Exhibit 99.1

On October 2, 2018, Resolute FP US Inc. (the “Seller”), a wholly owned subsidiary of Resolute Forest Products Inc. (the “Company”), entered into an Asset Purchase Agreement (the “Purchase Agreement”) with New-Indy Containerboard LLC (the “Parent”) and New-Indy Catawba LLC (the “Purchaser”), to sell the Company’s Catawba, South Carolina paper and pulp mill (the “Business”) to the Purchaser. We determined that the Business met the held for sale criteria, as prescribed by FASB ASC 360-10- 45-9, but did not meet the criteria to qualify as a discontinued operation. As such, the assets and liabilities of the paper and pulp mill were presented as “Assets held for sale” and “Liabilities held for sale” in our condensed consolidated balance sheet as of September 30, 2018, as filed within the Form 10-Q filed with the SEC on November 9, 2018.

On December 31, 2018, we completed the sale for a total consideration of $260 million in cash, subject to customary closing adjustments and the assumption of approximately $40 million of liabilities, largely net pension benefit obligations. The sale constituted a significant disposition for purposes of Item 2.01 of Form 8-K. As a result, the Company prepared the accompanying unaudited pro forma condensed consolidated financial statements in accordance with Article 11 of Regulation S-X.

The accompanying unaudited pro forma condensed consolidated balance sheet as of September 30, 2018, gives effect to the sale as if the transaction occurred on September 30, 2018. The accompanying unaudited condensed consolidated statements of income for year ended December 31, 2017 and for the nine months ended September 30, 2018, give effect to the sale as if the transaction had occurred on December 31, 2016. The pro forma adjustments are described in the accompanying notes and are based upon information and assumptions available at the time of the filing of this report on Form 8-K.

The unaudited pro forma financial information is based on financial statements prepared in accordance with U.S. generally accepted accounting principles, which are subject to change and interpretation. The unaudited pro forma condensed consolidated financial statements were based on and derived from our historical consolidated financial statements, adjusted for those amounts which were determined to be directly attributable to the sale, factually supportable, and with respect to the unaudited pro forma condensed consolidated statements of income, expected to have a continuing impact on our consolidated results. Actual adjustments, however, may differ materially from the information presented. Pro forma adjustments do not include allocations of corporate costs, as those are not directly attributable to the sale. In addition, the unaudited pro forma financial information is based upon available information and assumptions that management considers to be reasonable, and such assumptions have been made solely for purposes of developing such unaudited pro forma financial information for illustrative purposes in compliance with the disclosure requirements of the SEC. The unaudited pro forma financial information is not necessarily indicative of what the financial position or income statement results would have actually been had the sale occurred on the dates indicated. In addition, these unaudited pro forma condensed consolidated financial statements should not be considered to be indicative of our future consolidated financial performance and income statement results. The unaudited pro forma condensed combined financial statements have been developed from and should be read in conjunction with the Company’s historical audited consolidated financial statements and accompanying notes contained in the Company’s Annual Report on Form 10-K for its fiscal year ended December 31, 2017, and Quarterly Report on Form 10-Q as of and for the nine months ended September 30, 2018.

RESOLUTE FOREST PRODUCTS INC.

PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET

(Unaudited)

(in millions of U.S. dollars)

See the accompanying Notes to the Unaudited Pro Forma Condensed Consolidated Financial Statements.

RESOLUTE FOREST PRODUCTS INC.

PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

(Unaudited)

(in millions of U.S. dollars, except per share amounts)

See the accompanying Notes to the Unaudited Pro Forma Condensed Consolidated Financial Statements.

RESOLUTE FOREST PRODUCTS INC.

PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

(Unaudited)

(in millions of U.S. dollars, except per share amounts)

See the accompanying Notes to the Unaudited Pro Forma Condensed Consolidated Financial Statements.

Notes to the Unaudited Pro Forma Condensed Consolidated Financial Statements

(Unaudited)

1. Pro Forma Adjustments

The following is a summary of the pro forma adjustments reflected in the unaudited pro forma condensed consolidated financial statements based on preliminary estimates, which may change as additional information is obtained:

(a) Reflects the Company’s condensed consolidated balance sheet and statement of income as of and for the nine months ended September 30, 2018, as contained in the financial statements presented in the Company’s Quarterly Report on Form 10-Q, as filed with the SEC on November 9, 2018.

(b) Reflects the Company’s consolidated statement of income for the year ended December 31, 2017, restated following the adoption of ASU 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost”.

In March 2017, the FASB issued ASU 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” which requires employers that present a measure of operating income in their statements of earnings to disaggregate and present only the service cost component of net periodic pension cost and net periodic OPEB cost in operating expenses (together with other employee compensation costs arising during the period). The other components of the net periodic pension cost and net periodic OPEB cost (or “Non-operating pension and OPEB costs”) are reported separately outside any subtotal of operating income. This update is effective retrospectively for fiscal years beginning after December 15, 2017. We adopted this ASU on January 1, 2018.

The effect of this ASU on our Consolidated Statements of Operations for the year ended December 31, 2017 was as follows:

(c) Represents the elimination of revenues and expenses associated with the sale of the Catawba paper and pulp mill for the nine months ended September 30, 2018 and for the year ended December 31, 2017.

(d) Represents the elimination of the assets and liabilities associated with the sale of the Catawba paper and pulp mill as of September 30, 2018.

(e) Represents the estimated cash received by the Seller, net of closing costs and working capital adjustments.

(f) Represents the estimated gain on sale, net of closing costs and working capital adjustments. As the gain is directly attributable to the sale and is not expected to have a continuing impact on the Company’s operations, it is only reflected in retained earnings on the unaudited pro forma condensed consolidated balance sheet.