Cabot Corporation (CBT, NYSE)
Industry: Specialty Chemicals
Annual report, fiscal year 2015






Improving product
performance, acting
responsibly, focusing
on our customers and
innovating for the future

Cabot Corporation is a leading global specialty chemicals and performance materials company headquartered in Boston, Massachusetts, USA.

Across the most innovative industries, we work with customers to produce products that make our world cleaner, safer and more comfortable. We deliver a broad range of products and solutions that advance our customers' businesses in the transportation, infrastructure, environment and consumer industries.

Our global network consists of 44 manufacturing facilities in 21 countries.




## Our business segments

## Reinforcement Materials

Rubber Blacks; Elastomer Composites

Carbon black for
reinforcement of rubber
products including: tires,
hoses, belts, molded goods

## Specialty Fluids

Cesium Formate Brines; Fine Cesium Chemicals

Advanced cesium products for use in: oil and gas well drilling and completion fluids, catalysts, titanium dioxide, glass, automotive brazing fluids

## Performance Chemicals

Specialty Carbons and Formulations; Metal Oxides

Specialty additives that enable performance in: plastics, wire and cable, toners, coatings, adhesives and sealants, electronics, batteries, inks, inkjet printing, composites, silicones, building construction materials, industrial insulation

## Purification Solutions

Activated Carbon

Activated carbon for
purification in various
applications including: air and
water, food and beverages,
pharmaceuticals, catalysts



A MESSAGE TO OUR SHAREHOLDERS:

## Making progress in
a challenging year

Fiscal 2015 was a demanding and difficult year, in which we had to navigate in an uncertain market environment. Tough economic and financial headwinds with continued competitive intensity made this past year one of the most challenging that the industry and Cabot have faced for some time. We encountered a slowdown in the growth of emerging markets while developed markets continued to show modest improvement. In addition, we saw oil prices decline significantly and experienced weakening foreign currencies.




As we confronted these obstacles, I believe that we came out a stronger company because of the way that we responded. We demonstrated our commitment to our core values, and our outstanding global team met these challenges head on. Furthermore, we continue to strike a balance between the need to reduce costs and our ongoing work to innovate and position the company for long-term success.

## Performance in 2015

Our businesses suffered from the deteriorating global economic environment, most notably in our Reinforcement Materials and Specialty Fluids segments. With fiscal 2015 operating results approximately $100 million lower in Reinforcement Materials and $30 million lower in Specialty Fluids as compared to fiscal 2014, we took a significant step back in our financial performance. The drivers of this lower performance were largely external factors, such as lower oil prices resulting in decreased margins for Reinforcement Materials and reduced demand for Specialty Fluids; slowing demand in Asia and South America; and less favorable foreign currency exchange rates.
This resulted in adjusted earnings per share (EPS) and adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) lower than the prior year. However, we generated strong cash flow from operations of $499 million. We used this cash to reinvest in our businesses to maintain our leadership positions and we returned cash to our shareholders through $56 million in dividends and $96 million in share repurchases.

Looking to fiscal 2016 and beyond, we have made company-wide changes to improve our competitiveness and ensure we are more attuned to the needs and expectations of our customers. We are committed to showing significant improvement in the coming year and are targeting an improvement of adjusted EPS of $0.75 versus fiscal 2015. As part of this, improvement is expected to come from restructuring actions we are taking to reduce costs by approximately $50 million in fiscal 2016 as compared to fiscal 2015. Our key objective is to create value for our shareholders, and in doing so, we remain focused on operational, technological and commercial actions to maintain and extend our global leadership positions.

Though the economic environment clearly affected our business, our underlying fundamentals remain intact. We are leaders in all of the businesses we operate and we expect strong cash flows from operations to continue while maintaining a solid balance sheet. Although there is still much work to do and there will be further challenges ahead, it is important to highlight a few areas in which our continued progress and excellence can be seen.




65%+

of our facilities have
achieved more than
one year without
experiencing a
recordable injury



# → A responsible company

This year marked an important new chapter in our sustainability journey. Though we have made considerable progress toward our long-standing goals to reduce our energy and greenhouse gas intensity, we recognized that we could do more and have a broader impact. As a result we introduced three new sustainability goals. These include a commitment to reduce our air emission intensity of both nitrogen oxides ( \( NO_{x} \) ) and sulfur dioxide ( \( SO_{2} \) ) by 20% and 40%, respectively; decrease our waste disposal volumes by 15%; and maintain our total recordable injury

rate in the top 10% of chemical producers. We also became a signatory for the United Nations Global Compact (UNGC), and have pledged to uphold the UNGC’s 10 universally accepted principles in the areas of human rights, labor, environment and anti-corruption. These new sustainability goals and our commitment to the UNGC showcase our dedication to continued safety, health and environmental progress and will enhance our sustainability performance.




We have also advanced our performance toward our safety goals. We have consistently demonstrated that zero incidents is possible through the performance of many of our facilities. Over 65% of our facilities have achieved more than one year without experiencing a recordable injury and we have reduced our injury severity rate by 50% since 2012. In addition, we have reduced the number of significant process safety events by one-third compared to last year.



These are outstanding accomplishments and I am proud of the strong culture that we have built and the safety and environmental strides we have made. However, I know that we can always do better and I am confident that our continued investments and efforts will move us closer to zero incidents across all of our facilities globally.



50%

reduction in injury
severity rate since 2012







"Together with Cabot we have built a dynamic of innovation through a whole range of projects, some of which have been genuine breakthroughs in innovation for the benefit of our tires' performance."

— Terry Gettys, Michelin Executive Vice President of Research and Development

our different customers' needs that will allow us to create more value and achieve top- and bottom-line improvements. This will further enable us to achieve greater profitability and a better competitive position.

# → Closer to the customer

Nothing pleases us more than helping our customers succeed, and when it comes to serving them, we always expect to be their first choice. In 2015, we received many awards and recognitions in a wide range of topics. Yet the awards we cherish the most are those granted to us by our customers. For example, we were honored to receive the Michelin Supplier Award 2015 in the innovation category. I see this as a direct reflection of our strong technological capabilities and the ability of our products to drive value for our customers.

We remain focused on commercial aspects of our business to help us move closer to our customers. We constantly strive to attain a deeper understanding of Through new technologies and tools, our initiatives will help to increase revenues and profits by providing enhanced customer-focused capabilities. As a result, we will be better positioned to respond to shifting demand from mature and emerging economies, and meet changing customer expectations and needs across the value chain. Regardless of the environment, I believe it is important that we stay committed to investing in our people, skills and customer-focused programs for the long-term.






## → Technology

As always, we look to capitalize on our greatest assets, our innovative employees and our industry-leading technologies. In doing so, we are able to create value and provide solutions that address customer and environmental challenges and demands. In order to expand, grow and improve profitability, we are continuously seeking new opportunities and exciting innovations to add to our industry leading portfolio.

For example, actions have been taken by regulators and companies to reduce the concentration of polycyclic aromatic hydrocarbons (PAH) in rubber and plastics products, such as sporting equipment, clothing, footwear, toys and childcare items. In response, we have introduced a new series of low PAH carbon blacks that not only help companies comply with these new regulations, but also meet stringent performance requirements for end-use products.

I truly believe that we have the best team in the industry. We are a team that is passionate about helping our customers succeed and we make every effort to understand their businesses and end-use applications. By understanding the dynamics of the value chain, we deliver innovative solutions to solve our customers' challenges.






## Outlook for 2016

Looking ahead, there is no doubt that 2016 will bring its own mix of successes and challenges, but we know what we must do. We must continue to focus intensely on the things that we can control: providing our customers with the best products and services in the market, managing our costs, building our brand, and doing our part to keep our people and our communities safe. If we do that, I believe that our true long-term value will be properly reflected.

On behalf of my colleagues on the Management Executive Committee, I would like to thank all of our employees for their commitment, hard work and dedication, as well as their willingness to embrace change. For those who were impacted by our cost reduction efforts, I want to thank you for your many contributions to Cabot and I wish you well in your future endeavors.

I appreciate all of the great work that was done this year. It is because of this team, and their ability to do so much more for our customers than anyone else, that I have such great confidence in our future. I also thank our customers, shareholders and other stakeholders for the trust and support they continue to place in us. In 2016, we will drive execution across our business to make Cabot stronger, better and more successful – together.

Regards,



Patrick M. Prevost
President and Chief Executive Officer
Cabot Corporation






## Cabot Corporation Financial Highlights (dollars in USD millions, except per share amounts)

<table><tr><td>FISCAL YEAR</td><td>2013</td><td>2014</td><td>2015</td></tr><tr><td>Operating Results</td><td></td><td></td><td></td></tr><tr><td>Operating revenues</td><td>$3,456</td><td>$3,647</td><td>$2,871</td></tr><tr><td>Net income (loss) attributable to Cabot Corporation*</td><td>$ 153</td><td>$ 199</td><td>$ (334)</td></tr><tr><td>Per diluted common share*</td><td>$ 2.36</td><td>$ 3.03</td><td>$ (5.27)</td></tr><tr><td>Adjusted earnings per share**</td><td>$ 2.93</td><td>$ 3.43</td><td>$ 2.71</td></tr><tr><td>Financial Position</td><td></td><td></td><td></td></tr><tr><td>Total assets</td><td>$4,233</td><td>$4,084</td><td>$3,075</td></tr><tr><td>Net property, plant and equipment</td><td>$1,600</td><td>$1,581</td><td>$1,383</td></tr><tr><td>Stockholders&#x27; equity</td><td>$2,083</td><td>$2,064</td><td>$1,338</td></tr><tr><td>Adjusted return on invested capital</td><td>8%</td><td>9%</td><td>8%</td></tr></table>

* fiscal 2015 includes the impact of the Purification Solutions' impairment charges

** excludes financial results of divested businesses and certain items

## Total Recordable Incident Rate

The total number of recordable incidents per 200,000 hours worked (~100 workers) inclusive of employees and contractors



## Severity Rate

The number of lost work days resulting from recordable injuries per 200,000 hours worked (~100 workers) inclusive of employees and contractors



## Adjusted EBITDA \( ^{*} \) 

$m/fiscal year



## Adjusted EPS \( ^{*} \) 

$ per share/fiscal year






## Financial performance

## PERFORMANCE GRAPH

The graph compares the cumulative total stockholder return on Cabot common stock for the five-year period ending September 30, 2015 with the S&P 500 Chemicals Index, the S&P 500 Specialty Chemicals Index, the S&P 500 Index, the S&P Midcap 400 Index and the S&P 400 Chemicals Index. The comparisons assume the investment of $100 on October 1, 2010 in Cabot's common stock and in each of the indices and the reinvestment of all dividends.



## Comparison of Five-Year Cumulative Total Shareholder Return

<table><tr><td>SEPTEMBER 30</td><td>2010</td><td>2011</td><td>2012</td><td>2013</td><td>2014</td><td>2015</td></tr><tr><td>Cabot Corporation</td><td>$100</td><td>$ 77.51</td><td>$116.80</td><td>$139.25</td><td>$168.14</td><td>$106.82</td></tr><tr><td>S&amp;P 500 Chemicals Index</td><td>$100</td><td>$ 99.81</td><td>$136.91</td><td>$171.83</td><td>$211.26</td><td>$177.04</td></tr><tr><td>S&amp;P 500 Specialty Chemicals Index</td><td>$100</td><td>$102.47</td><td>$145.63</td><td>$204.52</td><td>$250.80</td><td>$246.20</td></tr><tr><td>S&amp;P 500 Index</td><td>$100</td><td>$101.15</td><td>$131.69</td><td>$157.17</td><td>$188.18</td><td>$187.02</td></tr><tr><td>S&amp;P Midcap 400 Index</td><td>$100</td><td>$ 98.72</td><td>$126.90</td><td>$162.02</td><td>$181.16</td><td>$183.69</td></tr><tr><td>S&amp;P 400 Chemicals Index</td><td>$100</td><td>$ 95.21</td><td>$139.56</td><td>$172.32</td><td>$200.25</td><td>$182.59</td></tr></table>



## NON-GAAP RECONCILIATIONS

Adjusted EPS, Total Segment EBIT, adjusted EBITDA and adjusted ROIC are not measures of financial performance under U.S. generally accepted accounting principles (GAAP) and should not be considered in isolation from, or as replacements for, earnings per share from continuing operations or income from continuing operations before taxes determined in accordance with GAAP, nor as substitutes for measures of profitability or performance reported in accordance with GAAP. These non-GAAP measures exclude certain items of expense or income that management does not consider representative of our ongoing performance. The following tables reconcile non-GAAP measures used in this report to the closest GAAP measure, or explain our calculations.

## Adjusted Earnings Per Share (EPS) \( ^{*} \) 

A reconciliation of adjusted EPS to EPS from continuing operations, the most directly comparable GAAP financial measure is set forth below.

<table><tr><td>per share</td><td>2011</td><td>2012</td><td>2013</td><td>2014</td><td>2015</td></tr><tr><td>Net income (loss) per diluted common share attributable to Cabot Corporation</td><td>$3.57</td><td>$5.99</td><td>$2.36</td><td>$3.03</td><td>$ (5.27) \)</td></tr><tr><td>Less: Net income (loss) per diluted common share from discontinued operations</td><td>$0.80</td><td>$3.15</td><td>$ (0.01)</td><td>$0.02</td><td>$ 0.02</td></tr><tr><td>Net income (loss) per diluted common share from continuing operations</td><td>$2.77</td><td>$2.84</td><td>$2.37</td><td>$ 3.01</td><td>$ (5.29)</td></tr><tr><td>Less: Certain items per share and dilutive impact of shares</td><td>$0.34</td><td>$ (0.49)</td><td>$ (0.56)</td><td>$ (0.42)</td><td>$ (7.98)</td></tr><tr><td>Adjusted net income per share</td><td>$2.43</td><td>$ 3.33</td><td>$ 2.93</td><td>$ 3.43</td><td>$ 2.71</td></tr></table>

## Total Segment EBIT \( ^{*} \) 

Total Segment EBIT (earnings before interest and tax) includes equity in net income of affiliated companies, net of tax, the full operating results of a contractual joint venture in Purification Solutions, royalties paid and net income attributable to non-controlling interests, net of tax, but excludes certain items, interest expense, foreign currency transaction gains and losses, interest income, dividend income, unearned revenue, the effects of LIFO accounting for inventory and unallocated general and corporate costs. A reconciliation of Total Segment EBIT to income from continuing operations before income taxes and equity in net earnings of affiliate companies is provided in our Financial Information by Segment and Geographic Area footnote in our Form 10-K.

## Adjusted EBITDA \( ^{*} \) 

A calculation of adjusted EBITDA (earnings before interest, tax, depreciation and amortization) is set forth below.

<table><tr><td>dollars in millions</td><td>2011</td><td>2012</td><td>2013</td><td>2014</td><td>2015</td></tr><tr><td>Total Segment EBIT</td><td>$354</td><td>$410</td><td>$386</td><td>$447</td><td>$332</td></tr><tr><td>Plus: depreciation and amortization</td><td>$142</td><td>$154</td><td>$189</td><td>$200</td><td>$183</td></tr><tr><td>Less: adjustments to depreciation</td><td>$ 1</td><td>$ 4</td><td>$ (4)</td><td>-</td><td>$ (1)</td></tr><tr><td>Plus: unallocated corporate costs</td><td>$ (53)</td><td>$ (56)</td><td>$ (48)</td><td>$ (54)</td><td>$ (46)</td></tr><tr><td>Adjusted EBITDA</td><td>$442</td><td>$504</td><td>$ 531</td><td>$593</td><td>$ 470</td></tr></table>

## Adjusted ROIC \( ^{*} \) 

In calculating adjusted ROIC (return on invested capital), we divide the four quarter rolling net income (loss) attributable to Cabot Corporation (less the after-tax impact of non-controlling interest in net income, net interest expense, certain items and discontinued operations) by the most recent five quarters' average of Cabot Corporation stockholders' equity plus non-controlling interest's equity and debt, less cash and cash equivalents and the four quarter rolling impact of after-tax certain items. ROIC is not a measure of financial performance under GAAP and may not be defined and calculated by other companies in the same manner we calculate ROIC.



## Our leadership

## Board of Directors

## John F. O'Brien

(Non-Executive Chairman of the Board) retired President and Chief Executive Officer, Allmerica Financial Corporation (holding company for insurance and other financial services)

## Patrick M. Prevost

President and Chief Executive Officer, Cabot Corporation

## Juan Enriquez

Chairman and Chief Executive Officer, Biotechnomy Ventures (life sciences research and investment firm)

## William C. Kirby

Spangler Family Professor of Business Administration, Harvard Business School and T.M. Chang Professor of China Studies, Harvard University

## Management Executive Committee

## Patrick M. Prevost

President and Chief Executive Officer

## Brian A. Berube

Senior Vice President and General Counsel

## Eduardo E. Cordeiro

Executive Vice President and Chief Financial Officer, and President, Americas and Europe, Middle East and Africa Regions

## Nicholas S. Cross

Executive Vice President and
President, Performance Chemicals
and Specialty Fluids Segments

## Roderick C.G. MacLeod

Co-founder and Principal,
Waverley Investments Ltd., and
St. Martins Finance Ltd. (private
equity investment companies)

## Henry F. McCance

Chairman Emeritus, Greylock
Partners (private venture capital firm)

## John K. McGillicuddy

retired Audit Partner, KPMG, LLP (global provider of audit, tax and advisory services)

## Sue H. Rataj

retired Chief Executive,
Petrochemicals, BP plc
(global energy company)

## Sean D. Keohane

Executive Vice President and
President, Reinforcement Materials
Segment

## Yakov Kutsovsky

Senior Vice President, Research and Development, and Chief Technology Officer

## Martin J. O'Neill

Senior Vice President, Safety, Health and Environment

## Robby D. Sisco

Senior Vice President, Human Resources

## Ronaldo H. Schmitz

retired Executive Director,
Deutsche Bank Group (global
financial services provider)

## Lydia W. Thomas

retired President and Chief Executive Officer, Noblis, Inc. (nonprofit science, technology and strategy organization)

## Matthias Wolfganger

retired Chief Executive Officer, Altana AG (specialty chemicals company)

## Mark S. Wrighton

Chancellor, Washington University in St. Louis

## Friedrich von Gottberg

Senior Vice President and President,
Purification Solutions Segment

## Jeff Zhu

Senior Vice President and President,
Asia Pacific Region



# UNITED STATES SECURITIES AND EXCHANGE COMMISSION

# Washington, D.C. 20549

Form 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended September 30, 2015

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from

to

Commission file number 1-5667

## Cabot Corporation

(Exact name of Registrant as specified in its charter)

Delaware

04-2271897

(State or other jurisdiction of

(I.R.S. Employer

incorporation or organization)

Identification No.)

Two Seaport Lane, Suite 1300

Boston, Massachusetts

02210

(Address of Principal Executive Offices)

(Zip Code)

(617) 345-0100

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Name of Each Exchange on Which Registered

Common stock, $1.00 par value per share

New York Stock Exchange

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Act. Yes ☒ No ☐

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the

Act. Yes ☐ No ☒

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ☒

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒

Non-accelerated filer ☐ (Do not check if a smaller reporting company)

Accelerated filer ☐

Smaller reporting company ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange

Act). Yes ☐ No ☒

As of the last business day of the Registrant’s most recently completed second fiscal quarter (March 31, 2015), the aggregate market value of the Registrant’s common stock held by non-affiliates was $2,832,098,400. As of November 19, 2015, there were 62,566,968 shares of the Registrant’s common stock outstanding.

## DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’s definitive proxy statement for its 2016 Annual Meeting of Shareholders are incorporated by reference into Part III of this annual report on Form 10-K.



## TABLE OF CONTENTS

## PART I

ITEM 1. Business ..... 3
ITEM 1A. Risk Factors ..... 10
ITEM 1B. Unresolved Staff Comments ..... 15
ITEM 2. Properties ..... 15
ITEM 3. Legal Proceedings ..... 17
ITEM 4. Mine Safety Disclosures ..... 18
PART II
ITEM 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities ..... 20
ITEM 6. Selected Financial Data ..... 20
ITEM 7. Management's Discussion and Analysis of Financial Condition and Results of Operations ..... 24
ITEM 7A. Quantitative and Qualitative Disclosures About Market Risk ..... 41
ITEM 8. Financial Statements and Supplementary Data ..... 43
ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ..... 95
ITEM 9A. Controls and Procedures ..... 95
ITEM 9B. Other Information ..... 96
PART III
ITEM 10. Directors, Executive Officers and Corporate Governance ..... 97
ITEM 11. Executive Compensation ..... 97
ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters ..... 97
ITEM 13. Certain Relationships and Related Transactions, and Director Independence ..... 97
ITEM 14. Principal Accounting Fees and Services ..... 98
PART IV
ITEM 15. Exhibits, Financial Statement Schedules ..... 98
Signatures ..... 101
Exhibit Index ..... 102



# Information Relating to Forward-Looking Statements

This annual report on Form 10-K contains “forward-looking statements” under the Federal securities laws. These forward-looking statements include statements relating to our expectations regarding our future business performance and overall prospects; demand for our products; the cost savings we expect to achieve from our restructuring plans; when we expect to cease manufacturing operations at our carbon black plant in Merak, Indonesia; the amount expected to be received from the sale of land by our carbon black joint venture in Malaysia; the sufficiency of our cash on hand, cash provided from operations and cash available under our credit and commercial paper facilities to fund our cash requirements; anticipated capital spending, including environmental-related capital expenditures; cash requirements and uses of available cash, including future cash outlays associated with long-term contractual obligations, restructurings, contributions to employee benefit plans, environmental remediation costs and future respirator liabilities; exposure to interest rate and foreign exchange risk; future benefit plan payments we expect to make; future amortization expenses; our expected tax rate for fiscal 2016; our ability to recover deferred tax assets; and the possible outcome of legal and environmental proceedings. From time to time, we also provide forward-looking statements in other materials we release to the public and in oral statements made by authorized officers.

Forward-looking statements are based on our current expectations, assumptions, estimates and projections about Cabot's businesses and strategies, market trends and conditions, economic conditions and other factors. These statements are not guarantees of future performance and are subject to risks, uncertainties, potentially inaccurate assumptions, and other factors, some of which are beyond our control and difficult to predict. If known or unknown risks materialize, or should underlying assumptions prove inaccurate, our actual results could differ materially from past results and from those expressed in the forward-looking statements. Important factors that could cause our actual results to differ materially from those expressed in our forward-looking statements are described in Item 1A in this report.

We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. Investors are advised, however, to consult any further disclosures we make on related subjects in our 10-Q and 8-K reports filed with the Securities and Exchange Commission (the "SEC").

## PART I

## Item 1. Business

## General

Cabot is a global specialty chemicals and performance materials company headquartered in Boston, Massachusetts. Our principal products are rubber and specialty grade carbon blacks, fumed metal oxides, activated carbon, inkjet colorants, aerogel, and cesium formate drilling fluids. Cabot and its affiliates have manufacturing facilities and operations in the United States and over 20 other countries. Cabot’s business was founded in 1882 and incorporated in the State of Delaware in 1960. The terms “Cabot”, “Company”, “we”, and “our” as used in this report refer to Cabot Corporation and its consolidated subsidiaries.

Our strategy is to deliver earnings growth through leadership in performance materials. We intend to achieve this goal by focusing on margin improvement, capacity expansion and emerging market growth, developing new products and businesses and actively managing our portfolio of businesses.

Our products are generally based on technical expertise and innovation in one or more of our three core competencies: making and handling very fine particles; modifying the surfaces of very fine particles to alter their functionality; and designing particles to impart specific properties to a composite. We focus on creating particles with the composition, morphology, surface functionalities and formulations to support our customers' existing and emerging applications.

During fiscal 2015, we realigned our global business segments to improve efficiency and resource prioritization, as well as to enable stronger customer focus. Our four business segments are: Reinforcement Materials; Performance Chemicals; Purification Solutions; and Specialty Fluids. The business segments are discussed in more detail later in this section. Financial information about our business segments appears in Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 7 below (“MD&A”) and in Note V of the Notes to our Consolidated Financial Statements in Item 8 below (“Note V”).

Our internet address is www.cabotcorp.com. We make available free of charge on or through our internet website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 as soon as reasonably practicable after electronically filing such material with, or furnishing it to, the SEC. Information appearing on our website is not a part of, and is not incorporated in, this Annual Report on Form 10-K.



## Reinforcement Materials

## Products

Carbon black is a form of elemental carbon that is manufactured in a highly controlled process to produce particles and aggregates of varied structure and surface chemistry, resulting in many different performance characteristics for a wide variety of applications. Rubber grade carbon blacks are used to enhance the physical properties of the systems and applications in which they are incorporated.

Our rubber blacks products are used in tires and industrial products. Rubber blacks have traditionally been used in the tire industry as a rubber reinforcing agent to increase tread durability and are also used as a performance additive to reduce rolling resistance and improve traction. In industrial products such as hoses, belts, extruded profiles and molded goods, rubber blacks are used to improve the physical performance of the product, including the product's physical strength, fluid resistance, conductivity and resistivity.

## Sales and Customers

Sales of rubber blacks products are made by Cabot employees and through distributors and sales representatives. Sales to three major tire customers represent a material portion of Reinforcement Materials' total net sales and operating revenues. The loss of any of these customers, or a significant reduction in volumes sold to them, could have a material adverse effect on the Segment.

Under appropriate circumstances, we have entered into supply contracts with certain customers, the typical duration of which is one year. Many of these contracts provide for sales price adjustments to account for changes in relevant feedstock indices and, in some cases, changes in other relevant costs (such as the cost of natural gas). In fiscal 2015, approximately half of our rubber blacks volume was sold under these supply agreements. The majority of the volumes sold under these agreements are sold to customers in North America and Europe.

In addition to sales of our rubber blacks products, we have licensed our patented elastomer composites manufacturing process to Manufacture Francaise des Pneumatiques Michelin for their exclusive use in tire applications. This liquid phase process is used to manufacture compounds of carbon black and natural latex rubber that improve abrasion/wear resistance, reduce fatigue and reduce rolling resistance compared to carbon black/natural rubber compounds made by conventional dry mix methods. As consideration, we receive quarterly royalty payments extending through fiscal 2022.

Much of the rubber blacks we sell is used in tires and automotive products and, therefore, our financial results may be affected by the cyclical nature of the automotive industry. However, a large portion of the market for our products is in replacement tires that historically have been less subject to automotive industry cycles.

## Competition

We are one of the leading manufacturers of carbon black in the world. We compete in the manufacture of carbon black primarily with two companies with a global presence and numerous other companies that operate regionally. Competition for products within Reinforcement Materials is based on product performance, quality, reliability, price, service, technical innovation, and logistics. We believe our product differentiation, technological leadership, global manufacturing presence, operations and logistics excellence and customer service provide us with a competitive advantage.

## Raw Materials

The principal raw material used in the manufacture of carbon black is a portion of the residual heavy oils derived from petroleum refining operations, the distillation of coal tars, and the production of ethylene throughout the world. Natural gas is also used in the production of carbon black. Raw material costs generally are influenced by the availability of various types of carbon black feedstock and natural gas, supply and demand of such raw materials, and related transportation costs. Importantly, movements in the market price for crude oil typically affect carbon black feedstock costs.

## Operations

We own, or have a controlling interest in, and operate plants that produce rubber blacks in Argentina, Brazil, Canada, China, Colombia, the Czech Republic, France, Indonesia, Italy, Japan, Mexico, The Netherlands and the United States. Our equity affiliate operates a carbon black plant in Venezuela.



The following table shows our ownership interest as of September 30, 2015 in rubber blacks operations in which we own less than 100% of the common equity:

<table><tr><td>Location</td><td>Percentage Interest</td></tr><tr><td>Shanghai, China</td><td>70% (consolidated subsidiary)</td></tr><tr><td>Tianjin, China</td><td>70% (consolidated subsidiary)</td></tr><tr><td>Xingtai City, China</td><td>60% (consolidated subsidiary)</td></tr><tr><td>Valaske Mezirici (Valmez), Czech Republic</td><td>52% (consolidated subsidiary)</td></tr><tr><td>Cilegon and Merak, Indonesia  \( {}^{(1)} \)</td><td>97% (consolidated subsidiary)</td></tr><tr><td>Valencia, Venezuela</td><td>49% (equity affiliate)</td></tr></table>

(1) The Company intends to cease its manufacturing operations in Merak in January 2016.

