McDermott International, Inc. Conflict Minerals Policy

On August 22, 2012, the final rule regarding sourcing of conflict minerals under Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act was approved by the U.S. Securities and Exchange Commission (“SEC”). The rule imposes annual disclosure requirements on SEC reporting companies, such as McDermott, with respect to conflict minerals originating in the Democratic Republic of the Congo or adjoining countries in the products they manufacture or contract to manufacture when those conflict minerals are necessary to the functionality or production of a product.

Conflict minerals, which are defined to include columbite-tantalite, cassiterite, gold, wolframite or their derivatives (which are limited to tin, tantalum and tungsten) are relied on by many industries for components of their products. As a leading engineering, procurement, construction and installation company focused on executing complex offshore oil and gas projects worldwide, McDermott manufactures products that include component parts that may contain these minerals. Due to the enormity and complexity of the supply chain, McDermott has limited visibility into the sourcing of these materials. However, McDermott seeks to source materials from environmentally and socially
responsible suppliers, and generally, it is McDermott’s goal not to purchase these minerals from known conflict sources. Because McDermott is committed to sourcing components and materials from companies that share McDermott’s values around ethics and environmental responsibility, McDermott expects our customers and suppliers to abide by the same standard.

McDermott is committed to taking necessary steps to comply with the SEC’s final rule regarding sourcing of conflict minerals and has conducted inquiries as required by the new rule. Additionally, McDermott has surveyed customers and suppliers to better understand what policies or programs they have in place relating to conflict minerals and the sourcing of conflict minerals used in their products. Due to the enormity of McDermott’s and its customers’ and suppliers’ respective supply chains, it will take time to verify the origin of conflict minerals used in components and materials. McDermott,
however, supports efforts to reach the common goal of ensuring a socially and environmentally responsible supply chain.

Section 1 – Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

A copy of this Form SD and the Conflict Minerals Report, filed as Exhibit 1.01 hereto, are publicly available on our Web site at: http://www.mcdermott.com/wp-content/uploads/2015/07/McDermott-Conflict-Minerals-Policy-and-Form-SD-and-CMR-FINAL.pdf

Item 1.02 Exhibit.
We have included the Conflict Minerals Report as Exhibit 1.01 to this Form SD.

Section 2 – Exhibits
Item 2.01 Exhibits
Exhibit 1.01 – Conflict Minerals Report.

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.

McDermott International, Inc.

By: /s/ Liane K. Hinrichs

Liane K. Hinrichs

Senior Vice President, General Counsel

and Corporate Secretary

Date: May 31, 2016

EXHIBIT INDEX

Exhibit 1.01 – Conflict Minerals Report

McDermott International, Inc.

Conflict Minerals Report

For the reporting period from January 1, 2015 to December 31, 2015

1. Introduction

This Conflict Minerals Report (this “Report”) of McDermott International, Inc. (together with its consolidated subsidiaries, “McDermott,” “we” or “us”) has been prepared pursuant to Rule 13p-1 promulgated by the U.S. Securities and Exchange Commission (the “SEC”) under the Securities Exchange Act of 1934, as amended (together with Form SD adopted by the SEC pursuant to its Release No. 34-67716, the “Conflict Minerals Rule”), for the reporting period January 1, 2015 to December 31, 2015 (the “Reporting Period”). The Conflict Minerals Rule addresses disclosure of certain information when an SEC registrant manufactures or contracts to manufacture products and any one or more of the minerals specified in the Conflict Minerals Rule are necessary to the functionality or production of those products. The specified minerals are gold, as well as columbite-tantalite (coltan), cassiterite and wolframite and their respective derivatives tantalum, tin and tungsten (collectively, the “Covered Minerals”). The “Covered Countries” for the purposes of the Conflict Minerals Rule are the Democratic Republic of the Congo, the Republic of the Congo, the Central African Republic, South Sudan, Uganda, Rwanda, Burundi, Tanzania, Zambia and Angola. During the Reporting Period, we manufactured, or contracted to manufacture, Projects (as described below) for customers and for which Covered Minerals were or may have been necessary to their functionality or production.

