|  | TIME |  |  | Mountain Time on , 2022 |  | 
|  | PLACE |  |  | Virtual |  | 
|  | IMPORTANT NOTICE REGARDING MEETING LOCATION AND ATTENDANCE |  |  | The Special Meeting of Stockholders will be conducted solely virtually, on the above date and time, via live audio webcast, and you or your proxyholder may participate, vote and examine our list of stockholders entitled to vote at the meeting at the virtual Special Meeting by visiting www.virtualshareholdermeeting.com/ECOL2022SM and using your 16-digit control number included in the Notice Regarding the Availability of Proxy Materials. Please note you will only be able to participate in the meeting using this website. |  | 
|  | PURPOSE |  |  | 
               
                To vote on three proposals:
               
              
                Proposal No. 1:
               
              
                A proposal to adopt that certain Agreement and Plan of Merger, dated as of February 8, 2022, as may be amended from time to time by and among US Ecology, Inc., Republic Services, Inc., and Bronco Acquisition Corp., which is a wholly-owned subsidiary of Republic Services.
               
              
                Proposal No. 2:
               
              
                A proposal to approve, on a non-binding, advisory basis, certain compensation that will or may be paid by US Ecology, Inc., to its named executive officers that is based on or otherwise relates to the merger of Bronco Acquisition Corp. with and into US Ecology, Inc. pursuant to the merger agreement.
               
              
                Proposal No. 3:
               
              
                A proposal to adjourn the Special Meeting of Stockholders to a later date or time if necessary, to solicit additional proxies if there are insufficient votes at the time of the Special Meeting to approve Proposal No. 1. 
               
             | 
             | 
|  | RECORD DATE |  |  | You are entitled to vote if you were a stockholder at the close of business on , 2022. A list of stockholders entitled to vote at the meeting will be available for inspection at the Company’s principal office at 101 S. Capitol Blvd., Suite 1000, Boise, Idaho 83702 for a period of 10 days prior to the Special Meeting of Stockholders and will also be available for inspection at the meeting. |  | 
|  | VOTING BY PROXY |  |  | Your vote is important. Whether or not you are able to attend the Special Meeting of Stockholders in person (virtually), it is important that your shares be represented. We have provided instructions on each of the alternative voting methods in the accompanying Proxy Statement. Please submit a proxy to vote your shares as soon as possible. |  | 
|  |  |  | 
               
                Page 
               
             | 
             | |||
|  |  |  |  | i |  |  | |
| SUMMARY |  |  |  |  | 1 |  |  | 
|  |  |  |  | 11 |  |  | |
|  |  |  |  | 16 |  |  | |
|  |  |  |  | 18 |  |  | |
|  |  |  |  | 29 |  |  | |
|  |  |  |  | 70 |  |  | |
|  |  |  |  | 83 |  |  | |
|  |  |  |  | 84 |  |  | |
|  |  |  |  | 85 |  |  | |
|  |  |  |  | 85 |  |  | |
|  |  |  |  | 87 |  |  | |
|  |  |  |  | 88 |  |  | |
|  |  |  |  | 92 |  |  | |
|  |  |  |  | 94 |  |  | |
|  |  |  |  |  | A-1 |  |  | |
|  |  |  |  |  | B-1 |  |  | |
|  |  |  |  |  | C-1 |  |  | |
|  |  |  |  |  | D-1 |  |  | 
| 
                *
                 | 
              
                *
                 | 
              
                *
                 | 
              
                *
                 | 
              * | 
| 
               
                Selected Comparable Companies 
               
             | 
             |  | 
               
                Median 
               
             | 
             |  | 
               
                Average 
               
             | 
             |  | 
               
                Range 
               
             | 
             | ||||||
| 
               
                Specialty Waste Companies 
               
             | 
             |  |  |  | 8.9x |  |  |  |  |  | 9.6x |  |  |  | 
               
                6.7x – 14.0x 
               
             | 
             | 
| 
               
                Solid Waste Companies 
               
             | 
             |  |  |  | 13.9x |  |  |  |  |  | 15.6x |  |  |  | 
               
                13.5x – 19.4x
               
             | 
             | 
|  |  |  | 
               
                Low 
               
             | 
             |  | 
               
                High 
               
             | 
             | ||||||
| 
               
                Implied Price per Share of Company Common Stock
               
             | 
             |  |  | $ | 27.00 |  |  |  |  | $ | 38.50 |  |  | 
| 
               
                Announcement Date 
               
             | 
             |  | 
               
                Specialty/Solid Waste 
               
             | 
             |  | 
               
                Acquiror 
               
             | 
             |  | 
               
                Target 
               
             | 
             | 
| January 2016 |  |  | Solid Waste |  |  | 
               
                Waste Connections, Inc. 
               