## Performance Chemicals

Performance Chemicals is comprised of two businesses: (i) our Specialty Carbons and Formulations business, which manufactures and sells specialty grades of carbon black, specialty compounds and inkjet colorants, and (ii) our Metal Oxides business, which manufactures and sells fumed silica, fumed alumina and dispersions thereof and aerogel. In Performance Chemicals, we design, manufacture and sell materials that deliver performance in a broad range of customer applications across the automotive, construction and infrastructure, inkjet printing, electronics, and consumer products sectors.

## Products

## Specialty Carbons and Formulations Business

Carbon black is a form of elemental carbon that is manufactured in a highly controlled process to produce particles and aggregates of varied structure and surface chemistry, resulting in many different performance characteristics for a wide variety of applications.

Our specialty grades of carbon black are used to impart color, provide rheology control, enhance conductivity and static charge control, provide UV protection, enhance mechanical properties, and provide formulation flexibility through surface treatment. These specialty carbon products are used in a wide variety of applications, such as inks, coatings, cables, pipes, toners and electronics.

Our thermoplastic concentrates and compounds, which we refer to as “specialty compounds”, are derived from our specialty grades of carbon black mixed with polymers and other additives. These products are generally used by plastics formulators in thermoplastic polymer applications, such as cable jacketings, films, fibers, moldings, pipes and sheets, as they are generally easier to handle, mix and disperse for these applications than carbon black alone. In addition, our electrically conductive compound products generally are used to reduce the risk of damage from electrostatic discharge in plastics applications.

Our inkjet colorants are high-quality pigment-based black and color dispersions based on our patented carbon black surface modification technology. The dispersions are used in aqueous inkjet inks to impart color, sharp print characteristics and durability, while maintaining high printhead reliability. These products are used in various inkjet printing applications, including commercial printing, small office/home office and corporate office, and niche applications that require a high level of dispersibility and colloidal stability. Our inkjet inks, which utilize our pigment-based colorant dispersions, are used in the emerging commercial printing segment for digital print.

## Metal Oxides Business

Fumed silica is an ultra-fine, high-purity particle used as a reinforcing, thickening, abrasive, thixotropic, suspending or anti-caking agent in a wide variety of products for the automotive, construction, microelectronics, and consumer products industries. These products include adhesives, sealants, cosmetics, inks, toners, silicone rubber, coatings, polishing slurries and pharmaceuticals. Fumed alumina, also an ultra-fine, high-purity particle, is used as an abrasive, absorbent or barrier agent in a variety of products, such as inkjet media, lighting, coatings, cosmetics and polishing slurries.

Aerogel is a hydrophobic, silica-based particle with a high surface area that is used in a variety of thermal insulation and specialty chemical applications. In the building and construction industry, the product is used in insulative sprayable plasters and composite building products, as well as translucent skylight, window, wall and roof systems for insulating eco-dailylighting applications. In the specialty chemicals industry, the product is used to provide matte finishing, insulating and thickening properties for use in a variety of applications.



## Sales and Customers

Sales of these products are made by Cabot employees and through distributors and sales representatives. In our Specialty Carbons and Formulations business, sales are generally to a broad number of customers. In our Metal Oxides business, sales under long-term contracts with two customers account for a substantial portion of the revenue.

## Competition

We are a leading producer of the products we sell in this segment. We compete in the manufacture of carbon black primarily with two companies with a global presence and several other companies that have a regional presence, some of which export product outside their region. We compete with several companies that produce specialty compounds, primarily in Europe, the Middle East and Asia. Our inkjet colorants and inks are designed to replace traditional pigment dispersions and dyes used in inkjet printing applications. Competitive products for inkjet colorants are organic dyes and other dispersed pigments manufactured and marketed by large chemical companies and small independent producers. For fumed silica, we compete primarily with two companies with a global presence and several other companies which have a regional presence. For aerogel, we compete principally with one other company that produces aerogel products. We also compete with non-aerogel insulation products manufactured by regional companies throughout the world.

Competition for our products is based on product performance, quality, reliability, service, technical innovation and price. We believe our product differentiation, technological leadership, operations excellence and customer service provide us with a competitive advantage.

## Raw Materials

Raw materials for our products are, in general, readily available. The principal raw material used in the manufacture of carbon black is a portion of the residual heavy oils derived from petroleum refining operations, the distillation of coal tars, and the production of ethylene throughout the world. Natural gas is also used in the production of carbon black. These raw material costs generally are influenced by the availability of various types of carbon black feedstock and natural gas, supply and demand of such raw materials, and related transportation costs. Importantly, movements in the market price for crude oil typically affect carbon black feedstock costs. The primary raw materials used for our specialty compounds include carbon black sourced from our carbon black plants, thermoplastic resins and mineral fillers from various sources. Raw materials for inkjet colorants include carbon black sourced from our carbon black plants, organic pigments and other treating agents available from various sources. Raw materials for inkjet inks include pigment dispersions, solvents and other additives. We believe that all raw materials to produce inkjet colorants and inks are in adequate supply.

Raw materials for the production of fumed silica are various chlorosilane feedstocks. We purchase feedstocks and for some customers convert their feedstock to product on a fee-basis (so called “toll conversion”). We also purchase aluminum chloride as feedstock for the production of fumed alumina. We have long-term procurement contracts or arrangements in place for the purchase of fumed silica feedstock, which we believe will enable us to meet our raw material requirements for the foreseeable future. In addition, we buy some raw materials in the spot market to help ensure flexibility and minimize costs. The principal raw materials for the production of aerogel are silica sol and/or sodium silicate.

## Operations

We own, or have a controlling interest in, and operate plants that produce specialty grades of carbon black primarily in China, The Netherlands and the United States. Our specialty compounds are produced in facilities that we own, or have a controlling interest in, located in Belgium, China and the United Arab Emirates. Our inkjet colorants and inks are manufactured at our facility in Haverhill, Massachusetts. We also own, or have a controlling interest in, manufacturing plants that produce fumed metal oxides in the United States, China, the United Kingdom, and Germany and a manufacturing plant that produces aerogel in Frankfurt, Germany. An equity affiliate operates a fumed metal oxides plant in Mettur Dam, India.

The following table shows our ownership interest as of September 30, 2015 in these segment operations in which we own less than 100%:

<table><tr><td>Location</td><td>Percentage Interest</td></tr><tr><td>Tianjin, China (Specialty Carbons and Formulations business)</td><td>90% (consolidated subsidiary)</td></tr><tr><td>Jiangxi Province, China (Metal Oxides business)</td><td>90% (consolidated subsidiary)</td></tr><tr><td>Mettur Dam, India (Metal Oxides business)</td><td>50% (equity affiliate)</td></tr></table>



## Purification Solutions

## Products

Activated carbon is a porous material consisting mainly of elemental carbon treated with heat, steam and/or chemicals to create high internal porosity, resulting in a large internal surface area that resembles a sponge. It is generally produced in two forms, powdered and granular, and is manufactured in different sizes, shapes and levels of purity and using a variety of raw materials for a wide variety of applications. Activated carbon is used to remove contaminants from liquids and gases using a process called adsorption, whereby the interconnected pores of activated carbon trap contaminants.

Our activated carbon products are used for the purification of water, air, food and beverages, pharmaceuticals and other liquids and gases, as either a colorant or a decolorizing agent in the production of products for food and beverage applications and as a chemical carrier in slow release applications. In gas and air applications, one of the uses of activated carbon is for the removal of mercury in flue gas streams. In certain applications, used activated carbon can be reactivated for further use by removing the contaminants from the pores of the activated carbon product. The most common applications for our reactivated carbon are water treatment and food and beverage purification. In addition to our activated carbon production and reactivation, we also provide activated carbon solutions through on-site equipment and services, including delivery systems for activated carbon injection in coal-fired utilities, mobile water filter units and carbon reactivation services.

## Sales and Customers

Sales of activated carbon are made by Cabot employees and through distributors and sales representatives to a broad range of customers, including coal-fired utilities, food and beverage processors, water treatment plants, pharmaceutical companies and catalyst producers. Some of our sales of activated carbon are made under annual contracts or longer-term agreements, particularly in mercury removal applications.

## Competition

We are one of the leading manufacturers of activated carbon in the world. We compete in the manufacture of activated carbon with a number of companies, some of whom have a global presence and others who have a regional or local presence, although not all of these companies manufacture activated carbon for the range of applications for which we sell our products.

Competition for activated carbon and activated carbon equipment and services is based on quality, performance, price and supply-chain stability. We believe our product and application diversity, product differentiation, technological leadership, quality, cost-effective access to raw materials, and scalable manufacturing capabilities provide us with a competitive advantage.

## Raw Materials

The principal raw materials we use in the manufacture of activated carbon are various forms of coal, including lignite, wood and other carbonaceous materials, which are, in general, readily available and we believe we have in adequate supply. We also own a lignite mine that is operated by Caddo Creek Resources Company, LLC, a subsidiary of the North American Coal Company. The mine began operations in November 2014 and supplies our Marshall, Texas facility.

## Operations

We own, or have a controlling interest in, and operate plants that produce activated carbon in the United States, the United Kingdom, The Netherlands and Italy. Our affiliates operate activated carbon plants in Canada and Mexico. The following table shows our ownership interest as of September 30, 2015 in activated carbon operations in which we own less than 100%:

<table><tr><td>Location</td><td>Percentage Interest</td></tr><tr><td>Estevan, Saskatchewan, Canada</td><td>50% (contractual joint venture)</td></tr><tr><td>Atitalaquia, Hidalgo, Mexico</td><td>49% (equity affiliate)</td></tr></table>

## Specialty Fluids

## Products

Our Specialty Fluids segment principally produces and markets cesium formate as a drilling and completion fluid for use primarily in high pressure and high temperature oil and gas well construction. Cesium formate products are solids-free, high-density fluids that have a low viscosity, enabling safe and efficient well construction and workover operations. The fluid is resistant to high temperatures, minimizes damage to producing reservoirs and is readily biodegradable in accordance with the testing guidelines set by the Organization for Economic Cooperation and Development. In a majority of applications, cesium formate is blended with other formates or products. We also manufacture and sell fine cesium chemicals that are used in a wide range of applications, including catalysts and brazing fluxes.



## Sales, Rental and Customers

Sales of our cesium formate products are made to oil and gas operating companies directly by Cabot employees and sales representatives and indirectly through oil field service companies. We generally rent cesium formate to our customers for use in drilling operations on a short-term basis and on occasion make direct sales of cesium formate outside of the rental process. After completion of a job under our rental process, the customer returns the remaining fluid to Cabot and it is reprocessed for use in subsequent well operations. Any fluid that is lost during use and not returned to Cabot is paid for by the customer.

A large portion of our fluids has been used for drilling and completion of wells in the North Sea with a limited number of customers, where we have supplied cesium formate-based fluids for both reservoir drilling and completion activities on large gas and condensate field projects in the Norwegian Continental Shelf. We continue to look for opportunities to expand the use of our fluids to drilling operations outside of the North Sea, particularly in Asia and the Middle East.

## Competition

Formate fluids compete mainly with traditional drilling fluid technologies. Competition in the well fluids business is based on product performance, quality, reliability, service, technical innovation, price, and proximity of inventory to customers' drilling operations. We believe our commercial strengths include our unique product offerings and their performance, and our customer service.

## Raw Materials

The principal raw material used in this business is polluicite (cesium ore), of which we own a substantial portion of the world's known polluicite reserves. In November 2015, we successfully completed a development project at our mine in Manitoba, Canada. We believe we have sufficient raw material to enable us to continue to supply cesium products for the foreseeable future, based on our anticipated consumption. We are not currently mining at the site and will assess options to access additional reserves in the mine, various technologies to augment our cesium supply and alternative sources of ore as demand for our cesium products warrants.

Most jobs for which cesium formate is used require a large volume of the product. Accordingly, the Specialty Fluids business maintains a large inventory of fluid.

## Operations

Our mine and cesium formate manufacturing facility are located in Manitoba, Canada, and we have fluid blending and reclamation facilities in Aberdeen, Scotland and in Bergen, Norway. In addition, we warehouse fluid at various locations around the world to support existing and potential operations.

## Patents and Trademarks

We own and are a licensee of various patents, which expire at different times, covering many of our products as well as processes and product uses. Although the products made and sold under these patents and licenses are important to Cabot, the loss of any particular patent or license would not materially affect our business, taken as a whole. We sell our products under a variety of trademarks we own and take reasonable measures to protect them. While our trademarks are important to Cabot, the loss of any one of our trademarks would not materially affect our business, taken as a whole.

## Seasonality

Our businesses are generally not seasonal in nature, although we may experience some regional seasonal declines during holiday periods and some weather-related seasonality in Purification Solutions.

## Backlog

We do not consider backlog to be a significant indicator of the level of future sales activity. In general, we do not manufacture our products against a backlog of orders. Production and inventory levels are based on the level of incoming orders as well as projections of future demand. Therefore, we believe that backlog information is not material to understanding our overall business and is not a reliable indicator of our ability to achieve any particular level of revenue or financial performance.

## Employees

As of September 30, 2015, we had approximately 4,600 employees. Some of our employees in the United States and abroad are covered by collective bargaining or similar agreements. We believe that our relations with our employees are generally satisfactory.



## Research and Development

Cabot develops new and improved products and higher efficiency processes through Company-sponsored research and technical service activities, including those initiated in response to customer requests. Our expenditures for such activities generally are spread among our businesses and are shown in the consolidated statements of operations. Further discussion of our research and technical expenses incurred in each of our last three fiscal years appears in MD&A in Item 7 below.

## Safety, Health and Environment ("SH&E")

Cabot has been named as a potentially responsible party under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (the "Superfund law") and comparable state statutes with respect to several sites primarily associated with our divested businesses. (See "Legal Proceedings" below.) During the next several years, as remediation of various environmental sites is carried out, we expect to spend against our $16 million environmental reserve for costs associated with such remediation. Adjustments are made to the reserve based on our continuing analysis of our share of costs likely to be incurred at each site. Inherent uncertainties exist in these estimates due to unknown conditions at the various sites, changing governmental regulations and legal standards regarding liability, and changing technologies for handling site investigation and remediation. While the reserve represents our best estimate of the costs we expect to incur, the actual costs to investigate and remediate these sites may exceed the amounts accrued in the environmental reserve. While it is always possible that an unusual event may occur with respect to a given site and have a material adverse effect on our results of operations in a particular period, we do not believe that the costs relating to these sites, in the aggregate, are likely to have a material adverse effect on our consolidated financial position. Furthermore, it is possible that we may also incur future costs relating to environmental liabilities not currently known to us or as to which it is currently not possible to make an estimate.

Our ongoing operations are subject to extensive federal, state, local, and foreign laws, regulations, rules, and ordinances relating to safety, health, and environmental matters (“SH&E Requirements”). These SH&E Requirements include requirements to obtain and comply with various environmental-related permits for constructing any new facilities and operating all of our existing facilities and for product registrations. We have expended and will continue to expend considerable sums to construct, maintain, operate, and improve facilities for safety, health and environmental protection and to comply with SH&E Requirements. We spent approximately $17 million in environmental-related capital expenditures at existing facilities in fiscal 2015 and anticipate spending approximately $34 million for such matters in fiscal 2016.

In recognition of the importance of compliance with SH&E Requirements to Cabot, our Board of Directors has a Safety, Health, and Environmental Affairs Committee. The Committee, which is comprised of independent directors, meets at least three times a year and provides oversight and guidance to Cabot's safety, health and environmental management programs. In particular, the Committee reviews Cabot's environmental reserve, safety, health and environmental risk assessment and management processes, environmental and safety audit reports, performance metrics, performance as benchmarked against industry peer groups, assessed fines or penalties, site security and safety issues, health and environmental training initiatives, and the SH&E budget. The Committee also consults with our outside and internal advisors regarding management of Cabot's safety, health and environmental programs.

The International Agency for Research on Cancer (“IARC”) classifies carbon black as a Group 2B substance (known animal carcinogen, possible human carcinogen). We have communicated IARC’s classification of carbon black to our customers and employees and have included that information in our safety data sheets and elsewhere, as appropriate. We continue to believe that the available evidence, taken as a whole, indicates that carbon black is not carcinogenic to humans, and does not present a health hazard when handled in accordance with good housekeeping and safe workplace practices as described in our safety data sheets.

REACH (Registration, Evaluation and Authorization of Chemicals), the European Union (“EU”) regulatory framework for chemicals developed by the European Commission (“EC”), applies to all chemical substances produced or imported into the EU in quantities greater than one metric ton a year. Manufacturers or importers of these chemical substances are required to submit specified health, safety, risk and use information about the substance to the European Chemical Agency. We have completed all required registrations under REACH to date and will continue to complete the registrations under REACH for our products in accordance with future registration deadlines. We will also continue to work with the manufacturers and importers of our raw materials, including our feedstocks, to ensure their registration prior to the applicable deadlines. In addition, the EC has adopted a harmonized definition of “nanomaterial” to be used in the EU to identify materials for which special provisions may apply, such as risk assessment and ingredient labeling. The EC definition is broad and applies to many of our existing products, including carbon black, fumed silica and alumina. Country-specific product registration and assessment programs have been implemented in some countries and are being developed by others. We will continue to address these requirements.



Environmental agencies worldwide are increasingly implementing regulations and other requirements resulting in more restrictive air emission limits globally, particularly as they relate to nitrogen oxide, sulphur dioxide and particulate matter emissions. In addition, global efforts to reduce greenhouse gas emissions impact the carbon black and activated carbon industries as carbon dioxide is emitted from those manufacturing processes. The EU Emission Trading Scheme applies to our carbon black facilities and one activated carbon facility in Europe. In China, two of our carbon black facilities are participating in an emissions trading regional pilot program associated with the development of a national trading program. In the U.S., some of our facilities are required to report their greenhouse gas emissions, but are not currently subject to programs requiring trading or emission controls. We generally expect to purchase emission credits where necessary to respond to allocation shortfalls. In addition, air emission regulations may be adopted in the future in other regions and countries where we operate which could have an impact on our operations.

A number of organizations and regulatory agencies have become increasingly focused on the issue of water scarcity and water quality, particularly in certain geographic regions. We are engaged in various activities to promote water conservation and wastewater recycling. The costs associated with these activities are not expected to have a material adverse effect on our operations.

Various U.S. agencies and international bodies have adopted security requirements applicable to certain manufacturing and industrial facilities and marine port locations. These security-related requirements involve the preparation of security assessments and security plans in some cases, and in other cases the registration of certain facilities with specified governmental authorities. We closely monitor all security-related regulatory developments and believe we are in compliance with all existing requirements. Compliance with such requirements is not expected to have a material adverse effect on our operations.

## Foreign and Domestic Operations and Export Sales

A significant portion of our revenues and operating profits is derived from overseas operations. The profitability of our segments is affected by fluctuations in the value of the U.S. dollar relative to foreign currencies. (See MD&A and the Geographic Information portion of Note V for further information relating to sales and long-lived assets by geographic area.) Currency fluctuations, nationalization and expropriation of assets are risks inherent in international operations. We have taken steps we deem prudent in our international operations to diversify and otherwise to protect against these risks, including the use of foreign currency financial instruments to reduce the risk associated with changes in the value of certain foreign currencies compared to the U.S. dollar. (See the risk management discussion contained in “Quantitative and Qualitative Disclosures About Market Risk” in Item 7A below and Note L of the Notes to the Company’s Consolidated Financial Statements).

## Item 1A. Risk Factors

In addition to factors described elsewhere in this report, the following are important factors that could cause our actual results to differ materially from those expressed in our forward-looking statements. The risks described below are not the only risks we face. Additional risks not presently known to us or that we currently deem immaterial may also impair our business operations and financial results.

## Negative or uncertain worldwide or regional economic conditions may adversely impact our business.

Our operations and performance are affected by worldwide and regional economic conditions. Continued uncertainty or a deterioration in the economic conditions affecting the businesses to which, or geographic areas in which, we sell products could reduce demand for our products. We may also experience pricing pressure on products and services, which could decrease our revenues and have an adverse effect on our financial condition and cash flows. In addition, during periods of economic uncertainty, our customers may temporarily pursue inventory reduction measures that exceed declines in the actual underlying demand. Our businesses are sensitive to industry capacity utilization, particularly Reinforcement Materials and Purification Solutions. As a result, pricing tends to fluctuate when capacity utilization changes occur, which could affect our financial performance.

As a chemical manufacturing company, our operations are subject to operational risks and have the potential to cause environmental or other damage as well as personal injury, which could adversely affect our business, results of operations and cash flows.

The operation of a chemical manufacturing business as well as the sale and distribution of chemical products involves safety, health and environmental risks. For example, the production and/or processing of carbon black, fumed metal oxides, aerogel, activated carbon and other chemicals involve the handling, transportation, manufacture or use of certain substances or components that may be considered toxic or hazardous. Our manufacturing processes and the transportation of chemical products entail risks such as leaks, fires, explosions, toxic releases, mechanical failures or unscheduled downtime. If operational risks materialize, they could result in injury or loss of life, damage to the environment, or damage to property. In addition, the occurrence of material



operating problems at our facilities may result in loss of production, which, in turn, may make it difficult for us to meet customer needs. Accordingly, these events and their consequences could negatively impact the Company’s results of operations and cash flows, both during and after the period of operational difficulties, and could harm our reputation.

A significant adverse change in a customer relationship or the failure of a customer to perform its obligations under agreements with us could harm our business or cash flows.

Our success in strengthening relationships and growing business with our largest customers and retaining their business over extended time periods could affect our future results. We have a group of key customers across our businesses that together represent a significant portion of our total net sales and operating revenues. The loss of any of our important customers, or a significant reduction in volumes sold to them, could adversely affect our results of operations until such business is replaced or any temporary disruption ends. Any deterioration in the financial condition of any of our customers that impairs our customers' ability to make payments to us also could increase our uncollectible receivables and could affect our future results and financial condition.

Our restructuring activities and cost saving initiatives may not achieve the results we anticipate.

We have undertaken and expect to continue to undertake cost reduction initiatives and organizational restructurings to improve operating efficiencies, optimize our asset base and generate cost savings. For example, we have recently undertaken a restructuring plan to reduce our cost structure. We cannot be certain that we will be able to complete these initiatives as planned or without business interruption, or that the estimated operating efficiencies or cost savings from such activities will be fully realized or maintained over time.

Volatility in the price of energy and raw materials could impact our margins and working capital.

Our manufacturing processes consume significant amounts of energy and raw materials, the costs of which are subject to worldwide supply and demand as well as other factors beyond our control. Dramatic increases in such costs or decreases in the availability of raw materials at acceptable costs could have an adverse effect on our results of operations. For example, movements in the market price for crude oil typically affect carbon black feedstock costs. Significant movements in the market price for crude oil tend to create volatility in our carbon black feedstock costs, which can affect our working capital and results of operations. Certain of our carbon black supply contracts contain provisions that adjust prices to account for changes in a relevant feedstock price index. We attempt to offset the effects of increases in raw material costs through selling price increases in our non-contract sales, productivity improvements and cost reduction efforts. Success in offsetting increased raw material costs with price increases is largely influenced by competitive and economic conditions and could vary significantly depending on the segment served. Such increases may not be accepted by our customers, may not be sufficient to compensate for increased raw material and energy costs or may decrease demand for our products and our volume of sales. If we are not able to fully offset the effects of increased raw material or energy costs, it could have a significant impact on our financial results. Rapid declines in energy and raw material costs can also negatively impact our financial results, as such changes can negatively affect the returns we receive on our energy centers and yield improvement investments, and may negatively impact our contract pricing adjustments. In addition, we use a variety of feedstock indices in our supply contracts to adjust our prices for changes in raw materials costs. Depending on feedstock markets and our choice of feedstocks, the indices we use in our supply contracts may not precisely track our actual costs. This could result in an incongruity between our contract pricing adjustments and changes in our actual feedstock costs, which can affect our margins.

The strategic growth plan of the mercury removal products portion of our Purification Solutions segment relies significantly on the enforcement of environmental laws and regulations, and if our assumptions about future sales and profitability prove incorrect, we may be required to impair certain assets.

The strategic growth plan for the mercury removal products portion of our Purification Solutions segment relies significantly upon the enforcement of environmental laws and regulations, particularly those that would require industrial facilities to reduce the quantity of air pollutants they release. In particular, we expect demand for our activated carbon products to increase as coal fired utilities in the U.S. enhance their emission control systems in order to comply with the U.S. Mercury and Air Toxics Standards (MATS), which sets forth federal mercury emission levels. The implementation period for the MATS regulation began in April 2015, although state permitting agencies that enforce these standards were authorized to allow a one-year extension of time for compliance. In addition, the MATS regulation has been subject to legal challenge, and in June, 2015, the U.S. Supreme Court held that the EPA unreasonably failed to consider costs in determining whether it is necessary and appropriate to regulate hazardous air pollutants, including mercury, emitted by coal-fired utilities and remanded the case back to the U.S. Court of Appeals for the District of Columbia Circuit for further proceedings. Pending these legal proceedings, the MATS regulation remains in effect and utilities are required to comply with these emission regulations unless they obtained an extension. However, there are a number of possible outcomes of the U.S. Court of Appeals' current review, ranging from the current rule staying in place to a significant multi-year delay in the time when compliance is required, if at all. In our assumptions about the future sales and profitability of the mercury removal



products portion of our Purification Solutions segment, we have assumed an approximate two year delay in the time within which compliance with MATS will be required. If our assumptions concerning sales volumes or margins are incorrect because of a change in the implementation of or requirements under MATS as a result of the Court’s review or otherwise, our actual results for our activated carbon business could be less than expected, which could lead to an impairment of certain assets.

Our mining operations have the potential to cause safety issues, including those that could result in significant personal injury.

We own two mines, a cesium mine in Manitoba, Canada, a portion of which is located under Bernic Lake, and an above-ground lignite mine, which is located close to our Marshall, Texas facility and operated by a subsidiary of The North American Coal Company. Mining operations by their nature are activities that involve a high level of uncertainty and are often affected by risks and hazards outside of our control. At our lignite mine, the risks are primarily operational risks associated with the maintenance and operation of the heavy equipment required to dig and haul the lignite, and risks relating to lower than expected lignite quality or recovery rates. Our underground mine in Manitoba is subject to a number of risks, including industrial accidents, unexpected geological conditions, fall of ground accidents or structural collapses, which, in the case of our cesium mine, could lead to flooding, and lower than expected or quality, ore grades or recovery rates. In 2013, following a fall of ground in a portion of the mine that contains significant cesium reserves, we implemented additional safety measures and added several types of monitoring devices in the mine. Since that time, the monitoring devices have indicated good structural stability in the mine, however, the structural stability may change at any time and there is a possibility of further deterioration and flooding of this mine. In November 2015, we successfully completed a development project at our mine in Manitoba, Canada and we are not currently mining at the site. The failure to adequately manage these risks could result in significant personal injury, loss of life, damage to mineral properties, production facilities or mining equipment, damage to the environment, delays in or reduced production, and potential legal liabilities.

Any failure to realize benefits from acquisitions, alliances or joint ventures could adversely affect future financial results.

Attainment of our strategic plan objectives requires, in part, strategic acquisitions or joint ventures intended to complement or expand our businesses globally or add product technology, or both. The success of acquisitions of businesses, new technologies and products, or arrangements with third parties is not always predictable and we may not be successful in realizing our objectives as anticipated. We may not be able to integrate any acquired businesses successfully into our existing businesses, make such businesses profitable, or realize anticipated cost savings or synergies, if any, from these acquisitions, which could adversely affect our business results.

Plant capacity expansions and site development projects may be delayed and/or not achieve the expected benefits.

Our ability to complete capacity expansions and other site development projects as planned may be delayed or interrupted by the need to obtain environmental and other regulatory approvals, unexpected cost increases, availability of labor and materials, unforeseen hazards such as weather conditions, and other risks customarily associated with construction projects. Moreover, the cost of these activities could have a negative impact on the financial performance of the relevant business, and in the case of capacity expansion projects, until capacity utilization at the particular facility is sufficient to absorb the incremental costs associated with the expansion. In addition, our ability to expand capacity in emerging regions depends in part on economic and political conditions in these regions and, in some cases, on our ability to establish operations, construct additional manufacturing capacity or form strategic business alliances.

