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| Company Name: | SEMCO ENERGY, INC. |
| Employer identification number (EIN): | 382144267 |
| NAIC Classification: | 221210 |
| NAIC Description: | Natural Gas Distribution |
The following addresses have been detected on the 401k submissions:
| USA Mailing Address | |||||
|---|---|---|---|---|---|
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| Date first seen: 2007-01-01 | |||||
| Date last seen: 2025-11-24 | |||||
| USA Location Address | |||||
|---|---|---|---|---|---|
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| Date first seen: 2007-01-01 | |||||
| Date last seen: 2025-09-30 | |||||
| USA Mailing Address | |||||
|---|---|---|---|---|---|
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| Date first seen: 2007-01-01 | |||||
| Date last seen: 2025-10-04 | |||||
| USA Mailing Address | |||||
|---|---|---|---|---|---|
| |||||
| Date first seen: 2007-01-01 | |||||
| Date last seen: 2025-12-04 | |||||
| Date | Description |
|---|---|
| 2024-11-14 | 382144267 Change of plan name detected from SEMCO/ENSTAR NON-UNION RETIREMENT PLAN to SEMCO ENERGY, INC. NON-UNION EMPLOYEES\' RETIREMENT PLAN for plan ID 010 |
| 2024-10-11 | 382144267 Change of plan name detected from SEMCO/ENSTAR NON-UNION RETIREMENT PLAN to SEMCO ENERGY, INC. NON-UNION EMPLOYEES\' RETIREMENT PLAN for plan ID 010 |
| Plan id# | Plan Name | Plan Start Date | Plan Effective Date |
|---|---|---|---|
| 502 | SEMCO ENERGY, INC. FLEXIBLE BENEFIT PLAN | 2014-01-01 | 1998-07-01 |
| 006 | SEMCO ENERGY, INC. 401(K) PLAN | 2014-01-01 | 1986-01-01 |
| 010 | SEMCO ENERGY, INC. NON-UNION EMPLOYEES' RETIREMENT PLAN | 2015-01-01 | 1969-01-01 |
| 002 | SEMCO ENERGY, INC. UNION EMPLOYEES' RETIREMENT PLAN | 2012-01-01 | 1971-04-01 |
| 501 | GROUP INSURANCE PLAN | 2015-01-01 | 1957-05-01 |
| 521 | SEMCO ENERGY, INC. RETIREE MEDICAL PLAN | 2015-01-01 | 2010-01-01 |
| 020 | HOTFLAME EMPLOYEES' PROFIT SHARING/401(K) PLAN | 2015-01-01 | 1998-04-01 |
| 011 | ENSTAR NATURAL GAS COMPANY RETIREMENT PLAN FOR OPERATING AND CLERICAL UNIT EMPLOYEES | 2016-01-01 | 1979-01-01 |
| Date | Type of contribution | Contribution | Number of participants/employees | Average contribution per participant | |
|---|---|---|---|---|---|
| 2021-09-13 | Employer Contributions | $ 291,194 | 100 | $ 2,912 | |
| 2021-09-13 | Employee Contributions | $ 291,194 | 100 | $ 2,912 | |
| 2021-07-12 | Employer Contributions | $ 6,197 | 100 | $ 62 | |
| 2021-07-12 | Employee Contributions | $ 6,197 | 100 | $ 62 | |
| 2021-05-21 | Employer Contributions | $ 176,690 | 100 | $ 1,767 | |
| 2021-05-21 | Employee Contributions | $ 176,690 | 100 | $ 1,767 | |
| 2021-04-12 | Employer Contributions | $ 435,270 | 100 | $ 4,353 | |
| 2021-04-12 | Employee Contributions | $ 435,270 | 100 | $ 4,353 | |
| 2020-09-15 | Employer Contributions | $ 4,475,713 | 191 | $ 23,433 | |
| 2020-09-15 | Employee Contributions | $ 4,475,713 | 191 | $ 23,433 | |
| 2018-09-11 | Employer Contributions | $ 304,507 | 197 | $ 1,546 | |
| 2018-09-11 | Employee Contributions | $ 304,507 | 197 | $ 1,546 | |
| 2018-07-11 | Employer Contributions | $ 293,670 | 197 | $ 1,491 | |
| 2018-07-11 | Employee Contributions | $ 293,670 | 197 | $ 1,491 | |
| 2018-04-11 | Employer Contributions | $ 293,670 | 197 | $ 1,491 | |
| 2018-04-11 | Employee Contributions | $ 293,670 | 197 | $ 1,491 | |
| 2017-09-11 | Employer Contributions | $ 454,081 | 203 | $ 2,237 | |
| 2017-09-11 | Employee Contributions | $ 454,081 | 203 | $ 2,237 | |
| 2017-07-11 | Employer Contributions | $ 495,570 | 203 | $ 2,441 | |
| 2017-07-11 | Employee Contributions | $ 495,570 | 203 | $ 2,441 | |
| 2017-04-11 | Employer Contributions | $ 495,570 | 203 | $ 2,441 | |
| 2017-04-11 | Employee Contributions | $ 495,570 | 203 | $ 2,441 | |
| 2016-09-09 | Employer Contributions | $ 619,407 | 704 | $ 880 | |
