UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 14, 2013 (February 12, 2013)

AXIALL CORPORATION

(Exact name of registrant as specified in its charter)

Delaware |  | 1-09753 |  | 58-1563799
(State or other jurisdiction of incorporation) |  | (Commission File Number) |  | (IRS Employer Identification No.)

115 Perimeter Center Place, Suite 460, Atlanta, GA |  | 30346
(Address of principal executive offices) |  | (Zip Code)

Registrant’s telephone number, including area code: (770) 395 - 4500

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2 (b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4 (c))

Item 2.02 Results of Operations and Financial Condition.

On February 12, 2013, Axiall Corporation issued a press release announcing financial results for the fourth quarter of, and full year 2012, and other matters described in the press release. A copy of the press release, earnings call transcript, and presentation slides issued by the Company concerning the foregoing results are furnished herewith as Exhibits 99.1, 99.2 and 99.3, respectively, and are incorporated by reference.

Item 7.01 Regulation FD Disclosure.

The information set forth in item 2.02 above is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Number |  | Exhibit
99.1 |  | Press Release, dated February 12, 2013
99.2 |  | Transcript for Earnings Call Held on February 13, 2013
99.3 |  | 4th Quarter 2012 Earnings Presentation, dated February 13, 2013

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

| AXIALL CORPORATION
| By: | /s/ Gregory C. Thompson
| Name: Gregory C. Thompson
| Title: Chief Financial Officer
Date: February 14, 2013 |

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