             | 
             |  | 
               
                Progressive Waste Solutions Ltd. 
               
             | 
             | 
| June 2018 |  |  | Specialty Waste |  |  | 
               
                Hennessy Capital Acquisition
                 
            Corp. III  | 
             |  | 
               
                NRC Group Holdings, LLC 
               
             | 
             | 
| November 2018 |  |  | Specialty Waste |  |  | 
               
                The Company 
               
             | 
             |  | 
               
                Ecoserv Industrial Disposal, LLC 
               
             | 
             | 
| April 2019 |  |  | Solid Waste |  |  | 
               
                Waste Management, Inc. 
               
             | 
             |  | 
               
                Advanced Disposal Services, Inc. 
               
             | 
             | 
| May 2019 |  |  | Specialty Waste |  |  | 
               
                Harsco Corporation 
               
             | 
             |  | 
               
                Clean Earth, Inc. 
               
             | 
             | 
| June 2019 |  |  | Specialty Waste |  |  | 
               
                The Company 
               
             | 
             |  | 
               
                NRC Group Holdings Corp. 
               
             | 
             | 
| February 2020 |  |  | Specialty Waste |  |  | 
               
                Harsco Corporation 
               
             | 
             |  | 
               
                Stericycle Environmental Solutions, Inc. 
               
             | 
             | 
| June 2020 |  |  | Solid Waste |  |  | 
               
                GFL Environmental Inc. 
               
             | 
             |  | 
               
                Waste Management, Inc. / Advanced Disposal Services, Inc. assets 
               
             | 
             | 
| August 2020 |  |  | Solid Waste |  |  | 
               
                GFL Environmental Inc. 
               
             | 
             |  | 
               
                WCA Waste Corporation 
               
             | 
             | 
| March 2021 |  |  | Specialty Waste |  |  | 
               
                GFL Environmental Inc. 
               
             | 
             |  | 
               
                Terrapure Environmental Ltd. 
               
             | 
             | 
| July 2021 |  |  | Solid Waste |  |  | 
               
                EQT AB 
               
             | 
             |  | 
               
                Covanta Holding Corporation 
               
             | 
             | 
| August 2021 |  |  | Specialty Waste |  |  | 
               
                Clean Harbors, Inc. 
               
             | 
             |  | 
               
                HydroChemPSC
               
             | 
             | 
|  |  |  | 
               
                EV/LTM EBITDA 
               
             | 
             | |||
| 
               
                Average
               
             | 
             |  |  |  | 10.2x |  |  | 
| 
               
                Median
               
             | 
             |  |  |  | 10.1x |  |  | 
|  |  |  | 
               
                Low 
               
             | 
             |  | 
               
                High 
               
             | 
             | ||||||
| 
               
                Implied Price per Share of Company Common Stock
               
             | 
             |  |  | $ | 25.00 |  |  |  |  | $ | 34.50 |  |  | 
|  |  |  | 
               
                Selected Terminal Value
                 
            Perpetuity Growth Rates  | 
             |  | 
               
                Implied Value per Share of 
                 
            Company Common Stock  | 
             | 
| 
               
                Discount Rates of 8.5% – 9.5%
               
             | 
             |  | 
               
                2.0% – 3.0% 
               
             | 
             |  | 
               
                $38.50 – $59.00
               
             | 
             | 
|  |  |  | 
               
                Selected EV to NTM Adjusted 
                 
            EBITDA multiple Range  | 
             |  | 
               
                Implied Value per Share of 
                 
            Company Common Stock  | 
             | 
| 
               
                Present Value of Future Stock Price
               
             | 
             |  | 
               
                8.5x – 10.5x 
               
             | 
             |  | 
               
                $47.50 – $62.00
               
             | 
             | 
| 
               
                Financial Metric 
               
             | 
             |  | 
               
                Low 
               
             | 
             |  | 
               
                High 
               
             | 
             |  | 
               
                Median 
               
             | 
             |  | 
               
                Mean 
               
             | 
             | ||||||||||||
| 
               
                CY 2021E Adjusted EBITDA 
               
             | 
             |  |  |  | 6.1x |  |  |  |  |  | 15.4x |  |  |  |  |  | 9.8x |  |  |  |  |  | 10.3x |  |  | 
| 
               