2. Company Overview

McDermott is a leading provider of integrated engineering, procurement, construction and installation (“EPCI”) and module fabrication services for upstream field developments worldwide. Providing fully integrated EPCI services, we deliver fixed and floating production facilities, pipeline installations and subsea systems from concept to commissioning. Operating in approximately
20 countries across the Americas, Europe, Africa, the Middle East and Asia, our integrated resources include approximately 11,200 employees and a diversified fleet of marine vessels, fabrication facilities and engineering offices.

3. Description of the Projects Covered by this Report

This Report relates to projects: (i) for which Covered Minerals were or may be necessary to the functionality or production; (ii) that were manufactured, or contracted to be manufactured, for customers by McDermott; and (iii) for which the manufacture was completed during the Reporting Period. Those projects (“Projects”) include the following:
• offshore oil and gas platforms, including piles, modules, living quarters, wellhead decks, production decks, deck upgrades and jackets;
• subsea installations, including modules, support frames, pipeline end terminals (PLETs) and pipeline end manifolds (PLEMs); and
• subsea pipelines, including reeled and traditional layed in various diameters, lengths, materials, insulations and coatings.

4. Reasonable Country of Origin Inquiry and Due Diligence

Reasonable Country of Origin Inquiry

We conducted, in good faith, a reasonable country of origin inquiry (“RCOI”) that we believe was reasonably designed to determine whether any of the Covered Minerals that were necessary to the functionality or production of the Projects originated in any of the Covered Countries and whether any of such Covered Minerals may have been from recycled or scrap sources.

We commenced our RCOI process by determining, based on an annual review and analysis of our supplier base, specific suppliers that might have provided materials or components containing Covered Minerals necessary to the functionality or production of the Projects (the “In-scope Suppliers”). The In-scope Suppliers were requested to provide information regarding the presence and sourcing of Covered Minerals used in the materials supplied to McDermott. Information was collected and stored using an online platform provided by a third-party vendor, Source Intelligence. This supplier engagement consisted of the following steps:

• an introductory communication was issued by McDermott to the In-scope Suppliers describing the compliance requirements, introducing them to Source Intelligence and requesting their cooperation in providing the requested information;
• thereafter, Source Intelligence issued a communication to the In-scope Suppliers, providing further information on the compliance requirements and information on how to access the online platform and requesting completion of the Conflict-Free Sourcing Initiative’s Conflict Minerals Reporting Template (the “CMR Template”);
• following Source Intelligence’s initial communication, up to five reminder emails were issued to each non-responsive Inscope Supplier, further requesting completion of the CMR Template;
• In-scope Suppliers who remained non-responsive were reached out to by Source Intelligence via telephone and offered additional assistance, including but not limited to, further information about the Conflict Minerals Rule, an explanation of why the information was being collected, a review of how the information would be used and clarification regarding how the information needed could be provided; and
• if, after these efforts, a given In-scope Supplier still remained non-responsive, an escalation process was initiated, which consisted of direct outreach by McDermott to such In-Scope Suppliers requesting their completion of the CMR Template with Source Intelligence following up in a timely manner.

Approximately 35% of the In-scope Suppliers responded to our requests. Of those responsive In-scope Suppliers, approximately 7% responded that Covered Minerals were contained within the products or materials they provided to McDermott. Based on the information we obtained in the RCOI process, we believe that certain of our Projects may contain Covered Minerals originating from
the Covered Countries. Accordingly, we undertook due diligence efforts to determine the source and chain of custody of such Covered Minerals.

Due Diligence Efforts

McDermott has exercised due diligence on the source and chain of custody of the Covered Minerals contained in our Projects. McDermott’s due diligence measures were designed based on the framework in the Organisation for Economic Co-operation and Development Due Diligence Guidance for Responsible Supply Chain of Minerals from Conflict-Affected and High Risk Areas:
Second Edition, including the related supplements on gold, tin, tantalum and tungsten.