An interruption in our operations as a result of fence-line arrangements could disrupt our manufacturing operations and adversely affect our financial results.

At certain of our facilities we have fence-line arrangements with adjacent third party manufacturing operations (“fence-line partners”), who provide raw materials for our manufacturing operations and/or take by-products generated from our operations. Accordingly, any unplanned disruptions or curtailments in a fence-line partner’s production facilities that impacts their ability to supply us with raw materials or to take our manufacturing by-products could disrupt our manufacturing operations or cause us to incur increased operating costs to mitigate such disruption.

We are exposed to political or country risk inherent in doing business in some countries.

Sales outside of the U.S. constituted a majority of our revenues in fiscal 2015. Although much of our international business is currently in regions where the political and economic risk levels and established legal systems are similar to those in the U.S., we also conduct business in countries that have less stable legal systems and financial markets, and potentially more corrupt business environments than the U.S. Our operations in some countries may be subject to the following risks: changes in the rate of economic growth; unsettled political or economic conditions; possible expropriation or other governmental actions; corruption by government officials and other third parties; social unrest, war, terrorist activities or other armed conflict; confiscatory taxation or other adverse tax policies; deprivation of contract rights; trade regulations affecting production, pricing and marketing of products; reduced



protection of intellectual property rights; restrictions on the repatriation of income or capital; exchange controls; inflation; currency fluctuations and devaluation; the effect of global health, safety and environmental matters on economic conditions and market opportunities; and changes in financial policy and availability of credit. We have an equity method investment in Venezuela, a country that has established rigid controls over the ability of foreign companies to repatriate cash and which has effectively devalued its currency in the past. Such exchange controls could potentially impact our ability, in both the short and long term, to recover both the cost of our investment and earnings from that investment.

## We face competition from other specialty chemical companies.

We operate in a highly competitive marketplace. Our ability to compete successfully depends in part upon our ability to maintain a superior technological capability and to continue to identify, develop and commercialize new and innovative, high value-added products for existing and future customers. Increased competition from existing or newly developed products offered by our competitors or companies whose products offer a similar functionality as our products and could be substituted for our products, may negatively affect demand for our products. In addition, actions by our competitors could affect our ability to maintain or raise prices, successfully enter new markets or maintain or grow our market position.

## Litigation or legal proceedings could expose us to significant liabilities and thus negatively affect our financial results.

As more fully described in “Item 3—Legal Proceedings”, we are a party to or the subject of lawsuits, claims, and proceedings, including, but not limited to, those involving environmental, and health and safety matters as well as product liability and personal injury claims relating to asbestosis, silicosis, and coal worker’s pneumoconiosis. We are also a potentially responsible party in various environmental proceedings and remediation matters wherein substantial amounts are at issue. Adverse rulings, judgments or settlements in pending or future litigation (including liabilities associated with respirator claims) or in connection with environmental remediation activities could adversely affect our financial results or cause our results to differ materially from those expressed or forecasted in any forward-looking statements.

## Fluctuations in foreign currency exchange and interest rates could affect our financial results.

We earn revenues, pay expenses, own assets and incur liabilities in countries using currencies other than the U.S. dollar. In fiscal 2015, we derived a majority of our revenues from sales outside the U.S. Because our consolidated financial statements are presented in U.S. dollars, we must translate revenues, income and expenses, as well as assets and liabilities, into U.S. dollars at exchange rates in effect during or at the end of each reporting period. Therefore, increases or decreases in the value of the U.S. dollar against other currencies in countries where we operate will affect our results of operations and the value of balance sheet items denominated in foreign currencies. Due to the geographic diversity of our operations, weaknesses in some currencies might be offset by strengths in others over time. In addition, we are exposed to adverse changes in interest rates. We manage both these risks through normal operating and financing activities and, when deemed appropriate, through the use of derivative instruments as well as foreign currency debt. We cannot be certain, however, that we will be successful in reducing the risks inherent in exposures to foreign currency and interest rate fluctuations.

There are also instances where we have direct current exposures to foreign currency movements because settlement back into a different currency is intended. These situations can have a direct impact on our cash flows.

## Our tax rate is dependent upon a number of factors, a change in any of which could impact our future tax rates and net income.

Our future tax rates may be adversely affected by a number of factors, including changes in tax laws or the interpretation of such tax laws; changes in the estimated realization of our net deferred tax assets; the jurisdictions in which profits are determined to be earned and taxed; the repatriation of non-U.S. earnings for which we have not previously provided for U.S. income and non-U.S. withholding taxes; adjustments to estimated taxes upon finalization of various tax returns; increases in expenses that are not deductible for tax purposes, including impairment of goodwill in connection with acquisitions; changes in available tax credits; and the resolution of issues arising from tax audits with various tax authorities. Losses for which no tax benefits can be recorded could materially impact our tax rate and its volatility from one quarter to another. Any significant change in our jurisdictional earnings mix or in the tax laws in those jurisdictions could impact our future tax rates and net income in those periods.

## We may be subject to information technology systems failures, network disruptions and breaches of data security.

We depend on integrated information systems to conduct our business. Information technology systems failures, including risks associated with upgrading our systems or in successfully integrating information technology and other systems in connection with the integration of businesses we acquire, network disruptions and breaches of data security could disrupt our operations by impeding our processing of transactions, our ability to protect customer or company information and our financial reporting. Our computer systems, including our back-up systems, could be damaged or interrupted by power outages, computer and telecommunications failures, computer viruses, internal or external security breaches, events such as fires, earthquakes, floods,



tornadoes and hurricanes, and/or errors by our employees. Although we have taken steps to address these concerns by implementing sophisticated network security and internal control measures and back-up systems at multiple sites, there can be no assurance that a system failure or data security breach will not have a material adverse effect on our financial condition and results of operations.

Our operations are subject to extensive safety, health and environmental requirements, which could increase our costs and/or reduce our profit.

Our ongoing operations are subject to extensive federal, state, local and foreign laws, regulations, rules and ordinances relating to safety, health and environmental matters, many of which provide for substantial monetary fines and criminal sanctions for violations. These include requirements to obtain and comply with various environmental-related permits for constructing any new facilities and operating all of our existing facilities, and, in certain geographic areas, to pay emissions-related fees based on certain emissions levels. The enactment of new environmental laws and regulations and/or the more aggressive interpretation of existing requirements could require us to incur significant costs for compliance or capital improvements or limit our current or planned operations, any of which could have a material adverse effect on our earnings or cash flow. We attempt to offset the effects of these compliance costs through price increases, productivity improvements and cost reduction efforts. Success in offsetting any such increased regulatory costs is largely influenced by competitive and economic conditions and could vary significantly depending on the segment served. Such increases may not be accepted by our customers, may not be sufficient to compensate for increased regulatory costs or may decrease demand for our products and our volume of sales. See “Item 3 Legal Proceedings—Environmental Proceedings”.

Regulations requiring a reduction of greenhouse gas emissions may impact our carbon black and activated carbon operations.

Global efforts to reduce greenhouse gas emissions impact the carbon black and activated carbon industries as carbon dioxide is emitted from those manufacturing processes. The European Commission’s Emissions Trading Scheme applies to our carbon black facilities and one of our activated carbon facilities in Europe, and we generally expect to purchase emission credits where necessary to respond to allocation shortfalls. However, if our carbon black or activated carbon operations generate more carbon dioxide than our allocations permit, the cost to purchase allocation credits at that time may be unacceptable to us. There are also regulatory developments in other regions and countries, including the U.S., Canada, China and Brazil, regarding greenhouse gas emission reduction programs. Those programs have not yet been fully defined and their potential impact on our manufacturing operations or financial results cannot be estimated at this time.

The money we spend developing new businesses and technologies may not result in a proportional increase in our revenues or profits.

We cannot be certain that the costs we incur investing in new businesses and technologies will result in a proportional increase in revenues or profits. In addition, the timely commercialization of products that we are developing may be disrupted or delayed by manufacturing or other technical difficulties, market acceptance or insufficient market size to support a new product, competitors' new products, and difficulties in moving from the experimental stage to the production stage. These disruptions or delays could affect our future business results.

The reduction or elimination of tariffs placed on U.S. imports of Chinese activated carbon could have a material adverse effect on our Purification Solutions segment.

Purification Solutions faces pressure and competition in its U.S. markets from low-priced imports of activated carbon products that are frequently sold at less than fair value in the U.S. If the amounts of these low-priced imports increase, especially if they are sold at less than fair value, our sales of competing products could decline, which could have an adverse effect on the earnings of Purification Solutions. In addition, sales of these low-priced imports may negatively impact our pricing. To limit these activities, regulators in the U.S. have enacted antidumping duties on steam activated carbon products that are set to expire in 2017, subject to provisions for renewal. The amount of these antidumping duties are reviewed annually, and the lower the tariff, the less effective they may be in reducing the volume of low-priced activated carbon imports in the U.S., which could negatively effect demand or pricing for our products.

The continued protection of our patents, trade secrets and other proprietary intellectual property rights are important to our success.

Our patents, trade secrets and other intellectual property rights are important to our success and competitive position. We own various patents and other intellectual property rights in the U.S. and other countries covering many of our products, as well as processes and product uses. Where we believe patent protection is not appropriate or obtainable, we rely on trade secret laws and practices to protect our proprietary technology and processes, such as physical security, limited dissemination and access and



confidentiality agreements with our employees, customers, consultants, business partners, potential licensees and others to protect our trade secrets and other proprietary information. However, trade secrets can be difficult to protect and the protective measures we have put in place may not prevent disclosure or unauthorized use of our proprietary information or provide an adequate remedy in the event of misappropriation or other violations of our proprietary rights. In addition, we are a licensee of various patents and intellectual property rights belonging to others in the U.S. and other countries. Because the laws and enforcement mechanisms of some countries may not allow us to protect our proprietary rights to the same extent as we are able to do in the U.S., the strength of our intellectual property rights will vary from country to country.

Irrespective of our proprietary intellectual property rights, we may be subject to claims that our products, processes or product uses infringe the intellectual property rights of others. These claims, even if they are without merit, could be expensive and time consuming to defend and if we were to lose such claims, we could be enjoined from selling our products or using our processes and/or be subject to damages, or be required to enter into licensing agreements requiring royalty payments and/or use restrictions. Licensing agreements may not be available to us, or if available, may not be available on acceptable terms.

## Natural disasters could affect our operations and financial results.

We operate facilities in areas of the world that are exposed to natural hazards, such as floods, windstorms and earthquakes. Such events could disrupt our supply of raw materials or otherwise affect production, transportation and delivery of our products or affect demand for our products.

## Item 1B. Unresolved Staff Comments

None.

## Item 2. Properties

Cabot’s corporate headquarters are in leased office space in Boston, Massachusetts. We also own or lease office, manufacturing, storage, distribution, marketing and research and development facilities in the United States and in foreign countries. The locations of our principal manufacturing and/or administrative facilities are set forth in the table below. Unless otherwise indicated, all the properties are owned.

<table><tr><td>Location by Region</td><td>Reinforcement Materials</td><td>Performance Chemicals</td><td>Purification Solutions</td><td>Specialty Fluids</td></tr><tr><td>Americas Region</td><td></td><td></td><td></td><td></td></tr><tr><td>Alpharetta, GA* \( ^{(1)} \)</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Tuscola, IL</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Canal, LA</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Ville Platte, LA</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Billerica, MA</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Haverhill, MA</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Midland, MI</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Pryor, OK</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Marshall, TX</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Pampa, TX</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Campana, Argentina</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Maua, Brazil</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Sao Paulo, Brazil* \( ^{(1)} \)</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Cartagena, Colombia</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Lac du Bonnet, Manitoba*</td><td></td><td></td><td></td><td>X</td></tr><tr><td>Altamira, Mexico</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Sarnia, Ontario</td><td>X</td><td>X</td><td></td><td></td></tr></table>

(1) Business service center

* Leased premises

** Building(s) owned by Cabot on leased land



<table><tr><td>Location by Region</td><td>Reinforcement Materials</td><td>Performance Chemicals</td><td>Purification Solutions</td><td>Specialty Fluids</td></tr><tr><td>EMEA Region</td><td></td><td></td><td></td><td></td></tr><tr><td>Loncín, Belgium</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Pepinster, Belgium</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Valasske Mezirici (Valmez), Czech Republic**</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Port Jerome, France**</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Frankfurt, Germany*</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Rheinfelden, Germany</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Ravenna, Italy (2 plants)</td><td>X</td><td></td><td>X</td><td></td></tr><tr><td>Riga, Latvia*(1)</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Bergen, Norway*</td><td></td><td></td><td></td><td>X</td></tr><tr><td>Schaffhausen, Switzerland*</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Botlek, The Netherlands**</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Amersfoort, The Netherlands*</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Klazienaveen, The Netherlands</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Zaandam, The Netherlands</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Dubai, United Arab Emirates*</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Purton, United Kingdom (England)</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Aberdeen, United Kingdom (Scotland)*</td><td></td><td></td><td></td><td>X</td></tr><tr><td>Glasgow, United Kingdom (Scotland)</td><td></td><td></td><td>X</td><td></td></tr><tr><td>Barry, United Kingdom (Wales)**</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Asia Pacific Region</td><td></td><td></td><td></td><td></td></tr><tr><td>Jiangxi Province, China**</td><td></td><td>X</td><td></td><td></td></tr><tr><td>Tianjin, China**</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Shanghai, China*(1)</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Shanghai, China**(plant)</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Xingtai City, China**</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Mumbai, India*</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Cilegon, Indonesia**</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Jakarta, Indonesia*(1)</td><td>X</td><td>X</td><td></td><td></td></tr><tr><td>Merak, Indonesia(2)</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Chiba, Japan</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Shimonoseki, Japan**</td><td>X</td><td></td><td></td><td></td></tr><tr><td>Tokyo, Japan*(1)</td><td>X</td><td>X</td><td>X</td><td>X</td></tr><tr><td>Port Dickson, Malaysia**</td><td>X</td><td></td><td></td><td></td></tr></table>

(1) Business service center

(2) The Company intends to cease its manufacturing operations in Merak in January 2016.

 \( ^{*} \)  Leased premises

** Building(s) owned by Cabot on leased land

We conduct research and development for our various businesses primarily at facilities in Billerica, MA; Amersfoort, The Netherlands; Pampa, TX; Pepinster, Belgium; Frankfurt and Rheinfelden, Germany; and Shanghai, China.

Our existing manufacturing plants will generally have sufficient production capacity to meet current requirements and expected near-term growth. These plants are generally well maintained, in good operating condition and suitable and adequate for their intended use. Our administrative offices and other facilities are generally suitable and adequate for their intended purposes.



## Item 3. Legal Proceedings

Cabot is a party in various lawsuits and environmental proceedings wherein substantial amounts are claimed. The following is a description of the significant proceedings pending on September 30, 2015, unless otherwise specified.

## Environmental Proceedings

In November 2013, Cabot entered into a Consent Decree with the United States Environmental Protection Agency (“EPA”) and the Louisiana Department of Environmental Quality (“LDEQ”) regarding Cabot’s three carbon black manufacturing facilities in the United States. This settlement is related to EPA’s national enforcement initiative focused on the U.S. carbon black manufacturing sector alleging non-compliance with certain regulatory and permitting requirements under The Clean Air Act, including the New Source Review (“NSR”) construction permitting requirements. Pursuant to this settlement, which was approved by the U.S. District Court for the Western District of Louisiana in March, 2014, Cabot paid a combined $975,000 civil penalty to EPA and LDEQ, agreed to fund environmental mitigation projects in the three communities where the plants are located for a total cost of approximately $450,000, two of which have been completed, and will install technology controls for sulfur dioxide and nitrogen oxide. We expect that the capital costs to install these controls will total approximately $100 million and be incurred through calendar year 2020. In addition, Cabot has agreed to certain best management practices (“BMPS”) to control emissions of particulate matter at the three locations. Continental Carbon settled with EPA on similar terms in 2015. It is expected that other carbon black manufacturers will also be required to install technology controls and agree to adopt BMPS at their U.S. facilities in connection with this initiative and are also likely to pay a civil penalty and fund mitigation projects.

In 1986, Cabot sold a beryllium manufacturing facility in Reading, Pennsylvania to NGK Metals, Inc. ("NGK"). In doing so, we agreed to share with NGK the costs of certain environmental remediation of the Reading plant site. After the sale, the EPA issued an order to NGK pursuant to the Resource Conservation and Recovery Act ("RCRA") requiring NGK to address soil and groundwater contamination at the site. Soil remediation at the site has been completed and the groundwater remediation activities are ongoing pursuant to the RCRA order. We are contributing to the costs of the groundwater remediation activities pursuant to the cost-sharing agreement with NGK. Cabot and NGK also pursued various legal claims against the U.S. for cost recovery and participation in future remediation activities based on the U.S.'s previous involvement at the site and contractual arrangements, beginning in World War II and continuing thereafter. Those claims were recently settled by the U.S. Government with a cash payment toward past costs and a commitment to pay a designated share of future costs to be incurred at the site.

We continue to perform certain sampling and remediation activities at a former pine tar manufacturing site in Gainesville, Florida that we sold in the 1960s. Those activities are pursuant to a formal Record of Decision and 1991 Consent Decree with EPA. Cabot installed a groundwater treatment system at the site in the early 1990s, and that system is still in operation. We have also been requested by EPA and other stakeholders to carry out various other additional work at the site, the scope of which has yet to be determined. We continue to work cooperatively with EPA, the Florida Department of Environmental Protection and the local authorities on this matter.

As of September 30, 2015, we had a $16 million reserve for environmental remediation costs at various sites. The operation and maintenance component of this reserve was $7 million. The $16 million reserve represents our current best estimate of costs likely to be incurred for remediation based on our analysis of the extent of cleanup required, alternative cleanup methods available, the ability of other responsible parties to contribute and our interpretation of laws and regulations applicable to each of our sites.

## Other Proceedings

## Respirator Liabilities

We have exposure in connection with a safety respiratory products business that a subsidiary acquired from American Optical Corporation ("AO") in an April 1990 asset purchase transaction. The subsidiary manufactured respirators under the AO brand and disposed of that business in July 1995. In connection with its acquisition of the business, the subsidiary agreed, in certain circumstances, to assume a portion of AO's liabilities, including costs of legal fees together with amounts paid in settlements and judgments, allocable to AO respiratory products used prior to the 1990 purchase by the Cabot subsidiary. In exchange for the subsidiary's assumption of certain of AO's respirator liabilities, AO agreed to provide to the subsidiary the benefits of: (i) AO's insurance coverage for the period prior to the 1990 acquisition and (ii) a former owner's indemnity of AO holding it harmless from any liability allocable to AO respiratory products used prior to May 1982.

Generally, these respirator liabilities involve claims for personal injury, including asbestosis, silicosis and coal worker's pneumoconiosis, allegedly resulting from the use of respirators that are alleged to have been negligently designed and/or labeled. Neither Cabot, nor its past or present subsidiaries, at any time manufactured asbestos or asbestos-containing products. At no time did this respiratory product line represent a significant portion of the respirator market.



The subsidiary transferred the business to Aearo Corporation (“Aearo”) in July 1995. Cabot agreed to have the subsidiary retain certain liabilities associated with exposure to asbestos and silica while using respirators prior to the 1995 transaction so long as Aearo paid, and continues to pay, Cabot an annual fee of $400,000. Aearo can discontinue payment of the fee at any time, in which case it will assume the responsibility for and indemnify Cabot against those liabilities which Cabot’s subsidiary had agreed to retain. We anticipate that we will continue to receive payment of the $400,000 fee from Aearo and thereby retain these liabilities for the foreseeable future. We have no liability in connection with any products manufactured by Aearo after 1995.

In addition to Cabot’s subsidiary and as described above, other parties are responsible for significant portions of the costs of respirator liabilities, leaving Cabot’s subsidiary with a portion of the liability in only some of the pending cases. These parties include Aearo, AO, AO’s insurers, another former owner and its insurers, and a third-party manufacturer of respirators formerly sold under the AO brand and its insurers (collectively, with Cabot’s subsidiary, the “Payor Group”).

As of September 30, 2015 and 2014, there were approximately 38,000 and 41,000 claimants, respectively, in pending cases asserting claims against AO in connection with respiratory products. Cabot has contributed to the Payor Group’s defense and settlement costs with respect to a percentage of pending claims depending on several factors, including the period of alleged product use. In order to quantify our estimated share of liability for pending and future respirator liability claims, we have engaged, through counsel, the assistance of Hamilton, Rabinovitz & Alschuler, Inc. (“HR&A”), a leading consulting firm in the field of tort liability valuation. The methodology used by HR&A addresses the complexities surrounding our potential liability by making assumptions about future claimants with respect to periods of asbestos, silica and coal mine dust exposure and respirator use. Using those and other assumptions, HR&A estimates the number of future asbestos, silica and coal mine dust claims that will be filed and the related costs that would be incurred in resolving both currently pending and future claims. On this basis, HR&A then estimates the value of the share of these liabilities that reflect our period of direct manufacture and our contractual obligations. Based on the HR&A estimates, we have recorded an $11 million reserve for our estimated share of liability for pending and future respirator claims. We made payments related to our respirator liability of $2 million in each of fiscal 2015, 2014 and 2013.

Our current estimate of the cost of our share of existing and future respirator liability claims is based on facts and circumstances existing at this time. Developments that could affect our estimate include, but are not limited to, (i) significant changes in the number of future claims, (ii) changes in the rate of dismissals without payment of pending silica and non-malignant asbestos claims, (iii) significant changes in the average cost of resolving claims, (iv) significant changes in the legal costs of defending these claims, (v) changes in the nature of claims received, (vi) changes in the law and procedure applicable to these claims, (vii) the financial viability of members of the Payor Group, (viii) a change in the availability of the insurance coverage of the members of the Payor Group or the indemnity provided by AO’s former owner, (ix) changes in the allocation of costs among the Payor Group, and (x) a determination that the assumptions that were used to estimate our share of liability are no longer reasonable. We cannot determine the impact of these potential developments on our current estimate of our share of liability for these existing and future claims. Accordingly, the actual amount of these liabilities for existing and future claims could be different than the reserved amount.

## Other Matters

We have various other lawsuits, claims and contingent liabilities. In our opinion, although final disposition of some or all of these other suits and claims may impact our financial statements in a particular period, they should not, in the aggregate, have a material adverse effect on our consolidated financial statements.

## Item 4. Mine Safety Disclosures

Not applicable.

## Executive Officers of the Registrant

Set forth below is certain information about Cabot’s executive officers as of November 25, 2015.

Patrick M. Prevost, age 60, is President and Chief Executive Officer and a member of Cabot’s Board of Directors, positions he has held since joining Cabot in January 2008. Prior to joining Cabot, since October 2005, Mr. Prevost served as President, Performance Chemicals, of BASF AG, an international chemical company. Prior to that, he was responsible for BASF Corporation’s Chemicals and Plastics business in North America. Prior to joining BASF in 2003, he held senior management positions at BP plc and Amoco.

Eduardo E. Cordeiro, age 48, is Executive Vice President and Chief Financial Officer and President of the Americas and Europe, Middle East and Africa (“EMEA”) regions. Mr. Cordeiro joined Cabot in 1998 and has served in a variety of leadership positions, including Corporate Controller, General Manager of the Fumed Metal Oxides business and General Manager of the Supermetals business. He was responsible for Corporate Strategy from May 2008 until February 2009, when he became Cabot’s Chief Financial Officer. Mr. Cordeiro was appointed Vice President in March 2003 and Executive Vice President in March 2009.



Nicholas S. Cross, age 54, is Executive Vice President and President of Performance Chemicals and Specialty Fluids. Mr. Cross joined Cabot in September 2009 as President of the EMEA region and was appointed President of Advanced Technologies in January 2013 and President of Performance Chemicals in November 2014. He was appointed Vice President upon joining Cabot in 2009, Senior Vice President in March 2012 and Executive Vice President in November 2014. Prior to joining Cabot, Mr. Cross held a variety of leadership positions in BP plc's Chemicals, Oil and Gas businesses, including Director of Chemicals Strategy and Head of International NGLs.

Sean D. Keohane, age 48, is Executive Vice President and President of Reinforcement Materials. Mr. Keohane joined Cabot in August 2002 and was named General Manager of Performance Chemicals in May 2008. From March 2012 until November 2014, he was Senior Vice President and President of Performance Chemicals and in November 2014 he was appointed President of Reinforcement Materials. He was appointed Vice President in March 2005, Senior Vice President in March 2012 and Executive Vice President in November 2014.

Brian A. Berube, age 53, is Senior Vice President and General Counsel. Mr. Berube joined Cabot in 1994 as an attorney in Cabot's law department and became Deputy General Counsel in June 2001, business General Counsel in March 2002, and General Counsel in March 2003. Mr. Berube was appointed Vice President in March 2002 and Senior Vice President in March 2012.

Friedrich von Gottberg, age 47, is Senior Vice President and President of Purification Solutions. Mr. von Gottberg joined Cabot in 1997. Since joining the Company he has held a variety of leadership positions in Research and Development and Finance. Prior to assuming his current role in January 2013, he was Vice President of the New Business Group from March 2008 until March 2012, and Senior Vice President and President of Advanced Technologies from March 2012 until January 2013. Mr. von Gottberg was appointed Vice President in March 2005 and Senior Vice President in March 2012.



## PART II

## Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Cabot’s common stock is listed for trading (symbol CBT) on the New York Stock Exchange. As of November 19, 2015, there were 792 holders of record of Cabot’s common stock. The tables below show the high and low sales price for Cabot’s common stock for each of the fiscal quarters ended December 31, March 31, June 30, and September 30 and the quarterly cash dividend paid on Cabot’s common stock for the past two fiscal years.

## Stock Price and Dividend Data

<table><tr><td rowspan="2"></td><td colspan="5">Quarters Ended</td></tr><tr><td>December 31</td><td colspan="2">March 31</td><td>June 30</td><td>September 30</td></tr><tr><td>Fiscal 2015</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash dividends per share</td><td>$ 0.22</td><td>$ 0.22</td><td>$ 0.22</td><td>$ 0.22</td><td>$ 0</td></tr><tr><td>Price range of common stock:</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>High</td><td>$ 50.86</td><td>$ 47.94</td><td>$ 47.27</td><td>$ 38.59</td><td></td></tr><tr><td>Low</td><td>$ 39.62</td><td>$ 40.33</td><td>$ 37.24</td><td>$ 31.04</td><td></td></tr><tr><td>Fiscal 2014</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash dividends per share</td><td>$ 0.20</td><td>$ 0.20</td><td>$ 0.22</td><td>$ 0.22</td><td></td></tr><tr><td>Price range of common stock:</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>High</td><td>$ 51.72</td><td>$ 59.28</td><td>$ 61.46</td><td>$ 59.12</td><td></td></tr><tr><td>Low</td><td>$ 41.59</td><td>$ 46.24</td><td>$ 55.05</td><td>$ 50.36</td><td></td></tr></table>

## Issuer Purchases of Equity Securities

The table below sets forth information regarding Cabot’s purchases of its equity securities during the quarter ended September 30, 2015:

<table><tr><td>Period</td><td>Total Number of Shares Purchased \( ^{(1)} $</td><td>Average Price Paid per Share</td><td>Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs \( ^{(1)} \)</td><td>Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs \( ^{(1)} \)</td></tr><tr><td>July 1, 2015—July 31, 2015</td><td>—</td><td>$—</td><td>—</td><td>4,125,700</td></tr><tr><td>August 1, 2015—August 31, 2015</td><td>380,000</td><td>$ 33.99</td><td>380,000</td><td>3,745,700</td></tr><tr><td>September 1, 2015—September 30, 2015</td><td>80,000</td><td>$ 33.54</td><td>80,000</td><td>3,665,700</td></tr><tr><td>Total</td><td>460,000</td><td></td><td>460,000</td><td></td></tr></table>

(1) On January 13, 2015, Cabot publicly announced that the Board of Directors authorized the Company to repurchase up to five million shares of its common stock on the open market or in privately negotiated transactions. The prior repurchase authorization was terminated at that time. The current authorization does not have a set expiration date. In the fourth quarter of 2015, Cabot repurchased 460,000 shares under this authorization.

