Exhibit 99.1

CONTINENTAL BUILDING PRODUCTS REPORTS FOURTH QUARTER

AND FULL YEAR 2015 RESULTS

- Earnings Per Share Increased 4% to $0.25 in Fourth Quarter as Compared to Prior Year –

- Repurchased 472,000 Shares of Common Stock and Lowered Debt $20 Million in the Fourth Quarter –

- Adjusted Earnings Per Share¹ Increased 52% to $0.84 for the Full Year Compared to $0.56 for the Prior Year; GAAP Earnings Per Share of $0.39 for the Full Year Compared to $0.37 for the Prior Year –

- Repurchased 2.4 Million Shares of Common Stock and Reduced Debt $55 Million for the Full Year –

Herndon, Virginia, February 22, 2016. Continental Building Products, Inc. (NYSE: CBPX) (the Company), a leading manufacturer of wallboard and gypsum-based products, announced today results for the fourth quarter and fiscal year ended December 31, 2015.

Highlights of Fourth Quarter 2015 as Compared to Fourth Quarter 2014

Highlights of Full Year 2015 as Compared to Full Year 2014

“We executed a fourth quarter that expanded adjusted EBITDA margins and produced another strong quarter of cash flow in the face of softer revenues,” stated Jay Bachmann, Continental’s Chief Executive Officer. “Our wallboard volume in the fourth quarter decreased versus prior year quarter as no pre-buy activity occurred with the change in timing of our price increase from January 1 to April 1. Even with this shift in volumes, we continued to generate strong cash flows from operations and deployed the cash for our stock repurchase program and to strengthen our balance sheet.”

Mr. Bachmann continued, “For the full year, our high cash flow from operations allowed us to repurchase $48.5 million of common stock and reduce our debt by $55.0 million. As we move forward, we believe our strong balance sheet and highly efficient, low cost operations provide us with the ability to optimize our earnings while taking advantage of opportunities that enhance value for stockholders.”

Fourth Quarter 2015 Results vs. Fourth Quarter 2014

Net income during the quarter grew to $10.6 million, or $0.25 per share, compared to $10.4 million, or $0.24 per share, in the prior year quarter.

Net sales for the fourth quarter of 2015 were $110.4 million, compared to $120.8 million in the fourth quarter of 2014. Wallboard volumes were 596 MMSF, compared to 627 MMSF in the prior year quarter. The average mill net price² was $148.37 per thousand square feet (MSF), compared to $152.79 per MSF in the prior year quarter, mainly due to a weaker Canadian dollar, regional sales mix and softer demand. At constant currency, average mill net price decreased 2.1% compared to the prior year quarter.

Gross profit was $28.9 million, compared to $31.7 million in the prior year quarter. The gross margin of 26.2% remained stable compared to the prior year quarter, primarily as a result of strict cost controls and favorable energy costs despite lower net sales.

SG&A expense was $8.1 million, compared to $10.2 million in the prior year quarter. SG&A as a percentage of sales improved to 7.3% compared to 8.5% in the prior year quarter, mainly attributable to cost saving initiatives.

Operating income was $20.8 million, compared to $21.5 million in the prior year quarter.

Interest expense was $3.9 million, down $0.7 million from $4.6 million in the prior year quarter, reflecting a reduction in the long-term debt.

Adjusted EBITDA¹ of $33.1 million increased as a percentage of net sales to 30.0%, compared to Adjusted EBITDA¹ of $34.5 million as a percentage of net sales of 28.5% in the prior year quarter.

Full Year 2015 Results vs. Full Year 2014

Adjusted net income¹ increased to $36.2 million, or $0.84 per share, compared to adjusted net income¹ of $23.8 million, or $0.56 per share, in the prior year. GAAP net income was $16.7 million, or $0.39 per share, compared to net income of $15.9 million, or $0.37 per share, in the prior year.

Net sales for the full year of 2015 were $421.7 million, compared to $424.5 million for the full year of 2014. Wallboard volumes increased 0.9% to 2,199 MMSF, compared to 2,180 MMSF in the prior year. The average wallboard mill net price² was $153.70 per MSF, compared to $154.77 in the prior year.

Gross profit was $108.8 million, up 15.4% from $94.3 million in the prior year. The gross margin of 25.8% increased from 22.2% in the prior year. SG&A expense was $34.9 million, compared to $33.6 million in the prior year.

The expense associated with the Company’s Long Term Incentive Plan (LTIP), which was implemented and was funded by Lone Star, was $29.9 million for the full year of 2015. Certain members of the Company’s management team earned payments under the LTIP in connection with Lone Star’s sale of common stock during 2015. These payments did not result in a net cash outlay by the Company as it was funded by Lone Star.

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Operating income was $44.0 million, compared to $60.8 million in the prior year, with the decrease primarily due to the LTIP expense in the full year of 2015, with no comparable expense in the prior year. Excluding the expense associated with the LTIP, operating income increased 21.7% compared to the prior year.

Interest expense was $16.4 million, compared to $29.1 million in the prior year, primarily reflecting a reduction in the long-term debt, a decrease in the interest rate on the Company’s borrowings and a non-recurring charge of $6.9 million in the prior year related to the early extinguishment of debt.