McDermott’s due diligence measures included the following:
• Maintained a Conflict Minerals Policy, which is available on McDermott’s Web site at: http://www.mcdermott.com/wpcontent/uploads/2015/07/McDermott-Conflict-Minerals-Policy-and-Form-SD-and-CMR-FINAL.pdf
• Utilized an internal, cross-functional team to support supply chain due diligence.
• Undertook actions, including the engagement of a third-party vendor, Source Intelligence, to increase transparency over the supply chain.
• Applied internal measures to strengthen engagement with suppliers, including through contractual representations from suppliers that they do not procure Covered Minerals from the Covered Countries.
• Requested that suppliers complete a questionnaire on the CMR Template to identify Covered Minerals smelters or refiners and associated countries of origin.
• Identified smelters or refiners in the supply chain, to the extent practicable, based on information provided by suppliers.
• Evaluated supplier responses for plausibility and consistency, by cross-referencing against other supplier responses and publically available information concerning smelters or refiners identified.
• Reported findings of the RCOI and due diligence processes to senior management.

5. Determination

Many In-Scope Suppliers provided responses with smelter or refiner facilities information based on a company or divisional level, rather than a product-level specific to the materials and components we use. As such, and based on the limitations discussed above, McDermott does not have sufficient information to determine all of the facilities used to process Covered Minerals necessary to the
functionality or production of the Products or the countries of origin of those Covered Minerals.

Our efforts to determine the mine or location of origin of the necessary Conflict Minerals with the greatest possible specificity are set forth above under Due Diligence Efforts. Set forth below is information regarding the processing facilities and countries of origin that the Company has identified based on the information provided by our In-Scope Suppliers and our due diligence efforts.


Smelter List and Country of Origin List

Metal Smelter Name (* indicates CFSI Compliant Conflict-Free Smelter, ** indicates CFSI Active Smelter)

