Exhibit 99.1

PRESS RELEASE

MWV Reports First Quarter Sales and Earnings Growth

First Quarter 2014 Highlights:

RICHMOND, Va., April 30, 2014—MeadWestvaco Corporation (NYSE: MWV), a global leader in packaging and packaging solutions, reported improved results and EBITDA margin expansion in all packaging businesses in the first quarter of 2014 compared to the first quarter of 2013 (see table below). As a result, total company EBITDA ex-items increased 24% to $191 million, or 14% of sales. Refer to the “Use of Non-GAAP Measures” section of this release for further information.

“We are focused on ensuring that continued progress with our profitable growth strategy becomes even more evident in our bottom line performance, aiming for market-leading margins in each business,” said John A. Luke Jr., chairman and chief executive officer, MWV. “Through disciplined execution of our strategy, we more than doubled earnings per share compared to the first quarter last year, and increased profitability in each of our packaging businesses.

“Our end-market participation strategies have delivered market share gains with top customers, along with increased sales of innovative new products and growth in key regions around the world,” Luke continued. “During the first quarter, we increased volumes for beverage packaging, aseptic liquid packaging and food service paperboard. We also delivered double digit sales growth across the plastic dispensing platform in Home, Health & Beauty, driven by the rebound in the North American lawn and garden market and strong growth in our fragrance business.

“In all, we made good progress in the first quarter and we are confident that our strategies will deliver even greater performance going forward – including increased earnings and cash flow for the full year.”

Quarterly Comparison

Sales from continuing operations in the first quarter of 2014 were $1.32 billion compared to $1.31 billion in the first quarter of 2013. Income from continuing operations attributable to the company in the first quarter of 2014 was $31 million or $0.18 per share, compared to a loss of $2 million or $0.01 per share in 2013. Income from continuing operations attributable to the company excluding special items was $39 million or $0.23 per share for the first quarter of 2014, compared to $16 million or $0.09 per share for the first quarter of 2013.

First Quarter Segment Results

Following is a summary of first quarter 2014 results by business segment. All comparisons of the results for the first quarter of 2014 are with the first quarter of 2013 on a continuing operations basis.

Food & Beverage

In the Food & Beverage segment, sales were $763 million in the first quarter of 2014 compared to $761 million in the first quarter of 2013. EBITDA increased 15% to $109 million in the first quarter of 2014 compared to $95 million in the first quarter of 2013.

Home, Health & Beauty

In the Home, Health & Beauty segment, sales were $205 million in the first quarter of 2014 compared to $188 million in the first quarter of 2013. EBITDA increased 45% to $29 million in the first quarter of 2014 compared to $20 million in the first quarter of 2013.

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Industrial

In the Industrial segment, sales were $128 million in the first quarter of 2014 compared to $132 million in the first quarter of 2013. EBITDA increased 24% to $26 million in the first quarter of 2014 compared to $21 million in the first quarter of 2013.

Specialty Chemicals

In the Specialty Chemicals segment, sales were $232 million in the first quarter of 2014 compared to $226 million in the first quarter of 2013. EBITDA increased 2% to $59 million in the first quarter of 2014 compared to $58 million in the first quarter of 2013.

Community Development and Land Management

Sales for the Community Development and Land Management segment were $2 million in the first quarter of 2014 compared to $5 million in the first quarter of 2013. A loss of $3 million was reported in the first quarter of 2014 compared to a loss of $4 million in the first quarter of 2013.

Other Items

During the first quarter of 2014, the company entered into an accelerated stock repurchase program with certain financial institutions and repurchased $300 million of MeadWestvaco’s common stock using proceeds from the recent transaction with Plum Creek Timber Company, Inc. As a result, approximately 7.5 million shares were retired; however, additional shares are expected to be received by the company at the conclusion of the program no later than June 30, 2014.

In the first quarter of 2014, total pre-tax input costs of energy, raw materials and freight increased by $13 million compared to the first quarter of 2013 on a continuing operations basis.

In the first quarter of 2014, the pre-tax impact on earnings from foreign currency exchange was flat compared to the first quarter of 2013 on a continuing operations basis.

Cash flow used in operating activities from continuing operations was $207 million in the first quarter of 2014 compared to $110 million in the first quarter of 2013, reflecting a one-time alternative minimum tax payment of $98 million pursuant to the sale of forestlands in the fourth quarter of 2013, as well as higher working capital levels including increased inventories from strong production in March in response to customer demand.

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Capital spending declined to $66 million in the first quarter of 2014 compared to $115 million in the first quarter of 2013, reflecting lower overall investment primarily related to the Covington biomass boiler, which was completed in the fourth quarter of 2013.

The effective tax rate attributable to continuing operations, excluding the effects of discrete tax items, was approximately 29% in the first quarter of 2014. The mix and level of earnings between domestic and foreign operations contributed to the difference between the effective tax rate and statutory rates.