## Item 6. Selected Financial Data

On July 31, 2012, Cabot completed the purchase of Norit N.V. (“Purification Solutions”). The operating results and ratios presented below for fiscal 2012 include two months of results of Purification Solutions. Beginning September 30, 2012 the balance sheet items presented below include those of Purification Solutions.

On November 18, 2013, Cabot purchased all of its joint venture partner’s common stock in NHUMO, S.A. de C.V. (“NHUMO”), which represented approximately 60% of the outstanding common stock of the joint venture. Prior to this transaction, the Company owned approximately 40% of the outstanding common stock of NHUMO, and the NHUMO entity was accounted for as an equity affiliate of the Company. The results of fiscal 2014 in the table below include 11 months of results at 100% consolidation and one month of results accounted for under the equity method at 40%. Results for all years prior to fiscal 2014 are reported under the equity method at 40%.



The Company completed the sales of its Supermetals business and Security Materials business on January 20, 2012 and July 31, 2014, respectively. The results of operations for both businesses for all periods presented are reflected as discontinued operations in the Consolidated Statements of Operations.

<table><tr><td rowspan="3"></td><td colspan="6">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td><td>2012</td><td>2011</td></tr><tr><td colspan="6">(Dollars in millions, except per share amounts and ratios)</td></tr><tr><td>Consolidated Net (Loss) Income</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net sales and other operating revenues</td><td>$ 2,871</td><td>$ 3,647</td><td>$ 3,456</td><td>$ 3,291</td><td>$ 3,091</td><td></td></tr><tr><td>Gross profit</td><td>585</td><td>721</td><td>633</td><td>644</td><td>553</td><td></td></tr><tr><td>Selling and administrative expenses</td><td>282</td><td>326</td><td>297</td><td>281</td><td>247</td><td></td></tr><tr><td>Research and technical expenses</td><td>58</td><td>60</td><td>68</td><td>72</td><td>63</td><td></td></tr><tr><td>Purification Solutions long-lived assets impairment charge</td><td>210</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Purification Solutions goodwill impairment charge</td><td>352</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>(Loss) income from operations</td><td>(317)</td><td>335</td><td>268</td><td>291</td><td>243</td><td></td></tr><tr><td>Net interest expense and other charges(1)</td><td>(60)</td><td>(27)</td><td>(58)</td><td>(45)</td><td>(40)</td><td></td></tr><tr><td>(Loss) income from continuing operations(2)</td><td>(377)</td><td>308</td><td>210</td><td>246</td><td>203</td><td></td></tr><tr><td>Benefit (provision) for income taxes(3)</td><td>45</td><td>(92)</td><td>(60)</td><td>(55)</td><td>(6)</td><td></td></tr><tr><td>Equity in earnings of affiliated companies</td><td>4</td><td>—</td><td>11</td><td>11</td><td>8</td><td></td></tr><tr><td>Income (loss) from discontinued operations, net of tax</td><td>2</td><td>2</td><td>(1)</td><td>204</td><td>53</td><td></td></tr><tr><td>Net (loss) income</td><td>(326)</td><td>218</td><td>160</td><td>406</td><td>258</td><td></td></tr><tr><td>Net income attributable to noncontrolling interests, net of tax</td><td>8</td><td>19</td><td>7</td><td>18</td><td>22</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>(334)</td><td>199</td><td>153</td><td>388</td><td>236</td><td></td></tr><tr><td>Common Share Data</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Diluted net (loss) income attributable to Cabot Corporation:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>(Loss) income from continuing operations</td><td>(5.29)</td><td>3.01</td><td>2.37</td><td>2.84</td><td>2.77</td><td></td></tr><tr><td>Income (loss) from discontinued operations</td><td>0.02</td><td>0.02</td><td>(0.01)</td><td>3.15</td><td>0.80</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>(5.27)</td><td>3.03</td><td>2.36</td><td>5.99</td><td>3.57</td><td></td></tr><tr><td>Dividends</td><td>0.88</td><td>0.84</td><td>0.80</td><td>0.76</td><td>0.72</td><td></td></tr><tr><td>Closing prices</td><td>31.56</td><td>50.77</td><td>42.71</td><td>36.57</td><td>24.78</td><td></td></tr><tr><td>Weighted-average diluted shares outstanding—millions</td><td>63.4</td><td>65.1</td><td>64.5</td><td>64.2</td><td>65.4</td><td></td></tr><tr><td>Shares outstanding at year end—millions</td><td>62.5</td><td>64.4</td><td>64.0</td><td>63.3</td><td>63.9</td><td></td></tr><tr><td>Consolidated Financial Position</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Current assets</td><td>1,048</td><td>1,364</td><td>1,495</td><td>1,443</td><td>1,555</td><td></td></tr><tr><td>Net property, plant, and equipment</td><td>1,383</td><td>1,581</td><td>1,600</td><td>1,547</td><td>1,031</td><td></td></tr><tr><td>Other assets</td><td>644</td><td>1,139</td><td>1,138</td><td>1,409</td><td>555</td><td></td></tr><tr><td>Total assets</td><td>3,075</td><td>4,084</td><td>4,233</td><td>4,399</td><td>3,141</td><td></td></tr><tr><td>Current liabilities</td><td>441</td><td>630</td><td>844</td><td>919</td><td>656</td><td></td></tr><tr><td>Long-term debt</td><td>970</td><td>1,004</td><td>1,020</td><td>1,172</td><td>556</td><td></td></tr><tr><td>Other long-term liabilities</td><td>326</td><td>386</td><td>286</td><td>369</td><td>313</td><td></td></tr><tr><td>Cabot Corporation stockholders&#x27; equity</td><td>1,234</td><td>1,942</td><td>1,951</td><td>1,813</td><td>1,487</td><td></td></tr><tr><td>Noncontrolling interests</td><td>104</td><td>122</td><td>132</td><td>126</td><td>129</td><td></td></tr><tr><td>Total liabilities and stockholders&#x27; equity</td><td>3,075</td><td>4,084</td><td>4,233</td><td>4,399</td><td>3,141</td><td></td></tr><tr><td>Selected Financial Ratios</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Adjusted return on invested capital(4)</td><td>8%</td><td>9%</td><td>8%</td><td>12%</td><td>16%</td><td></td></tr><tr><td>Net debt to capitalization ratio(5)</td><td>41%</td><td>33%</td><td>36%</td><td>40%</td><td>20%</td><td></td></tr><tr><td>Adjusted return on net assets(6)</td><td>9%</td><td>10%</td><td>9%</td><td>12%</td><td>14%</td><td></td></tr></table>



(1) Net interest expense and other charges includes foreign currency activity as follows: a loss of $8 million for fiscal 2015, a loss of $2 million for fiscal 2014, a gain of $2 million for fiscal 2013, and losses of $2 million and $6 million for fiscal 2012 and 2011, respectively.

(2) Income from operations includes certain items as presented in the table below. Refer to Note V to the consolidated financial statements for a description of certain items.

<table><tr><td rowspan="3"></td><td colspan="6">Years Ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td><td>2012</td><td>2011</td><td></td></tr><tr><td colspan="6">(Dollars in millions)</td></tr><tr><td>Global restructuring activities (Note P)</td><td>$ (21)</td><td>$ (29)</td><td>$ (35)</td><td>$ (17)</td><td>$ (18)</td><td></td></tr><tr><td>Legal and environmental matters and reserves</td><td>—</td><td>(18)</td><td>(1)</td><td>(8)</td><td>(1)</td><td></td></tr><tr><td>Acquisition and integration-related charges</td><td>(5)</td><td>(7)</td><td>(21)</td><td>(26)</td><td>—</td><td></td></tr><tr><td>Employee benefit plan settlement and other charges (Note N)</td><td>(21)</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Impairment of goodwill and long-lived assets of Purification Solutions (Note G)</td><td>(562)</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Foreign currency (loss) gain on revaluations</td><td>(2)</td><td>(3)</td><td>3</td><td>—</td><td>—</td><td></td></tr><tr><td>Gain on existing investment in NHUMO</td><td>—</td><td>29</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Inventory adjustment (Note E)</td><td>(6)</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Certain items, pre-tax</td><td>$ (617)</td><td>$ (28)</td><td>$ (54)</td><td>$ (51)</td><td>$ (19)</td><td></td></tr></table>

(3) The Company’s effective tax rate for fiscal 2015 was a benefit of 12%, which included $13 million of discrete tax benefits composed of $7 million for tax settlements, $4 million for repatriation, and $2 million for the renewal of the U.S. research and experimentation credit. The Company’s effective tax rate for fiscal 2014 was a provision of 30% which included net discrete charges of $17 million, composed of a $20 million charge for a valuation allowance, offset by $3 million of net tax benefit primarily related to tax settlements. The Company’s effective tax rate for fiscal 2013 was a provision of 28% which included net discrete charges of $3 million, composed of a $13 million foreign currency related charge, offset by $10 million of net tax benefit related to tax settlements, renewal of the U.S. research and experimentation (“R&E”) credit, and other miscellaneous tax items in the tax provision. The Company’s effective tax rate for fiscal 2012 was a provision of 22% which includes net discrete tax benefits of $8 million from the release of a valuation allowance and $3 million from settlements and miscellaneous tax items. The Company’s effective tax rate for fiscal 2011 was a provision of 3% which includes net tax benefits of $24 million from the repatriation of high taxed income, $10 million from the settlements of various tax audits, $2 million from the renewal of the R&E credit and $2 million for investment incentive tax credits recognized in China.

(4) Adjusted return on invested capital (“Adjusted ROIC”) is a non-GAAP financial measure that management believes is useful to investors as a measure of performance and the effectiveness of our use of capital. We use Adjusted ROIC as one measure to monitor and evaluate performance. ROIC is not a measure of financial performance under GAAP and may not be defined and calculated by other companies in the same manner. Adjusted ROIC, which excludes items management does not consider representative of the Company’s segment results, is calculated as follows.

Numerator (four quarter rolling):

Net income (loss) attributable to Cabot Corporation

Less the after-tax impact of:

Noncontrolling interest in net income

Interest expense

Interest income

Certain items

Discontinued operations



## Denominator:

Previous five quarter average ending invested capital calculated as follows:

Total Cabot Corporation stockholders' equity

Plus: Noncontrolling interests' equity
Long-term debt
Current portion of long-term debt
Notes payable

Less: Cash and cash equivalents

Less the four quarter rolling impact of after tax certain items.

Net debt to capitalization ratio is calculated by dividing total debt (the sum of short-term and long-term debt less cash and cash equivalents) by total capitalization (the sum of Total stockholders' equity plus total Debt).

Adjusted return on net assets (“Adjusted RONA”) is a non-GAAP financial measure that management believes is useful to investors as a measure of performance and the effectiveness of our use of capital. We use Adjusted RONA as one measure to monitor and evaluate performance. RONA is not a measure of financial performance under GAAP and may not be defined and calculated by other companies in the same manner. Adjusted RONA, which excludes items management does not consider representative of the Company’s segment results, is calculated as follows.

## Numerator (four quarter rolling):

Net income (loss) attributable to Cabot Corporation

Less the after-tax impact of:

Noncontrolling interest in net income

Certain items

Discontinued operations

## Denominator:

Previous five quarter average ending net asset balance calculated as follows:

Net Working Capital (Accounts Receivable plus Inventory less Accounts Payable and Accruals)

Plus: Property Plant & Equipment (net of depreciation)

Assets held for rent

External investments, including Equity affiliates



## Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

## Critical Accounting Policies

The preparation of our financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, and expenses and related disclosure of contingent assets and liabilities. We consider an accounting estimate to be critical to the financial statements if (i) the estimate is complex in nature or requires a high degree of judgment and (ii) different estimates and assumptions were used, the results could have a material impact on the consolidated financial statements. On an ongoing basis, we evaluate our estimates and the application of our policies. We base our estimates on historical experience, current conditions and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. The policies that we believe are critical to the preparation of the Consolidated Financial Statements are presented below.

## Revenue Recognition and Accounts and Notes Receivable

We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable and collectability is reasonably assured. We generally are able to ensure that products meet customer specifications prior to shipment. If we are unable to determine that the product has met the specified objective criteria prior to shipment or if title has not transferred because of sales terms, the revenue is considered “unearned” and is deferred until the revenue recognition criteria are met.

Shipping and handling charges related to sales transactions are recorded as sales revenue when billed to customers or included in the sales price. Taxes collected on sales to customers are excluded from revenues.

The following table shows the relative size of the revenue recognized in each of the Company’s reportable segments:

<table><tr><td rowspan="2"></td><td colspan="3">Years ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td></tr><tr><td>Reinforcement Materials</td><td>54%</td><td>59%</td><td>57%</td></tr><tr><td>Performance Chemicals</td><td>33%</td><td>29%</td><td>30%</td></tr><tr><td>Purification Solutions</td><td>11%</td><td>9%</td><td>10%</td></tr><tr><td>Specialty Fluids</td><td>2%</td><td>3%</td><td>3%</td></tr></table>

We derive the substantial majority of revenues from the sale of products in Reinforcement Materials and Performance Chemicals. Revenue from these products is typically recognized when the product is shipped and title and risk of loss have passed to the customer. We offer certain customers cash discounts and volume rebates as sales incentives. The discounts and volume rebates are recorded as a reduction in sales at the time revenue is recognized and are estimated based on historical experience and contractual obligations. We periodically review the assumptions underlying estimates of discounts and volume rebates and adjust revenues accordingly.

Revenue in Purification Solutions is typically recognized when the product is shipped and title and risk of loss have passed to the customer. For major activated carbon injection systems projects, revenue is recognized using the percentage-of-completion method.

A significant portion of the revenue in Specialty Fluids arises from the rental of cesium formate. This revenue is recognized throughout the rental period based on the contracted rental terms. Customers are also billed and revenue is recognized, typically at the end of the job, for cesium formate product that is not returned. We also generate revenues from cesium formate sold outside of a rental process and revenue is recognized upon delivery of the fluid.

We maintain allowances for doubtful accounts based on an assessment of the collectability of specific customer accounts, the aging of accounts receivable and other economic information on both a historical and prospective basis. Customer account balances are charged against the allowance when it is probable the receivable will not be recovered. There is no material off-balance sheet credit exposure related to customer receivable balances.

## Inventory Valuation

The cost of all carbon black inventories in the U.S. is determined using the last-in, first-out (“LIFO”) method. Total U.S. inventories utilizing this cost flow assumption was $24 million at September 30, 2015 and $28 million at September 30, 2014. These inventories represent 6% and 5% of total worldwide inventories at September 30, 2015 and 2014, respectively. Had we used the first-in, first-out (“FIFO”) method instead of the LIFO method for such inventories, the value of those inventories would have been $30 million and $52 million higher as of September 30, 2015 and 2014, respectively. The cost of Specialty Fluids inventories, which are classified as assets held for rent, is determined using the average cost method. The cost of other U.S. and all non-U.S. inventories



is determined using the FIFO method. In periods of rapidly rising or declining raw material costs, the inventory method we employ can have a significant impact on our profitability. Under our current LIFO method, when raw material costs are rising, our most recent higher priced purchases are the first to be charged to Cost of sales. If, however, we were using a FIFO method, our purchases from earlier periods, which were at lower prices, would instead be the first charged to Cost of sales. The opposite result could occur during a period of rapid decline in raw material costs.

At certain times, we may decrease inventory levels to the point where layers of inventory recorded under the LIFO method that were purchased in preceding years are liquidated. The inventory in these layers may be valued at an amount that is different than our current costs. If there is a liquidation of an inventory layer, there may be an impact to our Cost of sales and Net income for that period. If the liquidated inventory is at a cost lower than our current cost, there would be a reduction in our Cost of sales and an increase to our Net income during the period. Conversely, if the liquidated inventory is at a cost higher than our current cost, there will be an increase in our Cost of sales and a reduction to our net income during the period.

We review inventory for both potential obsolescence and potential declines in anticipated selling prices periodically. In this review, we make assumptions about the future demand for and market value of the inventory and based on these assumptions estimate the amount of any obsolete, unmarketable, slow moving or overvalued inventory. We write down the value of our inventories by an amount equal to the difference between the cost of inventory and the estimated market value. Historically, such write-downs have not been material. If actual market conditions are less favorable than those projected by management at the time of the assessment, however, additional inventory write-downs may be required, which could reduce our gross profit and our earnings.

## Intangible Assets and Goodwill Impairment

We record tangible and intangible assets acquired and liabilities assumed in business combinations under the acquisition method of accounting. Amounts paid for an acquisition are allocated to the assets acquired and liabilities assumed based on their fair values at the date of acquisition. Goodwill is comprised of the purchase price of business acquisitions in excess of the fair value assigned to the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but is reviewed for impairment annually as of May 31, or when events or changes in the business environment indicate that the carrying value of the reporting unit may exceed its fair value. A reporting unit, for the purpose of the impairment test, is at or below the operating segment level, and constitutes a business for which discrete financial information is available and regularly reviewed by segment management. The separate businesses included within Performance Chemicals are considered separate reporting units. The goodwill balance relative to this segment is recorded in the Metal Oxides reporting unit.

For the purpose of the goodwill impairment test, we first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If an initial qualitative assessment identifies that it is more likely than not that the carrying value of a reporting unit exceeds its estimated fair value, an additional quantitative evaluation is performed under the two-step impairment test. Alternatively, we may elect to proceed directly to the quantitative goodwill impairment test. If based on the quantitative evaluation the fair value of the reporting unit is less than its carrying amount, we perform an analysis of the fair value of all assets and liabilities of the reporting unit. If the implied fair value of the reporting unit's goodwill is determined to be less than its carrying amount, an impairment is recognized for the difference. The fair value of a reporting unit is based on discounted estimated future cash flows. The fair value is also benchmarked against a market approach using the guideline public companies method. The assumptions used to estimate fair value include management's best estimates of future growth rates, operating cash flows, capital expenditures and discount rates over an estimate of the remaining operating period at the reporting unit level. Should the fair value of any of our reporting units decline below its carrying amount because of reduced operating performance, market declines, changes in the discount rate, or other conditions, charges for impairment may be necessary. Based on our most recent annual goodwill impairment test performed as of May 31, 2015, the fair values of the Reinforcement Materials and Metal Oxides reporting units were substantially in excess of their carrying values. The fair value of the Purification Solutions reporting unit was less than its carrying amount and an impairment charge was recorded in the third quarter of fiscal 2015 as described below under "Purification Solutions Goodwill and Long-Lived Assets Impairment Charges." Due to the impairment recorded, the fair value of the Purification Solutions reporting unit was insignificantly higher than its carrying value. No events occurred in the fourth fiscal quarter of 2015 that would suggest that it is more likely than not that the carrying values of any of our reporting units exceeded its fair value.

We use assumptions and estimates in determining the fair value of assets acquired and liabilities assumed in a business combination. The determination of the fair value of intangible assets requires the use of significant judgment with regard to assumptions used in the valuation model. We estimate the fair value of identifiable acquisition-related intangible assets principally based on projections of cash flows that will arise from these assets. The projected cash flows are discounted to determine the fair value of the assets at the dates of acquisition.



Definite-lived intangible assets, which are comprised of customer relationships and developed technologies, are amortized over their estimated useful lives and are reviewed for impairment when indication of potential impairment exists, such as a significant reduction in cash flows associated with the assets. We evaluate indefinite-lived intangible assets, which are comprised of the trademarks of Purification Solutions, for impairment annually or when events occur or circumstances change that may reduce the fair value of the asset below its carrying amount. The annual review is performed as of May 31. We may first perform a qualitative assessment to determine whether it is necessary to perform the quantitative impairment test or bypass the qualitative assessment and proceed directly to performing the quantitative impairment test. The quantitative impairment test is based on discounted estimated future cash flows. The assumptions used to estimate fair value include management's best estimates of future growth rates and discount rates over an estimate of the remaining operating period at the unit of accounting level. Refer to the "Purification Solutions Goodwill and Long-Lived Assets Impairment Charges" section below for details on the impairment test performed on intangible assets of the Purification Solutions reporting unit and the resulting impairment charges recorded. Effective in the third quarter of fiscal year 2015 and as a part of the impairment assessment performed, we determined that the trademarks for Purification Solutions no longer had an indefinite life.

## Long-lived Assets Impairment

Our long-lived assets primarily include property, plant and equipment, intangible assets, long-term investments and assets held for rent. The carrying values of long-lived assets are reviewed for impairment whenever events or changes in business circumstances indicate that the carrying amount of an asset may not be recoverable.

To test for impairment of assets we generally use a probability-weighted estimate of the future undiscounted net cash flows of the assets over their remaining lives to determine if the value of the asset is recoverable. Long-lived assets are grouped with other assets and liabilities at the lowest level for which independent identifiable cash flows are determinable.

Refer to the “Purification Solutions Goodwill and Long-Lived Assets Impairment Charges” section below for details on the Purification Solutions goodwill impairment test and the resulting impairment charge recorded.

An asset impairment is recognized when the carrying value of the asset is not recoverable based on the analysis described above, in which case the asset is written down to its fair value. If the asset does not have a readily determinable market value, a discounted cash flow model may be used to determine the fair value of the asset. In circumstances when an asset does not have separate identifiable cash flows, an impairment charge is recorded when we no longer intend to use the asset.

## Purification Solutions Goodwill and Long-Lived Assets Impairment Charges

During fiscal 2015 and as a result of the impairment tests performed on goodwill and long-lived assets of the Purification Solutions reporting unit, we recorded impairment charges and an associated tax benefit in the Consolidated Statements of Operations as follows:

<table><tr><td>Year EndedSeptember 30, 2015(Dollars in millions)</td></tr><tr><td>Purifications Solutions goodwill impairment charge ........... $ 352</td></tr><tr><td>Purification Solutions long-lived assets impairment charge .... 210</td></tr><tr><td>Provision (benefit) for income taxes .............. (80)</td></tr><tr><td>Impairment charges, after tax .............. $ 482</td></tr></table>

The future growth in the Purification Solutions segment is highly dependent on achieving the expected volumes and margins in the activated carbon based mercury removal business. These volumes and margins are highly dependent on demand for mercury removal products and our successful realization of our anticipated share of volumes in this segment. The expected demand for mercury removal products significantly depends on: (1) the implementation and enforcement of environmental laws and regulations, particularly those that would require U.S. based coal-fired electric utilities to reduce the quantity of air pollutants they release, including mercury, to comply with the Mercury and Air Toxics Standards (“MATS”) issued by the U.S. Environmental Protection Agency (“EPA”) and (2) other factors such as the anticipated usage of activated carbon in the coal-fired energy units. In November 2014, the U.S. Supreme Court agreed to consider whether the EPA appropriately considered costs in determining whether it is necessary and appropriate to regulate hazardous air pollutants emitted by electric utilities. On June 29, 2015, the U.S. Supreme Court held that the EPA unreasonably failed to consider costs in determining whether it is necessary and appropriate to regulate hazardous air pollutants emitted by coal-fired utilities, and remanded the case back to the U.S. Court of Appeals for the District of Columbia Circuit for further proceedings.



The implementation period for the MATS regulations began in April 2015. With this recent implementation and associated customer and industry developments during the third fiscal quarter, as well as the Supreme Court’s ruling, we reassessed our previous estimates for expected growth in volumes, prices and margins in the Purification Solutions reporting unit. The main drivers of growth, including the size of the overall mercury removal industry, utility adoption rates, usage levels, and pricing, among others were lowered from previous estimates. Based on these revised estimates and as part of step one of the annual impairment test, we determined the estimated fair value of the Purification Solutions reporting unit was lower than the reporting unit’s carrying value. As such, the reporting unit failed step one of the goodwill impairment test.

In determining the fair value of the Purification Solutions reporting unit, we used an income approach (a discounted cash flow analysis) which incorporated significant estimates and assumptions related to future periods including, timing of MATS implementation, the anticipated size of the mercury removal industry, and growth rates and pricing assumptions of activated carbon, among others. We assumed a two year delay in the final MATS implementation due to the U.S. Supreme Court’s ruling. Additional impairment charges may be required if the rulings of the U.S. Court of Appeals for the District of Columbia Circuit on remand result in a delay in the implementation of MATS that is longer than two years or if the regulation is vacated. In addition, an estimate of the reporting unit’s weighted average cost of capital (“WACC”) is used to discount future estimated cash flows to their present value. The WACC was based upon externally available data considering market participants’ costs of equity and debt, capital structure and risk factors specific to the Purification Solutions reporting unit.

Step two of the goodwill impairment test requires us to perform a theoretical purchase price allocation for the reporting unit to determine the implied fair value of goodwill and to compare the implied fair value of goodwill to the recorded amount of goodwill. The estimate of fair value is complex and requires significant judgment. Accounting guidance provides that a company should recognize an estimated impairment charge to the extent that it determines that it is probable that an impairment loss has occurred and such impairment can be reasonably estimated. As of June 30, 2015, we recorded a pre-tax goodwill impairment charge in the amount of $353 million. We completed the step two analysis in the fourth quarter of fiscal year 2015, which resulted in recording a credit of $1 million to the pre-tax goodwill impairment charge. Therefore, for the year ended September 30, 2015, the pre-tax goodwill impairment charge was $352 million.

Based on the same factors leading to goodwill impairment, we also considered whether the reporting unit's carrying values of definite-lived intangible assets and property, plant and equipment may not be recoverable or whether the carrying value of certain indefinite-lived intangible assets were impaired. We used the income approach to determine the fair value of the indefinite-lived intangible assets represented by the trademarks of Purification Solutions and determined that the fair value of these intangible assets was lower than their carrying value. As such, an impairment loss was recorded in the amount of $39 million. Subsequent to this impairment analysis, we concluded that an indefinite life of such assets could no longer be supported and have begun amortizing these assets on their estimated useful life. We also performed an impairment analysis to assess if definite-lived intangible assets and property, plant and equipment were recoverable based on the estimated undiscounted cash flows of the reporting unit, which was determined to be the lowest level of identifiable cash flows, and these cash flows were not sufficient to recover the carrying value of the long-lived assets over their remaining useful lives. Accordingly, an impairment charge was recorded based on the lower of the carrying amount or fair value of the long-lived assets. We used the income approach to determine the fair value of the definite-lived intangible assets and a combination of the cost and market approaches to fair value our property, plant and equipment. We recorded impairment charges of $119 million and $51 million, to our definite-lived intangible assets and property, plant and equipment, respectively, in the quarter ended June 30, 2015. We completed the impairment analysis in the fourth quarter of fiscal year 2015 which resulted in increasing the property, plant and equipment impairment charge by $1 million to $52 million. Therefore, for the year ended September 30, 2015, the long-lived assets impairment charge was $210 million. In connection with the long-lived assets impairment charges, we recorded a deferred tax benefit of $80 million to our income tax provision.

The performance of the Purification Solutions reporting unit will continue to be monitored. If the reporting unit does not achieve the financial performance that we expect or events or circumstances change, it is possible that additional impairment charges may result.

## Pensions and Other Postretirement Benefits

We maintain both defined benefit and defined contribution plans for our employees. In addition, we provide certain postretirement health care and life insurance benefits for our retired employees. Plan obligations and annual expense calculations are based on a number of key assumptions. The assumptions, which are specific for each of our U.S. and foreign plans, are related to both the assets we hold to fund our plans (where applicable) and the characteristics of the benefits that will ultimately be provided to our employees. The most significant assumptions relative to our plan assets include the anticipated rates of return on these assets. Assumptions relative to our pension obligations are more varied; they include estimated discount rates, rates of compensation increases for employees, and mortality, employee turnover and other related demographic data. Projected health



care and life insurance obligations also rely on the above mentioned demographic assumptions and assumptions surrounding health care cost trends. Actual results that differ from the assumptions are generally accumulated and amortized over future periods and could therefore affect the recognized expense and recorded obligation in such future periods. However, cash flow requirements may be different from the amounts of expense that are recorded in the consolidated financial statements.