Gold Advanced Chemical Company **
Gold Aida Chemical Industries Co. Ltd.*
Gold Al Etihad Gold Refinery DMCC
Gold Allgemeine Gold-und Silberscheideanstalt A.G.*
Gold Almalyk Mining and Metallurgical Complex (AMMC)**
Gold AngloGold Ashanti Córrego do Sítio Minerção*
Gold Argor-Heraeus SA*
Gold Asahi Pretec Corp*
Gold Asaka Riken Co Ltd*
Gold Atasay Kuyumculuk Sanayi Ve Ticaret A.S.
Gold Aurubis AG*
Gold Bangko Sentral ng Pilipinas (Central Bank of the Philippines)*
Gold Boliden AB*
Gold C. Hafner GmbH + Co. KG*
Gold Caridad Gold CCR Refinery – Glencore Canada Corporation*
Gold Cendres + Métaux SA**
Gold Chimet S.p.A.*
Gold Chugai Mining
Gold Daejin Indus Co., Ltd.**
Gold Daye Non-Ferrous Metals Mining Ltd.
Gold Do Sung Corporation**
Gold Doduco*
Gold Dowa*
Gold Eco-System Recycling Co., Ltd.*
Gold Emirates Gold DMCC*
Gold Faggi Enrico S.p.A.**
Gold Fidelity Printers and Refiners Ltd.
Gold FSE Novosibirsk Refinery*
Gold Gansu Seemine Material Hi-Tech Co., Ltd.
Gold Geib Refining Corporation**
Gold Great Wall Precious Metals Co., Ltd. of CBPM
Gold Guangdong Jinding Gold Limited
Gold Guoda Safina High-Tech Environmental Refinery Co., Ltd.
Gold Hangzhou Fuchunjiang Smelting Co., Ltd.
Gold Heimerle + Meule GmbH*
Gold Heraeus Ltd. Hong Kong*
Gold Heraeus Precious Metals GmbH & Co. KG*
Gold Hunan Chenzhou Mining Group Co., Ltd.
Gold Hwasung CJ Co., Ltd.
Gold Inner Mongolia Qiankun Gold and Silver Refinery Share Company Limited*
Gold Ishifuku Metal Industry Co., Ltd.*
Gold Istanbul Gold Refinery*
Gold Japan Mint*
Gold Jiangxi Copper Company Limited*
Gold Johnson Matthey Inc*
Gold Johnson Matthey Ltd*
Gold JSC Ekaterinburg Non-Ferrous Metal Processing Plant*
Gold JSC Uralectromed*
Gold JX Nippon Mining & Metals Co., Ltd*
Gold Kaloti Precious Metals
Gold Kazakhmys Smelting LLC
Gold Kazzinc Ltd*
Gold Kennecott Utah Copper LLC*
Gold Gold Kojima Chemicals Co., Ltd*
Gold Korea Zinc Co. Ltd.**
Gold Kyrgyzaltyn JSC
Gold L' azurde Company For Jewelry
Gold Lingbao Gold Company Limited 
Gold Lingbao Jinyuan Tonghui Refinery Co., Ltd.
Gold LS-NIKKO Copper Inc.*
Gold Luoyang Zijin Yinhui Gold Refinery 
Co., Ltd. Gold Materion*
Gold Matsuda Sangyo Co., Ltd.*
Gold Met-Mex Peñoles, S.A.*
Gold Metalor Technologies (Hong Kong) Ltd*
Gold Metalor Technologies (Singapore) Pte. Ltd.*
Gold Metalor Technologies (Suzhou) Ltd.**
Gold Metalor Technologies SA*
Gold Metalor USA Refining Corporation*
Gold Mitsubishi Materials Corporation*
Gold Mitsui Mining and Smelting Co., Ltd.*
Gold MMTC-PAMP India Pvt., Ltd.*
Gold Morris and Watson
Gold Moscow Special Alloys Processing Plant*
Gold Gold Navoi Mining and Metallurgical Combinat**
Gold Nihon Material Co. LTD*
Gold Ögussa Österreichische Gold- und Silber-Scheideanstalt GmbH*
Gold Ohio Precious Metals, LLC*
Gold Ohura Precious Metal Industry Co., Ltd*
Gold OJSC “The Gulidov Krasnoyarsk Non-Ferrous Metals Plant” (OJSC Krastvetmet)*
Gold PAMP SA*
Gold Penglai Penggang Gold Industry Co., Ltd. 
Gold Prioksky Plant of Non-Ferrous Metals*
Gold PT Aneka Tambang (Persero) Tbk*
Gold PX Précinox SA*
Gold Rand Refinery (Pty) Ltd*
Gold Republic Metals Corporation*
Gold Royal Canadian Mint*
Gold Sabin Metal Corp.
Gold Samduck Precious Metals**
Gold SAMWON METALS Corp.
Gold SAXONIA Edelmetalle GmbH**
Gold Schone Edelmetaal*
Gold SEMPSA Joyería Platería SA*
Gold Shandong Tiancheng Biological Gold Industrial Co., Ltd.
Gold Shandong Zhaojin Gold & Silver Refinery Co. Ltd*
Gold Sichuan Tianze Precious Metals Co., Ltd.*
Gold Singway Technology Co., Ltd.*
Gold So Accurate Group, Inc.
Gold SOE Shyolkovsky Factory of Secondary Precious Metals*
Gold Solar Applied Materials Technology Corp.*
Gold Sumitomo Metal Mining Co., Ltd.*
Gold T.C.A S.p.A*
Gold Tanaka Kikinzoku Kogyo K.K.*
Gold The Refinery of Shandong Gold Mining Co. Ltd*
Gold Tokuriki Honten Co. Ltd*
Gold Tongling nonferrous Metals Group Co.,Ltd
Gold Torecom**
Gold Umicore Brasil Ltda*
Gold Umicore Precious Metals Thailand*
Gold Umicore SA Business Unit Precious Metals Refining*
Gold United Precious Metal Refining, Inc.*
Gold Valcambi SA*
Gold Western Australian Mint trading as The Perth Mint*
Gold WIELAND Edelmetalle GmbH**
Gold YAMAMOTO PRECIOUS METAL CO., LTD.*
Gold Yokohama Metal Co Ltd*
Gold Yunnan Copper Industry Co Ltd
Gold Zhongyuan Gold Smelter of Zhongjin Gold Corporation*
Gold Zijin Mining Group Co. Ltd*

