrued and unpaid interest, or the number of whole shares of our Common Stock equal to the outstanding principal balance. The maximum number of payoff shares was restricted to less than 19.9% of the outstanding equity. We concluded that the Put should have been bifurcated at inception. We determined that the Put had nominal value at inception and during its life; therefore, no liability was recorded prior to its expiration date.

In connection with the acquisition of SEC, as partial consideration of the purchase price, we entered into a $2,500,000 unsecured, non-negotiable promissory note (the "October Note") on October 31, 2011, bearing an annual rate of interest of 6%, payable in 36 monthly installments, with TNC. The October Note provides that we have the right to prepay such at any time without interest or penalty. We prepaid $500,000 of the principal amount of the October Note within 10 days of closing of the acquisition. Under certain conditions, the October Note is subject to offset of amounts TNC owes us under certain terms and provisions of the Purchase Agreement and the October Note. Starting with the July 15, 2012 installment payments, our monthly installment payments consisted of interest payment only as we believed we had certain claims against TNC for breach of certain representations and covenant subsequent to our acquisition of SEC on October 31, 2012. As settlement of the aforementioned claims, the October Note was cancelled and terminated on February 12, 2013. A net reduction adjustment of approximately $1,230,000 was recorded retrospectively as part of our final purchase price allocation of SEC in connection with this note settlement (see Note 3 – "Business Acquisition" for further information of this settlement with TNC).

The October Note payable to SEC included an embedded conversion option ("Conversion Option") that can be exercised upon default, whereby TNC has the option to convert the unpaid portion of the Note into a number of whole shares of our restricted Common Stock. The number of shares of our restricted Common Stock to be issuable under the Conversion Option is determined by the principal amount owing under the Note at the time of default plus all accrued and unpaid interest and expenses (as defined) divided by the average of the closing price per share of our Common Stock as reported by the primary national securities exchange on which our Common Stock is traded during the 30 consecutive trading day period ending on the trading day immediately prior to receipt by us of TNC's written notice of its election to receive our Common Stock as a result of the event of default by us, with the number of shares of our Common Stock issuable upon such default subject to certain limitations. We concluded that the Conversion Option had nominal value up to the termination of the October Note.

On September 28, 2010, the Company entered into a promissory note in the principal amount of $1,322,000, with the former shareholders of Nuvotec in connection with an earn-out amount that we are required to pay upon meeting certain conditions for each earn-out measurement year ended June 30, 2008 to June 30, 2011, as a result of our acquisition of PFNW and PFNWR. Interest is accrued at an annual interest rate of 6%. The promissory note provides for 36 equal monthly payments of approximately $40,000, consisting of interest and principal, starting October 15, 2010. The promissory note may be prepaid at any time without penalty. See further details of the earn-out amount in Note 13 – "Commitments and Contingencies - Earn-Out Amount."

The following table approximates amount of the maturities of long-term debt maturing in future years as of December 31, 2012 of our continuing operations (in thousands):

Debt related to assets held for sale totals $71,000 at December 31, 2012, and is due as follows: $36,000 in 2013 and $35,000 in 2014.

Capital Leases

The following table lists future maturities of the capital leases as of December 31, 2012 of our continuing operations (in thousands):

As of December 31, 2012, total debt related to assets held for sale noted above were all capital leases and are due as noted above.