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): September 10, 2010

ATC Technology Corporation

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (630) 271-8100

(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:

On September 10, 2010, ATC Technology Corporation (“ATC”) announced the date of the special meeting for ATC’s stockholders to vote on GENCO Distribution System Inc.’s proposed merger with ATC.

A copy of the press release is being furnished pursuant to Item 8.01 of Form 8-K and is incorporated herein by reference.

FORWARD-LOOKING STATEMENTS

This document and the exhibit attached herewith contain various “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 regarding the proposed acquisition of ATC by GENCO and the risks and uncertainties related to the occurrence of future events. These forward-looking statements are based on management’s current expectations, assumptions, estimates and projections about the current economic environment, ATC and its industry. Certain factors that could cause actual events not to occur as expressed in the forward-looking statements include, but are not limited to, (i) the failure to obtain the necessary approval by ATC’s stockholders, (ii) the failure, under certain circumstances, of GENCO to meet the conditions set forth in its equity and debt financing documents and (iii) the satisfaction of various other closing conditions contained in the definitive merger agreement. Other potential risks and uncertainties are discussed in ATC’s reports and other documents filed with the SEC from time to time. ATC assumes no obligation to update the forward-looking information. Such forward-looking statements are based upon many estimates and assumptions and are inherently subject to significant economic and competitive uncertainties and contingencies, many of which are beyond the control of ATC’s management. Inclusion of such forward-looking statements herein should not be regarded as a representation by ATC that the statements will prove to be correct.

ADDITIONAL INFORMATION AND WHERE TO FIND IT

In connection with the proposed acquisition by GENCO, ATC has filed a preliminary proxy statement and other relevant documents concerning the transaction with the SEC. STOCKHOLDERS OF ATC ARE URGED TO READ THE PROXY STATEMENT AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT THE TRANSACTION.

Investors and security holders can obtain free copies of the proxy statement and other documents filed with the SEC by ATC through the web site maintained by the SEC at www.sec.gov. Free copies of the proxy statement and ATC’s other filings with the SEC also may be obtained from ATC. Free copies of ATC’s filings may be obtained by directing a request to the Investor Relations Department at ATC’s website at www.goatc.com.

ATC and its directors and executive officers may be deemed to be participants in the solicitation of proxies from ATC’s stockholders with respect to the transactions contemplated by the definitive agreement between GENCO and ATC. Information regarding ATC’s directors and executive officers is contained in ATC’s Annual Report on Form 10-K for the year ended December 31, 2009 and its definitive proxy statement filed with the SEC on April 28, 2010, as amended, for its 2010 Annual Meeting of Stockholders, which are filed with the SEC. You can obtain free copies of these documents from ATC using the contact information set forth above. Additional information regarding interests of such participants is included in the proxy statement filed with the SEC on August 23, 2010 and available free of charge as indicated above.

(d) Exhibits

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, thereunto duly authorized.

EXHIBIT INDEX