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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K
 
REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16 OF THE
SECURITIES EXCHANGE ACT OF 1934
For the month of November 2017

FRESENIUS MEDICAL CARE AG & Co. KGaA
(Translation of registrant's name into English)

Else-Kröner Strasse 1
61346 Bad Homburg
Germany
(Address of principal executive offices)

        Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
       Form 20-F     ý         Form 40-F     o

        Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):             

        Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):             

        Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
       Yes     o                     No     ý

        If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82 –               .

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FRESENIUS MEDICAL CARE AG & Co. KGaA

Interim Report of Financial Condition and Results of Operations for the three and nine months ended September 30, 2017 and 2016

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Interim Report of Financial Condition and Results of Operations
for the three and nine months ended September 30, 2017 and 2016

FINANCIAL INFORMATION

Management's Discussion and Analysis

       Since 1996, Fresenius Medical Care AG & Co. KGaA has filed with the U.S. Securities and Exchange Commission ("SEC"), annual and interim reports containing Consolidated Financial Statements prepared in accordance with U.S. Generally Accepted Accounting Principles ("U.S. GAAP"), using the U.S. dollar as our reporting currency. Since 2007, Fresenius Medical Care AG & Co. KGaA has also been required by German and European law to prepare Consolidated Financial Statements in accordance with International Financial Reporting Standards ("IFRS") as adopted by the European Union. As of January 1, 2017, the consolidated financial statements and other financial information included in our quarterly reports on Form 6-K have been, and commencing with our Annual Report on Form 20-F for 2017 the financial statements in our annual reports will be prepared solely in accordance with IFRS as issued by the International Accounting Standards Board ("IASB"), using the euro as our reporting currency, and we have discontinued publishing U.S. GAAP financial information as of the end of 2016. At September 30, 2017, there were no IFRS or International Financial Reporting Interpretation Committee ("IFRIC") interpretations as endorsed by the European Union relevant for interim reporting that differed from IFRS as issued by the IASB. You should read the following discussion and analysis of our results of operations and our subsidiaries in conjunction with our unaudited Consolidated Financial Statements and related notes contained elsewhere in this report, the disclosures and discussions in our IFRS Consolidated Financial Statements for the year ended December 31, 2016 as well as historical financial data prepared in accordance with IFRS for the years 2012 through 2015. These documents are available on our website.

       In this report, "FMC-AG & Co. KGaA," or the "Company," "we," "us" or "our" refers to the Company or the Company and its subsidiaries on a consolidated basis, as the context requires. The term "North America Segment" refers to our North America operating segment, the term "EMEA Segment" refers to the Europe, Middle East and Africa operating segment, the term "Asia-Pacific Segment" refers to our Asia-Pacific operating segment, and the term "Latin America Segment" refers to our Latin America operating segment. The term "Corporate" includes certain headquarters' overhead charges, including accounting and finance, centrally managed production, asset management, quality management, procurement and research and development. The term "Constant Currency" or at "Constant Exchange Rates" means that we have translated local currency revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items for the current reporting period into euro using the prior year exchange rates to ensure a comparable analysis without effect from exchange rate fluctuations on translation, as described below under "Financial Condition and Results of Operations – II. Discussion of Measures – Non – IFRS Measures – Constant Currency."

Forward-looking Statements

       This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). When used in this report, the words "outlook," "expects," "anticipates," "intends," "plans," "believes," "seeks," "estimates" and similar expressions are generally intended to identify forward looking statements. Although we believe that the expectations reflected in such forward-looking statements are reasonable, forward-looking statements are inherently subject to risks and uncertainties, many of which cannot be predicted with accuracy and some of which might not even be anticipated, and future events and actual results, financial and otherwise, could differ materially from those set forth in or contemplated by the forward-looking statements contained elsewhere in this report. We have based these forward-looking statements on current estimates and assumptions made to the best of our knowledge. By

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their nature, such forward-looking statements involve risks, uncertainties, assumptions and other factors which could cause actual results, including our financial condition and profitability, to differ materially positively or negatively relative to the results expressly or implicitly described in or suggested by these statements. Moreover, forward-looking estimates or predictions derived from third parties' studies or information may prove to be inaccurate. Consequently, we cannot give any assurance regarding the future accuracy of the opinions set forth in this report or the actual occurrence of the projected developments described herein. In addition, even if our future results meet the expectations expressed herein, those results may not be indicative of our performance in future periods.