                CY 2022E Adjusted EBITDA 
               
             | 
             |  |  |  | 7.2x |  |  |  |  |  | 14.7x |  |  |  |  |  | 9.1x |  |  |  |  |  | 10.0x |  |  | 
| 
               
                CY 2023E Adjusted EBITDA 
               
             | 
             |  |  |  | 7.2x |  |  |  |  |  | 12.7x |  |  |  |  |  | 8.6x |  |  |  |  |  | 9.3x |  |  | 
| 
               
                Financial Metric 
               
             | 
             |  | 
               
                Selected Multiple Range 
               
             | 
             |  | 
               
                Implied Per Share Equity
                 
            Value Reference Range  | 
             | 
| 
               
                CY 2021 Adjusted EBITDA 
               
             | 
             |  | 
               
                10.0x – 12.0x 
               
             | 
             |  | 
               
                $26.46 – $36.20 
               
             | 
             | 
| 
               
                CY 2022E Adjusted EBITDA 
               
             | 
             |  | 
               
                8.5x – 10.5x 
               
             | 
             |  | 
               
                $26.49 – $37.87 
               
             | 
             | 
| 
               
                CY 2023E Adjusted EBITDA 
               
             | 
             |  | 
               
                8.0x – 10.0x 
               
             | 
             |  | 
               
                $33.92 – $47.75
               
             | 
             | 
| 
               
                Date Announced 
               
             | 
             |  | 
               
                Target 
               
             | 
             |  | 
               
                Acquiror 
               
             | 
             | 
| 8/4/2021 |  |  | HydroChemPSC |  |  | Clean Harbors, Inc. |  | 
| 7/14/2021 |  |  | Covanta Holding Corporation |  |  | EQT Partners AB; EQT Infrastructure V |  | 
| 3/15/2021 |  |  | Terrapure Environmental Ltd. (Solid Waste and Environmental Solutions Business) |  |  | GFL Environmental Inc. |  | 
| 2/7/2020 |  |  | Stericycle Environmental Solutions, Inc. (Domestic Environmental Solutions Business) |  |  | Harsco Corporation |  | 
| 5/9/2019 |  |  | CEHI Acquisition Corporation |  |  | Harsco Corporation |  | 
| 3/1/2018 |  |  | Newalta Corporation |  |  | Tervita Corporation |  | 
| 1/23/2018 |  |  | Veolia Environmental Solutions Services North America Corp. (U.S. Industrial Cleaning Services division) |  |  | Clean Harbors, Inc. |  | 
| 
               
                Financial Metric 
               
             | 
             |  | 
               
                Low 
               
             | 
             |  | 
               
                High 
               
             | 
             |  | 
               
                Median 
               
             | 
             |  | 
               
                Mean 
               
             | 
             | ||||||||||||
| 
               
                LTM Adjusted EBITDA* 
               
             | 
             |  |  |  | 9.5x |  |  |  |  |  | 13.2x |  |  |  |  |  | 10.8x |  |  |  |  |  | 11.1x |  |  | 
| 
               
                Financial Metric 
               
             | 
             |  | 
               
                Selected Multiple Range 
               
             | 
             |  | 
               
                Implied Per Share Equity
                 
            Value Reference Range  | 
             | 
| 
               
                LTM Adjusted EBITDA 
               
             | 
             |  | 
               
                10.5x – 12.5x 
               
             | 
             |  | 
               
                $28.79 – $38.51
               
             | 
             | 
| 
               
                ($ in millions) 
               
             | 
             |  | 
               
                2022 
               
             | 
             |  | 
               
                2023 
               
             | 
             |  | 
               
                2024 
               
             | 
             |  | 
               
                2025 
               
             | 
             |  | 
               
                2026 
               
             | 
             | |||||||||||||||
| 
               
                Revenue 
               
             | 
             |  |  |  | 1,040 |  |  |  |  |  | 1,123 |  |  |  |  |  | 1,224 |  |  |  |  |  | 1,297 |  |  |  |  |  | 1,373 |  |  | 
| 
               
