UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM SD

Specialized Disclosure Report

SPX Corporation

(Exact name of registrant as specified in its charter)

John W. Nurkin (980) 474-3804

(Name and telephone number, including area code, of the person to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

x Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2015.

Section 1 — Conflict Minerals Disclosure

Item 1.01    Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

SPX Corporation (“SPX” or the “Company”) is filing this Form SD pursuant to Rule 13p-1 under the Securities Exchange Act of 1934, as amended, for the reporting period from January 1, 2015 to December 31, 2015 (the “Reporting Period”).

Under Securities and Exchange Commission (“SEC”) regulations, if any “conflict minerals” (as defined below) are necessary to the functionality or production of a product manufactured by the Company or contracted by the Company to be manufactured, the Company must conduct in good faith a reasonable country of origin inquiry (“RCOI”) regarding those “conflict minerals” that is reasonably designed to determine whether any of the “conflict minerals” originated in the Covered Countries (as defined below) or are from recycled or scrap sources.  Form SD defines “conflict minerals” as (i) columbite-tantalite (coltan), cassiterite, gold, wolframite, and their derivatives, which are currently limited to tantalum, tin, and tungsten; or (ii) any other mineral or its derivatives determined by the U.S. Secretary of State to be financing conflict in the Democratic Republic of the Congo or an “adjoining country,” as such term is defined in Form SD, (collectively, the “Covered Countries”).

The Company’s operations may at times manufacture, or contract to manufacture, products for which conflict minerals are necessary to the functionality or production of those products.  As required by SEC’s conflict minerals rule, the Company has conducted a good faith RCOI regarding conflict minerals included in the Company’s products during the Reporting Period to determine whether any such conflict minerals originated in the Covered Countries and/or whether any of the conflict minerals were from recycled or scrap sources.  Where applicable, the Company has conducted additional due diligence within the meaning of the SEC’s conflict minerals rule.  The results of SPX’s RCOI, as well as the Company’s additional due diligence regarding the sources of conflict minerals, are contained in the Company’s Conflict Minerals Report, filed herewith as Exhibit 1.01, and publically available on the Company’s website at www.spx.com.  The content on, or accessible through, our website or any web site referred to in this Form SD is not, and shall not be deemed to be, part of this Form SD or incorporated into this or any other filings SPX makes with the SEC unless expressly noted.

Item 1.02    Exhibit

As specified in Section 2 of Form SD, the Company is hereby filing its Conflict Minerals Report as Exhibit 1.01 to this Form SD.

Section 2 — Exhibits

Item 2.01    Exhibits

The following exhibit is filed as part of this Form SD.

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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 duly authorized undersigned.

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EXHIBIT INDEX

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Exhibit 1.01

SPX Corporation

Conflict Minerals Report

Reporting Period: January 1, 2015 — December 31, 2015

This Conflict Minerals Report (this “Report”) of SPX Corporation (“SPX,” “Company,” “we,” “us,” or “our”) for the reporting period from January 1, 2015 to December 31, 2015 (the “Reporting Period”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934, as amended.

Forward-looking statements contained in this Report are made based on events and circumstances known by us at the time of release and, as such, are inherently subject to unforeseen uncertainties and risks.  Statements in this Report which express a belief, expectation, or intention, as well as those that are not historical fact, are forward-looking statements, including statements related to the Company’s business, products, compliance efforts, and expected actions identified in this Report.  These forward-looking statements are subject to various risks, uncertainties, and assumptions, including, among other matters, our customers’ requirements to use certain suppliers, our suppliers’ responsiveness and cooperation with our due diligence efforts, our ability to implement improvements in our conflict minerals program, changes to the sourcing status of smelters and refiners in our supply chain, and our ability to identify and mitigate related risks in our supply chain.  If one or more of these or other risks materialize, actual results may vary materially from those expressed.  For a more complete discussion of these and other risk factors, see our other filings with the Securities and Exchange Commission (“SEC”), including our Annual Report on Form 10-K for the year ended December 31, 2015.  The Company makes these statements as of the date of this disclosure, and undertakes no obligation to update them unless otherwise required by law.

