Attached files

file filename
EX-32.1 - EX-32.1 - KAPSTONE PAPER & PACKAGING CORPa2223222zex-32_1.htm
EX-23.1 - EX-23.1 - KAPSTONE PAPER & PACKAGING CORPa2223222zex-23_1.htm
EX-31.2 - EX-31.2 - KAPSTONE PAPER & PACKAGING CORPa2223222zex-31_2.htm
EX-31.1 - EX-31.1 - KAPSTONE PAPER & PACKAGING CORPa2223222zex-31_1.htm
EX-32.2 - EX-32.2 - KAPSTONE PAPER & PACKAGING CORPa2223222zex-32_2.htm
EX-10.11 - EX-10.11 - KAPSTONE PAPER & PACKAGING CORPa2223222zex-10_11.htm
EXCEL - IDEA: XBRL DOCUMENT - KAPSTONE PAPER & PACKAGING CORPFinancial_Report.xls
10-K - 10-K - KAPSTONE PAPER & PACKAGING CORPa2223222z10-k.htm

QuickLinks -- Click here to rapidly navigate through this document


Exhibit 21.1

KAPSTONE PAPER AND PACKAGING CORPORATION
SUBSIDIARIES OF THE COMPANY

Consolidated Subsidiaries
  Organized Under Laws of   Percentage
Ownership
 

KapStone Kraft Paper Corporation

  Delaware     100 %

KapStone Charleston Kraft, LLC

  Delaware     100 %

KapStone Container Corporation

  Georgia     100 %

Longview Fibre Paper and Packaging, Inc

  Washington     100 %

KapStone Receivable, LLC

  Delaware     100 %

KapStone Europe SPRL

  Belgium     100 %

KapStone Asia Limited

  Hong Kong     100 %

        The mill located in Cowpens, South Carolina is owned by KapStone Container Corporation and does business as KapStone Kraft Paper Corporation.

        The mill located in Longview, Washington is owned by Longview Fibre Paper and Packaging, Inc. and does business as KapStone Kraft Paper Corporation. Seven corrugating manufacturing plants located in the Pacific Northwest are owned by Longview Fibre Paper and Packaging Inc. and do business as KapStone Container Corporation.

Non-Consolidated Subsidiaries

        None




QuickLinks

KAPSTONE PAPER AND PACKAGING CORPORATION SUBSIDIARIES OF THE COMPANY