       These risks, uncertainties, assumptions, and other factors, including associated costs, could cause actual results to differ from our projected results include, among others, the following:

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changes in governmental and commercial insurer reimbursement for our complete products and services portfolio, including the United States ("U.S.") Medicare reimbursement system for dialysis and other health care services, including potentially significant changes that could be enacted due to the announced intention of the Trump administration to continue its efforts to repeal and replace the Patient Protection and Affordable Care Act;



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the outcome of government and internal investigations as well as litigation;



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risks relating to compliance with current and future government regulations applicable to our business including, in the U.S., the Anti-Kickback Statute, the False Claims Act, the Stark Law, the Health Insurance Portability and Accountability Act, the Health Information Technology for Economic and Clinical Health Act, the Foreign Corrupt Practices Act, the Food, Drug and Cosmetic Act, and outside the U.S., the EU Medical Device Directive, the EU General Data Protection Regulation, the two invoice policy and the Tendering and Bidding Law in China and other related local legislation as well as other comparable regulatory regimes in many of the more than 120 countries in which we supply health care services and/or products;



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the influence of commercial insurers and managed care organizations, including efforts by these organizations to manage costs by limiting healthcare benefits, reducing provider reimbursement and/or restricting options for patient funding of health insurance premiums;



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the impact of health care, tax and trade law reforms and regulation, including those proposed by the Trump administration in the U.S.;



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product liability risks;



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risks relating to our ability to continue to make acquisitions;



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risks relating to our ability to attract and retain skilled employees, including shortages of skilled clinical personnel;



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the impact of currency fluctuations;



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potential impairment loss on assets in the Latin America Segment due to decreases in the recoverable amount of those assets relative to their book value;



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the United Kingdom initiation, on March 29, 2017, of its withdrawal from the European Union and its possible effects on the tax, tax treaty, currency, operational, legal and regulatory regimes to which our businesses in the region are subject, as well as the present uncertainty regarding these and related issues;



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our ability to protect our information technology systems against cyber security attacks or prevent other data privacy or security breaches;



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changes in our costs of purchasing and utilization patterns for pharmaceuticals;

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introduction of generic or new pharmaceuticals that compete with our products or services;



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launch of new technology that competes with our medical equipment and device businesses;



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changes in raw material and energy costs or the inability to procure raw materials;



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collectability of our receivables, which depends primarily on the efficacy of our billing practices and the financial stability and liquidity of our governmental and commercial payors;



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our ability to achieve cost savings in various health care risk management programs in which we participate or intend to participate; and



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the greater size, market power, experience and product offerings of certain competitors in certain geographic regions and business lines.

       Important factors that could contribute to such differences are noted in "Financial Condition and Results of Operations – I. Overview" below, in Note 12 of the Notes to Consolidated Financial Statements (unaudited), "Commitments and Contingencies" included in this report, in Note 18 of the Notes to Consolidated Financial Statements, "Commitments and Contingencies" included in our Annual Report on Form 20-F for the year ended December 31, 2016, as well as under "Risk Factors," "Business Overview," "Operating and Financial Review and Prospects," and elsewhere in that report.

       Our business is also subject to other risks and uncertainties that we describe from time to time in our public filings. Developments in any of these areas could cause our results to differ materially from the results that we or others have projected or may project.

       Our reported financial condition and results of operations are sensitive to accounting methods, assumptions and estimates that are the basis of our financial statements. The actual accounting policies, the judgments made in the selection and application of these policies as well as the sensitivities of reported results to changes in accounting policies, assumptions and estimates are factors to be considered along with our financial statements and the discussion under "Financial Condition and Results of Operations – III. Results of Operations financial position and net assets – Results of operations" below. As of January 1, 2017, we migrated to reporting in accordance with IASB IFRS and discontinued preparing U.S. GAAP financial information. Please refer to our significant and critical accounting policies and estimates in Note 1 "The Company, Basis of Presentation and Significant Accounting Policies" and Note 2 "Discretionary Decisions and Sources of Estimation Uncertainties" in our Consolidated Financial Statements in accordance with IFRS, as adopted in the European Union, for the year ended December 31, 2016. Those Consolidated Financial Statements are available on our website at https://www.freseniusmedicalcare.com/en/home/ and have not been filed with the SEC. In furnishing our website address in this report, however, we do not intend to incorporate any information on our website into this report, and you should not consider any information on our website to be part of this report.