                Adjusted EBITDA(1)
               
             | 
             |  |  |  | 181 |  |  |  |  |  | 224 |  |  |  |  |  | 268 |  |  |  |  |  | 294 |  |  |  |  |  | 320 |  |  | 
| 
               
                Adjusted EBITDA (excluding SBC and ROI)(2)
               
             | 
             |  |  |  | 174 |  |  |  |  |  | 214 |  |  |  |  |  | 252 |  |  |  |  |  | 274 |  |  |  |  |  | 299 |  |  | 
| 
               
                Unlevered Cash Flows(3)
               
             | 
             |  |  |  | 66 |  |  |  |  |  | 77 |  |  |  |  |  | 104 |  |  |  |  |  | 135 |  |  |  |  |  | 167 |  |  | 
| 
               
                Unlevered Free Cash Flows (Enterprise)(4)
               
             | 
             |  |  |  | 62 |  |  |  |  |  | 87 |  |  |  |  |  | 114 |  |  |  |  |  | 118 |  |  |  |  |  | 151 |  |  | 
| 
               
                Unlevered Free Cash Flows (ROI)(5)
               
             | 
             |  |  |  | 0 |  |  |  |  |  | (15) |  |  |  |  |  | (17) |  |  |  |  |  | 9 |  |  |  |  |  | 9 |  |  | 
| CapEx(6) |  |  |  |  | 97 |  |  |  |  |  | 93 |  |  |  |  |  | 91 |  |  |  |  |  | 82 |  |  |  |  |  | 75 |  |  | 
| 
               
                Executive Officer(2)
               
             | 
             |  | 
               
                Cash(3)
               
             | 
             |  | 
               
                Equity(4)
               
             | 
             |  | 
               
                Perquisites/ 
            Benefits(5)  | 
             |  | 
               
                Total 
               
             | 
             | ||||||||||||
| 
               
                Jeffrey R. Feeler
                 
            President and Chief Executive Officer  | 
             |  |  | $ | 4,171,875 |  |  |  |  | $ | 5,705,406 |  |  |  |  | $ | 237,347 |  |  |  |  | $ | 10,114,628 |  |  | 
| 
               
                Simon G. Bell
                 
            Executive Vice President and Chief Operating Officer  | 
             |  |  | $ | 1,951,125 |  |  |  |  | $ | 1,949,458 |  |  |  |  | $ | 71,577 |  |  |  |  | $ | 3,972,160 |  |  | 
| 
               
                Eric L. Gerratt
                 
            Executive Vice President, Chief Financial Officer and Treasurer  | 
             |  |  | $ | 1,823,250 |  |  |  |  | $ | 1,888,234 |  |  |  |  | $ | 73,043 |  |  |  |  | $ | 3,784,527 |  |  | 
| 
               
                Steven D. Welling  
            Executive Vice President of Sales and Marketing  | 
             |  |  | $ | 1,823,250 |  |  |  |  | $ | 1,897,802 |  |  |  |  | $ | 77,600 |  |  |  |  | $ | 3,798,652 |  |  | 
| 
               
                Andrew P. Marshall
                 
            Executive Vice President of Regulatory Compliance & Safety  | 
             |  |  | $ | 1,373,625 |  |  |  |  | $ | 1,132,926 |  |  |  |  | $ | 69,176 |  |  |  |  | $ | 2,575,727 |  |  | 
| Non-Employee Directors(6) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
               
                Richard Burke 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                E. Renae Conley 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Katina Dorton 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Glenn A. Eisenberg 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Daniel Fox 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Mack L. Hogans 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Ronald C. Keating 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                John T. Sahlberg 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Melanie Steiner 
               
             | 
             |  |  |  | — |  |  |  |  | $ | 112,500 |  |  |  |  |  | — |  |  |  |  | $ | 112,500 |  |  | 
| 
               