Tantalum Changsha South
Tantalum Niobium Co., Ltd.*
Tantalum Conghua Tantalum and Niobium Smeltry*
Tantalum D Block Metals, LLC*
Tantalum Duoluoshan*
Tantalum Exotech Inc.*
Tantalum F&X Electro-Materials Ltd.*
Tantalum FIR Metals & Resource Ltd.*
Tantalum Global Advanced Metals Boyertown*
Tantalum Global Advanced Metals*
Tantalum Guangdong Zhiyuan New Material Co., Ltd.*
Tantalum H.C. Starck Co., Ltd.*
Tantalum H.C. Starck GmbH Goslar*
Tantalum H.C. Starck GmbH Laufenburg*
Tantalum H.C. Starck Hermsdorf GmbH*
Tantalum H.C. Starck Inc.*
Tantalum H.C. Starck Ltd.*
Tantalum H.C. Starck Smelting GmbH & Co.KG*
Tantalum Hengyang King Xing Lifeng New Materials Co., Ltd.*
Tantalum Hi-Temp* Tantalum Jiangxi Dinghai Tantalum & Niobium Co., Ltd.* Tantalum JiuJiang JinXin Nonferrous Metals Co., Ltd.*
Tantalum Jiujiang Tanbre Co., Ltd.*
Tantalum Jiujiang Zhongao Tantalum & Niobium Co., Ltd.*
Tantalum KEMET Blue Metals*
Tantalum Kemet Blue Powder*
Tantalum King-Tan Tantalum Industry Ltd* Tantalum LSM Brasil S.A.* Tantalum Metallurgical Products India (Pvt.) Ltd.*
Tantalum Mineração Taboca S.A.*
Tantalum Mitsui Mining & Smelting*
Tantalum Molycorp Silmet A.S.*
Tantalum Ningxia Orient Tantalum Industry Co., Ltd.*
Tantalum Plansee SE Liezen* Tantalum Plansee SE Reutte*
Tantalum QuantumClean* Tantalum Resind Indústria e Comércio Ltda.*
Tantalum RFH Tantalum Smeltry Co., Ltd* Tantalum Solikamsk Metal Works* Tantalum Taki Chemicals* Tantalum Telex*
Tantalum Tranzact, Inc.* Tantalum Ulba*
Tantalum XinXing HaoRong Electronic Material Co., Ltd.*
Tantalum Yichun Jin Yang Rare Metal Co., Ltd.*
Tantalum Zhuzhou Cement Carbide* Tin Alpha*