       Rounding adjustments applied to individual numbers and percentages shown in this and other reports may result in these figures differing immaterially from their absolute values.

Financial Condition and Results of Operations

I. Overview

       We are the world's largest kidney dialysis company, based on publicly reported sales and number of patients treated. We provide dialysis care and related services to persons who suffer from end stage renal

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disease ("ESRD") as well as other health care services. We develop and manufacture a wide variety of health care products, which includes both dialysis and non-dialysis products. Our dialysis products include dialysis machines, water treatment systems and disposable products while our non-dialysis products include acute cardiopulmonary and apheresis products. We sell our health care products to customers in more than 120 countries and we also use them in our own health care service operations. Our dialysis business is therefore vertically integrated. We describe certain other health care services that we provide in our North America and Asia-Pacific segments as "Care Coordination." Care Coordination currently includes, but is not limited to, coordinated delivery of pharmacy services, vascular, cardiovascular and endovascular specialty services, non-dialysis laboratory testing services, physician nephrology and cardiology services, health plan services, ambulatory surgery center services and urgent care services. Care Coordination also includes the coordinated delivery of emergency, intensivist and hospitalist physician services as well as transitional care which we refer to as "hospital related physician services." All of these Care Coordination services together with dialysis care and related services represent our health care services. We estimated the volume of the global dialysis market was approximately €68 billion in 2016. Due to the complexity and evolving nature of care coordination services, we are currently unable to estimate the global volume of this market. Dialysis patient growth results from factors such as the aging population and increased life expectancies; shortage of donor organs for kidney transplants; increasing incidence of kidney disease and better treatment of and survival of patients with diabetes, hypertension and other illnesses, which frequently lead to the onset of chronic kidney disease; improvements in treatment quality, new pharmaceuticals and product technologies, which prolong patient life; and improving standards of living in developing countries, which make life-saving dialysis treatment available. We are also engaged with entities, in which we have ownership of less than 100%, to fund different areas of health care research.

       As a global company delivering health care services and products, we face the challenge of addressing the needs of a wide variety of stakeholders, such as patients, customers, payors, regulators and legislators in many different economic environments and health care systems. In general, government-funded programs (in some countries in coordination with private insurers) pay for certain health care items and services provided to their citizens. Not all health care systems provide for dialysis treatment. Therefore, the reimbursement systems and ancillary services utilization environment in various countries significantly influence our business.

Premium Assistance Programs

       On August 18, 2016, the Center for Medicare & Medicaid Services ("CMS") issued a request for information ("RFI") seeking public comment on concerns about providers' steering patients inappropriately to individual plans offered on the Patient Protection and Affordable Care Act individual health insurance market. We and other dialysis providers, commercial insurers and other industry participants responded to the RFI, and in that response, we reported that we do not engage in such steering. On January 3, 2017, we received a subpoena from the United States Attorney for the District of Massachusetts inquiring into our interactions and relationships with the American Kidney Fund ("AKF" or "the Fund"), including our charitable contributions to the Fund and the Fund's financial assistance to patients for insurance premiums. On December 14, 2016, CMS published an Interim Final Rule ("IFR") titled "Medicare Program; Conditions for Coverage for End-Stage Renal Disease Facilities-Third Party Payment" that would amend the Conditions for Coverage for dialysis providers, like Fresenius Medical Care Holdings ("FMCH"). The IFR would have effectively enabled insurers to reject premium payments made by patients who received grants for individual market coverage from the AKF and therefore, could have resulted in those patients losing their individual market health insurance coverage. The loss of individual market coverage for these patients would have a material and adverse impact on our operating results. On January 25, 2017, a federal district court in Texas, responsible for litigation initiated by a patient

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advocacy group and dialysis providers including FMCH, preliminarily enjoined CMS from implementing the IFR (Dialysis Patient Citizens v. Burwell (E.D. Texas, Sherman Div.)). The preliminary injunction was based on CMS' failure to follow appropriate notice-and-comment procedures in adopting the IFR. The injunction remains in place and the court retains jurisdiction over the dispute. On June 22, 2017, CMS requested a stay of proceedings in the litigation pending further rulemaking concerning the IFR. CMS stated, in support of its request, that it expects to publish a Notice of Proposed Rulemaking in the Federal Register and otherwise pursue a notice-and-comment process. Plaintiffs in the litigation, including FMCH, consented to the stay, which was granted by the court on June 27, 2017.