                Quarter 
               
             | 
             |  | 
               
                Market Price 
               
             | 
             | |||||||||
|  | 
               
                High 
               
             | 
             |  | 
               
                Low 
               
             | 
             | ||||||||
| 
               
                First Quarter 2020 
               
             | 
             |  |  | $ | 58.36 |  |  |  |  | $ | 24.94 |  |  | 
| 
               
                Second Quarter 2020 
               
             | 
             |  |  | $ | 39.31 |  |  |  |  | $ | 26.69 |  |  | 
| 
               
                Third Quarter 2020 
               
             | 
             |  |  | $ | 39.17 |  |  |  |  | $ | 29.89 |  |  | 
| 
               
                Fourth Quarter 2020 
               
             | 
             |  |  | $ | 37.32 |  |  |  |  | $ | 29.89 |  |  | 
| 
               
                First Quarter 2021 
               
             | 
             |  |  | $ | 45.72 |  |  |  |  | $ | 32.53 |  |  | 
| 
               
                Second Quarter 2021 
               
             | 
             |  |  | $ | 43.87 |  |  |  |  | $ | 36.56 |  |  | 
| 
               
                Third Quarter 2021 
               
             | 
             |  |  | $ | 38.28 |  |  |  |  | $ | 32.21 |  |  | 
| 
               
                Fourth Quarter 2021 
               
             | 
             |  |  | $ | 36.70 |  |  |  |  | $ | 28.91 |  |  | 
| 
               
                First Quarter 2022 as of February 8, 2022(1)
               
             | 
             |  |  | $ | 32.63 |  |  |  |  | $ | 26.26 |  |  | 
| 
               
                Directors 
               
             | 
             |  | 
               
                Shares Owned 
               
             | 
             |  | 
               
                Right to Acquire (Exercisable within
                 
            60 days of March 9, 2022)  | 
             |  | 
               
                Total 
               
             | 
             |  | 
               
                Percent
                 
            of Class  | 
             | ||||||||||||
| Directors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
               
                Richard Burke 
               
             | 
             |  |  |  | 2,900 |  |  |  |  |  | 10,800 |  |  |  |  |  | 13,700 |  |  |  |  |  | * |  |  | 
| 
               
                E. Renae Conley 
               
             | 
             |  |  |  | 8,650 |  |  |  |  |  | — |  |  |  |  |  | 8,650 |  |  |  |  |  | * |  |  | 
| 
               
                Katina Dorton 
               
             | 
             |  |  |  | 13,500 |  |  |  |  |  | — |  |  |  |  |  | 13,500 |  |  |  |  |  | * |  |  | 
| 
               
                Glenn A. Eisenberg 
               
             | 
             |  |  |  | 9,000 |  |  |  |  |  | — |  |  |  |  |  | 9,000 |  |  |  |  |  | * |  |  | 
| 
               
                Jeffrey R. Feeler 
               
             | 
             |  |  |  | 121,927 |  |  |  |  |  | 98,432 |  |  |  |  |  | 220,359 |  |  |  |  |  | * |  |  | 
| 
               
                Daniel Fox 
               
             | 
             |  |  |  | 14,440 |  |  |  |  |  | — |  |  |  |  |  | 14,440 |  |  |  |  |  | * |  |  | 
| 
               
                Mack L. Hogans 
               
             | 
             |  |  |  | 3,800 |  |  |  |  |  | — |  |  |  |  |  | 3,800 |  |  |  |  |  | * |  |  | 
| 
               
                Ronald C. Keating 
               
             | 
             |  |  |  | 9,800 |  |  |  |  |  | — |  |  |  |  |  | 9,800 |  |  |  |  |  | * |  |  | 
| 
               
                John T. Sahlberg 
               
             | 
             |  |  |  | 14,306 |  |  |  |  |  | — |  |  |  |  |  | 14,306 |  |  |  |  |  | * |  |  | 
| 
               
                Melanie Steiner 
               
             | 
             |  |  |  | 7,100 |  |  |  |  |  | — |  |  |  |  |  | 7,100 |  |  |  |  |  | * |  |  | 
| Executive Officers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
               
                Jeffrey R. Feeler 
               
             | 
             |  |  |  | 121,927 |  |  |  |  |  | 98,432 |  |  |  |  |  | 220,359 |  |  |  |  |  | * |  |  | 
| 
               
                Simon G. Bell 
               
             | 
             |  |  |  | 59,335 |  |  |  |  |  | 47,601 |  |  |  |  |  | 106,936 |  |  |  |  |  | * |  |  | 
| 
               
                Steven. D. Welling
               
             | 
             |  |  |  | 47,533 |  |  |  |  |  | 47,734 |  |  |  |  |  | 95,267 |  |  |  |  |  | * |  |  | 
| 
               
