Heritage-Crystal Clean, Inc. Announces Record 2021 Fourth Quarter and Full Year Financial Results

March 2, 2022

ELGIN, IL., March 2, 2022 — Heritage-Crystal Clean, Inc. (Nasdaq: HCCI), a leading provider of parts cleaning, hazardous and non-hazardous waste services, used oil re-refining, antifreeze recycling and field services primarily focused on small and mid-sized customers, today announced results for the fourth quarter of fiscal 2021 and for the full fiscal year, which ended January 1, 2022. To view the financial results for the fourth quarter and full year, please visit our financial releases page.

The company will host a conference call on Thursday, March 3, 2022 at 9:30 AM Central Time, during which management will give a presentation focusing on the Company’s operations and financial results.

Interested parties can listen to the audio webcast available through our company website, https://crystal-clean.com/investor-relations/, and can participate on the call by dialing (833) 772-0398. After dialing the number, you will be required to provide the following passcode before being joined to the conference call: 7483238.

You can also register for the online webcast by clicking this link.