       The operation of charitable assistance programs like that of the AKF is also receiving increased attention by state insurance regulators. The result may be a regulatory framework that differs from state to state. Even in the absence of the IFR or similar administrative actions, insurers are likely to continue efforts to thwart charitable premium assistance to our patients for individual market plans and other insurance coverages. If successful, these efforts would have a material adverse impact on our operating results.

Significant U.S. Reimbursement Developments

       The majority of health care services we provide are paid for by governmental institutions. For the nine months ended September 30, 2017, approximately 34% of our consolidated revenue is attributable to U.S. federally-funded health care benefit programs, such as Medicare and Medicaid reimbursement, under which reimbursement rates are set by CMS. Legislative changes could affect Medicare reimbursement rates for a significant portion of the services we provide. To date, while we have generally experienced stable reimbursement globally, the stability of reimbursement in the U.S. has been affected by (i) the implementation of the ESRD prospective payment system ("ESRD PPS") in January 2011, (ii) the U.S. federal government across the board spending cuts in payments to Medicare providers commonly referred to as "U.S. Sequestration," (iii) the reduction to the ESRD PPS rate to account for the decline in utilization of certain drugs and biologicals associated with dialysis pursuant to the American Taxpayer Relief Act of 2012 ("ATRA") as subsequently modified under the Protecting Access to Medicare Act of 2014 ("PAMA") and (iv) CMS's 2016 final rule on the Physician Fee Schedule with material decreases in reimbursement for certain procedures. Please see the broader discussion of these legislative developments below:

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Under the Medicare Improvements for Patients and Providers Act of 2008 ("MIPPA"), for patients with Medicare coverage, all ESRD payments for dialysis treatments are made under a single bundled payment rate which provides a fixed payment rate, ESRD PPS, to encompass substantially all goods and services provided during the dialysis treatment. MIPPA further created the ESRD quality incentive program ("QIP") which provides that dialysis facilities that fail to achieve quality standards established by CMS could have payments reduced by up to 2 percent.



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MIPPA also includes a provision for an annual adjustment to the ESRD PPS base rate based on changes in the costs of a "market basket" of certain healthcare items and services, less a productivity adjustment.



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Additionally, as a result of the Budget Control Act of 2011 ("BCA") and subsequent activity in Congress, U.S. Sequestration ($1.2 trillion in across-the-board spending cuts in discretionary programs) took effect on March 1, 2013 and is expected to continue through mid-2024. In particular, a 2% reduction to Medicare payments took effect on April 1, 2013 and continues in force. Spending cuts pursuant to U.S. Sequestration have adversely affected and will continue to adversely affect our operating results.

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In 2014, as mandated by ATRA, CMS issued a final rule for the ESRD PPS, which phased in payment reductions to account for changes in utilization of certain drugs and biologicals that are included in the ESRD PPS, which were subsequently modified by PAMA. These reductions reduced our market basket inflation adjustment by 1.25% in 2016, and will reduce our inflation adjustment by 1.25% in 2017, and 1% in 2018.



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On November 15, 2016, CMS published a final rule that modifies certain payment policies, payment rates, and quality provisions in the Physician Fee Schedule for calendar year 2017. The final rule includes material decreases in the reimbursement rates for many of the procedures performed routinely by Fresenius Vascular Care, now known as "Azura Vascular Care." These reimbursement cuts may have a material adverse impact on our operating results.



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On October 27, 2017, CMS issued the final rule updated the ESRD PPS rate for 2018. We and other large dialysis organizations will experience a 0.4% increase in payments under this final rule. The base rate per treatment is $232.37 which represents a 0.3% increase from the 2017 base rate. The 2017 final rule reflects a market basket increase of 0.3% (1.9% market basket increase that is partially offset by a 1% reduction under PAMA and a 0.6% multifactor productivity adjustment) and application of the wage index budget-neutrality adjustment factor of 1.000531. The 2018 ESRD PPS rate does not contain any changes to the previous wage index floor of 0.4000.



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The ESRD PPS final rule also updated the ESRD QIP, including for payment years 2019, 2020, and 2021, under which payment incentives are made to dialysis facilities to improve the quality of care that they provide. The final rule includes updates to the ESRD QIP Extraordinary Circumstances Exception Policy, Performance Score Certificate, National Healthcare Safety Network dialysis event data validation sampling methodology, and quality measures. The final rule also updated the payment for dialysis provided to patients with acute kidney injuries to be equal to the 2018 ESRD PPS base rate.

