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| | | | | Exhibit 21 |
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| SOUTH JERSEY INDUSTRIES, INC. |
| SIGNIFICANT SUBSIDIARIES OF REGISTRANT |
| AS OF DECEMBER 31, 2021 |
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| The following is a list of the significant subsidiaries of South Jersey Industries, Inc. in accordance with Item 601 of Regulation S-K. | |
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| | | Percentage of | | |
| | | Voting Securities | | |
| | | Directly or Indirectly | | State of |
| | | Owned by Immediate Parent | Relationship | Incorporation/Formation |
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| South Jersey Gas Company | | 100 | (3) | New Jersey |
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| Marina Energy LLC | | 100 | (2) | New Jersey |
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| South Jersey Energy Company | | 100 | (2) | New Jersey |
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| South Jersey Resources Group, LLC | | 100 | (2) | Delaware |
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| SJI Energy Enterprises, LLC | | 100 | (1) | New Jersey |
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| SJI Midstream, LLC | | 100 | (1) | Delaware |
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| SJI Utilities, Inc. | | 100 | (1) | New Jersey |
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| Elizabethtown Gas Company | | 100 | (3) | New Jersey |
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| SJI Renewable Energy Ventures, LLC | | 100 | (2) | New Jersey |
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| SJI RNG Devco, LLC | | 100 | (2) | New Jersey |
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| (1) Subsidiary of South Jersey Industries, Inc. | | |
| (2) Subsidiary of SJI Energy Enterprises, LLC | | |
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| (3) Subsidiary of SJI Utilities, Inc. | | | | |
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