Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000773599 | |||
| Series S000010644 | Columbia Mid Cap Growth Fund, Inc. | ||
| Class/Contract C000029497 | Class A | ||
| Class/Contract C000029498 | Class B | ||
| Class/Contract C000029499 | Class C | ||
| Class/Contract C000029500 | Class D | ||
| Class/Contract C000029501 | Class G | ||
| Class/Contract C000029502 | Class R | ||
| Class/Contract C000029503 | Class T | ||
| Class/Contract C000029504 | Class Z | ||
IRS No.: 930896403 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 497 | Act: 33 | File No.: 002-99207 | Film No.: 06635849