## Litigation and Contingencies

We are involved in litigation in the ordinary course of business, including personal injury and environmental litigation. After consultation with counsel, as appropriate, we accrue a liability for litigation when it is probable that a liability has been incurred and the amount can be reasonably estimated. The estimated reserves are recorded based on our best estimate of the liability associated with such matters or the low end of the estimated range of liability if we are unable to identify a better estimate within that range. Our best estimate is determined through the evaluation of various information, including claims, settlement offers, demands by government agencies, estimates performed by independent third parties, identification of other responsible parties and an assessment of their ability to contribute, and our prior experience. Litigation is highly uncertain and there is always the possibility of an unusual result in any particular case that may reduce our earnings and cash flows.

The most significant reserves that we have established are for environmental remediation and respirator litigation claims. The amount accrued for environmental matters reflects our assumptions about remediation requirements at the contaminated sites, the nature of the remedies, the outcome of discussions with regulatory agencies and other potentially responsible parties at multi-party sites, and the number and financial viability of other potentially responsible parties. These liabilities can be affected by the availability of new information, changes in the assumptions on which the accruals are based, unanticipated government enforcement action or changes in applicable government laws and regulations, which could result in higher or lower costs.

Our current estimate of the cost of our share of existing and future respirator liability claims is based on facts and circumstances existing at this time. Developments that could affect our estimate include, but are not limited to, (i) significant changes in the number of future claims, (ii) changes in the rate of dismissals without payment of pending silica and non-malignant asbestos claims, (iii) significant changes in the average cost of resolving claims, (iv) significant changes in the legal costs of defending these claims, (v) changes in the nature of claims received, (vi) changes in the law and procedure applicable to these claims, (vii) the financial viability of other parties which contribute to the settlement of respirator claims, (viii) a change in the availability of insurance coverage maintained by certain of the other parties which contribute to the settlement of respirator claims, or the indemnity provided by a former owner of the business, (ix) changes in the allocation of costs among the various parties paying legal and settlement costs and (x) a determination that the assumptions that were used to estimate our share of liability are no longer reasonable. We cannot determine the impact of these potential developments on our current estimate of our share of liability for these existing and future claims. Accordingly, the actual amount of these liabilities for existing and future claims could be different than the reserved amount.

## Income Taxes

Our business operations are global in nature, and we are subject to taxes in numerous jurisdictions. Tax laws and tax rates vary substantially in these jurisdictions and are subject to change based on the political and economic climate in those countries. We file our tax returns in accordance with our interpretations of each jurisdiction’s tax laws.

Significant judgment is required in determining our worldwide provision for income taxes and recording the related tax assets and liabilities. In the ordinary course of our business, there are operational decisions, transactions, facts and circumstances, and calculations which make the ultimate tax determination uncertain. Furthermore, our tax positions are periodically subject to challenge by taxing authorities throughout the world. We have recorded reserves for taxes and associated interest and penalties that may become payable in future years as a result of audits by tax authorities. Any significant impact as a result of changes in underlying facts, law, tax rates, tax audit, or review could lead to adjustments to our income tax expense, our effective tax rate, and/or our cash flow.

We record benefits for uncertain tax positions based on an assessment of whether the position is more likely than not to be sustained by the taxing authorities. If this threshold is not met, no tax benefit of the uncertain tax position is recognized. If the threshold is met, the tax benefit that is recognized is the largest amount that is greater than 50% likely of being realized upon ultimate settlement. This analysis presumes the taxing authorities' full knowledge of the positions taken and all relevant facts, but does not consider the time value of money. We also accrue for interest and penalties on these uncertain tax positions and include such charges in the income tax provision in the Consolidated Statements of Operations.

Additionally, we have established valuation allowances against a variety of deferred tax assets, including net operating loss carry-forwards, foreign tax credits, and other income tax credits. Valuation allowances take into consideration our ability to use these deferred tax assets and reduce the value of such items to the amount that is deemed more likely than not to be recoverable. Our ability to utilize these deferred tax assets is dependent on achieving our forecast of future taxable operating income over an



extended period of time. We review our forecast in relation to actual results and expected trends on a quarterly basis. Failure to achieve our operating income targets may change our assessment regarding the recoverability of our net deferred tax assets and such change could result in a valuation allowance being recorded against some or all of our net deferred tax assets. An increase in a valuation allowance would result in additional income tax expense, while a release of valuation allowances in periods when these tax attributes become realizable would reduce our income tax expense.

## Significant Accounting Policies

We have other significant accounting policies that are discussed in Note A of the Notes to our Consolidated Financial Statements in Item 8 below. Certain of these policies include the use of estimates, but do not meet the definition of critical because they generally do not require estimates or judgments that are as difficult or subjective to measure. However, these policies are important to an understanding of the Consolidated Financial Statements.

## Results of Operations

## Definition of Terms and Non-GAAP Financial Measures

When discussing our results of operations, we use several terms as described below.

The term “product mix” refers to the mix of types and grades of products sold or the mix of geographic regions where products are sold, and the positive or negative impact this has on the revenue or profitability of the business or segment.

The term “LIFO” includes two factors: (i) the impact of current inventory costs being recognized immediately in Cost of sales under a last-in first-out method, compared to the older costs that would have been included in Cost of sales under a first-in first-out method (“Cost of sales impact”); and (ii) the impact of reductions in inventory quantities, causing historical inventory costs to flow through Cost of sales (“liquidation impact”).

The discussion under the heading “Provision for Income Taxes and Reconciliation of Effective Tax Rate to Operating Tax Rate” includes a discussion of our “effective tax rate” and our “operating tax rate” and includes a reconciliation of the two rates. Our operating tax rate is a non-GAAP financial measure and should not be considered as an alternative to our effective tax rate, the most comparable GAAP financial measure. In calculating our operating tax rate, we exclude discrete tax items, which include: i) unusual or infrequent items such as a significant release of a valuation allowance, ii) items related to uncertain tax positions such as the tax impact of audit settlements, interest on tax reserves, and the release of tax reserves from the expiration of statutes of limitations, and iii) other discrete tax items, such as the tax impact of legislative changes and, on a quarterly basis, the timing of losses in certain jurisdictions and the cumulative rate adjustment, if applicable. We also exclude the tax impact of certain items, as defined below in the discussion of Total segment EBIT, on both operating income and the tax provision. Our definition of the operating tax rate may not be comparable to the definition used by other companies. Management believes that the non-GAAP financial measure is useful supplemental information because it helps our investors compare our tax rate year to year on a consistent basis and understand what our tax rate on current operations would be without the impact of these items which we do not believe are reflective of the underlying business results.

Total segment EBIT is a non-GAAP performance measure, and should not be considered an alternative for Income from continuing operations before taxes, the most directly comparable GAAP financial measure. In calculating Total segment EBIT, we make certain adjustments such as excluding certain items, meaning items that management does not consider representative of our fundamental segment results, as well as items that are not allocated to our business segments, such as interest expense and other corporate costs. Our Chief Operating Decision Maker uses segment EBIT to evaluate the operating results of each segment and to allocate resources to the segments. We believe Total segment EBIT provides useful supplemental information for our investors as it is an important indicator of the Company's operational strength and performance. Investors should consider the limitations associated with this non-GAAP measure, including the potential lack of comparability of this measure from one company to another. A reconciliation of Total segment EBIT to Income from continuing operations before income taxes and equity in earnings of affiliated companies is provided in Note V of our consolidated financial statements.

Cabot is organized into four reportable business segments: Reinforcement Materials, Performance Chemicals, Purification Solutions, and Specialty Fluids. In fiscal 2015, we realigned our business reporting structure into these four segments. Segment results have been recast for all periods presented to reflect the realignment of our global business segments. The new segment structure is designed to improve efficiency and resource prioritization and reflects how our chief operating decision maker reviews segment results to assess performance and allocate resources.

Our analysis of financial condition and operating results should be read with our consolidated financial statements and accompanying notes. Unless a calendar year is specified, all references to years in this discussion are to our fiscal years ended September 30.



## Drivers of Demand and Key Factors Affecting Profitability

Drivers of demand and key factors affecting our profitability differ by segment. In Reinforcement Materials, demand is influenced on a long-term basis primarily by: i) the number of vehicle miles driven globally; ii) the number of original equipment and replacement tires produced; and iii) the number of automotive buildings. Over the past several years, operating results have been driven by a number of factors, including: i) increases or decreases in our sales volumes driven by changes in production levels for tires or industrial rubber products and the level at which we service that demand; ii) changes in raw material costs and our ability to adjust the sales price for our products commensurate with changes in raw material costs; iii) changes in pricing and product mix dependent on the level of price increases or decreases to customers as well as the mix of products sold or the region in which they are sold; iv) global and regional capacity utilization for carbon black; v) fixed cost savings achieved through restructuring and other cost saving activities; vi) the growth of our volumes and market position in emerging economies; vii) capacity management and technology investments, including the impact of energy utilization and yield improvement technologies at our manufacturing facilities; and viii) royalties and technology payments related to our patented elastomer composites technology that is used in tire applications.

In Performance Chemicals, longer term demand is driven primarily by the construction and infrastructure, automotive, electronics and consumer products industries. In recent years, operating results in Performance Chemicals have been driven by: i) increases or decreases in sales volumes to the industries previously noted; ii) our ability to deliver differentiated products that drive enhanced performance in customers' applications; iii) our ability to obtain value pricing for this differentiation; iv) the cost of new capacity; and v) the adoption of new products for use in our customers' applications.

In Purification Solutions, longer term demand is driven primarily by the demand for activated carbon based solutions for water, gas and air, pharmaceuticals, food and beverages, catalysts and other chemical applications. Operating results in Purification Solutions have been influenced by i) changes in volume in the various applications previously noted, ii) the amount of coal-based power generation utilized in the U.S. and the regulation of those utilities, iii) management of our operations, including inventory levels, and the commensurate costs, iv) changes in price and product mix, and v) industry capacity utilization.

In Specialty Fluids, demand for cesium formate is primarily driven by the level of drilling activity for high pressure oil and gas wells and by the petroleum industry’s acceptance of our product as a drilling and completion fluid for this application. Operating results in Specialty Fluids are influenced by the number of drilling projects as well as the size, type and duration of the drilling jobs within the business.

## Overview of Results for Fiscal 2015

During fiscal 2015, Income from continuing operations before income taxes and equity in earnings (loss) of affiliated companies decreased compared to fiscal 2014 largely due to an impairment charge related to the assets of Purification Solutions. The impairment was driven by a less favorable estimate of the developing business for activated carbon in mercury removal applications and uncertainty created by the June 2015 U.S. Supreme Court decision regarding the Mercury and Air Toxics Standards ("MATS") regulations. This resulted in a pre-tax Long-lived assets impairment charge of $210 million and a pre-tax Goodwill impairment charge of $352 million. The total after-tax charge was $482 million. In addition, results declined due to margin pressure in Reinforcement Materials and lower project activity in Specialty Fluids, partially offset by improved EBIT results in Purification Solutions and Performance Chemicals.

## Fiscal 2015 compared to Fiscal 2014 and Fiscal 2014 compared to Fiscal 2013—Consolidated

Net Sales and other operating revenue and Gross Profit

<table><tr><td rowspan="3"></td><td colspan="5">Years ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td></td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Net sales and other operating revenues</td><td>$ 2,871</td><td>$ 3,647</td><td>$ 3,456</td><td></td><td></td></tr><tr><td>Gross profit</td><td>$ 585</td><td>$ 721</td><td>$ 633</td><td></td><td></td></tr></table>

The $776 million decrease in net sales from fiscal 2014 to fiscal 2015 was due primarily to a less favorable price and product mix (combined $433 million), an unfavorable impact from foreign currency translation ($203 million), a decrease in volumes ($116 million), lower elastomer composites royalties and technology payments ($10 million), and lower royalties in Purification Solutions ($3 million). The less favorable price and product mix impact was primarily due to lower selling prices during the year from price adjustments to customers for decreases in raw materials costs. The $191 million increase in net sales from fiscal 2013 to fiscal 2014 was due primarily to an increase in volumes ($247 million). The improvement was partially offset by a less favorable price and product mix (combined $57 million).



Gross profit decreased by $136 million in fiscal 2015 when compared to fiscal 2014 driven by lower margins in Reinforcement Materials and lower volumes in Specialty Fluids. Gross profit increased by $88 million in fiscal 2014 when compared to fiscal 2013 driven by higher volumes, raw material purchasing savings, and the benefits from energy efficiency investments.

Selling and Administrative Expenses

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Selling and administrative expenses</td><td>$</td><td>282</td><td>$</td><td>326</td><td>$</td></tr></table>

Selling and administrative expenses decreased by $44 million in fiscal 2015 when compared to fiscal 2014. The decrease was principally driven by reduced spending on travel and corporate projects, lower incentive compensation expense, and lower expenses related to a 2014 restructuring in our Europe, Middle East and Africa (“EMEA”) business service center. Selling and administrative expenses increased by $29 million in fiscal 2014 when compared to fiscal 2013. The increase was principally driven by higher expenses related to the restructuring of our EMEA business service center, the addition of NHUMO, and higher costs associated with corporate projects.

Research and Technical Expenses

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Research and technical expenses</td><td>$</td><td>58</td><td>$</td><td>60</td><td>$</td></tr></table>

Research and technical expenses decreased by $2 million in fiscal 2015 when compared to fiscal 2014 due to lower spending on projects across the segments. Research and technical expenses decreased by $8 million in fiscal 2014 when compared to fiscal 2013 primarily due to lower costs from the benefits associated with restructuring-related activities as we focus on activities that are closer to our existing businesses.

Purification Solutions Long-Lived Assets and Goodwill Impairment Charges

<table><tr><td rowspan="3"></td><td colspan="5">Years ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Purification Solutions long-lived assets impairment charge</td><td>$</td><td>210</td><td>$</td><td>—</td><td>$</td></tr><tr><td>Purification Solutions goodwill impairment charge</td><td>$</td><td>352</td><td>$</td><td>—</td><td>$</td></tr></table>

The Purification Solutions long-lived assets and goodwill impairment charges were recorded during fiscal 2015. Refer to Note G for further information on these charges.

Interest and Dividend Income

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Interest and dividend income</td><td>$</td><td>4</td><td>$</td><td>3</td><td>$</td></tr></table>

Interest and dividend income increased by $1 million in fiscal 2015 when compared to fiscal 2014 due to higher interest earned on cash balances. Interest and dividend income decreased by $2 million in fiscal 2014 when compared to fiscal 2013 due to lower interest earned on cash balances.

Interest Expense

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Interest expense</td><td>$</td><td>53</td><td>$</td><td>55</td><td>$</td></tr></table>

Interest expense decreased by $2 million in fiscal 2015 as compared to fiscal 2014. The decrease was primarily due to the repayment of certain long-term debt. Interest expense decreased by $7 million in fiscal 2014 as compared to fiscal 2013. The decrease was due to the maturity of long-term debt in the fourth quarter of fiscal 2013 that was refinanced with commercial paper carrying a lower interest rate.



<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Other (expense) income</td><td>$</td><td>(11)</td><td>$</td><td>(1)</td></tr></table>

Other (expense) income during fiscal 2015 changed by $36 million as compared to fiscal 2014 due primarily to a gain recognized on our existing equity investment in NHUMO ($29 million) in fiscal 2014 as a result of the NHUMO transaction and the unfavorable comparison of foreign currency movements ($6 million). Other (expense) income during fiscal 2014 changed by $26 million as compared to fiscal 2013 due primarily to a gain recognized on our existing equity investment in NHUMO ($29 million) as a result of the NHUMO transaction. This gain was partially offset by an unfavorable comparison of foreign currency movements.

Provision for Income Taxes and Reconciliation of Effective Tax Rate to Operating Tax Rate

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>(Benefit) provision for income taxes</td><td>$</td><td>(45)</td><td>$</td><td>60</td></tr><tr><td>Effective tax rate</td><td>12%</td><td>30%</td><td>28%</td><td></td></tr><tr><td>Impact of discrete tax items:</td><td></td><td></td><td></td><td></td></tr><tr><td>Unusual or infrequent items</td><td>(2)%</td><td>(7)%</td><td>(3)%</td><td></td></tr><tr><td>Items related to uncertain tax positions</td><td>(2)%</td><td>3%</td><td>2%</td><td></td></tr><tr><td>Other discrete tax items</td><td>1%</td><td>(2)%</td><td>1%</td><td></td></tr><tr><td>Impact of certain items</td><td>17%</td><td>3%</td><td>(2)%</td><td></td></tr><tr><td>Operating tax rate</td><td>26%</td><td>27%</td><td>26%</td><td></td></tr></table>

The benefit for income taxes was $45 million for fiscal 2015, resulting in an effective tax rate of 12%. This amount included net tax benefits of $107 million, principally comprised of an $80 million benefit from the impairment of the Purification Solutions segment, $14 million of benefits from other certain items and $13 million of benefits from discrete tax items. See Note G of the consolidated financial statements for details of the impairment. The operating tax rate for fiscal 2015 was 26%.

The provision for income taxes was $92 million for fiscal 2014, resulting in an effective tax rate of 30%. This amount included net discrete charges of $17 million, principally comprised of a $20 million valuation allowance, partially offset by a non-taxable gain of $29 million recognized on the Company’s pre-existing investment in NHUMO as a result of the NHUMO transaction. This gain is reported as a certain item. See Note C of the consolidated financial statements for details of the transaction. The operating tax rate for fiscal 2014 was 27%.

The provision for income taxes was $60 million for fiscal 2013, resulting in an effective tax rate of 28%. The increase in the effective tax rate for fiscal 2013, as compared to fiscal 2012, is due to a change in our geographic mix of earnings and an increase in losses from jurisdictions for which no benefit can be recognized. This amount included net discrete charges of $3 million composed of $13 million foreign currency related charge, offset by $10 million of net tax benefit related to tax settlements, renewal of the U.S. research and experimentation credit, and other miscellaneous tax items in the tax provision. The operating tax rate for fiscal 2013 was 26%.

Our anticipated operating tax rate for fiscal 2016 is between 26% and 28%. The IRS has not yet commenced the audit of our 2012 and later tax years and certain Cabot subsidiaries are under audit in a number of jurisdictions outside of the U.S. It is possible that some of these audits will be resolved in fiscal 2016 and could impact our anticipated effective tax rate. We have filed our tax returns in accordance with the tax laws in each jurisdiction and maintain tax reserves for uncertain tax positions.

Equity in Earnings of Affiliated Companies and Net Income Attributable to Noncontrolling Interest, net of tax

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Equity in earnings of affiliated companies, net of tax.</td><td>$</td><td>4</td><td>$</td><td>—</td></tr><tr><td>Net income attributable to noncontrolling interests, net of tax.</td><td>$</td><td>8</td><td>$</td><td>19</td></tr></table>



Equity in earnings of affiliated companies, net of tax, increased by $4 million in fiscal 2015 compared to fiscal 2014. The increase was primarily due to higher earnings from our Venezuelan equity affiliate. Equity in earnings of affiliated companies, net of tax, decreased by $11 million in fiscal 2014 compared fiscal 2013. The decline was primarily due to the consolidation of the earnings of NHUMO following the NHUMO transaction and lower earnings from our Venezuelan equity affiliate, including the unfavorable impact from the devaluation of the Venezuelan bolivar.

For fiscal 2015, net income attributable to noncontrolling interests, net of tax, decreased by $11 million compared to fiscal 2014 due to lower profitability of our joint ventures. For fiscal 2014, net income attributable to noncontrolling interests, net of tax, increased by $12 million compared to fiscal 2013 due to higher profitability of our joint ventures and charges associated with our 2013 restructuring in Malaysia that did not repeat in fiscal 2014.

## Income (Loss) from Discontinued Operations, net of tax

During fiscal 2014, we divested our Security Materials business and during fiscal 2012, we divested our Supermetals business. Accordingly, for all periods we have classified the income or loss from these businesses as Income from discontinued operations, net of tax.

## Net (Loss) Income Attributable to Cabot Corporation

In fiscal 2015, we reported a net loss of $334 million ($5.27 per diluted common share). The loss is driven by the Purification Solutions long-lived asset and goodwill impairment charges more fully discussed in Note G to our consolidated financial statements. This is compared to net income of $199 million ($3.03 per diluted common share) in fiscal 2014 and net income of $153 million ($2.36 per diluted common share) in fiscal 2013.

## Fiscal 2015 compared to Fiscal 2014 and Fiscal 2014 compared to Fiscal 2013—By Business Segment

Total segment EBIT, certain items, other unallocated items and Income from continuing operations before income taxes and equity in earnings of affiliated companies for fiscal 2015, 2014 and 2013 are set forth in the table below. The details of certain items and other unallocated items are shown below and in Note V of our Consolidated Financial Statements.

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Total segment EBIT</td><td>$ 332</td><td>$ 447</td><td>$ 386</td><td></td><td></td></tr><tr><td>Certain items</td><td>(617)</td><td>(28)</td><td>(54)</td><td></td><td></td></tr><tr><td>Other unallocated items</td><td>(92)</td><td>(111)</td><td>(122)</td><td></td><td></td></tr><tr><td>(Loss) income from continuing operations before income taxes and equity in earnings of affiliated companies</td><td>$ (377)</td><td>$ 308</td><td>$ 210</td><td></td><td></td></tr></table>

In fiscal 2015, total segment EBIT decreased by $115 million when compared to fiscal 2014. The decrease was driven by lower volumes ($69 million), lower unit margins ($44 million), an unfavorable comparison of foreign currency movements ($20 million), lower elastomer composites royalties and technology payments ($10 million), lower Purification Solutions royalties ($3 million) and the absence of a one-time insurance recovery in fiscal 2014 that did not repeat in fiscal 2015 in Purification Solutions ($9 million). These impacts were partially offset by lower fixed costs ($46 million).

In fiscal 2014, total segment EBIT increased by $61 million when compared to fiscal 2013. The increase was driven by higher volumes ($84 million), higher unit margins ($23 million) that resulted from raw material purchasing savings and the benefits from energy efficiency investments, a favorable comparison of foreign currency movements ($15 million), and higher royalty and technology payments in elastomer composites ($11 million). These increases were partially offset by higher fixed costs ($73 million) driven by costs from new capacity in the Reinforcement Materials segment and higher maintenance costs in the Purification Solutions segment.



## Certain Items:

Details of the certain items for fiscal 2015, 2014, and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Impairment of goodwill and long-lived assets of Purification Solutions</td><td>$</td><td>(562)</td><td>$</td><td>—</td></tr><tr><td>Global restructuring activities</td><td></td><td>(21)</td><td></td><td>(29)</td></tr><tr><td>Acquisition and integration-related charges</td><td></td><td>(5)</td><td></td><td>(7)</td></tr><tr><td>Employee benefit plan settlement and other charges</td><td></td><td>(21)</td><td></td><td>—</td></tr><tr><td>Foreign currency (loss) gain on revaluations</td><td></td><td>(2)</td><td></td><td>(3)</td></tr><tr><td>Gain on existing investment in NHUMO</td><td></td><td>—</td><td></td><td>29</td></tr><tr><td>Legal and environmental matters and reserves</td><td></td><td>—</td><td></td><td>(18)</td></tr><tr><td>Inventory reserve adjustment</td><td></td><td>(6)</td><td></td><td>—</td></tr><tr><td>Total certain items, pre-tax</td><td>$</td><td>(617)</td><td>$</td><td>(28)</td></tr><tr><td>Tax-related certain items</td><td></td><td></td><td></td><td></td></tr><tr><td>Tax impact of certain items</td><td>$</td><td>94</td><td>$</td><td>17</td></tr><tr><td>Tax impact of certain foreign exchange (losses) gains</td><td></td><td>—</td><td></td><td>—</td></tr><tr><td>Tax impact of non-deductible interest expense</td><td></td><td>—</td><td></td><td>—</td></tr><tr><td>Discrete tax items</td><td></td><td>13</td><td></td><td>(17)</td></tr><tr><td>Total tax-related certain items</td><td></td><td>—</td><td></td><td>—</td></tr><tr><td>Total certain items after tax</td><td>$</td><td>(510)</td><td>$</td><td>(28)</td></tr></table>

Certain items for fiscal 2015 include charges related to the impairment of Purification Solutions long-lived assets and goodwill, restructuring activities, acquisition and integration-related charges, foreign currency impacts on revaluations, employee benefit plan settlements, an inventory adjustment, and tax certain items. Details of the impairment of goodwill and long-lived assets are included in Note G of the Consolidated Financial Statements. Details of restructuring activities are included in Note P of the Consolidated Financial Statements. Acquisition and integration-related charges include legal and professional fees, the incremental value of inventory as a result of purchase accounting adjustments and other expenses related to the completion of the acquisitions and the integrations of Purification Solutions and NHUMO. A discussion of employee benefit plan settlements is included in Note N of the consolidated financial statements. A discussion of the inventory reserve adjustment is included in Note E of the consolidated financial statements. Tax-related certain items include discrete tax items, which are unusual and infrequent, and the tax impact of certain foreign exchange losses.

Other Unallocated Items:

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Interest expense</td><td>$</td><td>(53)</td><td>$</td><td>(55)</td></tr><tr><td>Equity in earnings of affiliated companies, net of tax</td><td></td><td>(4)</td><td></td><td>—</td></tr><tr><td>Unallocated corporate costs</td><td></td><td>(46)</td><td></td><td>(54)</td></tr><tr><td>General unallocated income (expense)</td><td></td><td>11</td><td></td><td>(2)</td></tr><tr><td>Total other unallocated items</td><td>$</td><td>(92)</td><td>$</td><td>(111)</td></tr></table>

Other unallocated items include Interest expense, Equity in earnings of affiliated companies, net of tax, Unallocated corporate costs, and General unallocated income (expense). The balances of unallocated corporate costs are primarily comprised of expenditures related to managing a public company that are not allocated to the segments and corporate business development costs related to new technology efforts. The balances of General unallocated expense primarily include foreign currency transaction gains (losses), interest income, dividend income, the elimination of profit related to unearned revenue, and the cost of sales impact of LIFO accounting.



In fiscal 2015, costs from total other unallocated items decreased by $19 million when compared to fiscal 2014. The decrease was driven by a change of $13 million of General unallocated income (expense) due to the cost of sales impact of LIFO accounting from changes in carbon black raw material costs that resulted in a favorable comparison ($19 million) partially offset by the unfavorable impact of changes in foreign currency movements ($6 million). In addition, Unallocated corporate costs decreased by $8 million primarily associated with lower spending for corporate projects and lower expenses related to incentive compensation.

In fiscal 2014, costs from total other unallocated items decreased by $11 million when compared to fiscal 2013. The decrease was driven by $11 million of lower Equity in earnings of affiliated companies, net of tax, due to the consolidation of the earnings of NHUMO following the NHUMO transaction and lower earnings from our Venezuelan equity affiliate. Interest expense also decreased by $7 million due to the maturity of long-term debt in the fourth quarter of fiscal 2013 that was refinanced with commercial paper carrying a lower interest rate. These decreases were partially offset by a $6 million increase in Unallocated corporate costs primarily associated with spending for corporate projects and higher expenses related to incentive compensation.

## Reinforcement Materials

Sales and EBIT for Reinforcement Materials for fiscal 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Reinforcement Materials Sales</td><td>1,507</td><td>2,108</td><td>1,931</td><td></td><td></td></tr><tr><td>Reinforcement Materials EBIT</td><td>143</td><td>259</td><td>195</td><td></td><td></td></tr></table>

In fiscal 2015, sales in Reinforcement Materials decreased by $601 million when compared to fiscal 2014. The decrease was principally driven by a less favorable price and product mix (combined $418 million), an unfavorable comparison of foreign currency translation ($116 million), 2% lower volumes ($55 million), and lower elastomer composites royalties and technology payments ($10 million). The less favorable price and product mix was primarily due to price adjustments to customers for decreases in raw material costs, lower pricing, and a shift in regional mix from North America to Asia. Lower volumes were driven by a reduction in rubber blacks volumes from lower contractual volumes in North America and weaker demand in China and South America. The lower elastomer composites royalties and technology payments were due to the transition from a fixed to a variable royalty arrangement and lower technology milestone payments.