       Presently, there is considerable uncertainty regarding possible future changes in health care regulation, including the regulation of reimbursement for dialysis services. See "Risk Factors – We operate in a highly regulated industry such that the potential for legislative reform provides uncertainty and potential threats to our operating models and results" which is included in our Annual Report on Form 20-F for the year ended December 31, 2016.

       On November 6, 2015, CMS published a final rule to update payment policies and rates under the ESRD PPS for renal dialysis services furnished on or after January 1, 2016. In this final rule, CMS clarified that once any non-oral drug in a category previously considered "oral only" is approved by the U.S. Food and Drug Administration ("FDA"), such category of drugs will cease to be considered oral only. CMS has designated a process for determining when a product is no longer an oral-only drug and for including new injectable and intravenous drugs into the PPS. Under this process, Amgen's new intravenous calcimimetic, Parsabiv™, which is used in the treatment of secondary hyperparathyroidism in adult patients with chronic kidney disease on dialysis, will be included in the ESRD PPS as of January 1, 2018. Because calcimimetics are used to treat a condition for which there is no current functional category in the ESRD PPS, both Parsabiv™ and its oral equivalent, Sensipar®, will be reimbursed separately by CMS for a two-year period beginning January 1, 2018, using a transitional drug add-on payment adjustment ("TDAPA"). We continue to prepare for the transition of this drug category under the TDAPA process. This type of transition has not occurred previously under the ESRD PPS and could have a material adverse effect on our business, results of operations and financial condition.

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       As a consequence of the pressure to decrease health care costs, government reimbursement rate increases in the U.S. have historically been limited and are expected to continue in this fashion. We have generally experienced stable reimbursement globally, including the balancing of unfavorable reimbursement changes in certain countries with favorable changes in other countries. However, any significant decreases in Medicare or commercial reimbursement rates or patient access to commercial insurance plans could have material adverse effects on our health care services business and, because the demand for dialysis products is affected by Medicare reimbursement, on our products business. To the extent that increases in operating costs that are affected by inflation, such as labor and supply costs, are not fully reflected in a compensating increase in reimbursement rates, our business and results of operations may be adversely affected.

Participation in new Medicare payment arrangements

       Twenty-four of our dialysis organizations participate in CMS's Comprehensive ESRD Care Model (the "Model"), which involves ESRD Seamless Care Organizations, or "ESCOs." This Model seeks to deliver better health outcomes for ESRD patients while lowering Medicare's costs. ESCOs that achieve the program's minimum quality thresholds and generate reductions in CMS's cost of care above certain thresholds for the ESRD patients covered by the ESCO will receive a share of the cost savings. Our ESCOs also share in the risk of cost increases and are obligated to reimburse CMS for a share of any such increases if actual costs rise above set thresholds. For six of our ESCOs, the Model commenced on October 1, 2015, and for the other eighteen ESCOs, the Model commenced on January 1, 2017. The initial agreement period for all ESCOs participating in the Model lasts through 2018. As originally specified, CMS and an ESCO would then have the option of extending the ESCO's agreement for an additional two years based on the ESCO's performance. CMS relied on authority granted by the Patient Protection and Affordable Care Act ("ACA") to implement this project. Congress is expected to continue to pursue efforts to repeal, replace or revise the ACA, and the posture of CMS in the Trump administration toward projects of this sort may differ from that of the Obama administration. Such changes may affect the project's future prospects in ways which we cannot predict.

       The Bundled Payments for Care Improvement ("BPCI") initiative is a CMS three-year pilot initiative involving bundled payments for the individual services, including acute inpatient hospital services, physician services, and post-acute services, furnished to Medicare beneficiaries during a single episode of illness or course of treatment. Our majority-owned subsidiary, Sound Inpatient Physicians, Inc. ("Sound"), commenced participation under BPCI in April 2015 in several markets. Under the BPCI, Sound has the ability to receive additional payments from CMS if its physicians are able to deliver quality care at a cost that is lower than certain established benchmarks, but it also has the risk of incurring financial penalties if it is unsuccessful. Should Sound fail to perform as required under its BPCI agreement, CMS may terminate Sound's participation in the BPCI program, in whole or in part. This project was also implemented under ACA authority and is subject to the same caveats and uncertainties noted above with respect to ESCOs.

