Exhibit 99.1

KAPSTONE REPORTS RECORD THIRD QUARTER RESULTS

ADJUSTED DILUTED EPS SOARS TO $1.05 PER SHARE, UP 156 PERCENT

NORTHBROOK, IL – October 30, 2013 – KapStone Paper and Packaging Corporation (NYSE:KS) today reported record results for the third quarter ended September 30, 2013. As compared to 2012’s third quarter, results for 2013’s third quarter are below:

·                  Net sales of $539 million up $229 million, or 74 percent

·                  Net income of $44 million up $26 million, or 144 percent

·                  Adjusted net income of $51 million up $31 million, or 155 percent

·                  Adjusted EBITDA of $117 million up $68 million, or 139 percent

·                  Adjusted EBITDA margin of 21.7 percent up from 15.8 percent

·                  Diluted EPS of $0.92 up $0.54 per share, or 142 percent

·                  Adjusted diluted EPS of $1.05 up $0.64 per share, or 156 percent

Roger W. Stone, Chairman and Chief Executive Officer, stated, “The third quarter was an exceptional quarter for KapStone. On July 18, 2013, we completed the Longview acquisition and while our third quarter results include only 75 days of Longview’s operations, the benefits of the acquisition are clear as Longview generated $54 million of adjusted EBITDA in the period.

“Excluding the impact of the Longview acquisition, legacy KapStone delivered all-time record adjusted EBITDA of $63 million due to higher containerboard and corrugated products prices despite higher fiber costs from the unusually wet summer.  Our consolidated adjusted EBITDA soared to a record $117 million, and we generated $75 million of free cash flow which we used to reduce our debt.”

Third Quarter Operating Highlights

Consolidated net sales of $539 million in the third quarter of 2013 increased by $229 million, or 74 percent compared to $310 million for the 2012 third quarter. The increase is primarily due to the Longview acquisition which contributed $198 million of additional revenue and higher average selling prices for the legacy operations. In 2013’s third quarter, 662,000 tons of paper were sold compared to 427,000 tons a year earlier. The Company’s average selling price increased by $18 per ton compared to the second quarter of 2013 and was $57 per ton higher

1

than the third quarter of 2012 due to the combined impact of 2012 and 2013 containerboard and corrugated products price increases and the inclusion of Longview.

Operating income of $80.7 million for the 2013 third quarter increased by $49.6 million, or 159 percent, compared to the 2012 third quarter. The improved financial performance primarily reflects benefits from the Longview acquisition and higher containerboard prices partially offset by higher fiber costs, lower production volumes, higher compensation and benefit costs and Longview transaction fees and acquisition expenses.

Interest expense, net, was $8.0 million for the third quarter of 2013, up $6.2 million from a year ago as a result of a higher debt balance associated with the Longview acquisition. At September 30, 2013, the average interest rate on our term loans was 2.60 percent. Amortization of debt issuance costs of $1.6 million for the third quarter of 2013 increased by $0.6 million from a year ago due to costs associated with the Company’s amended and restated credit agreement.

The effective income tax rate for the 2013 third quarter was 37.9 percent compared to 35.1 percent for the 2012 third quarter. The higher effective income tax rate in the 2013 third quarter is due to a discrete tax adjustment relating to prior year tax returns. For 2013, the Company estimates its cash tax rate to be approximately 11 percent reflecting complete utilization of remaining cellulosic biofuel tax credits.

Cash Flow and Working Capital

Cash and cash equivalents increased by $3.8 million in the quarter ended September 30, 2013, to $12.2 million reflecting $98.2 million of net cash provided by operating activities, $561.0 million of cash used in investing activities primarily reflecting the Longview acquisition and $466.6 million of cash provided by financing activities reflecting $1.3 billion of borrowings from our new credit facility offset by the repayment of $305.3 million of debt under the prior credit facility and the redemption of $507.5 million of Longview senior notes assumed as part of the acquisition.

Capital expenditures for the third quarter of 2013 totaled $23.6 million, including $7.0 million for Longview. The Company estimates $93.0 million of capital expenditures for the year.

At September 30, 2013, the Company had approximately $164.3 million of working capital and $358.8 million of revolver borrowing capacity.