In fiscal 2014, sales in Reinforcement Materials increased by $177 million when compared to fiscal 2013. The increase was principally driven by 13% higher rubber blacks volumes ($254 million). The increase was offset by a less favorable rubber blacks price and product mix (combined $67 million) and an unfavorable comparison of foreign currency translation ($14 million). Higher rubber blacks volumes were due to improved carbon black demand, the addition of new capacity in China, and the acquisition of NHUMO. The less favorable rubber blacks price and product mix was primarily due to price adjustments to customers for decreases in raw material costs.

In fiscal 2015, Reinforcement Materials EBIT decreased by $116 million when compared to fiscal 2014 driven principally by lower rubber blacks unit margins ($91 million), lower rubber blacks volumes ($14 million), lower elastomer composites royalties and technology payments ($10 million), and an unfavorable comparison of foreign currency translation ($7 million). The decreases were partially offset by lower rubber blacks fixed costs ($9 million). The less favorable rubber blacks unit margins were due to lower contract pricing and increased competition in Asia, negative feedstock effects from lower raw materials purchasing savings, lower benefits from our energy efficiency investments, and the impact of high cost inventory that moved through our supply chain during the first half of the year. We also experienced a less favorable sales mix, with lower sales in North America and higher sales in Asia. Lower rubber blacks fixed costs were primarily associated with cost management efforts to operate more efficiently and lower discretionary spending.

In fiscal 2014, Reinforcement Materials EBIT increased by $64 million when compared to fiscal 2013 driven principally by higher rubber blacks volumes ($85 million), higher rubber blacks unit margins ($16 million) from raw material purchasing savings and the benefit from energy efficiency investments, a favorable comparison of foreign currency translation ($12 million), and higher elastomer composites royalties and technology payments ($11 million). The increase was partially offset by higher rubber blacks fixed costs ($58 million). Higher rubber blacks fixed costs were primarily associated with new carbon black capacity in China and the acquisition of NHUMO.



## Performance Chemicals

Sales and EBIT for Performance Chemicals for fiscal 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Specialty Carbons and Formulations Sales</td><td>$     630</td><td>$     709</td><td>$     686</td><td></td><td></td></tr><tr><td>Metal Oxides Sales</td><td>297</td><td>313</td><td>303</td><td></td><td></td></tr><tr><td>Performance Chemicals Sales</td><td>$     927</td><td>$     1,022</td><td>$     989</td><td></td><td></td></tr><tr><td>Performance Chemicals EBIT</td><td>$     178</td><td>$     168</td><td>$     149</td><td></td><td></td></tr></table>

In fiscal 2015, sales in Performance Chemicals decreased by $95 million when compared to fiscal 2014 due to an unfavorable comparison of foreign currency translation ($64 million), and a less favorable price and product mix (combined $32 million). The change in price and product mix was mainly driven by price adjustments to customers for decreases in raw material costs.

In fiscal 2014, sales in Performance Chemicals increased by $33 million when compared to fiscal 2013 due to higher volumes ($41 million) and a favorable comparison of foreign currency translation ($9 million), offset by a less favorable price and product mix (combined $10 million) and lower aerogel royalties ($8 million). During fiscal 2014, volumes in Specialty Carbons and Formulations increased by 4% and volumes in Metal Oxides increased by 4%. Higher volumes were due to improved demand in our key end markets. The change in price and product mix was driven by price adjustments to customers for decreases in raw material costs.

In fiscal 2015, EBIT in Performance Chemicals was $10 million higher when compared to fiscal 2014 due to higher unit margins ($20 million) and lower fixed costs ($8 million). The improvement in unit margins was driven by lower raw material costs in the specialty carbons product line. Lower fixed costs were a result of cost management efforts across the segment. These benefits were partially offset by unfavorable foreign currency translation ($16 million) and slightly lower volumes ($2 million). Volumes were relatively flat across the segment during fiscal 2015.

In fiscal 2014, EBIT in Performance Chemicals was $19 million higher when compared to fiscal 2013 due to higher volumes ($21 million) as demand improved in our key end markets.

## Purification Solutions

Sales and EBIT for Purification Solutions for fiscal 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Purification Solutions Sales</td><td>$     296</td><td>$     315</td><td>$     328</td><td></td><td></td></tr><tr><td>Purification Solutions EBIT</td><td>$     5</td><td>$     19</td><td>$     4</td><td></td><td></td></tr></table>

Sales in Purification Solutions decreased by $19 million in fiscal 2015 when compared to fiscal 2014 due to an unfavorable comparison of foreign currency translation ($23 million), lower royalties ($3 million) and lower volumes ($3 million) partially offset by a more favorable price and product mix (combined $10 million). The more favorable price and product mix was primarily due to the implementation of price increases and an improved product mix. Overall volumes declined slightly from the effect on volumes of increasing prices, however, volumes sold to mercury removal customers increased. This was due to the first wave of customers complying with the MATS regulation in April of 2015.

Sales in Purification Solutions decreased by $13 million in fiscal 2014 when compared to fiscal 2013 due to lower volumes ($31 million) partially offset by a more favorable price and product mix (combined $13 million) and a favorable comparison of foreign currency translation ($5 million). Lower volumes were driven by a decline in demand in the air and gas sector. The more favorable price and product mix was primarily due to the implementation of price increases.

EBIT in Purification Solutions increased by $24 million in fiscal 2015 when compared to fiscal 2014 driven by improved unit margins ($21 million), lower fixed costs ($14 million), and the favorable comparison of foreign currency translation ($2 million). These improvements were partially offset by lower royalties ($3 million) and the absence of a one-time insurance recovery in fiscal 2014 that did not repeat in fiscal 2015 ($9 million), and lower volumes ($2 million). Higher unit margins were due to the implementation of price increases, improvement in the product mix and lower variable costs. Lower fixed costs were a result of improved operational performance, cost management efforts and $5 million of lower depreciation and amortization.



EBIT in Purification Solutions decreased by $15 million in fiscal 2014 when compared to fiscal 2013 driven by lower volumes ($17 million) and higher fixed costs ($10 million). These declines were partially offset by higher unit margins ($2 million) due to price increases and the benefit from insurance proceeds ($9 million). Lower volumes were primarily due to a decline in demand in the air and gas sector. Higher fixed costs were primarily related to higher maintenance costs and higher allocation of certain functional and indirect costs. The insurance proceeds were related to business interruption and property damage insurance recoveries for operating issues experienced in late fiscal 2013 and early fiscal 2014.

## Specialty Fluids

Sales and EBIT for Specialty Fluids for fiscal 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Specialty Fluids Sales</td><td>$     42</td><td>$     98</td><td>$     101</td><td></td><td></td></tr><tr><td>Specialty Fluids EBIT</td><td>$     6</td><td>$     39</td><td>$     46</td><td></td><td></td></tr></table>

Sales in Specialty Fluids decreased by $56 million in fiscal 2015 when compared to fiscal 2014. The decrease was primarily due to lower volumes ($62 million) from lower project activity levels that resulted in lower rental and sales volumes for our drilling fluids. The lower level of project activity was caused by the downturn in the oil and gas industry, which resulted in fewer investments, project delays, and stringent cost management by our customers. The decrease in volumes was partially offset by a more favorable price and product mix (combined $6 million).

Sales in Specialty Fluids decreased by $3 million in fiscal 2014 when compared to fiscal 2013. The decrease was primarily due to lower volumes ($8 million) partially offset by a more favorable price and product mix (combined $6 million).

EBIT in Specialty Fluids decreased by $33 million in fiscal 2015 when compared to fiscal 2014. The decrease was primarily due to lower volumes ($46 million). In response, we improved our price and product mix ($5 million) and reduced fixed costs ($8 million) to help partially offset the lower volumes.

EBIT in Specialty Fluids decreased by $7 million in fiscal 2014 when compared to fiscal 2013. The decrease is primarily due to higher fixed costs ($10 million) driven by higher mine-related costs, and lower volumes ($1 million), partially offset by a more favorable price and product mix (combined $5 million).

## Outlook

We expect modest growth in volumes in fiscal year 2016 in Reinforcement Materials and Performance Chemicals driven by demand growth for our products in the developed economies and continued economic uncertainty in Asia and South America. We anticipate continued margin pressure in the Reinforcement Materials segment during the remainder of calendar year 2015 from feedstock-related effects and an increasingly competitive environment in Asia. For Purification Solutions, we are repositioning our cost profile and until a decision from the U.S. Court of Appeals for the District of Columbia about next steps for MATS can provide clarity of direction for the regulation, we expect that Purification Solutions will operate at roughly breakeven EBIT in the near-term. Specialty Fluids continues to work on strengthening the project pipeline, but the short-term outlook remains difficult for the segment. To respond to the current environment, we remain focused on managing costs and cash flow. In October 2015, we announced our intention to implement a restructuring plan that is expected to result in Company-wide cost savings of approximately $50 million in fiscal 2016 as compared to fiscal 2015, with savings starting in the second quarter of fiscal 2016. In November 2015, we announced our intention to close our Merak, Indonesia carbon black manufacturing facility by the end of January 2016. It is expected that this closure will result in annual cost savings of approximately $8 million. We anticipate capital expenditures to be approximately $150 million in fiscal 2016.

## Cash Flows and Liquidity

## Overview

Our liquidity position, as measured by cash and cash equivalents plus borrowing availability, increased by $28 million during fiscal 2015. The increase was largely attributable to an increase in cash and the paydown of commercial paper. As of September 30, 2015, we had cash and cash equivalents of $77 million and borrowing availability under our revolving credit agreement of $738 million. Our revolving credit agreement, which was amended in October 2015 to increase the borrowing limit from $750 million to $1 billion, supports our commercial paper program. The outstanding balance of commercial paper as of September 30, 2015 was $12 million and is included within the Notes payable caption on our Consolidated Balance Sheets. At September 30, 2015, we were in compliance with all applicable covenants including the total consolidated debt to consolidated EBITDA (earnings before interest, taxes, depreciation and amortization) covenant.



We generally manage our cash and debt on a global basis to provide for working capital requirements as needed by region or site. Cash and debt are generally denominated in the local currency of the subsidiary holding the assets or liabilities, except where there are operational cash flow reasons to hold non-functional currency or debt. The vast majority of our cash and cash equivalent holdings tend to be held outside the U.S., as excess cash balances in the U.S. are generally used to repay commercial paper.

We anticipate sufficient liquidity from (i) cash on hand; (ii) cash flows from operating activities; and (iii) cash available from our revolving credit agreement and our commercial paper program to meet our operational and capital investment needs and financial obligations for the foreseeable future. Our liquidity derived from cash flows from operations is, to a large degree, predicated on our ability to collect our receivables in a timely manner, the cost of our raw materials, and our ability to manage inventory levels.

Our Consolidated Statements of Cash Flows have been presented to include discontinued operations with continuing operations. Therefore, unless noted otherwise, the following discussion of our cash flows and liquidity position include both continuing and discontinued operations.

The following discussion of the changes in our cash balance refers to the various sections of our Consolidated Statements of Cash Flows.

## Cash Flows from Operating Activities

Cash provided by operating activities, which consists of net income adjusted for the various non-cash items included in income, changes in working capital and changes in certain other balance sheet accounts, totaled $499 million in fiscal 2015. Operating activities provided $315 million and $419 million in fiscal 2014 and 2013, respectively.

Cash provided by operating activities in fiscal 2015 was driven primarily by our non-cash charges for depreciation and amortization and asset impairments, which more than offset our net loss for the period. In addition, there was a net decrease in accounts receivable and inventories largely driven by lower raw material costs and associated price reductions.

Cash provided from operating activities in fiscal 2014 was driven primarily by net income of $218 million plus $201 million of depreciation and amortization and $25 million of dividends from equity affiliates, $14 million of which was received from NHUMO prior to our purchase of the remaining outstanding common stock of the joint venture. These sources of cash were partially offset by an increase in accounts receivable and inventories due to higher sales and the inclusion of NHUMO balances.

Cash provided from operating activities in fiscal 2013 was driven primarily by net income of $160 million plus $190 million of depreciation and amortization and a decrease in accounts receivable and inventories.

In addition to the factors noted above, the following other elements of operations have a bearing on operating cash flows:

Restructurings — As of September 30, 2015, we had $9 million of total restructuring costs in accrued expenses in the consolidated balance sheet related to our global restructuring activities. We made cash payments of $24 million during fiscal 2015 and expect to make cash payments of approximately $9 million in fiscal 2016 and thereafter related to these restructuring plans.

In the first quarter of fiscal 2016, we announced our intention to restructure our operations subject to local consultation requirements and processes in certain locations. Additionally, we announced our commitment to close our carbon black manufacturing facility in Merak, Indonesia. These actions are expected to result in net cash outlays of approximately $38 million, substantially all of which is expected to be paid in fiscal 2016.

We may receive cash in the future from the sale of certain assets and land relating to restructured sites, which is not included in these amounts.

Environmental Reserves and Litigation Matters—As of September 30, 2015, we have recorded a $16 million reserve for environmental remediation costs at various sites. These sites are primarily associated with businesses divested in prior years. We anticipate that the expenditures at these sites will be made over a number of years, and will not be concentrated in any one year. Additionally, as of September 30, 2015 we have recorded an $11 million reserve for respirator claims. These expenditures will be incurred over many years. We also have other litigation costs arising in the ordinary course of business.

The following table represents the estimated future payments related to our environmental reserve.

<table><tr><td rowspan="3"></td><td colspan="10">Future Payments by Fiscal Year</td></tr><tr><td colspan="2">2016</td><td colspan="2">2017</td><td colspan="2">2018</td><td colspan="2">2019</td><td colspan="2">2020</td></tr><tr><td colspan="10">(Dollars in millions)</td></tr><tr><td>Environmental</td><td>$</td><td>2</td><td>$</td><td>3</td><td>$</td><td>3</td><td>$</td><td>1</td><td>$</td><td>6</td><td>$</td></tr></table>



## Cash Flows from Investing Activities

In fiscal 2015, capital expenditures were $141 million. Major capital project expenditures were related to the completion of our lignite mine development project in the Purification Solutions segment, mine development activities for our Specialty Fluids segment, and sustaining and compliance capital projects at our operating facilities. In fiscal 2014, capital expenditures of $171 million and cash paid for NHUMO of $73 million (net of cash acquired of $7 million) were partially offset by the receipt of the final cash payment for the sale of the Supermetals business of $215 million. Capital expenditures were primarily related to our lignite mine development project in the Purification Solutions segment, sustaining and compliance capital projects at our operating facilities, and mine development activities for the Specialty Fluids segment. In fiscal 2013, investing activities consumed $227 million of cash and were primarily driven by capital expenditures of $264 million partially offset by cash received from the notes receivable from the sale of the Supermetals business ($40 million in total, comprised of $39 million of principal and $1 million of interest).

Capital expenditures for fiscal 2016 are expected to be approximately $150 million. Our planned capital spending program for fiscal 2016 is primarily for sustaining and compliance capital projects at our operating facilities.

In January 2012, we completed the sale of our Supermetals business, which we classified as discontinued operations beginning in the fourth quarter of fiscal 2011 when we entered into the sale and purchase agreement. In connection with the sale, we received $175 million on the closing date and notes for additional minimum consideration totaling approximately $277 million that were payable at various dates through March 2014. Total cash proceeds collected were $452 million, of which the final payment of $215 million was received in fiscal 2014.

In July 2014, we completed the sale of our Security Materials business, which we classified as discontinued operations. In connection with the sale, we received approximately $20 million in cash proceeds.

## Cash Flows from Financing Activities

Financing activities consumed $256 million of cash in fiscal 2015 compared to $302 million of cash in fiscal 2014 and $206 million in fiscal 2013. During fiscal 2015, our overall debt balance decreased by $78 million. The decrease was driven primarily by our repayment of certain long-term debt and commercial paper. As of September 30, 2015, we had outstanding notes under our commercial paper program in an aggregate amount of $12 million, with a weighted average interest rate of 0.36%. During fiscal 2014, our overall debt balance decreased by $226 million. The decrease was driven primarily by our repayment of commercial paper using the cash received from the sale of the Supermetals business. As of September 30, 2014, we had outstanding notes under our commercial paper program in an aggregate amount of $30 million, with a weighted average interest rate of 0.25%.

The following table provides a summary of our outstanding debt.

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td>2014</td><td></td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Notes payable</td><td>$ 22</td><td>$ 44</td><td></td></tr><tr><td>Variable rate debt</td><td>—</td><td>28</td><td></td></tr><tr><td>Total variable rate debt</td><td>22</td><td>72</td><td></td></tr><tr><td>Fixed rate debt, net of discount</td><td>958</td><td>984</td><td></td></tr><tr><td>Unamortized bond discounts</td><td>(1)</td><td>(1)</td><td></td></tr><tr><td>Capital leases</td><td>14</td><td>17</td><td></td></tr><tr><td>Total debt</td><td>$ 993</td><td>$ 1,072</td><td></td></tr></table>

At September 30, 2015, we had $738 million of availability under our credit agreement.

Our long-term total debt, of which $1 million is current, matures at various times as presented in Note J. The weighted-average interest rate on our fixed rate long-term debt was 4.04% as of September 30, 2015.

At September 30, 2015, we have provided standby letters of credit totaling $11 million, which expire throughout fiscal 2016.

On October 23, 2015, we entered into a new revolving credit agreement that amended and extended our $750 million revolving credit agreement (which was scheduled to mature October 3, 2019). With this amendment and extension, we increased our borrowing availability to $1 billion. The new credit agreement matures on October 23, 2020, subject to two one-year options to extend on the first and second anniversaries of the effective date. The new credit agreement continues to support our commercial paper program. Borrowings under the new revolving credit agreement may be used for working capital, letters of credit and other general corporate purposes. The new revolving credit agreement contains affirmative and negative covenants, a single financial covenant (consolidated total debt to consolidated EBITDA) and events of default customary for financings of this type.

We issued $300 million of 5% fixed rate debt in fiscal 2009 that matures in early fiscal 2017 (October 1, 2016). Our intention is to refinance these securities prior to maturity during fiscal 2016.



## Share repurchases

During fiscal 2015 and fiscal 2014, we repurchased approximately 2.3 million and 0.2 million shares of our common stock on the open market for an aggregate purchase price of $96 million and $11 million, respectively. We did not make any repurchases on the open market in fiscal 2013. As of September 30, 2015, we had approximately 3.7 million shares available for repurchase under the Board of Directors' share repurchase authorization.

## Dividend payments

In fiscal 2015, 2014 and 2013, we paid cash dividends on our common stock of $0.88, $0.84 and $0.80 per share, respectively. These cash dividend payments totaled $56 million in fiscal 2015, $54 million in fiscal 2014, and $51 million in fiscal 2013.

## Venezuela

We own 49% of an operating carbon black affiliate in Venezuela, which is accounted for as an equity affiliate, through wholly-owned subsidiaries that carry the investment and receive its dividends. As of September 30, 2015, these subsidiaries carried the operating affiliate investment of $14 million and held 18 million bolivars (less than $1 million) in cash.

During fiscal 2015, 2014 and 2013, we received dividends in the amounts of $6 million, $5 million and $3 million, respectively, which were paid in U.S. dollars.

A significant portion of our operating affiliate’s sales are exports denominated in U.S. dollars. The Venezuelan government mandates that a certain percentage of the dollars collected from these sales be converted into bolivars. The operating affiliate and our wholly owned subsidiaries used an exchange rate that was available to us when converting these dollars into bolivars to remeasure their bolivar denominated monetary accounts. The exchange rate made available to us on September 30, 2015 was 52 bolivars to the U.S. dollar (B/).

The operating entity has generally been profitable. We continue to closely monitor developments in Venezuela and their potential impact on the recoverability of our equity affiliate investment.

We closely monitor our ability to convert our bolivar holdings into U.S. dollars, as we intend to convert substantially all bolivars held by our wholly-owned subsidiaries in Venezuela to U.S. dollars as soon as practical. Any future change in the exchange rate or opening of additional parallel markets could cause us to change the exchange rate we use and result in gains or losses on the bolivar denominated assets held by our wholly-owned subsidiaries.

## Employee Benefit Plans

As of September 30, 2015, we had a consolidated pension obligation, net of the fair value of plan assets, of $139 million, comprised of $86 million for pension benefit plan liabilities and $53 million for postretirement benefit plan liabilities.

The $86 million of unfunded pension benefit plan liabilities is derived as follows:

<table><tr><td></td><td>U.S.</td><td colspan="2">Foreign (Dollars in millions)</td><td>Total</td></tr><tr><td>Fair Value of Plan Assets</td><td>153</td><td>$</td><td>279</td><td>$</td></tr><tr><td>Benefit Obligation</td><td>170</td><td>$</td><td>348</td><td>$</td></tr><tr><td>Unfunded Status</td><td>(17)</td><td>$</td><td>(69)</td><td>$</td></tr></table>

In fiscal 2015, we made cash contributions totaling approximately $9 million to our foreign pension benefit plans. In fiscal 2016, we expect to make cash contributions of $8 million to our foreign pension plans.

The $53 million of unfunded postretirement benefit plan liabilities is comprised of $38 million for our U.S. and $15 million for our foreign postretirement benefit plans. These postretirement benefit plans provide certain health care and life insurance benefits for retired employees. Typical of such plans, our postretirement plans are unfunded and, therefore, have no plan assets. We fund these plans as claims or insurance premiums come due. In fiscal 2015, we paid postretirement benefits of $4 million under our U.S. postretirement plans and less than $1 million under our foreign postretirement plans. For fiscal 2016, we expect to make benefit payments of approximately $4 million under our U.S. postretirement plans and less than $1 million under our foreign postretirement plans.

## Off-balance sheet arrangements

We had no material transactions that meet the definition of an off-balance sheet arrangement.



## Contractual Obligations

The following table sets forth our long-term contractual obligations.

<table><tr><td rowspan="2"></td><td colspan="9">Payments Due by Fiscal Year</td></tr><tr><td>2016</td><td>2017</td><td>2018</td><td>2019</td><td>2020</td><td>Thereafter</td><td>Total</td><td></td><td></td></tr><tr><td>Contractual Obligations(1)</td><td></td><td></td><td></td><td>(Dollars in millions)</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Purchase Commitments</td><td>$ 302</td><td>$ 225</td><td>$ 216</td><td>$ 212</td><td>$ 174</td><td>$ 2,001</td><td>$ 3,130</td><td></td><td></td></tr><tr><td>Long-term debt</td><td>—</td><td>305</td><td>250</td><td>30</td><td>—</td><td>373</td><td>958</td><td></td><td></td></tr><tr><td>Capital lease obligations(2)</td><td>3</td><td>4</td><td>3</td><td>3</td><td>3</td><td>17</td><td>33</td><td></td><td></td></tr><tr><td>Fixed interest on long-term debt</td><td>39</td><td>24</td><td>19</td><td>15</td><td>15</td><td>30</td><td>142</td><td></td><td></td></tr><tr><td>Operating leases</td><td>21</td><td>14</td><td>12</td><td>10</td><td>8</td><td>67</td><td>132</td><td></td><td></td></tr><tr><td>Total</td><td>$ 365</td><td>$ 572</td><td>$ 500</td><td>$ 270</td><td>$ 200</td><td>$ 2,488</td><td>$ 4,395</td><td></td><td></td></tr></table>

(1) We are unable to estimate the timing of potential future payments related to our accrual for uncertain tax positions in the amount of $16 million at September 30, 2015.

(2) Capital lease obligations include executory costs and interest.

## Purchase commitments

We have entered into long-term, volume-based purchase agreements primarily for the purchase of raw materials and natural gas with various key suppliers in Reinforcement Materials, Performance Chemicals, and Purification Solutions. Under certain of these agreements the quantity of material being purchased is fixed, but the price we pay changes as market prices change. For purposes of the table above, current purchase prices have been used to quantify total commitments.

## Capital Leases

We have capital lease obligations primarily for certain equipment and buildings. These obligations are payable over the next 16 years.

## Operating Leases

We have operating leases primarily comprised of leases for transportation vehicles, warehouse facilities, office space, and machinery and equipment.

## Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to changes in interest rates and foreign currency exchange rates because we finance certain operations through long- and short-term borrowings and denominate our transactions in a variety of foreign currencies. Changes in these rates may have an impact on future cash flows and earnings. We manage these risks through normal operating and financing activities and, when deemed appropriate, through the use of derivative financial instruments.

We have policies governing our use of derivative instruments, and we do not enter into financial instruments for trading or speculative purposes.

By using derivative instruments, we are subject to credit and market risk. The derivative instruments are booked to our balance sheet at fair market value and reflect the asset or (liability) position as of September 30, 2015. If a counterparty fails to fulfill its performance obligations under a derivative contract, our exposure will equal the fair value of the derivative. Generally, when the fair value of a derivative contract is positive, the counterparty owes Cabot, thus creating a payment risk for Cabot. We minimize counterparty credit (or repayment) risk by entering into these transactions with major financial institutions of investment grade credit rating. As of September 30, 2015, the counterparty that we had executed derivatives with was rated AA- by Standard and Poor's. Our exposure to market risk is not hedged in a manner that completely eliminates the effects of changing market conditions on earnings or cash flow.

## Foreign Currency Risk

Our international operations are subject to certain risks, including currency exchange rate fluctuations and government actions. Foreign currency exposures also relate to assets and liabilities denominated in foreign currencies other than the functional currency of a given subsidiary as well as the risk that currency fluctuations could affect the dollar value of future cash flows generated in foreign currencies. Accordingly, we use short-term forward contracts to reduce the exposure to foreign currency risk. At September 30, 2015, we had $2 million in net notional foreign currency contracts, which were denominated in British pound sterling and Czech koruna. These forwards had a fair value of less than $1 million as of September 30, 2015.



In certain situations where we have a long-term commitment denominated in a foreign currency we may enter into appropriate financial instruments in accordance with our risk management policy to hedge future cash flow exposures.

The primary currencies for which we have exchange rate exposure are the Euro, the Yen and the Brazilian Real. In fiscal year 2015, the unfavorable impact from foreign currency translations on our business segment EBIT was $20 million, affecting most significantly the results of the Performance Chemicals segment. This was largely from the depreciation of the Euro versus the U.S. dollar, which depreciated by 13% from September 30, 2014 to September 30, 2015, and the Yen versus the U.S. dollar, which fiscal 2015 related to the translation of monetary assets and liabilities, largely attributable to the depreciation of the Brazilian Real by 66% from September 30, 2014 to September 30, 2015.