       We have entered into various arrangements which involve taking risk for the complete care of certain ESRD patients in exchange for set payments. CMS approved our application to offer Medicare Advantage ESRD Chronic Special Needs Plans ("MA-CSNPs") in five states as of January 1, 2017. MA-CSNPs are Medicare Advantage health plans offered by private companies that contract with Medicare to provide patients with Medicare benefits. Enrolment in these plans is limited to special needs individuals with specific severe or disabling chronic conditions, such as ESRD. Our MA-CSNPs will provide services, including Care Coordination services, and receive capitated payments from Medicare for the complete care of enrolled ESRD patients.

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       We have also entered into sub-capitation and other shared savings arrangements with certain Medicare Advantage plans under which we assume risk in providing care to the plans' ESRD patients (those patients that develop ESRD while they are plan members) while paid on a per patient per month basis. The 21 ^st  Century Cures Act, enacted December 13, 2016, removes the prohibition that previously barred individuals who already have ESRD from enrolling in a Medicare Advantage plan beginning 2021. We anticipate that this provision may present us with expanded business opportunities, but we cannot quantify its impact on our business at this time.

Company Structure

       Our operating segments are the North America Segment, the EMEA Segment, the Asia-Pacific Segment and the Latin America Segment. The operating segments are determined based upon how we manage our businesses with geographical responsibilities. All segments are primarily engaged in providing health care services and the distribution of products and equipment for the treatment of ESRD and other extracorporeal therapies. Management evaluates each segment using measures that reflect all of the segment's controllable revenues and expenses. With respect to the performance of business operations, management believes that the most appropriate IFRS measures are revenue, operating income and operating income margin. We do not include income taxes as we believe this is outside the segments' control. Financing is a corporate function which our segments do not control. Therefore, we do not include interest expense relating to financing as a segment measurement. Similarly, we do not allocate certain costs which relate primarily to certain headquarters' overhead charges, including accounting and finance, because we believe that these costs are also not within the control of the individual segments. Production of products, production asset management, quality management and procurement related to production are centrally managed at Corporate. Global research and development is also centrally managed at Corporate. These Corporate activities do not fulfill the definition of a segment according to IFRS 8. Products are transferred to the segments at cost; therefore no internal profit is generated. The associated internal revenue for the product transfers and their elimination are recorded as Corporate activities (See Note 14 of the Notes to Consolidated Financial Statements (unaudited) "Segment and Corporate Information" found elsewhere in this report). Capital expenditures for production are based on the expected demand of the segments and consolidated profitability considerations. In addition, certain revenues, investments and intangible assets, as well as any related expenses, are not allocated to a segment but accounted for as Corporate. Accordingly, all of these items are excluded from our analysis of segment results which are discussed below in the discussion of our consolidated results of operations.

II. Discussion of Measures

Non-IFRS Measures

       Certain key performance indicators and other financial information, as well as discussions and analyses, set out in this report include measures which are not defined by IFRS (Non-IFRS). We believe this information, along with comparable IFRS measurements, is useful to our investors as it provides a basis for measuring our performance. Non-IFRS financial measures should not be viewed or interpreted as a substitute for financial information presented in accordance with IFRS. Wherever appropriate, we provide reconciliations to the most directly comparable IFRS measures.

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Constant Currency

       Some key performance indicators and other financial measures used in this report such as changes in revenue, operating income and net income attributable to shareholders of FMC-AG & Co. KGaA include the impact of translating local currencies to our reporting currency for financial reporting purposes. We calculate these non-IFRS financial measures at constant exchange rates in our filings to show changes in our revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items without giving effect to period-to-period currency fluctuations. Under IFRS, amounts received in local (non-euro) currency are translated into euro at the average exchange rate for the period presented. Once we translate the local currency for the constant currency, we then calculate the change, as a percentage, of the current period using the prior period exchange rates versus the prior period. The single quarter, excluding the first quarter, results are calculated as the variance between the current year-to-date results less the preceding quarter's year-to-date which makes the single quarter subject to further foreign exchange fluctuation. This resulting percentage is a non-IFRS measure referring to a change as a percentage at constant currency. These currency-adjusted financial measures are identifiable by the designated terms "Constant Exchange Rates" or "Constant Currency."