| 2016-09-09 | Employee Contributions | $ 619,407 | 704 | $ 880 | |
| 2016-07-11 | Employer Contributions | $ 467,650 | 704 | $ 664 | |
| 2016-07-11 | Employee Contributions | $ 467,650 | 704 | $ 664 | |
| 2016-04-11 | Employer Contributions | $ 467,650 | 704 | $ 664 | |
| 2016-04-11 | Employee Contributions | $ 467,650 | 704 | $ 664 | |
| 2015-09-10 | Employer Contributions | $ 1,656,430 | 235 | $ 7,049 | |
| 2015-09-10 | Employee Contributions | $ 1,656,430 | 235 | $ 7,049 | |
| 2015-07-10 | Employer Contributions | $ 1,471,430 | 235 | $ 6,261 | |
| 2015-07-10 | Employee Contributions | $ 1,471,430 | 235 | $ 6,261 | |
| 2015-04-10 | Employer Contributions | $ 1,471,430 | 235 | $ 6,261 | |
| 2015-04-10 | Employee Contributions | $ 1,471,430 | 235 | $ 6,261 | |
| 2014-09-03 | Employer Contributions | $ 388,000 | 174 | $ 2,230 | |
| 2014-09-03 | Employee Contributions | $ 388,000 | 174 | $ 2,230 | |
| 2014-07-10 | Employer Contributions | $ 548,000 | 174 | $ 3,149 | |
| 2014-07-10 | Employee Contributions | $ 548,000 | 174 | $ 3,149 | |
| 2014-04-11 | Employer Contributions | $ 228,000 | 174 | $ 1,310 | |
| 2014-04-11 | Employee Contributions | $ 228,000 | 174 | $ 1,310 | |
| 2013-09-10 | Employer Contributions | $ 1,654,000 | 603 | $ 2,743 | |
| 2013-09-10 | Employee Contributions | $ 1,654,000 | 603 | $ 2,743 | |
| 2013-07-10 | Employer Contributions | $ 1,654,000 | 603 | $ 2,743 | |
| 2013-07-10 | Employee Contributions | $ 1,654,000 | 603 | $ 2,743 | |
| 2013-04-11 | Employer Contributions | $ 1,654,000 | 603 | $ 2,743 | |
| 2013-04-11 | Employee Contributions | $ 1,654,000 | 603 | $ 2,743 | |
| 2012-10-05 | Employer Contributions | $ 254,495 | 146 | $ 1,743 | |
| 2012-10-05 | Employee Contributions | $ 254,495 | 146 | $ 1,743 | |
| 2012-09-07 | Employer Contributions | $ 254,495 | 146 | $ 1,743 | |
| 2012-09-07 | Employee Contributions | $ 254,495 | 146 | $ 1,743 | |
| 2012-07-06 | Employer Contributions | $ 508,500 | 146 | $ 3,483 | |
| 2012-07-06 | Employee Contributions | $ 508,500 | 146 | $ 3,483 | |
| 2012-04-13 | Employer Contributions | $ 508,500 | 146 | $ 3,483 | |
| 2012-04-13 | Employee Contributions | $ 508,500 | 146 | $ 3,483 | |
| 2011-10-05 | Employer Contributions | $ 520,000 | 121 | $ 4,298 | |
| 2011-10-05 | Employee Contributions | $ 520,000 | 121 | $ 4,298 | |
| 2011-09-08 | Employer Contributions | $ 520,000 | 121 | $ 4,298 | |
| 2011-09-08 | Employee Contributions | $ 520,000 | 121 | $ 4,298 | |
| 2011-07-06 | Employer Contributions | $ 1,042,000 | 121 | $ 8,612 | |
| 2011-07-06 | Employee Contributions | $ 1,042,000 | 121 | $ 8,612 | |
| 2011-04-14 | Employer Contributions | $ 1,042,000 | 121 | $ 8,612 | |
| 2011-04-14 | Employee Contributions | $ 1,042,000 | 121 | $ 8,612 | |
| 2010-10-05 | Employer Contributions | $ 220,000 | 146 | $ 1,507 | |
| 2010-10-05 | Employee Contributions | $ 220,000 | 146 | $ 1,507 | |
| 2010-09-08 | Employer Contributions | $ 220,000 | 146 | $ 1,507 | |
| 2010-09-08 | Employee Contributions | $ 220,000 | 146 | $ 1,507 | |
| 2010-07-06 | Employer Contributions | $ 1,473,000 | 146 | $ 10,089 | |
| 2010-07-06 | Employee Contributions | $ 1,473,000 | 146 | $ 10,089 | |
| 2010-04-14 | Employer Contributions | $ 127,000 | 146 | $ 870 | |
| 2010-04-14 | Employee Contributions | $ 127,000 | 146 | $ 870 | |
| 2009-10-05 | Employer Contributions | $ 703,000 | 294 | $ 2,391 | |
| 2009-10-05 | Employee Contributions | $ 703,000 | 294 | $ 2,391 | |
| 2009-09-08 | Employer Contributions | $ 703,000 | 294 | $ 2,391 | |
| 2009-09-08 | Employee Contributions | $ 703,000 | 294 | $ 2,391 | |
| 2009-07-06 | Employer Contributions | $ 1,411,000 | 294 | $ 4,799 | |
| 2009-07-06 | Employee Contributions | $ 1,411,000 | 294 | $ 4,799 | |
| 2009-04-13 | Employer Contributions | $ 1,411,000 | 294 | $ 4,799 | |
| 2009-04-13 | Employee Contributions | $ 1,411,000 | 294 | $ 4,799 |
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