                Eric L. Gerratt 
               
             | 
             |  |  |  | 45,547 |  |  |  |  |  | 46,934 |  |  |  |  |  | 92,481 |  |  |  |  |  | * |  |  | 
| 
               
                Andrew P. Marshall 
               
             | 
             |  |  |  | 25,544 |  |  |  |  |  | 29,327 |  |  |  |  |  | 54,871 |  |  |  |  |  | * |  |  | 
| 
               
                All directors and executive officers as a group 
               
             | 
             |  |  |  | 383,382 |  |  |  |  |  | 280,828 |  |  |  |  |  | 664,210 |  |  |  |  |  |  |  |  | 
| 
               
                Name and Address of Beneficial Owner 
               
             | 
             |  | 
               
                Number of Shares 
                 
            Beneficially Owned  | 
             |  | 
               
                Percent
                 
            of Class  | 
             | ||||||
| 
               
                BlackRock, Inc.
                 
            55 East 52nd Street New York, NY 10055  | 
             |  |  |  | 5,000,774 |  |  |  |  |  | 15.9% |  |  | 
| 
               
                Magnetar Financial LLC
                 
            1603 Orrington Avenue, 13th Floor Evanston, Illinois 60201.  | 
             |  |  |  | 2,060,731 |  |  |  |  |  | 6.59% |  |  | 
| 
               
                The Vanguard Group
                 
            100 Vanguard Blvd. Malvern, PA 19355  | 
             |  |  |  | 2,023,122 |  |  |  |  |  | 6.42% |  |  | 
| 
               
                Thrivent Financial for Lutherans
                 
            901 Marquette Avenue, Suite 2500 Minneapolis, Minnesota 55402  | 
             |  |  |  | 1,989,914 |  |  |  |  |  | 6.31% |  |  | 
| 
               