       We believe that the measures at Constant Currency (Non-IFRS) are useful to investors, lenders and other creditors because such information enables them to gauge the impact of currency fluctuations on our revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items from period to period. However, we also believe that the usefulness of data on Constant Currency period-over-period changes is subject to limitations, particularly if the currency effects that are eliminated constitute a significant element of our revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA or other items and significantly impact our performance. We therefore limit our use of Constant Currency period-over-period changes to a measure for the impact of currency fluctuations on the translation of local currency into euro. We do not evaluate our results and performance without considering both Constant Currency period-over-period changes in non-IFRS revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items and changes in revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items prepared in accordance with IFRS. We caution the readers of this report to follow a similar approach by considering data on Constant Currency period-over-period changes only in addition to, and not as a substitute for or superior to, changes in revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items prepared in accordance with IFRS. We present the growth rate derived from IFRS measures next to the growth rate derived from non-IFRS measures such as revenue, operating income, net income attributable to shareholders of FMC-AG & Co. KGaA and other items. As the reconciliation is inherent in the disclosure, we believe that a separate reconciliation would not provide any additional benefit.

Delivered EBIT

       As a result of the significance of noncontrolling interest holders in our operations, we believe a measure that is meaningful to investors is operating income less noncontrolling interests ("Delivered EBIT"). Delivered EBIT approximates the operating income attributable to the shareholders of FMC-AG & Co. KGaA. As such, we believe that operating income, or EBIT, is the closest comparable

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IFRS measure. Below is a table showing the reconciliation of Operating Income to Delivered EBIT for each of our reporting segments:

EBITDA

       EBITDA (earnings before interest, tax, depreciation and amortization expenses) was approximately €2,397 million, 17.9% of revenue for the nine-months period ended September 30, 2017,

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FRESENIUS MEDICAL CARE AG & Co. KGaA

Interim Report of Financial Condition and Results of Operations
for the three and nine months ended September 30, 2017 and 2016

and €2,192 million, 18.0% of revenue for the same period of 2016. EBITDA is the basis for determining compliance with certain covenants contained in our Amended 2012 Credit Agreement or may be relevant in other major financing arrangements. You should not consider EBITDA to be an alternative to net earnings determined in accordance with IFRS or to cash flow from operations, investing activities or financing activities. In addition, not all funds depicted by EBITDA are available for management's discretionary use. For example, a substantial portion of such funds are subject to contractual restrictions and functional requirements for debt service, to fund necessary capital expenditures and to meet other commitments from time to time as described in more detail elsewhere in this report. EBITDA, as calculated, may not be comparable to similarly titled measures reported by other companies. A reconciliation of EBITDA to cash flow provided by (used in) operating activities, which we believe to be the most directly comparable IFRS financial measure, is calculated as follows:

Debt/EBITDA

       The ratio of debt to EBITDA is a key financial performance indicator used for overseeing the Company. To determine the total debt to EBITDA ratio, financial debt is compared to EBITDA for the last twelve months (adjusted for acquisitions and divestitures with a purchase price above a €50 million threshold as defined in the Amended 2012 Credit Agreement and non-cash charges). The Company's ratio of net debt to EBITDA is also used to determine pricing under the Amended 2012 Credit Agreement. See Note 8 of the Notes to Consolidated Financial Statements, "Long-term Debt and Capital Lease Obligations." We believe this ratio provides more reliable information regarding the extent to which we are able to meet our payment obligations than considering only the total amount of financial debt. The

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FRESENIUS MEDICAL CARE AG & Co. KGaA

Interim Report of Financial Condition and Results of Operations
for the three and nine months ended September 30, 2017 and 2016

following table shows the reconciliation of debt to EBITDA ratio as of September 30, 2017 and December 31, 2016.

(1) Including adjustments for acquisitions and divestitures made within the reporting period with a purchase price above a €50 million threshold as defined in the Amended 2012 Credit Agreement.

(2) Last 12 months.

Return on Invested Capital ("ROIC")

       ROIC is the ratio of operating income, for the last twelve months, after tax ("Net Operating Profit After Tax" or "NOPAT") to average invested capital of the last five balance sheet dates and expresses how efficiently we allocate the capital under our control or how well we employ our capital with regard to a specific investment project which is presented in the table below. Additionally, the table below presents a

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FRESENIUS MEDICAL CARE AG & Co. KGaA

Interim Report of Financial Condition and Results of Operations
for the three and nine months ended September 30, 2017 and 2016

reconciliation of average invested capital to the IFRS measure total assets, which we believe to be the most directly comparable IFRS financial measure.