Under SEC regulations, if any “conflict minerals” (as defined below) are necessary to the functionality or production of a product manufactured by the Company or contracted by the Company to be manufactured, the Company must conduct in good faith a reasonable country of origin inquiry (“RCOI”) regarding those “conflict minerals” that is reasonably designed to determine whether any of the “conflict minerals” originated in the Covered Countries (as defined below) or are from recycled or scrap sources.  Form SD defines “conflict minerals” as (i) columbite-tantalite (coltan), cassiterite, gold, wolframite, and their derivatives, which are currently limited to tantalum, tin, and tungsten; or (ii) any other mineral or its derivatives determined by the U.S. Secretary of State to be financing conflict in the Democratic Republic of the Congo or an “adjoining country,” as such term is defined in Form SD, (collectively, the “Covered Countries”).

The Company’s operations may at times manufacture, or contract to manufacture, products for which conflict minerals are necessary to the functionality or production of those products.  As required by SEC’s conflict minerals rule, the Company has conducted a good faith RCOI regarding conflict minerals included in the Company’s products during the Reporting Period to determine whether any such conflict minerals originated in the Covered Countries and/or whether any of the conflict minerals were from recycled or scrap sources.  Where applicable, the Company has conducted additional due diligence within the meaning of the SEC’s conflict minerals rule.  The results of SPX’s RCOI, as well as the Company’s additional due diligence regarding the sources of conflict minerals, are contained in this Report.

This Report is publically available on our website at www.spx.com.  The content on, or accessible through, our website or any web site referred to in this Report is not, and shall not be deemed to be, part of this Report or incorporated into this or any other filings SPX makes with the SEC unless expressly noted.

Company Overview and Product Description

Based in Charlotte, North Carolina, SPX Corporation is a leading supplier of highly engineered HVAC products, detection and measurement technologies, and power equipment.  With operations in about 20 countries, SPX had approximately $1.7 billion in annual revenue in 2015 and approximately 6,000 employees worldwide.

The Company’s operations may at times manufacture, or contract to manufacture, products for which conflict minerals are necessary to the functionality or production of those products (collectively, the “products”).  Certain of

the products contain materials or components that use metallic forms of tin, tantalum, tungsten and/or gold (“3TG”).  For the Reporting Period, the Company reasonably determined that the following product groups contain 3TG:

·                  Dry cooling systems;

·                  Evaporative and hybrid cooling systems;

·                  Rotating and stationary heat exchangers; pollution control systems;

·                  Boilers;

·                  Heating and ventilation products;

·                  Power transformers;

·                  Industrial tools and hydraulic units;

·                  Spectrum monitoring and signal monitoring systems;

·                  Fare collection systems; and

·                  Portable cable and pipe locators.

The due diligence efforts noted below were undertaken on the products manufactured by us in the Reporting Period.

Reasonable Country of Origin Inquiry

SPX conducted a good faith RCOI regarding the potential inclusion of conflict minerals in the products during the Reporting Period.  There is significant overlap between the Company’s RCOI efforts and the due diligence measures performed.  Although some of our products contain 3TG, we typically do not purchase raw materials directly from mines, smelters, or refiners and we are many steps removed in the supply chain from the sources of ore from which these metals are produced and the smelters/refiners that process those ores.  Accordingly, we rely on suppliers in the supply chain between us and the original sources of raw materials to provide information regarding the origin of any conflict minerals that may be included in the products.

We have taken steps to identify the applicable smelters and refiners of such 3TG metals in our supply chain.  However, as a downstream purchaser of components and materials that contain 3TG, our RCOI and due diligence measures can provide only reasonable - not absolute - assurance regarding the source and chain of custody of the conflict minerals.  The Company’s RCOI and due diligence processes are based on the necessity of seeking data from direct suppliers and those suppliers seeking similar information within their supply chains to identify the original sources of the conflict minerals contained in components and materials supplied to us.  Another complicating factor is the unavailability of country of origin and chain of custody information from direct suppliers on a continuous, real-time basis.  The Company’s available sources of information may yield inaccurate or incomplete information and may be subject to fraud.

The Company began its RCOI by identifying product families and commodities that may contain conflict minerals.  Using information derived from the Company’s procurement systems, supplemented by information supplied by personnel in the Company’s business units supply chain, SPX identified direct suppliers of components and materials that may contain conflict minerals.  We requested that each of these identified direct suppliers complete a survey utilizing the Electronic Industry Citizenship Coalition-Global e-Sustainability Initiative (EICC-GeSI) Conflict Minerals Common Reporting Template.  This survey, among other things, solicited information regarding the location and identity of smelters and refiners.  We utilized a database to track survey progress and responses, and from the database we were able to identify direct suppliers that failed to provide the requested information and redistributed surveys to those who did not respond.  In addition, we collaborated with our direct suppliers to review responses to the surveys when clarification was warranted.