## INDEX TO FINANCIAL STATEMENTS

Description Page
(1) Consolidated Statements of Operations for each of the fiscal years ended September 30, 2015, 2014, and 2013 ..... 44
(2) Consolidated Statements of Comprehensive (Loss) Income for each of the fiscal years ended September 30, 2015, 2014, and 2013 ..... 45
(3) Consolidated Balance Sheets at September 30, 2015 and 2014 ..... 46
(4) Consolidated Statements of Cash Flows for each of the fiscal years ended September 30, 2015, 2014, and 2013 ..... 48
(5) Consolidated Statements of Changes in Stockholders' Equity for each of the fiscal years ended September 30, 2015, 2014, and 2013 ..... 49
(6) Notes to the Consolidated Financial Statements ..... 52
(7) Report of Independent Registered Public Accounting Firm ..... 93



## CABOT CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(In millions, except per share amounts)</td></tr><tr><td>Net sales and other operating revenues</td><td>$     2,871</td><td>$     3,647</td><td>$     3,456</td><td></td></tr><tr><td>Cost of sales</td><td>2,286</td><td>2,926</td><td>2,823</td><td></td></tr><tr><td>Gross profit</td><td>585</td><td>721</td><td>633</td><td></td></tr><tr><td>Selling and administrative expenses</td><td>282</td><td>326</td><td>297</td><td></td></tr><tr><td>Research and technical expenses</td><td>58</td><td>60</td><td>68</td><td></td></tr><tr><td>Purification Solutions long-lived assets impairment charge (Note G)</td><td>210</td><td>—</td><td>—</td><td></td></tr><tr><td>Purification Solutions goodwill impairment charge (Note G)</td><td>352</td><td>—</td><td>—</td><td></td></tr><tr><td>(Loss) income from operations</td><td>(317)</td><td>335</td><td>268</td><td></td></tr><tr><td>Interest and dividend income</td><td>4</td><td>3</td><td>5</td><td></td></tr><tr><td>Interest expense</td><td>(53)</td><td>(55)</td><td>(62)</td><td></td></tr><tr><td>Other (expense) income</td><td>(11)</td><td>25</td><td>(1)</td><td></td></tr><tr><td>(Loss) income from continuing operations before income taxes and equity in earnings of affiliated companies</td><td>(377)</td><td>308</td><td>210</td><td></td></tr><tr><td>Benefit (provision) for income taxes</td><td>45</td><td>(92)</td><td>(60)</td><td></td></tr><tr><td>Equity in earnings of affiliated companies, net of tax</td><td>4</td><td>—</td><td>11</td><td></td></tr><tr><td>(Loss) income from continuing operations</td><td>(328)</td><td>216</td><td>161</td><td></td></tr><tr><td>Income (loss) from discontinued operations, net of tax of \)-, $2 and $(6)</td><td>2</td><td>2</td><td>(1)</td><td></td></tr><tr><td>Net (loss) income</td><td>(326)</td><td>218</td><td>160</td><td></td></tr><tr><td>Net income attributable to noncontrolling interests, net of tax of $5, $5 and $5</td><td>8</td><td>19</td><td>7</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (334)</td><td>$ 199</td><td>$ 153</td><td></td></tr><tr><td>Weighted-average common shares outstanding, in millions:</td><td></td><td></td><td></td><td></td></tr><tr><td>Basic</td><td>63.4</td><td>64.4</td><td>63.8</td><td></td></tr><tr><td>Diluted</td><td>63.4</td><td>65.1</td><td>64.5</td><td></td></tr><tr><td>(Loss) income per common share:</td><td></td><td></td><td></td><td></td></tr><tr><td>Basic:</td><td></td><td></td><td></td><td></td></tr><tr><td>(Loss) income from continuing operations attributable to Cabot Corporation</td><td>$ (5.29)</td><td>$ 3.04</td><td>$ 2.39</td><td></td></tr><tr><td>Income (loss) from discontinued operations</td><td>$ 0.02</td><td>0.02</td><td>(0.01)</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (5.27)</td><td>$ 3.06</td><td>$ 2.38</td><td></td></tr><tr><td>Diluted:</td><td></td><td></td><td></td><td></td></tr><tr><td>(Loss) income from continuing operations attributable to Cabot Corporation</td><td>$ (5.29)</td><td>$ 3.01</td><td>$ 2.37</td><td></td></tr><tr><td>Income (loss) from discontinued operations</td><td>$ 0.02</td><td>0.02</td><td>(0.01)</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (5.27)</td><td>$ 3.03</td><td>$ 2.36</td><td></td></tr><tr><td>Dividends per common share</td><td>$ 0.88</td><td>$ 0.84</td><td>$ 0.80</td><td></td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



## CABOT CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(In millions)</td></tr><tr><td>Net (loss) income</td><td>$</td><td>(326)</td><td>$</td><td>218</td></tr><tr><td>Other comprehensive (loss) income, net of tax</td><td></td><td></td><td></td><td></td></tr><tr><td>Foreign currency translation adjustment (net of tax (benefit) provision of $3, $10, $12)</td><td></td><td>(270)</td><td></td><td>(131)</td></tr><tr><td>Unrealized holding gains (losses) arising during the period (net of tax provision of \)—, \(—, $1)</td><td></td><td>—</td><td></td><td>—</td></tr><tr><td>Pension and other postretirement benefit liability adjustments</td><td></td><td></td><td></td><td></td></tr><tr><td>Pension and other postretirement benefit liability adjustments arising during the period (net of tax provision (benefit) of $5, $1, $13)</td><td></td><td>28</td><td></td><td>(40)</td></tr><tr><td>Amortization of net loss and prior service credit included in net periodic pension cost (net of tax provision of \)—, \(—, \)—)</td><td></td><td>3</td><td></td><td>—</td></tr><tr><td>Other comprehensive (loss) income</td><td></td><td>(239)</td><td></td><td>(171)</td></tr><tr><td>Comprehensive (loss) income</td><td></td><td>(565)</td><td></td><td>47</td></tr><tr><td>Net income attributable to noncontrolling interests, (net of tax provision of $5, $5, $5)</td><td></td><td>8</td><td></td><td>19</td></tr><tr><td>Noncontrolling interests foreign currency translation adjustment</td><td></td><td>(4)</td><td></td><td>(4)</td></tr><tr><td>Comprehensive income attributable to noncontrolling interests</td><td></td><td>4</td><td></td><td>15</td></tr><tr><td>Comprehensive (loss) income attributable to Cabot Corporation</td><td>$</td><td>(569)</td><td>$</td><td>32</td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



## CABOT CORPORATION
CONSOLIDATED BALANCE SHEETS
ASSETS

<table><tr><td rowspan="3"></td><td colspan="2">September 30</td></tr><tr><td>2015</td><td>2014</td></tr><tr><td colspan="2">(In millions, except share and per share amounts)</td></tr><tr><td>Current assets:</td><td></td><td></td></tr><tr><td>Cash and cash equivalents</td><td>$ 77</td><td>$ 67</td></tr><tr><td>Accounts and notes receivable, net of reserve for doubtful accounts of $7 and $7</td><td>477</td><td>688</td></tr><tr><td>Inventories</td><td>397</td><td>498</td></tr><tr><td>Prepaid expenses and other current assets</td><td>54</td><td>69</td></tr><tr><td>Deferred income taxes</td><td>43</td><td>42</td></tr><tr><td>Total current assets</td><td>1,048</td><td>1,364</td></tr><tr><td>Property, plant and equipment</td><td>3,385</td><td>3,710</td></tr><tr><td>Accumulated depreciation</td><td>(2,002)</td><td>(2,129)</td></tr><tr><td>Net property, plant and equipment</td><td>1,383</td><td>1,581</td></tr><tr><td>Goodwill</td><td>154</td><td>536</td></tr><tr><td>Equity affiliates</td><td>57</td><td>68</td></tr><tr><td>Intangible assets, net</td><td>153</td><td>347</td></tr><tr><td>Assets held for rent</td><td>86</td><td>56</td></tr><tr><td>Deferred income taxes</td><td>152</td><td>80</td></tr><tr><td>Other assets</td><td>42</td><td>52</td></tr><tr><td>Total assets</td><td>$ 3,075</td><td>$ 4,084</td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



## CABOT CORPORATION
CONSOLIDATED BALANCE SHEETS
LIABILITIES AND STOCKHOLDERS' EQUITY

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td>2014</td><td></td></tr><tr><td colspan="3">(In millions, except share and per share amounts)</td></tr><tr><td>Current liabilities:</td><td></td><td></td><td></td></tr><tr><td>Notes payable</td><td>$ 22</td><td>$ 44</td><td></td></tr><tr><td>Accounts payable and accrued liabilities</td><td>389</td><td>512</td><td></td></tr><tr><td>Income taxes payable</td><td>28</td><td>49</td><td></td></tr><tr><td>Deferred income taxes</td><td>1</td><td>1</td><td></td></tr><tr><td>Current portion of long-term debt</td><td>1</td><td>24</td><td></td></tr><tr><td>Total current liabilities</td><td>441</td><td>630</td><td></td></tr><tr><td>Long-term debt</td><td>970</td><td>1,004</td><td></td></tr><tr><td>Deferred income taxes</td><td>59</td><td>68</td><td></td></tr><tr><td>Other liabilities</td><td>240</td><td>291</td><td></td></tr><tr><td>Redeemable Preferred Stock</td><td>27</td><td>27</td><td></td></tr><tr><td>Commitments and contingencies (Note T)</td><td></td><td></td><td></td></tr><tr><td>Stockholders&#x27; equity:</td><td></td><td></td><td></td></tr><tr><td>Preferred stock:</td><td></td><td></td><td></td></tr><tr><td>Authorized: 2,000,000 shares of $1 par value</td><td></td><td></td><td></td></tr><tr><td>Issued and Outstanding: None and none</td><td>—</td><td>—</td><td></td></tr><tr><td>Common stock:</td><td></td><td></td><td></td></tr><tr><td>Authorized: 200,000,000 shares of $1 par value</td><td></td><td></td><td></td></tr><tr><td>Issued: 62,704,966 and 64,634,731 shares</td><td></td><td></td><td></td></tr><tr><td>Outstanding 62,458,396 and 64,382,366 shares</td><td>63</td><td>64</td><td></td></tr><tr><td>Less cost of 246,570 and 252,365 shares of common treasury stock</td><td>(8)</td><td>(7)</td><td></td></tr><tr><td>Additional paid-in capital</td><td>—</td><td>49</td><td></td></tr><tr><td>Retained earnings</td><td>1,478</td><td>1,900</td><td></td></tr><tr><td>Accumulated other comprehensive loss</td><td>(299)</td><td>(64)</td><td></td></tr><tr><td>Total Cabot Corporation stockholders&#x27; equity</td><td>1,234</td><td>1,942</td><td></td></tr><tr><td>Noncontrolling interests</td><td>104</td><td>122</td><td></td></tr><tr><td>Total stockholders&#x27; equity</td><td>1,338</td><td>2,064</td><td></td></tr><tr><td>Total liabilities and stockholders&#x27; equity</td><td>$ 3,075</td><td>$ 4,084</td><td></td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



## CABOT CORPORATION
CONSOLIDATED STATEMENT OF CASH FLOWS

<table><tr><td rowspan="2"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td><td></td></tr><tr><td>Cash Flows from Operating Activities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Net (loss) income</td><td>$ (326)</td><td>$ 218</td><td>$ 160</td><td></td></tr><tr><td>Adjustments to reconcile net (loss) income to cash provided (used in) by operating activities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Depreciation and amortization</td><td>183</td><td>201</td><td>190</td><td></td></tr><tr><td>Purification Solutions long-lived asset impairment charge (Note G)</td><td>210</td><td>—</td><td>—</td><td></td></tr><tr><td>Purification Solutions goodwill impairment charge (Note G)</td><td>352</td><td>—</td><td>—</td><td></td></tr><tr><td>Deferred tax (benefit) provision</td><td>(86)</td><td>8</td><td>(9)</td><td></td></tr><tr><td>Gain on existing investment in NHUMO</td><td>—</td><td>(29)</td><td>—</td><td></td></tr><tr><td>Gain on sale of business</td><td>—</td><td>(4)</td><td>—</td><td></td></tr><tr><td>Employee benefit plan settlement</td><td>18</td><td>—</td><td></td><td></td></tr><tr><td>Equity in net income of affiliated companies</td><td>(4)</td><td>—</td><td>(11)</td><td></td></tr><tr><td>Non-cash compensation</td><td>12</td><td>14</td><td>16</td><td></td></tr><tr><td>Other non-cash expense</td><td>6</td><td>22</td><td>18</td><td></td></tr><tr><td>Changes in assets and liabilities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Accounts and notes receivable</td><td>154</td><td>(54)</td><td>34</td><td></td></tr><tr><td>Inventories</td><td>58</td><td>(56)</td><td>64</td><td></td></tr><tr><td>Prepaid expenses and other current assets</td><td>16</td><td>2</td><td>5</td><td></td></tr><tr><td>Accounts payable and accrued liabilities</td><td>(75)</td><td>(29)</td><td>(18)</td><td></td></tr><tr><td>Income taxes payable</td><td>(21)</td><td>15</td><td>(29)</td><td></td></tr><tr><td>Other liabilities</td><td>(17)</td><td>(14)</td><td>(11)</td><td></td></tr><tr><td>Cash dividends received from equity affiliates</td><td>14</td><td>25</td><td>8</td><td></td></tr><tr><td>Other</td><td>5</td><td>(4)</td><td>2</td><td></td></tr><tr><td>Cash provided by operating activities</td><td>499</td><td>315</td><td>419</td><td></td></tr><tr><td>Cash Flows from Investing Activities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Additions to property, plant and equipment</td><td>(141)</td><td>(171)</td><td>(264)</td><td></td></tr><tr><td>Proceeds from notes receivable from sales of business</td><td>—</td><td>20</td><td>—</td><td></td></tr><tr><td>Receipts from notes receivable from sale of business</td><td>—</td><td>215</td><td>39</td><td></td></tr><tr><td>Change in assets held for rent</td><td>(21)</td><td>(7)</td><td>(2)</td><td></td></tr><tr><td>Cash paid for acquisition of business, net of cash acquired of $7</td><td>—</td><td>(73)</td><td>—</td><td></td></tr><tr><td>Cash used in investing activities</td><td>(162)</td><td>(16)</td><td>(227)</td><td></td></tr><tr><td>Cash Flows from Financing Activities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Borrowings under financing arrangements</td><td>—</td><td>13</td><td>6</td><td></td></tr><tr><td>Repayments under financing arrangements</td><td>(3)</td><td>(17)</td><td>(33)</td><td></td></tr><tr><td>Decrease in notes payable, net</td><td>—</td><td>(4)</td><td>(12)</td><td></td></tr><tr><td>(Repayments) proceeds from issuance of commercial paper, net</td><td>(18)</td><td>(211)</td><td>241</td><td></td></tr><tr><td>Proceeds from long-term debt, net of issuance costs</td><td>—</td><td>17</td><td>117</td><td></td></tr><tr><td>Repayments of long-term debt</td><td>(57)</td><td>(23)</td><td>(442)</td><td></td></tr><tr><td>Settlement of derivatives</td><td>—</td><td>—</td><td>(31)</td><td></td></tr><tr><td>Proceeds from cash contributions received from noncontrolling stockholders</td><td>—</td><td>—</td><td>13</td><td></td></tr><tr><td>Purchases of common stock</td><td>(101)</td><td>(18)</td><td>(6)</td><td></td></tr><tr><td>Proceeds from sales of common stock</td><td>6</td><td>14</td><td>9</td><td></td></tr><tr><td>Cash dividends paid to noncontrolling interests</td><td>(27)</td><td>(19)</td><td>(17)</td><td></td></tr><tr><td>Cash dividends paid to common stockholders</td><td>(56)</td><td>(54)</td><td>(51)</td><td></td></tr><tr><td>Cash used in financing activities</td><td>(256)</td><td>(302)</td><td>(206)</td><td></td></tr><tr><td>Effects of exchange rate changes on cash</td><td>(71)</td><td>(25)</td><td>(11)</td><td></td></tr><tr><td>Increase (decrease) in cash and cash equivalents</td><td>10</td><td>(28)</td><td>(25)</td><td></td></tr><tr><td>Cash and cash equivalents at beginning of year</td><td>67</td><td>95</td><td>120</td><td></td></tr><tr><td>Cash and cash equivalents at end of year</td><td>$ 77</td><td>$ 67</td><td>$ 95</td><td></td></tr><tr><td>Income taxes paid</td><td>78</td><td>53</td><td>84</td><td></td></tr><tr><td>Interest paid</td><td>42</td><td>47</td><td>51</td><td></td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements



CABOT CORPORATION
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

<table><tr><td rowspan="2">2013</td><td rowspan="2">Common stock, Net or treasury stock</td><td colspan="2">Additional Paid-in Capital</td><td colspan="2">Retained Earnings</td><td rowspan="2">Accumulated Other Comprehensive Income (loss)</td><td rowspan="2">Total Stockholders&#x27; Equity</td><td rowspan="2">Non-controlling Interests</td><td rowspan="2">Total Stockholders&#x27; Equity</td></tr><tr><td>Shares</td><td>Cost</td><td>$</td><td>$</td></tr><tr><td>Balance at September 30, 2012</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net income attributable to Cabot Corporation</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net income attributable to non-controlling interests</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total other comprehensive income</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Contribution from noncontrolling interests</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncontrolling interest - dividends</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash dividends paid to common stockholders</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Issuance of stock under employee compensation plans</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Amortization of share-based compensation</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Purchases and retirement of common stock</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Principal payment by Employee Stock Ownership Plan under parachuted plan</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Balance at September 30, 2013</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



CABOT CORPORATION
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

<table><tr><td rowspan="2">2014</td><td rowspan="2">Common Stock, Net or Treasury Stock</td><td rowspan="2">Additional Paid-in Capital</td><td colspan="2">Accumulated Other Comprehensive Income (Loss)</td><td rowspan="2">Deferred Employee Benefits</td><td rowspan="2">Accumulated Other Comprehensive Income (Loss)</td><td rowspan="2">Non-Controlling Interests</td><td rowspan="2">Total Stockholders&#x27; Equity</td></tr><tr><td>Cost</td><td>Retained Earnings</td></tr><tr><td>Balance at September 30, 2013</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net income attributable to Cabot Corporation</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net income attributable to non-controlling interests</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total other comprehensive loss</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncontrolling interest - other</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Nonsolidating interest - dividends</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash dividends paid to common stockholders</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Issuance of stock to common stockholders</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><tr><td>Plan</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Adjustment of share-based compensation</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Purchase and retirement of common stock</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Principal payment by Employee Stock Ownership Plan</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>under guaranteed loan</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Balance at September 30, 2014</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY
Years Ended September 30

<table><tr><td rowspan="2">2015</td><td colspan="5">Accumulated Other Comprehensive Income (Loss)</td><td rowspan="2">Total Stockholders&#x27; Equity</td><td rowspan="2">Total Stockholders&#x27; Equity</td></tr><tr><td>Shares</td><td>Cost</td><td>57</td><td>49</td><td>1,900</td><td>Non-controlling interest</td></tr><tr><td>Balance at September 30, 2014</td><td>64,383</td><td>5</td><td>57</td><td>5</td><td>1,900</td><td>(64)</td><td>5</td></tr><tr><td>Net loss attributable to Cabot Corporation</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net income attributable to non-controlling interests</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total other comprehensive loss</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncontrolling interest - dividends</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash dividends paid to common stockholders</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Class of stock under employee compensation plans</td><td>450</td><td>—</td><td>—</td><td>6</td><td>—</td><td>(56)</td><td>(56)</td></tr><tr><td>Amortization of share-based compensation</td><td>(2,375)</td><td>(2)</td><td>—</td><td>12</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Purchase and retirement of common stock</td><td>62,458</td><td>5</td><td>55</td><td>5</td><td>1,478</td><td>(299)</td><td>5</td></tr><tr><td>Balance at September 30, 2015</td><td>62,958</td><td>5</td><td>60</td><td>5</td><td>1,478</td><td>(299)</td><td>5</td></tr></table>

The accompanying notes are an integral part of these consolidated financial statements.



# Notes to Consolidated Financial Statements

## Note A. Significant Accounting Policies

The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States. The significant accounting policies of Cabot Corporation (“Cabot” or “the Company”) are described below.

In November 2013, the Company purchased all of Grupo Kuo S.A.B. de C.V.'s ("KUO") common stock in NHUMO, S.A. de C.V. ("NHUMO"), a carbon black joint venture between the Company and KUO in Mexico, which represented approximately 60% of the outstanding common stock of NHUMO (the "NHUMO transaction"). Prior to this transaction, the Company owned approximately 40% of the outstanding common stock of NHUMO, and the NHUMO entity was accounted for as an equity affiliate of the Company. The financial position, results of operations and cash flows of NHUMO are included in the Company's consolidated financial statements from the date of acquisition.

In July 2014, the Company completed the sale of its Security Materials business. The results of this business are reflected as discontinued operations in the Consolidated Statements of Operations.

In the first quarter of fiscal 2015, the Company realigned its business reporting structure into four segments that consist of Reinforcement Materials, Performance Chemicals, Purification Solutions and Specialty Fluids. The new structure is aligned with senior management changes and it better leverages Cabot's global activities across common customer applications, production, and research and development activities. Prior period segment results have been recast to reflect the realignment.

Unless otherwise indicated, all disclosures and amounts in the Notes to Consolidated Financial Statements relate to the Company’s continuing operations.

Certain amounts in prior years’ Consolidated Statement of Cash Flows have been reclassified to conform to the current presentation.

## Principles of Consolidation

The consolidated financial statements include the accounts of Cabot and its wholly-owned subsidiaries and majority-owned and controlled U.S. and non-U.S. subsidiaries. Additionally, Cabot considers consolidation of entities over which control is achieved through means other than voting rights, of which there were none in the periods presented. Intercompany transactions have been eliminated in consolidation.

## Cash and Cash Equivalents

Cash equivalents include all highly liquid investments with a maturity of three months or less at date of acquisition. Cabot continually assesses the liquidity of cash equivalents and, as of September 30, 2015, has determined that they are readily convertible to cash.

## Inventories

Inventories are stated at the lower of cost or market. The cost of all carbon black inventories in the U.S. is determined using the last-in, first-out ("LIFO") method. The cost of Specialty Fluids inventories, which are classified as assets held for rent, is determined using the average cost method. The cost of other U.S. and non-U.S. inventories is determined using the first-in, first-out ("FIFO") method.

Cabot reviews inventory for both potential obsolescence and potential declines in anticipated selling prices. In this review, the Company makes assumptions about the future demand for and market value of the inventory, and based on these assumptions estimates the amount of any obsolete, unmarketable, slow moving, or overvalued inventory. Cabot writes down the value of these inventories by an amount equal to the difference between the cost of the inventory and its estimated net realizable value.

## Investments

The Company has investments in equity affiliates and marketable securities. As circumstances warrant, all investments are subject to periodic impairment reviews. Unless consolidation is required, investments in equity affiliates, where Cabot generally owns between 20% and 50% of the affiliate, are accounted for using the equity method. Cabot records its share of the equity affiliate's results of operations based on its percentage of ownership of the affiliate. Dividends declared from equity affiliates are a return on investment and are recorded as a reduction to the equity investment value. At September 30, 2015 and 2014, Cabot had equity affiliate investments of $57 million and $68 million, respectively. Dividends declared and received from these investments were $14 million, $25 million and $8 million in fiscal 2015, 2014 and 2013, respectively.



All investments in marketable securities are classified as available-for-sale and are recorded at fair value with the corresponding unrealized holding gains or losses, net of taxes, recorded as a separate component of Other comprehensive loss within stockholders' equity. Unrealized losses that are determined to be other-than-temporary, based on current and expected market conditions, are recognized in earnings. The fair value of marketable securities is determined based on quoted market prices at the balance sheet dates. The cost of marketable securities sold is determined by the specific identification method. The Company's investment in marketable securities was immaterial as of both September 30, 2015 and 2014.

## Intangible Assets and Goodwill Impairment

The Company records tangible and intangible assets acquired and liabilities assumed in business combinations under the acquisition method of accounting. Amounts paid for an acquisition are allocated to the assets acquired and liabilities assumed based on their fair values at the date of acquisition. Goodwill is comprised of the purchase price of business acquisitions in excess of the fair value assigned to the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but is reviewed for impairment annually as of May 31, or when events or changes in the business environment indicate that the carrying value of the reporting unit may exceed its fair value. A reporting unit, for the purpose of the impairment test, is at or below the operating segment level, and constitutes a business for which discrete financial information is available and regularly reviewed by segment management. The reporting units with goodwill balances are Reinforcement Materials, Purification Solutions, and Fumed Metal Oxides. The separate businesses included within Performance Chemicals are considered separate reporting units. As such, the goodwill balance relative to Performance Chemicals is recorded in the Fumed Metal Oxides reporting unit.

For the purpose of the goodwill impairment test, the Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If an initial qualitative assessment identifies that it is more likely than not that the carrying value of a reporting unit exceeds its estimated fair value, an additional quantitative evaluation is performed under the two-step impairment test. Alternatively, the Company may elect to proceed directly to the quantitative goodwill impairment test. If based on the quantitative evaluation the fair value of the reporting unit is less than its carrying amount, the Company performs an analysis of the fair value of all assets and liabilities of the reporting unit. If the implied fair value of the reporting unit's goodwill is determined to be less than its carrying amount, an impairment is recognized for the difference. The fair value of a reporting unit is based on discounted estimated future cash flows. The fair value is also benchmarked against a market approach using the guideline public companies method. The assumptions used to estimate fair value include management's best estimates of future growth rates, operating cash flows, capital expenditures and discount rates over an estimate of the remaining operating period at the reporting unit level. Should the fair value of any of the Company's reporting units decline below its carrying amount because of reduced operating performance, market declines, changes in the discount rate, or other conditions, charges for impairment may be necessary. Based on the Company's most recent annual goodwill impairment test performed as of May 31, 2015, the fair values of the Reinforcement Materials and Fumed Metal Oxides reporting units were substantially in excess of their carrying values. The fair value of the Purification Solutions reporting unit was less than its carrying amount. Refer to Note G for details on the Purification Solutions goodwill impairment test and the resulting impairment charge recorded in the third fiscal quarter of 2015. Due to the impairment recorded, the fair value of the Purification Solutions reporting unit was insignificantly higher than its carrying value. No events occurred in the fourth fiscal quarter of 2015 that would suggest that it is more likely than not that the carrying values of any of our reporting units exceeded its fair value.

The Company uses assumptions and estimates in determining the fair value of assets acquired and liabilities assumed in a business combination. The determination of the fair value of intangible assets requires the use of significant judgment with regard to assumptions used in the valuation model. The Company estimates the fair value of identifiable acquisition-related intangible assets principally based on projections of cash flows that will arise from these assets. The projected cash flows are discounted to determine the fair value of the assets at the dates of acquisition.

Definite-lived intangible assets, which are comprised of customer relationships and developed technologies, are amortized over their estimated useful lives and are reviewed for impairment when indication of potential impairment exists, such as a significant reduction in cash flows associated with the assets. The Company evaluates indefinite-lived intangible assets, which are comprised of the trademarks of Purification Solutions, for impairment annually or when events occur or circumstances change that may reduce the fair value of the asset below its carrying amount. The annual review is performed as of May 31. The Company may first perform a qualitative assessment to determine whether it is necessary to perform the quantitative impairment test or bypass the qualitative assessment and proceed directly to performing the quantitative impairment test. The quantitative impairment test is based on discounted estimated future cash flows. The assumptions used to estimate fair value include management's best estimates of future growth rates and discount rates over an estimate of the remaining operating period at the unit of accounting level. Refer to Note G for details on the impairment test performed on intangible assets of the Purification Solutions reporting unit and the resulting impairment charges recorded. Effective in the third quarter of 2015 and as a part of the impairment assessment performed, the Company determined that the trademarks for Purification Solutions no longer have an indefinite life.



## Long-lived Assets Impairment

The Company’s long-lived assets primarily include property, plant and equipment, intangible assets, long-term investments and assets held for rent. The carrying values of long-lived assets are reviewed for impairment whenever events or changes in business circumstances indicate that the carrying amount of an asset may not be recoverable.

To test for impairment of assets, the Company generally uses a probability-weighted estimate of the future undiscounted net cash flows of the assets over their remaining lives to determine if the value of the asset is recoverable. Long-lived assets are grouped with other assets and liabilities at the lowest level for which independent identifiable cash flows are determinable.

An asset impairment is recognized when the carrying value of the asset is not recoverable based on the analysis described above, in which case the asset is written down to its fair value. If the asset does not have a readily determinable market value, a discounted cash flow model may be used to determine the fair value of the asset. In circumstances when an asset does not have separate identifiable cash flows, an impairment charge is recorded when the Company no longer intends to use the asset. Refer to Note G regarding the results of the impairment test performed on the long-lived assets of the Purification Solutions segment.

## Property, Plant and Equipment

Property, plant and equipment are recorded at cost. Depreciation of property, plant and equipment is calculated using the straight-line method over the estimated useful lives. The depreciable lives for buildings, machinery and equipment, and other fixed assets are twenty to twenty-five years, ten to twenty-five years, and three to twenty-five years, respectively. The cost and accumulated depreciation for property, plant and equipment sold, retired, or otherwise disposed of are removed from the Consolidated Balance Sheets and resulting gains or losses are included in earnings in the Consolidated Statements of Operations. Expenditures for repairs and maintenance are charged to expenses as incurred. Expenditures for major renewals and betterments, which significantly extend the useful lives of existing plant and equipment, are capitalized and depreciated.

Cabot capitalizes interest costs when they are part of the historical cost of acquiring and constructing certain assets that require a period of time to prepare for their intended use. During fiscal 2015, 2014 and 2013, Cabot capitalized less than $1 million, $3 million and $5 million of interest costs, respectively. These amounts will be amortized over the lives of the related assets.