                Wellington Management Group LLP
                 
            c/o Wellington Management Company LLP 280 Congress Street Boston, MA 02210  | 
             |  |  |  | 1,834,267 |  |  |  |  |  | 5.82% |  |  | 
|  |  |  |  |  | A-1 |  |  | |
|  |  |  |  |  | A-1 |  |  | |
|  |  |  |  |  | A-1 |  |  | |
|  |  |  |  |  | A-1 |  |  | |
|  |  |  |  |  | A-2 |  |  | |
|  |  |  |  |  | A-2 |  |  | |
|  |  |  |  |  | A-2 |  |  | |
|  |  |  |  |  | A-2 |  |  | |
|  |  |  |  |  | A-2 |  |  | |
|  |  |  |  |  | A-3 |  |  | |
|  |  |  |  |  | A-4 |  |  | |
|  |  |  |  |  | A-5 |  |  | |
|  |  |  |  |  | A-5 |  |  | |
|  |  |  |  |  | A-5 |  |  | |
|  |  |  |  |  | A-5 |  |  | |
|  |  |  |  |  | A-6 |  |  | |
|  |  |  |  |  | A-7 |  |  | |
|  |  |  |  |  | A-7 |  |  | |
|  |  |  |  |  | A-7 |  |  | |
|  |  |  |  |  | A-9 |  |  | |
|  |  |  |  |  | A-10 |  |  | |
|  |  |  |  |  | A-12 |  |  | |
|  |  |  |  |  | A-12 |  |  | |
|  |  |  |  |  | A-14 |  |  | |
|  |  |  |  |  | A-15 |  |  | |
|  |  |  |  |  | A-15 |  |  | |
|  |  |  |  |  | A-16 |  |  | |
|  |  |  |  |  | A-16 |  |  | |
|  |  |  |  |  | A-16 |  |  | |
|  |  |  |  |  | A-18 |  |  | |
|  |  |  |  |  | A-19 |  |  | |
|  |  |  |  |  | A-20 |  |  | |
|  |  |  |  |  | A-21 |  |  | |
|  |  |  |  |  | A-22 |  |  | |
|  |  |  |  |  | A-22 |  |  | |
|  |  |  |  |  | A-22 |  |  | |
|  |  |  |  |  | A-22 |  |  | 
|  |  |  |  |  | A-22 |  |  | |
|  |  |  |  |  | A-22 |  |  | |
|  |  |  |  |  | A-22 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-24 |  |  | |
|  |  |  |  |  | A-25 |  |  | |
|  |  |  |  |  | A-25 |  |  | |
|  |  |  |  |  | A-25 |  |  | |
|  |  |  |  |  | A-27 |  |  | |
|  |  |  |  |  | A-28 |  |  | |
|  |  |  |  |  | A-30 |  |  | |
|  |  |  |  |  | A-32 |  |  | |
|  |  |  |  |  | A-33 |  |  | |
|  |  |  |  |  | A-34 |  |  | |
|  |  |  |  |  | A-37 |  |  | |
|  |  |  |  |  | A-37 |  |  | |
|  |  |  |  |  | A-37 |  |  | |
|  |  |  |  |  | A-37 |  |  | |
|  |  |  |  |  | A-37 |  |  | |
|  |  |  |  |  | A-38 |  |  | |
|  |  |  |  |  | A-38 |  |  | |
|  |  |  |  |  | A-38 |  |  | |
|  |  |  |  |  | A-38 |  |  | |
|  |  |  |  |  | A-38 |  |  | |
|  |  |  |  |  | A-38 |  |  | |
|  |  |  |  |  | A-39 |  |  | |
|  |  |  |  |  | A-39 |  |  | |
|  |  |  |  |  | A-39 |  |  | |
|  |  |  |  |  | A-40 |  |  | |
|  |  |  |  |  | A-40 |  |  | |
|  |  |  |  |  | A-40 |  |  | |
|  |  |  |  |  | A-40 |  |  | |
|  |  |  |  |  | A-41 |  |  | |
|  |  |  |  |  | A-41 |  |  | |
|  |  |  |  |  | A-41 |  |  | |
|  |  |  |  |  | A-42 |  |  | |
|  |  |  |  |  | A-43 |  |  | 
|  |  |  |  |  | A-43 |  |  | |
|  |  |  |  |  | A-43 |  |  | |
|  |  |  |  |  | A-43 |  |  | |
|  |  |  |  |  | A-43 |  |  | |
|  |  |  |  |  | A-51 |  |  | |
|  |  |  |  |  | A-52 |  |  | |
|  |  |  |  |  | A-52 |  |  | |
|  |  |  |  |  | A-52 |  |  | |
|  |  |  |  |  | A-52 |  |  | |
|  |  |  |  |  | A-53 |  |  | |
|  |  |  |  |  | A-53 |  |  | |
|  |  |  |  |  | A-54 |  |  | |
|  |  |  |  |  | A-54 |  |  | |
|  |  |  |  |  | A-54 |  |  | |
|  |  |  |  |  | A-54 |  |  | |
|  |  |  |  |  | A-54 |  |  | |
|  |  |  |  |  | A-54 |  |  | |
|  |  |  |  |  | A-55 |  |  | 
|  | If to Parent, Merger Sub or, after the Effective Time, the Company or the Surviving Corporation, to: |  |  | 
              Republic Services, Inc.
               18500 N. Allied Way Phoenix, AZ 85054 Attention: Catharine Ellingsen, Chief Legal Officer Email: CEllingsen@republicservices.com  | 
             | 
|  | with a copy (which will not constitute notice to Parent or Merger Sub) to: |  |  | 
              Davis Polk & Wardwell LLP
               450 Lexington Avenue New York, New York 10017  | 
             | 
|  |  |  |  | 
              Attention: Marc O. Williams 
               Brian Wolfe  | 
             | 
|  |  |  |  | 
              Email:      marc.williams@davispolk.com 
               brian.wolfe@davispolk.com  | 
             | 
|  | If to the Company, prior to the Effective Time, to: |  |  | 
              US Ecology, Inc.
               101 S. Capitol Blvd., Suite 1000 Boise, Idaho 83702 Attention: Wayne Ipsen, General Counsel Email: wayne.ipsen@usecology.com  | 
             | 
|  | with a copy (which will not constitute notice to the Company) to: |  |  | 
              Dechert LLP
               Cira Centre 2929 Arch Street Philadelphia, PA 19104  | 
             | 
|  |  |  |  | 
              Attention: Stephen Leitzell 
               Michael Darby  | 
             | 
|  |  |  |  | 
              Email:      stephen.leitzell@dechert.com; 
               michael.darby@dechert.com  | 
             | 
|  | 
               | 
             |  | 
               
                745 Seventh Avenue
                 
            New York, NY 10019 United States  | 
             |