Using the information collected from the EICC-GeSI surveys completed by these direct suppliers, we determined the products that contained one or more of the conflict minerals.  Upon conclusion of the RCOI, the origin of these conflict minerals could not be definitively determined.  As such, we proceeded to exercise due diligence.

Due Diligence Framework and Measures

We designed our due diligence framework to conform to applicable portions of the OECD 2013 Guidelines — OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas: Second Edition, OECD Publishing. http://dx.doi.org/10.1787/9789264185050-en (“OECD Guidelines”).

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In accordance with applicable portions of the OECD Guidance for downstream companies such as the Company, the due diligence measures we performed include, but are not limited to, the following:

·                  Reporting to senior management and the Board of Directors regarding the structure of our conflict minerals program.

·                  Reporting to senior management on direct suppliers’ responses to our conflict minerals information requests.

·                  Communicating our policy on conflict minerals to direct suppliers.

·                  Communicating the commitments and requirements expected of our direct suppliers, supported by, when appropriate, email and phone dialogues.

·                  Comparing smelters and refiners identified by suppliers to the Conflict Free Sourcing Initiative (“CFSI”) lists of validated conflict free and verified facilities and the U.S. Department of Commerce “Reporting Requirements Under Section 1502(d)(3)(C) of the Dodd-Frank Act World-Wide Conflict Mineral Processing Facilities” (http://www.ita.doc.gov/td/forestprod/DOC-ConflictMineralReport.pdf), and our own independent research.

·                  Developing a risk mitigation plan that allows for continued trade with a supplier as appropriate through the supplier’s risk mitigation efforts, and evaluating the business relationship with suppliers that do not address the risks.

·                  Developing contractual terms and conditions regarding procurement practices that encourage suppliers to purchase raw materials from smelters/refiners which have achieved a conflict free designation by the CFSI’s Conflict-Free Smelter Program (“CFSP”) or have an audit program with which CFSI has mutual recognition.

Due Diligence Results

We utilized the Conflict Minerals Reporting Template included in the CFSI to solicit our relevant direct suppliers to gather detailed information regarding the existence of 3TG in materials or components sold to us, as well as the origin and chain of custody of the 3TG.  To date we have received no information from such direct suppliers indicating that 3TG in our supply chain directly or indirectly financed or benefitted armed groups in the Covered Countries; even so, based on the information provided by these suppliers and our own due diligence efforts for the Reporting Period, we do not have sufficient information to conclusively determine the countries of origin or chain of custody of 3TG in the products.  Some suppliers disclosed to us that scrap/recycled sources of 3TG were identified in their supply chains and did not require due diligence.

Based on the information provided by these suppliers and information available from CFSI, SPX believes the smelters and refiners and the countries of origin of 3TG processed by these smelters and refiners that may have been used to produce 3TG used in the products include those listed on Annex A.

Additional Due Diligence and Risk Mitigation

SPX intends to continue to evaluate its due diligence program, and, in particular, intends to annually review the criteria used to select suppliers for solicitation.  We expect to continue to engage with our direct suppliers so that they more closely comply with SPX’s conflict minerals policy and are able to track the sourcing of conflict minerals with greater precision.  To that end, the Company expects to continue outreach efforts among the direct supplier base, particularly with respect to direct suppliers that have not previously conducted business with the Company and with respect to direct suppliers that are unable to provide greater transparency as to their own sourcing practices.

Independent Audit Report

Consistent with Rule 13p-1 and the SEC’s April 29, 2014 statement relating to Rule 13p-1(1), this Report is not required to be accompanied by an independent private sector audit.

(1)  Statement on the Effect of the Recent Court of Appeals Decision on the Conflict Minerals Rule, Keith F. Higgins, Director, SEC Division of Corporation Finance, April 29, 2014.

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Annex A

The information in this table has been gathered and transmitted through multiple levels of our supply chain, and there is a risk that it is not accurate or current.  In most cases, direct suppliers provided smelter and/or refiner information for their entire supply chain without identifying which smelters and/or refiners may have contributed conflict minerals to components and materials actually supplied to us.  Accordingly, we cannot verify that any of the smelters and/or refiners shown in this table actually were part of our supply chain.  The presence of a smelter or refiner in this table does not necessarily mean that conflict minerals processed at that smelter or refiner were used in any components and materials supplied to us or in any SPX Corporation products.

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