Tin An Vinh Joint Stock Mineral Processing Company**
Tin Chenzhou Yunxiang Mining Smelting Company LTD**
Tin China Tin Group Co., Ltd.*
Tin CNMC (Guangxi) PGMA Co. Ltd. Tin Cooper Santa*
Tin CV Ayi Jaya* Tin CV Gita Pesona* Tin CV JusTindo*
Tin CV Nurjanah*
Tin CV Serumpun Sebalai* Tin CV United Smelting*
Tin CV Venus Inti Perkasa* Tin Dowa*
Tin Electro-Mechanical Facility of the Cao Bang Minerals & Metallurgy Joint Stock Company**
Tin Elmet S.L.U. (Metallo Group)*
Tin EM Vinto*
Tin Estanho de Rondônia S.A.
Tin Fenix Metals*
Tin Gejiu Jin Ye Mineral Co., Ltd.**
Tin Gejiu Kai Meng Industry and Trade LLC**
Tin Gejiu Non-Ferrous Metal Processing Co. Ltd.*
Tin Gejiu Yunxin Nonferrous Electrolysis Co., Ltd.**
Tin Gejiu Zi-Li Tin Huichang Jinshunda Tin Co. Ltd
Tin Jiangxi Ketai Advanced Material Co., Ltd.*
Tin Jiangxi Nanshan Tin Linwu Xianggui Ore Smelting Co., Ltd.
Tin Magnu's Minerais Metais e Ligas LTDA*
Tin Malaysia Smelting Corporation (MSC)*
Tin Melt Metais e Ligas S/A*
Tin Metallic Resources Inc*
Tin METALLO-CHIMIQUE N.V. (MC)*
Tin Mineração Taboca S.A.* Tin Minsur*
Tin Mitsubishi Materials Corporation*
Tin Nghe Tinh Non-Ferrous Metals Joint Stock Company**
Tin O.M. Manufacturing (Thailand) Co., Ltd.*
Tin O.M. Manufacturing Philippines, Inc.*
Tin Operaciones Metalurgical S.A.*
Tin Phoenix Metal Ltd.**
Tin PT Artha Cipta Langgeng*
Tin PT ATD Makmur Mandiri Jaya*
Tin PT Babel Inti Perkasa*
Tin PT Bangka Prima Tin*
Tin PT Bangka Tin Industry*
Tin PT Belitung Industri Sejahtera*
Tin PT BilliTin Makmur Lestari*
Tin PT Bukit Timah*
Tin PT Cipta Persada Mulia*
Tin PT DS Jaya Abadi*
Tin PT DS Jaya Abadi**
Tin PT Eunindo Usaha Mandiri*
Tin PT Inti Stania Prima*
Tin PT Karimun Mining**
Tin PT Mitra Stania Prima*
Tin PT Panca Mega Persada*
Tin PT Prima Timah Utama*
Tin PT REFINED BANGKA TIN*
Tin PT Sariwiguna Binasentosa*
Tin PT Stanindo Inti Perkasa*
Tin PT Sukses Inti Makmur*
Tin PT Sumber Jaya Indah*
Tin PT Tambang Timah*
Tin PT Timah (Persero) Tbk Mentok*
Tin PT Tinindo Inter Nusa*
Tin PT Tirus Putra Mandiri Tin PT Tommy Utama*
Tin PT Wahana Perkit Jaya*
Tin Resind Indústria e Comércio Ltda.*
Tin Rui Da Hung* Tin Soft Metais, Ltda.* Tin Thaisarco*
Tin Tuyen Quang Non-Ferrous Metals Joint Stock Company**
Tin VQB Mineral and Trading Group JSC*
Tin White Solder Metalurgia e Mineração Ltda.*
Tin Yunnan Chengfeng Non-ferrous Metals Co.,Ltd.**
Tin Yunnan Tin Company, Ltd.* Tungsten A.L.M.T. Corp.*

Tungsten Asia Tungsten Products Vietnam Ltd.*
Tungsten Chenzhou Diamond Tungsten Products Co., Ltd.*
Tungsten Chongyi Zhangyuan Tungsten Co Ltd*
Tungsten Dayu Jincheng Tungsten Industry Co., Ltd.
Tungsten Dayu Weiliang Tungsten Co., Ltd.
Tungsten Fujian Jinxin Tungsten Co., Ltd.*
Tungsten Ganxian Shirui New Material Co., Ltd.
Tungsten Ganzhou Huaxing Tungsten Products Co., Ltd.*
Tungsten Ganzhou Jiangwu Ferrotungsten Co., Ltd.*
Tungsten Ganzhou Non-ferrous Metals Smelting Co., Ltd.
Tungsten Ganzhou Non-ferrous Metals Smelting Co., Ltd.**
Tungsten Ganzhou Seadragon W & Mo Co., Ltd.*
Tungsten Ganzhou Yatai Tungsten Co., Ltd.*
Tungsten Global Tungsten & Powders Corp.*
Tungsten Guangdong Xianglu Tungsten Co., Ltd.*
Tungsten H.C. Starck GmbH*
Tungsten H.C. Starck Smelting GmbH & Co.KG*
Tungsten Hunan Chenzhou Mining Group Co., Ltd.*
Tungsten Hunan Chuangda Vanadium Tungsten Co., Ltd. Wuji*
Tungsten Hunan Chun-Chang Nonferrous Smelting & Concentrating Co., Ltd.* Tungsten Hydrometallurg, JSC*
Tungsten Japan New Metals Co Ltd*
Tungsten Jiangwu H.C. Starck Tungsten Products Co., Ltd.**
Tungsten Jiangxi Gan Bei Tungsten Co., Ltd.*
Tungsten Jiangxi Minmetals Gao'an Non-ferrous Metals Co., Ltd.
Tungsten Jiangxi Xinsheng Tungsten Industry Co., Ltd.**
Tungsten Jiangxi Xiushui Xianggan Nonferrous Metals Co., Ltd.*
Tungsten Jiangxi Yaosheng Tungsten Co., Ltd.**
Tungsten Kennametal Fallon**
Tungsten Kennametal Huntsville*
Tungsten Malipo Haiyu Tungsten Co., Ltd.*
Tungsten Niagara Refining LLC*
Tungsten Nui Phao H.C. Starck
Tungsten Chemicals Manufacturing LLC*
Tungsten Tejing (Vietnam) Tungsten Co., Ltd.*
Tungsten Vietnam Youngsun
Tungsten Industry Co., Ltd*
Tungsten Wolfram Bergbau und Hütten AG*
Tungsten Wolfram Company CJSC Tungsten Xiamen Tungsten (H.C.) Co., Ltd.* Tungsten Xiamen Tungsten Co., Ltd*
Tungsten Xinhai Rendan Shaoguan Tungsten Co., Ltd.*

