Subsidiaries of the Company

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Incorporated Under Laws of

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Percent Owned by the Company

Old Second National Bank

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United States

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100% of the common stock

Old Second Capital Trust II

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State of Delaware

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100% of the common stock

Old Second Affordable Housing Fund, L.L.C.

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State of Illinois

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Owned by Old Second National Bank

Station I, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 1, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 2, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 3, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 4, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 5, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 6, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 7, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 8, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 9, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 10, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 11, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 12, LLC

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State of Illinois

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Owned by Old Second National Bank

Melrose Holdings 13, LLC

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State of Illinois

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Owned by Old Second National Bank

River Street Advisors, LLC

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State of Illinois

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Owned by Old Second National Bank

West Suburban Insurance Services, Inc.

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State of Illinois

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Owned by Old Second National Bank