During the first quarter of 2014, MWV paid a regular quarterly dividend of $0.25 per share and a special dividend of $1.00 per share using proceeds from the recent transaction with Plum Creek Timber Company, Inc. On April 28, 2014, MWV declared a regular quarterly dividend of $0.25 per common share. The payment of the dividend will be made on June 2, 2014, to shareholders of record at the close of business on May 8, 2014.

Second Quarter 2014 Outlook

For the second quarter of 2014, earnings excluding special items are expected to be well above last year. While the company anticipates negative impacts from the cost of raw materials and currency weaknesses, the principal factors driving the expected improvement are:

Conference Call

Investors may participate in the live conference call today at 10:00 a.m. EDT by dialing 1 (800) 230-1092 (toll-free domestic) or 1 (612) 332-0335 (international); passcode: MeadWestvaco. Please call to register at least 10 minutes before the conference call begins. The live conference call and presentation slides may be accessed on MWV’s website at www.mwv.com. After connecting to the home page, go to the Investors page and look for the link to the webcast. Please go to the website at least 15 minutes prior to the call to register, download and install any necessary audio software. A replay of the call will be available for one month via the telephone starting at 12:00 p.m. EDT on April 30, and can be accessed at 1 (800) 475-6701 (toll-free domestic) or 1 (320) 365-3844 (international); access code: 323581.

About MWV

MeadWestvaco Corporation (NYSE:MWV) is a global packaging company providing innovative solutions to the world’s most admired brands in the healthcare, beauty and personal care, food, beverage, home and garden, tobacco, and agricultural industries. The company also produces specialty chemicals for the automotive, energy and infrastructure industries, and maximizes the value of its development land holdings. MWV’s network of 125 facilities and 16,000 employees spans North America, South America, Europe and Asia. The company has been recognized for financial performance and environmental stewardship with a place on the Dow Jones Sustainability World Index every year since 2004. Learn more at www.mwv.com.

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Forward-looking Statements

Certain statements in this document and elsewhere by management of the company that are neither reported financial results nor other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such information includes, without limitation, the business outlook, assessment of market conditions, anticipated financial and operating results, strategies, future plans, contingencies and contemplated transactions of the company. Such forward-looking statements are not guarantees of future performance and are subject to known and unknown risks, uncertainties and other factors which may cause or contribute to actual results of company operations, or the performance or achievements of each company, or industry results, to differ materially from those expressed or implied by the forward-looking statements. In addition to any such risks, uncertainties and other factors discussed elsewhere herein, risks, uncertainties, and other factors that could cause or contribute to actual results differing materially from those expressed or implied for the forward-looking statements include, but are not limited to, events or circumstances which affect the ability of MeadWestvaco to realize improvements in operating earnings from the company’s ongoing cost reduction initiatives; the ability of MeadWestvaco to close announced and pending transactions; competitive pricing for the company’s products; impact from inflation on raw materials, energy and other costs; fluctuations in demand and changes in production capacities; relative growth or decline in the United States and international economies; government policies and regulations, including, but not limited to those affecting the environment, climate change, tax policies and the tobacco industry; the company’s continued ability to reach agreement with its unionized employees on collective bargaining agreements; the company’s ability to maximize the value of its development land holdings; adverse results in current or future litigation; currency movements; volatility and further deterioration of the capital markets; and other risk factors discussed in the company’s Annual Report on Form 10-K for the year ended December 31, 2013, and in other filings made from time to time with the SEC. MeadWestvaco undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Investors are advised, however, to consult any further disclosures made on related subjects in the company’s reports filed with the SEC.

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Consolidated Statements of Operations

In millions, except per share amounts (Unaudited)

MeadWestvaco Corporation and consolidated subsidiary companies

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Consolidated Balance Sheets

In millions (Unaudited)

MeadWestvaco Corporation and consolidated subsidiary companies

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Condensed Consolidated Statements of Cash Flow

In millions (Unaudited)

MeadWestvaco Corporation and consolidated subsidiary companies

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Segment Information

In millions (Unaudited)

MeadWestvaco Corporation and consolidated subsidiary companies

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Use of Non-GAAP Measures

The company has presented certain financial measures, defined below, which have not been prepared in accordance with generally accepted accounting principles (“GAAP”) and have provided a reconciliation to the most directly comparable financial measure calculated in accordance with GAAP. The company believes these non-GAAP measures provide investors, potential investors, securities analysts and others with useful information to evaluate the performance of the business, because such measures exclude items that management believes are not indicative of the ongoing operating results of the company.

Pre-tax Income, Net Income and Earnings Per Share – Ex-items

Results from continuing operations, adjusted to exclude the charges and benefits shown below, is not meant to be considered in isolation or as a substitute for pre- and after-tax income and earnings per share from continuing operations determined in accordance with GAAP. Set forth below is a reconciliation of pre- and after-tax income and earnings per share from continuing operations as calculated in accordance with GAAP to the respective financial measures on an adjusted basis.

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EBITDA and EBITDA Margins – Ex-items

Set forth below is a reconciliation of EBITDA and EBITDA Margins (ex-items) to the most directly comparable GAAP measures, Sales and Pre-tax Income.

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