Adjusted EBITDA¹ increased 8.8% to $125.3 million, compared to $115.1 million in the prior year. Adjusted EBITDA¹ as a percentage of net sales was 29.7% compared to 27.1% in the prior year. Net income as a percentage of net sales was 4.0% compared to 3.7% in the prior year.

Balance Sheet and Cash Flow

At the end of the quarter on December 31, 2015, the Company had cash of $14.7 million and total debt outstanding of $294.6 million. During the full year of 2015, the Company generated operating cash flow of $82.6 million and incurred $10.0 million of capital expenditures and software development costs. During the full year of 2015, the Company used a portion of its operating cash flow for the voluntary repayment of $55.0 million of debt with the next principal payment on the Company’s debt not due until August 2020 when the full remaining amount comes due.

During the full year of 2015, the Company also used operating cash flow to purchase approximately 2.4 million shares of its common stock at an aggregate purchase price of $48.5 million. In May and September, the Company purchased a combined 1,920,700 shares from an affiliate of Lone Star in two separate private, non-underwritten transactions concurrent with two secondary public offerings. In November, the Company’s Board of Directors authorized a stock repurchase program under which the Company may repurchase shares of its outstanding common stock up to an aggregate amount of $50.0 million through the end of 2016. During the fourth quarter of 2015, the Company repurchased 472,185 shares for approximately $8.5 million under this new stock repurchase program.

Investor Conference Webcast and Conference Call:

The Company will host a webcast and conference call on Monday, February 22, 2016 at 5:00 p.m. Eastern time to review fourth quarter and full year 2015 financial results and discuss recent events and conduct a question-and-answer period. The live webcast will be available on the Investor Relations section of the Company’s website at www.continental-bp.com. To participate in the call, please dial 877-407-3982 (domestic) or 201-493-6780 (international). A replay of the conference call will be available through March 22, 2016, by dialing 877-870-5176 (domestic) or 858-384-5517 (international) and entering the pass code 13628468.

About Continental Building Products

Continental Building Products is a leading North American manufacturer of gypsum wallboard and complementary finishing products. The Company is headquartered in Herndon, Virginia with operations serving the residential, commercial and repair and remodel construction markets primarily in the eastern United States and eastern Canada. For additional information, visit www.continental-bp.com.

Forward-Looking Statements

This press release contains forward-looking statements. Forward-looking statements may be identified by the use of words such as “anticipate”, “believe”, “expect”, “estimate”, “plan”, “outlook”, and “project” and other similar expressions that predict or indicate future events or trends or that are not statements of historical matters. Forward-looking statements should not be read as a guarantee of future performance or results, and will not necessarily be

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accurate indications of the times at, or by, which such performance or results will be achieved. Forward-looking statements are based on historical information available at the time the statements are made and are based on management’s reasonable belief or expectations with respect to future events, and are subject to risks and uncertainties, many of which are beyond the Company’s control, that could cause actual performance or results to differ materially from the belief or expectations expressed in or suggested by the forward-looking statements. Forward-looking statements speak only as of the date on which they are made and the Company undertakes no obligation to update any forward-looking statement to reflect future events, developments or otherwise, except as may be required by applicable law. Investors are referred to the Company’s filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K and its Quarterly Reports on Form 10-Q for additional information regarding the risks and uncertainties that may cause actual results to differ materially from those expressed in any forward-looking statement.

Contact Information:

Investor Relations:

Tel.: 703-480-3980

Investorrelations@continental-bp.com

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Continental Building Products, Inc.

Consolidated Statements of Operations

(dollars in thousands, except per share, mill net and volume data)

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Continental Building Products, Inc.

Consolidated Balance Sheets

(dollars in thousands, except share data)

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Continental Building Products, Inc.

Consolidated Statements of Cash Flows

(dollars in thousands)

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Reconciliation of GAAP Measures to Non-GAAP Measures

EBITDA, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Net Income, and Adjusted Earnings Per Share have been presented in this press release as supplemental measures of financial performance that are not required by, or presented in accordance with, Generally Accepted Accounting Principles (GAAP). This release presents EBITDA, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Net Income, and Adjusted Earnings Per Share, as supplemental performance measures because management believes that they facilitate a comparative assessment of the Company’s operating performance relative to its performance based on results under GAAP while isolating the effects of some items that vary from period to period without any correlation to core operating performance and eliminate certain charges that management believes do not reflect the Company’s operations and underlying operational performance. Management also believes that EBITDA, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Net Income, and Adjusted Earnings Per Share are useful to investors because they allow investors to view the business through the eyes of management and the Board of Directors, facilitating comparison of results across historical periods.

EBITDA, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Net Income, and Adjusted Earnings Per Share may not be comparable to similarly titled measures of other companies because other companies may not calculate EBITDA, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Net Income, and Adjusted Earnings Per Share in the same manner. EBITDA, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Net Income, and Adjusted Earnings Per Share are not measurements of the Company’s financial performance under GAAP and should not be considered in isolation or as alternatives to net income or earnings per share determined in accordance with GAAP or any other financial statement data presented as indicators of financial performance or liquidity, each as calculated and presented in accordance with GAAP.

The following is a reconciliation of net income to EBITDA, Adjusted EBITDA and Adjusted EBITDA margin:

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The following is a reconciliation of net income to Adjusted Net Income and earnings per share to Adjusted Earnings per Share:

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Interim Volumes and Mill Net Prices (Unaudited)

Interim Volumes and Mill Net Prices

(unaudited)

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