Summary of HERITAGE-CRYSTAL CLEAN, INC.

Item 1.01 Entry into a Material Definitive Agreement

On December 10, 2012, Heritage-Crystal Clean, Inc. (the "Company") and its operating subsidiary Heritage-Crystal Clean, LLC entered into the Fifth Amendment (the "Amendment") to the Third Amended and Restated Credit Agreement dated as of December 14, 2009 between Heritage-Crystal Clean, LLC and Bank of America, N.A. (the "Credit Agreement"). The Amendment changes the maturity date of the Revolver portion of the Credit Agreement from December 14, 2012 to January 31, 2013. The Company intends to execute a new credit agreement for both the Term Loan and Revolver portions of the Credit Agreement before the new maturity date of January 31, 2013.

The foregoing description of the Amendment to the Credit Agreement does not purport to be complete and is qualified in its entirety by reference to the copy of the Amendment filed as Exhibit 10.5 to this Current Report on Form 8-K, which is incorporated by reference into this Item 1.01.

This report contains forward-looking statements that are based upon current management expectations. Generally, the words "aim," "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "plan," "project," "should," "will," "will be," "will continue," "will likely result," "would" and similar expressions identify forward-looking statements. These forward-looking statements involve known and unknown risks, uncertainties and other important factors that could cause our actual results, performance or achievements or industry results to differ materially from any future results, performance or achievements expressed or implied by these forward-looking statements. These risks, uncertainties and other important factors include, among others: the used oil re-refinery does not perform as anticipated; we are unable to generate sufficient funds to support our used oil re-refinery; we are unable to collect sufficient used oil to run our used oil re-refinery at full capacity; the used oil re-refinery may not generate the operating results that we anticipate; we do not realize the anticipated benefits from our acquisitions; our ability to comply with the extensive environmental, health and safety and employment laws and regulations that our Company is subject to; changes in environmental laws that affect our business model; competition; claims relating to our handling of hazardous substances; the limited demand for our used solvent; our dependency on key employees; our ability to effectively manage our extended network of branch locations; warranty expense and liability claims; personal injury litigation; dependency of suppliers; economic conditions including the recent recession and financial crisis, and downturns in the business cycles of automotive repair shops, industrial manufacturing business and small businesses in general; increased solvent, fuel and energy costs and volatility in the price of crude oil; the control of The Heritage Group over our Company; and the risks identified in our Annual Report on Form 10-K filed with the SEC on February 29, 2012 and subsequent filings with the SEC. Given these uncertainties, you are cautioned not to place undue reliance on these forward-looking statements. We assume no obligation to update or revise them or provide reasons why actual results may differ. The information in this release should be read in light of such risks and in conjunction with the consolidated financial statements and the notes thereto included elsewhere in this release.