Conclusion

In summary, Stone commented, “Our integration of Longview continues on plan.  We have now identified $18 million of synergies that should benefit KapStone by the end of 2015. However, more significant than the synergies identified thus far are the substantial benefits from operating efficiencies and capital programs in progress.  Looking ahead, we believe we are well positioned to improve our profitability by benefitting from full quarters of Longview results, strong performance from our legacy operations, and robust cash flows.”

2

Conference Call

KapStone will host a conference call at 11 a.m. EDT, Thursday, October 31, 2013, to discuss the Company’s financial results for the 2013 third quarter. All interested parties are invited to listen and may do so by either accessing a simultaneous broadcast webcast on KapStone’s website, http://www.kapstonepaper.com, or for those unable to access the webcast, the following dial-in numbers are available:

Domestic:  877.546.5020
International:  857.244.7552
Participant Passcode:  39786674

A presentation to be viewed in conjunction with the call will also be available on our website, http://www.kapstonepaper.com, in the “Investors” section.

Replay of the webcast will be available for 30 days on the Company’s website following the call.

About the Company

Headquartered in Northbrook, IL, KapStone Paper and Packaging Corporation is the fifth largest producer of containerboard and corrugated packaging products and is the largest kraft paper producer in the United States. The Company is the parent company of KapStone Kraft Paper Corporation and KapStone Container Corporation which includes four paper mills and 22 converting plants, respectively, across the US. The business employs approximately 4,500 people.

Non-GAAP Financial Measures

This press release includes certain non-GAAP financial measures, including “EBITDA”, “Adjusted EBITDA”, “Adjusted Net Income”, and “Adjusted Diluted EPS” to measure our operating performance. Management uses these measures to focus on the on-going operations, and believes it is useful to investors because they enable them to perform meaningful comparisons of past and present operating results. The Company believes that EBITDA and Adjusted EBITDA provide useful information to investors because they improve the comparability of the financial results between periods and provide for greater transparency to key measures used to evaluate the performance and liquidity of the Company. Management uses EBITDA and Adjusted EBITDA for evaluating the Company’s performance against competitors and as a primary measure for employees’ incentive programs. Reconciliations of Net Income to EBITDA, EBITDA to Adjusted EBITDA, Net Income to Adjusted Net Income, Basic EPS to Adjusted Basic EPS, and Diluted EPS to Adjusted Diluted EPS are included in the financial schedules contained in this press release. However, these measures should not be construed as an alternative to any other measure of performance determined in accordance with GAAP.

Forward-Looking Statements

Statements in this news release that are not historical are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements can often be identified by words such as “may,” “will,” “should,” “would,’ “expect,” “project,” “anticipate,” “intend,” “plan,” “believe,” “estimate,” “potential,” “outlook,” or “continue,” the negative of these terms or other similar expressions. These statements reflect management’s

3

current views and are subject to risks, uncertainties and assumptions, many of which are beyond the Company’s control that could cause actual results to differ materially from those expressed or implied in these statements. Factors that could cause actual results to differ materially include, but are not limited to: (1) industry conditions, including changes in cost, competition, changes in the Company’s product mix and demand and pricing for the Company’s products; (2) market and economic factors, including changes in raw material and healthcare costs, exchange rates and interest rates; (3) results of legal proceedings and compliance costs, including unanticipated expenditures related to the cost of compliance with environmental and other governmental regulations; (4) the ability to achieve and effectively manage growth; (5) the ability to pay the Company’s debt obligations; (6) the ability to carry out the Company’s strategic initiatives and manage associated costs and (7) the integration of the Longview acquisition. Further information on these and other risks and uncertainties is provided under Item 1A “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012 and elsewhere in reports that the Company files with the SEC. These filings can be found on KapStone’s Web site at http://www.kapstonepaper.com and the SEC’s Web site at www.sec.gov. Forward-looking statements included herein speak only as of the date hereof and the Company disclaims any obligation to revise or update such statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events or circumstances.

4

KapStone Paper and Packaging Corporation

Consolidated Statements of Income

(In thousands, except share and per share amounts)

(unaudited)

KapStone Paper and Packaging Corporation

Consolidated Balance Sheets

(In thousands)

KapStone Paper and Packaging Corporation

Consolidated Statements of Cash Flows

(In thousands)

(unaudited)