Chemical Bank Key State
| Status: | Inactive as of 01/01/2001 |
| Merger - Without Assistance | |
| Successor Bank: | Chemical Bank |
| Headquarters: | Chemical Bank Key State 100 East Main Street Owosso, MI 48867 |
| Established: | 01/01/1907 |
| FDIC Insurance: | 12/17/1934 |
| FDIC Cert: | #14921 |
| Charter Class: | Commercial bank, state charter and Fed nonmember, supervised by the FDIC |
| Total Assets: | $143,279,000 |
| Total Deposits: | $121,362,000 |
History
| 1907-01-01 | Institution established: Original name:The State Savings Bank of Owosso | |
| 1977-10-01 | Changed name to Key State Bank | |
| 1985-12-09 | Change trust powers from TRUST POWERS NOT GRANTED to FULL TRUST POWERS GRANTED | |
| 1991-11-20 | Change trust powers from FULL TRUST POWERS GRANTED to TRUST POWERS TERMINATED | |
| 1993-10-21 | Changed name to Chemical Bank Key State | |
| 1993-10-21 | Reorganized. | |
| 2001-01-01 | Acquired Chemical Bank Michigan (12890) in CLARE, MI | |
| 2001-01-01 | Acquired Chemical Bank Thumb Area (12175) in CARO, MI | |
| 2001-01-01 | Acquired Chemical Bank Key State in OWOSSO, MI | |
| 2001-01-01 | Acquired Chemical Bank Bay Area (12733) in BAY CITY, MI | |
| 2001-01-01 | Merged into and subsequently operated as part of Chemical Bank and Trust Company (1003) in MIDLAND, MI | |
| 2006-01-01 | Changed name to Chemical Bank (1003) | |
| 2006-01-01 | Acquired Chemical Bank Shoreline (11394) in BENTON HARBOR, MI | |
| 2006-01-01 | Acquired Chemical Bank West (26489) in WALKER, MI | |
| 2010-07-24 | Acquired Byron Bank (11405) in BYRON CENTER, MI | |
| 2014-11-01 | Acquired Northwestern Bank (30792) in TRAVERSE CITY, MI | |
| 2015-05-11 | Acquired Monarch Community Bank (29069) in COLDWATER, MI | |
| 2015-11-14 | Acquired The Bank of Holland (34862) in HOLLAND, MI | |
| 2015-11-14 | Acquired The Bank of Northern Michigan (35324) in PETOSKEY, MI | |
| 2016-11-11 | Acquired Talmer Bank and Trust (58132) in TROY, MI | |
| 2018-08-03 | Moved bank headquarters from MIDLAND, MI to DETROIT, MI | |
| 2019-08-01 | Merged into and subsequently operated as part of TCF National Bank (28330) in SIOUX FALLS, SD | |
| 2021-06-09 | Merged into and subsequently operated as part of The Huntington National Bank (6560) |