Country of Origin List 3
Angola France Portugal Argentina Germany Republic of Congo Australia Guyana Russia Austria Hungary Rwanda Belgium India Sierra Leone Bolivia Indonesia Singapore Brazil Ireland Slovakia Burundi Israel South Africa Cambodia Japan South Korea Canada Kazakhstan South Sudan Central African Republic Kenya Spain Chile Laos Suriname China Luxembourg Switzerland Colombia Madagascar Taiwan Côte D'Ivoire Malaysia Tanzania Czech Republic Mongolia Thailand Democratic Republic of Congo Mozambique Uganda Djibouti Myanmar United Kingdom Ecuador Namibia United States of America Egypt Netherlands Vietnam Estonia Nigeria Zambia Ethiopia Peru Zimbabwe


6. Steps to Mitigate Risks Relating to Covered Minerals

McDermott intends to continue improving its supply chain due diligence efforts via the following measures, in an effort to mitigate the risk that any Covered Minerals necessary to the functionality or production of products manufactured, or contracted to be manufactured, for customers by McDermott benefit armed groups in any of the Covered Countries:
• Continue to assess the presence of Covered Minerals in its supply chain.
• Continue to communicate expectations with regard to supplier performance, transparency and sourcing.
• Attempt to increase the response rate from our suppliers in our RCOI and due diligence processes, and work with our responding suppliers to improve the content of their responses, including reporting at a product-specific level.
• Continue to compare RCOI results to information collected via independent conflict free smelter validation programs such as the Conflict Free Sourcing Initiative’s Conflict Free Smelter program.

Because McDermott is a downstream user of Covered Minerals, we rely on the representations and information provided by our In-Scope Suppliers. As a result, incomplete or inaccurate information provided by the In-Scope Suppliers could affect the accuracy or completeness of the information set forth above or other information contained in this Conflict Minerals Report.

The foregoing statements made in this Section 6 are forward-looking statements and, as such, are subject to the cautionary statements and disclaimers set forth under the caption “Cautionary Statement Concerning Forward-Looking Statements” in Item 1 of Part 1 of our Annual Report on Form 10-K for the year ended December 31, 2015.

Certification Status:
• CFSP: The processing facility has an active certification or is in the process of renewing its certification.
• TICMC-Active: The processing facility is actively moving through the certification process.
• TICMC-Progressing: Tungsten processing facilities that have committed to obtain a CFSP certification within two years of membership with the Tungsten Industry-Conflict Minerals Committee (TI-CMC).
• LBMA: The processing facility has obtained a Responsible Gold Certification from the London Bullion Market Association.
• LMBA-Pending: The LMBA indicates that the processing facility is working on a Responsible Gold Certificate.
• RJC: The processing facility has obtained a Chain-of-Custody Certification from the Responsible Jewellery Council.
• Other: The processing facility has not yet received compliant or active status.