## Assets Held for Rent

Assets held for rent represent Specialty Fluids cesium formate product that is available to customers in the normal course of business and $11 million of ore that has been mined and will be converted into cesium formate. Assets held for rent are stated at average cost.

## Asset Retirement Obligations

Cabot estimates incremental costs for special handling, removal and disposal of materials that may or will give rise to conditional asset retirement obligations (“ARO”) and then discounts the expected costs back to the current year using a credit adjusted risk free rate. Cabot recognizes ARO liabilities and costs when the timing and/or settlement can be reasonably estimated. The ARO reserves were $20 million and $15 million at September 30, 2015 and 2014, respectively.

## Foreign Currency Translation

The functional currency of the majority of Cabot’s foreign subsidiaries is the local currency in which the subsidiary operates. Assets and liabilities of foreign subsidiaries are translated into U.S. dollars at exchange rates in effect at the balance sheet dates. Income and expense items are translated at average monthly exchange rates during the year. Unrealized currency translation adjustments are included as a separate component of Accumulated other comprehensive (loss) income within stockholders’ equity.

Realized and unrealized foreign currency gains and losses arising from transactions denominated in currencies other than the subsidiary’s functional currency are reflected in earnings with the exception of (i) intercompany transactions considered to be of a long-term investment nature; and (ii) foreign currency borrowings designated as net investment hedges. Gains or losses arising from these transactions are included as a component of other comprehensive (loss) income. In fiscal 2015, 2014 and 2013, net foreign currency transaction losses of $8 million, losses of $2 million, and gains of $2 million, respectively, are included in Other (expense) income in the Consolidated Statements of Operations.



## Financial Instruments

Cabot’s financial instruments consist primarily of cash and cash equivalents, accounts and notes receivable, investments, accounts payable and accrued liabilities, short-term and long-term debt, and derivative instruments. The carrying values of Cabot’s financial instruments approximate fair value with the exception of fixed rate long-term debt, which is recorded at amortized cost. The fair values of the Company’s financial instruments are based on quoted market prices, if such prices are available. In situations where quoted market prices are not available, the Company relies on valuation models to derive fair value. Such valuation takes into account the ability of the financial counterparty to perform.

Cabot uses derivative financial instruments primarily for purposes of hedging the exposures to fluctuations in foreign currency exchange rates, which exist as part of its on-going business operations. Cabot does not enter into derivative contracts for speculative purposes, nor does it hold or issue any derivative contracts for trading purposes. All derivatives are recognized on the Consolidated Balance Sheets at fair value. Where Cabot has a legal right to offset derivative settlements under a master netting agreement with a counterparty, derivatives with that counterparty are presented on a net basis. The changes in the fair value of derivatives are recorded in either earnings or Accumulated other comprehensive (loss) income, depending on whether or not the instrument is designated as part of a hedge transaction and, if designated as part of a hedge transaction, the type of hedge transaction. The gains or losses on derivative instruments reported in Accumulated other comprehensive (loss) income are reclassified to earnings in the period in which earnings are affected by the underlying hedged item. The ineffective portion of all hedges is recognized in earnings during the period in which the ineffectiveness occurs.

In accordance with Cabot’s risk management strategy, the Company may enter into certain derivative instruments that may not be designated as hedges for hedge accounting purposes. Although these derivatives are not designated as hedges, the Company believes that such instruments are closely correlated with the underlying exposure, thus managing the associated risk. The Company records in earnings the gains or losses from changes in the fair value of derivative instruments that are not designated as hedges. Cash movements associated with these instruments are presented in the Consolidated Statement of Cash Flows as Cash Flows from Operating Activities because the derivatives are designed to mitigate risk to the Company’s cash flow from operations. The cash flows related to the principal amount of outstanding debt instruments are presented in the Cash Flows from Financing Activities section of the Consolidated Statement of Cash Flows.

## Revenue Recognition

Cabot recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable and collectability is reasonably assured. Cabot generally is able to ensure that products meet customer specifications prior to shipment. If the Company is unable to determine that the product has met the specified objective criteria prior to shipment or if title has not transferred because of sales terms, the revenue is considered “unearned” and is deferred until the revenue recognition criteria are met.

Shipping and handling charges related to sales transactions are recorded as sales revenue when billed to customers or included in the sales price. Taxes collected on sales to customers are excluded from revenues.

The following table shows the relative size of the revenue recognized in each of the Company’s reportable segments

<table><tr><td rowspan="2"></td><td colspan="3">Years ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td></tr><tr><td>Reinforcement Materials</td><td>54%</td><td>59%</td><td>57%</td></tr><tr><td>Performance Chemicals</td><td>33%</td><td>29%</td><td>30%</td></tr><tr><td>Purification Solutions</td><td>11%</td><td>9%</td><td>10%</td></tr><tr><td>Specialty Fluids</td><td>2%</td><td>3%</td><td>3%</td></tr></table>

Cabot derives the substantial majority of its revenues from the sale of products in Reinforcement Materials and Performance Chemicals. Revenue from these products is typically recognized when the product is shipped and title and risk of loss have passed to the customer. The Company offers certain of its customers cash discounts and volume rebates as sales incentives. The discounts and volume rebates are recorded as a reduction in sales at the time revenue is recognized and are estimated based on historical experience and contractual obligations. Cabot periodically reviews the assumptions underlying its estimates of discounts and volume rebates and adjusts its revenues accordingly.

Revenue in Purification Solutions is typically recognized when the product is shipped and title and risk of loss have passed to the customer. For major activated carbon injection systems projects, revenue is recognized using the percentage-of-completion method.



Revenue in Specialty Fluids arises primarily from the rental of cesium formate. This revenue is recognized throughout the rental period based on the contracted rental terms. Customers are also billed and revenue is recognized, typically at the end of the job, for cesium formate product that is not returned. The Company also generates revenues from cesium formate sold outside of a rental process and revenue is recognized upon delivery of the fluid.

## Cost of Sales

Cost of sales consists of the cost of raw and packaging materials, direct manufacturing costs, depreciation, internal transfer costs, inspection costs, inbound and outbound freight and shipping and handling costs, plant purchasing and receiving costs and other overhead expenses necessary to manufacture the products.

## Accounts and Notes Receivable

Trade receivables are recorded at the invoiced amount and generally do not bear interest. Trade receivables in China may at certain times be settled with the receipt of bank issued non-interest bearing notes. These notes totaled 95 million Chinese Renminbi ("RMB") ($15 million) and 193 million RMB ($31 million) as of September 30, 2015 and 2014, respectively, and are included in accounts and notes receivable. Cabot periodically sells a portion of the trade receivables in China and other customer receivables at a discount and such sales are accounted for as asset sales. The Company does not have any continuing involvement with the notes after the sale. The difference between the proceeds from the sale and the carrying value of the receivables is recognized as a loss on the sale of receivables and is included in Other (expense) income in the accompanying Consolidated Statements of Operations. During each of fiscal 2015, 2014 and 2013, the Company recorded charges of $3 million, $3 million, and $4 million, respectively, for the sale of these receivables.

Cabot maintains allowances for doubtful accounts based on an assessment of the collectability of specific customer accounts, the aging of accounts receivable and other economic information on both a historical and prospective basis. Customer account balances are charged against the allowance when it is probable the receivable will not be recovered. There were no material changes in the allowance for any of the years presented. There is no material off-balance sheet credit exposure related to customer receivable balances.

## Stock-based Compensation

Cabot recognizes compensation expense for stock-based awards granted to employees using the fair value method. Under the fair value recognition provisions, stock-based compensation cost is measured at the grant date based on the fair value of the award, and is recognized as expense over the service period, which generally represents the vesting period, and includes an estimate of the awards that will be forfeited, and an estimate of what level of performance the Company will achieve for Cabot's performance-based stock awards. Cabot calculates the fair value of its stock options using the Black-Scholes option pricing model. The fair value of restricted stock units is determined using the closing price of Cabot stock on the day of the grant.

## Selling and Administrative Expenses

Selling and administrative expenses consist of salaries and fringe benefits of sales and office personnel, general office expenses and other expenses not directly related to manufacturing operations.

## Research and Technical Expenses

Research and technical expenses include salaries, equipment and material expenditures, and contractor fees and are expensed as incurred.

## Income Taxes

Deferred income taxes are determined based on the estimated future tax effects of differences between financial statement carrying amounts and the tax bases of existing assets and liabilities. Deferred tax assets are recognized to the extent that realization of those assets is considered to be more likely than not.

A valuation allowance is established for deferred taxes when it is more likely than not that all or a portion of the deferred tax assets will not be realized. Provisions are made for the U.S. income tax liability and additional non-U.S. taxes on the undistributed earnings of non-U.S. subsidiaries, except for amounts Cabot has designated to be indefinitely reinvested.

Cabot records benefits for uncertain tax positions based on an assessment of whether the position is more likely than not to be sustained by the taxing authorities. If this threshold is not met, no tax benefit of the uncertain tax position is recognized. If the threshold is met, the tax benefit that is recognized is the largest amount that is greater than 50% likely of being realized upon ultimate settlement. This analysis presumes the taxing authorities' full knowledge of the positions taken and all relevant facts, but does not consider the time value of money. The Company also accrues for interest and penalties on its uncertain tax positions and includes such charges in its income tax provision in the Consolidated Statements of Operations.



## Accumulated Other Comprehensive (Loss) Income

Accumulated other comprehensive (loss) income, which is included as a component of stockholders' equity, includes unrealized gains or losses on available-for-sale marketable securities and derivative instruments, currency translation adjustments in foreign subsidiaries, translation adjustments on foreign equity securities and minimum pension liability adjustments.

## Environmental Costs

Cabot accrues environmental costs when it is probable that a liability has been incurred and the amount can be reasonably estimated. When a single liability amount cannot be reasonably estimated, but a range can be reasonably estimated, Cabot accrues the amount that reflects the best estimate within that range or the low end of the range if no estimate within the range is better. The amount accrued reflects Cabot’s assumptions about remediation requirements at the contaminated site, the nature of the remedy, the outcome of discussions with regulatory agencies and other potentially responsible parties at multi-party sites, and the number and financial viability of other potentially responsible parties. Cabot does not reduce its estimated liability for possible recoveries from insurance carriers. Proceeds from insurance carriers are recorded when realized by either the receipt of cash or a contractual agreement.

## Use of Estimates

The preparation of consolidated financial statements in conformity with generally accepted accounting principles in the United States requires management to make certain estimates and assumptions that affect the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reported period. Actual results could differ from those estimates.

## Note B. Recent Accounting Pronouncements

In July 2013, the Financial Accounting Standards Board (“FASB”) issued a new standard related to the “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists”. The standard requires, unless certain conditions exist, an unrecognized tax benefit or a portion of an unrecognized tax benefit to be presented in the consolidated financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, similar to a tax loss or a tax credit carryforward. This standard is applicable for fiscal years beginning after December 15, 2013, and for interim periods within those years. The Company adopted this standard on October 1, 2014 and the implementation of the new standard did not have a material impact on its consolidated financial statements.

In April 2014, the FASB issued a new standard related to “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity”. The standard requires discontinued operations treatment for disposals of a component or group of components of a business that represents a strategic shift that has or will have a major impact on an entity’s operations or financial results and requires additional disclosures for discontinued operations and new disclosures for individually material disposal transactions that do not meet the definition of a discontinued operation. This standard is applicable for fiscal years beginning after December 15, 2014 and for interim periods within those years and early adoption is permitted, but only for disposals that have not been reported in consolidated financial statements previously issued. The Company will adopt this standard beginning on October 1, 2015 and does not expect it to have a material impact on its consolidated financial statements.

In May 2014, the FASB issued a new standard related to the “Revenue from Contracts with Customers” which amends the existing accounting standards for revenue recognition. The standard requires entities to recognize revenue when they transfer promised goods or services to customers in an amount that reflects the consideration the entity expects to be entitled to in exchange for those goods or services. This standard is applicable for fiscal years beginning after December 15, 2017 and for interim periods within those years and early adoption is permitted for the fiscal years beginning after December 15, 2016. The Company expects to adopt this standard on October 1, 2018. The Company is currently evaluating the impact the adoption of this standard may have on its consolidated financial statements.

In April 2015, the FASB issued a new standard simplifying the presentation of debt issuance costs by requiring debt issuance costs to be presented as a reduction of the corresponding debt liability. This will make the presentation of debt issuance costs consistent with the presentation of debt discounts or premiums. This standard is applicable for fiscal years beginning after December 15, 2015 and for interim periods within those years and early adoption is permitted. The Company expects to adopt this standard on October 1, 2016. The adoption of this standard is not expected to materially impact the Company’s consolidated financial statements.



## Note C. Acquisition of NHUMO

In November 2013, the Company purchased all of KUO’s common stock in the former NHUMO joint venture, which represented approximately 60% of the outstanding common stock of the joint venture. Prior to this transaction, the Company owned approximately 40% of the outstanding common stock of NHUMO, and the NHUMO entity was accounted for as an equity affiliate of the Company.

At the close of the transaction, the Company paid KUO $80 million in cash and NHUMO issued redeemable preferred stock to KUO with a redemption value of $25 million. The preferred stock accumulates dividends at a fixed rate of 6% annually and is redeemable at the option of KUO or the Company for $25 million starting in November 2018 or upon the occurrence of certain other conditions. Annual payment by NHUMO of the dividends is contingent on NHUMO achieving a minimum EBITDA (earnings before interest, taxes, depreciation and amortization) level and if such minimum EBITDA is not achieved in any year, the dividend will be accumulated and paid at the time the preferred shares are redeemed. The minimum EBITDA was achieved in both 2014 and 2015. A dividend payment of $1.5 million was made in December 2014 related to fiscal 2014 and a dividend payment of $1.5 million related to fiscal 2015 is due in December 2015. The preferred stock issued in connection with the transaction is not mandatorily redeemable and has embedded put and call rights at the fixed redemption price. Accordingly, the instrument is accounted for as a financing obligation and has been separately presented in the Consolidated Balance Sheets as a long-term liability. Upon acquisition, the Company began consolidating NHUMO into its consolidated financial statements. Prior to closing, the Company received a $14 million dividend from NHUMO.

The Company incurred acquisition costs of approximately $2 million in fiscal 2014, which are included in Selling and administrative expenses in the Consolidated Statements of Operations.

As of September 2014, the Company completed the valuation of its assets acquired and liabilities assumed. The allocation of the purchase price is based on the fair value of assets acquired and liabilities assumed, and Cabot’s previously held equity interest in NHUMO as of the acquisition date. The following table presents the components and allocation of the purchase price:

<table><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Assets</td><td></td></tr><tr><td>Current assets</td><td>$ 54</td></tr><tr><td>Property, plant and equipment</td><td>48</td></tr><tr><td>Other non-current assets</td><td>1</td></tr><tr><td>Intangible assets</td><td>63</td></tr><tr><td>Goodwill</td><td>45</td></tr><tr><td>Total assets acquired</td><td>211</td></tr><tr><td>Liabilities</td><td></td></tr><tr><td>Accounts payable, accruals and other liabilities</td><td>(20)</td></tr><tr><td>Deferred tax liabilities - long-term</td><td>(29)</td></tr><tr><td>Total liabilities assumed</td><td>(49)</td></tr><tr><td>Net assets acquired</td><td>$ 162</td></tr><tr><td>Cash consideration paid</td><td>80</td></tr><tr><td>Fair value of redeemable preferred stock</td><td>28</td></tr><tr><td>Previously held equity interest in NHUMO</td><td>54</td></tr><tr><td>Total</td><td>$ 162</td></tr></table>

As a result of the acquisition, the Company recorded a gain of $29 million for the difference between the carrying value and the fair value of the previously held equity interest in NHUMO, which was included in Other (expense) income in the first quarter of fiscal 2014. The fair value of $54 million for the previously held equity interest was determined based on the fair value of Cabot's pre-existing interest in NHUMO as adjusted for a control premium derived from synergies gained as a result of the Company obtaining control of NHUMO.

As part of the purchase price allocation, the Company determined that a separately identifiable intangible asset was customer relationships in the amount of $63 million, which is being amortized over a period of 20 years. The Company estimated the fair value of the identifiable acquisition-related intangible asset based on projections of cash flows that will arise from the asset. The projected cash flows are discounted to determine the fair value of the asset at the date of acquisition. The determination of the fair value of the intangible asset acquired required the use of significant judgment with regard to assumptions in the discounted cash flow model used.



The fair value of the redeemable preferred stock was determined based on a discounted cash flow model, using the expected timing of the cash flows and an appropriate discount rate.

The excess of the purchase price, which includes the cash consideration paid and the fair values of redeemable preferred stock and the previously held equity interest in NHUMO, over the fair value of the tangible net assets and intangible asset acquired, was recorded as goodwill. The goodwill recognized is attributable to the expected growth and operating synergies that the Company expects to realize from this acquisition. Goodwill generated from the acquisition is not deductible for tax purposes.

## Note D. Discontinued Operations

In July 2014, the Company sold its Security Materials business to SICPA SA. The Consolidated Statements of Operations for all periods presented have been recast to reflect the Security Materials business in discontinued operations.

In January 2012, the Company sold its Supermetals business to Global Advanced Metals Pty Ltd., an Australian company ("GAM") for $452 million, including cash consideration of $175 million received on the closing date and notes receivable ("GAM Notes") totaling $277 million that were payable at various dates through March 2014. In fiscal 2014, Cabot received the final payment on the GAM Notes in the amount of $215 million.

During fiscal 2015, Cabot recorded $2 million of income from discontinued operations related to sales of businesses that occurred in prior years.

## Note E. Inventories

Inventories, net of LIFO, obsolete, unmarketable and slow moving reserves, are as follows:

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Raw materials</td><td>$ 69</td><td>$ 111</td><td></td></tr><tr><td>Work in process</td><td>1</td><td>2</td><td></td></tr><tr><td>Finished goods</td><td>287</td><td>341</td><td></td></tr><tr><td>Other</td><td>40</td><td>44</td><td></td></tr><tr><td>Total</td><td>$ 397</td><td>$ 498</td><td></td></tr></table>

Inventories valued under the LIFO method comprised approximately 6% and 5% of total inventories at September 30, 2015 and 2014, respectively. At September 30, 2015 and 2014, the LIFO reserve was $30 million and $52 million, respectively. Other inventory is comprised of certain spare parts and supplies.

During fiscal 2015 and 2013, inventory quantities carried on a LIFO basis were decreased at the Company’s U.S. carbon black sites. In fiscal 2015, these reductions led to liquidations of LIFO inventory quantities and resulted in an increase of Cost of sales of $1 million and a decrease in consolidated Net income of $1 million ($0.01 per diluted common share). In fiscal 2013, these reductions led to liquidations of LIFO inventory quantities and resulted in a decrease of Cost of sales of $1 million and an increase in consolidated Net income of $1 million ($0.01 per diluted common share). No such reductions occurred in fiscal 2014.

Cabot reviews inventory for both potential obsolescence and potential loss of value periodically. In this review, Cabot makes assumptions about the future demand for and market value of the inventory and, based on these assumptions, estimates the amount of obsolete, unmarketable or slow moving inventory. Total inventory reserves were $20 million and $14 million, respectively, as of September 30, 2015 and 2014. During fiscal year 2015, the Company recorded a lower cost or market reserve in the amount of $6 million related to its Purification Solutions inventory held in Marshall, TX. This reserve reflects less favorable sales trends for activated carbon in mercury removal applications in the U.S., which continued into the fourth fiscal quarter of 2015.



## Note F. Property, Plant and Equipment

Property, plant and equipment consists of the following:

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Land and land improvements</td><td>$     154</td><td>$     132</td><td></td></tr><tr><td>Buildings</td><td>509</td><td>536</td><td></td></tr><tr><td>Machinery and equipment</td><td>2,391</td><td>2,593</td><td></td></tr><tr><td>Other</td><td>225</td><td>233</td><td></td></tr><tr><td>Construction in progress</td><td>106</td><td>216</td><td></td></tr><tr><td>Total property, plant and equipment</td><td>3,385</td><td>3,710</td><td></td></tr><tr><td>Less: accumulated depreciation</td><td>(2,002)</td><td>(2,129)</td><td></td></tr><tr><td>Net property, plant and equipment</td><td>$     1,383</td><td>$     1,581</td><td></td></tr></table>

Depreciation expense was $169 million, $184 million and $175 million for fiscal 2015, 2014 and 2013, respectively.

## Note G. Purification Solutions Goodwill and Long-Lived Assets Impairment Charges

During fiscal 2015 and as a result of the impairment tests performed on goodwill and long-lived assets of the Purification Solutions reporting unit, the Company recorded impairment charges and an associated tax benefit in the Consolidated Statements of Operations as follows:

<table><tr><td>Year Ended</td><td>September 30, 2015</td></tr><tr><td>(Dollars in millions)</td><td></td></tr><tr><td>Purification Solutions goodwill impairment charge</td><td>$ 352</td></tr><tr><td>Purification Solutions long-lived assets impairment charge</td><td>210</td></tr><tr><td>Provision (benefit) for income taxes</td><td>(80)</td></tr><tr><td>Impairment charges, after tax</td><td>$ 482</td></tr></table>

The future growth in the Purification Solutions segment is highly dependent on achieving the expected volumes and margins in the activated carbon based mercury removal business. These volumes and margins are highly dependent on demand for mercury removal products and the Company's successful realization of its anticipated share of volumes in this business. The expected demand for mercury removal products significantly depends on: (1) the implementation and enforcement of environmental laws and regulations, particularly those that would require U.S. based coal-fired electric utilities to reduce the quantity of air pollutants they release, including mercury, to comply with the Mercury and Air Toxics Standards ("MATS") issued by the U.S. Environmental Protection Agency ("EPA") and (2) other factors such as the anticipated usage of activated carbon in the coal-fired energy units. In November 2014, the U.S. Supreme Court agreed to consider whether the EPA appropriately considered costs in determining whether it is necessary and appropriate to regulate hazardous air pollutants emitted by electric utilities. On June 29, 2015, the U.S. Supreme Court held that the EPA unreasonably failed to consider costs in determining whether it is necessary and appropriate to regulate hazardous air pollutants emitted by coal-fired utilities, and remanded the case back to the U.S. Court of Appeals for the District of Columbia Circuit further proceedings.

The implementation period for the MATS regulations began in April 2015. With this recent implementation and associated customer and industry developments during the third fiscal quarter, as well as the U.S. Supreme Court’s ruling, the Company reassessed its previous estimates for expected growth in volumes, prices and margins in the Purification Solutions reporting unit. The main drivers of growth, including the size of the overall mercury removal industry, utility adoption rates, usage levels, and pricing, among others, were lowered from previous estimates. Based on these revised estimates and as part of step one of the annual impairment test, the Company determined that the estimated fair value of the Purification Solutions reporting unit was lower than the reporting unit’s carrying value. As such, the reporting unit failed step one of the goodwill impairment test.

In determining the fair value of the Purification Solutions reporting unit, the Company used an income approach (a discounted cash flow analysis) which incorporated significant estimates and assumptions related to future periods, including timing of MATS implementation, the anticipated size of the mercury removal industry, and growth rates and pricing assumptions of activated carbon, among others. The Company assumed a two year delay in the final MATS implementation due to the U.S. Supreme Court’s ruling. Total charges incurred could be higher if the rulings of the U.S. Court of Appeals for the District of Columbia Circuit on remand result in a delay in the implementation of MATS that is longer than two years. In addition, an estimate of the reporting unit’s weighted average cost of capital (“WACC”) is used to discount future estimated cash flows to their present value. The WACC was based upon externally available data considering market participants’ cost of equity and debt, capital structure and risk factors specific to the Purification Solutions reporting unit.



Step two of the goodwill impairment test requires the Company to perform a theoretical purchase price allocation for the reporting unit to determine the implied fair value of goodwill and to compare the implied fair value of goodwill to the recorded amount of goodwill. The estimate of fair value is complex and requires significant judgment. Accounting guidance provides that a company should recognize an estimated impairment charge to the extent that it determines that it is probable that an impairment loss has occurred and such impairment can be reasonably estimated. As of June 30, 2015, we recorded a pre-tax goodwill impairment charge in the amount of $353 million. We completed the step two analysis in the fourth quarter of fiscal 2015, which resulted in recording a credit of $1 million to the pre-tax goodwill impairment charge. Therefore, for the year ended September 30, 2015, the pre-tax goodwill impairment charge was $352 million.

Based on the same factors leading to goodwill impairment, the Company also considered whether the reporting unit's carrying values of definite-lived intangible assets and property, plant and equipment may not be recoverable or whether the carrying value of certain indefinite-lived intangible assets were impaired. The Company used the income approach to determine the fair value of the indefinite-lived intangible assets, which are the trademarks of Purification Solutions, and determined that the fair value of these intangible assets was lower than their carrying value. As such, an impairment loss was recorded in the amount of $39 million. Subsequent to this impairment analysis, the Company concluded that such assets no longer had an indefinite life and began amortizing these assets over their estimated useful life. The Company also performed an impairment analysis to assess if definite-lived intangible assets and property, plant and equipment were recoverable based on the estimated undiscounted cash flows of the reporting unit, and these cash flows were not sufficient to recover the carrying value of the long-lived assets over their remaining useful lives. Accordingly, an impairment charge was recorded based on the lower of the carrying amount or fair value of the long-lived assets. The Company used the income approach to determine the fair value of the definite-lived intangible assets and a combination of the cost and market approaches to fair value its property, plant and equipment. The Company recorded impairment charges of $119 million and $51 million, to its definite-lived intangible assets and property, plant and equipment, respectively. We completed the impairment analysis in the fourth quarter of fiscal year 2015 which resulted in increasing the property, plant and equipment impairment charge by $1 million to $52 million. Therefore, for the year ended September 30, 2015, the long-lived assets impairment charge was $210 million.

In connection with the long-lived assets impairment charges, the Company recorded a deferred tax benefit of $80 million to its income tax provision.

The performance of the Purification Solutions reporting unit will continue to be monitored. If the reporting unit does not achieve the financial performance that the Company expects or events or circumstances change, it is possible that additional impairment charges may result.

## Note H. Goodwill and Intangible Assets

Cabot had goodwill balances of $154 million and $536 million at September 30, 2015 and September 30, 2014, respectively. The carrying amount of goodwill attributable to each reportable segment with goodwill balances and the changes in those balances during the period ended September 30, 2015 are as follows:

<table><tr><td></td><td>Reinforcement Materials</td><td>Performance Chemicals</td><td>Purification Solutions</td><td>Total</td></tr><tr><td></td><td colspan="4">(Dollars in millions)</td></tr><tr><td>Balance at September 30, 2014</td><td>$ 68</td><td>$ 10</td><td>$ 458</td><td>$ 536</td></tr><tr><td>Impairment charge</td><td>—</td><td>—</td><td>(352)</td><td>(352)</td></tr><tr><td>Foreign currency impact</td><td>(13)</td><td>(1)</td><td>(16)</td><td>(30)</td></tr><tr><td>Balance at September 30, 2015</td><td>$ 55</td><td>$ 9</td><td>$ 90</td><td>$ 154</td></tr><tr><td></td><td>Reinforcement Materials</td><td>Performance Chemicals</td><td>Purification Solutions</td><td>Total</td></tr><tr><td></td><td colspan="4">(Dollars in millions)</td></tr><tr><td>Accumulated impairment losses at September 30, 2014</td><td>—</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Accumulated impairment losses at September 30, 2015</td><td>$ —</td><td>$ —</td><td>$ (352)</td><td>$ (352)</td></tr></table>

Goodwill impairment tests are performed at least annually. The Company performed its most recent annual impairment assessment as of May 31, 2015 and determined there was an impairment of the assets attributable to the Purification Solutions reporting unit. Refer to Note G.



The following table provides information regarding the Company’s intangible assets:

<table><tr><td rowspan="2"></td><td colspan="4">September 30, 2015</td><td colspan="4">September 30, 2014</td></tr><tr><td>Gross Carrying Value</td><td>Accumulated Amortization</td><td>Net Intangible Assets</td><td>Gross Carrying Value</td><td>Accumulated Amortization</td><td>Net Intangible Assets</td><td></td><td></td></tr><tr><td>Intangible assets with finite lives \( ^{(1)} \)</td><td></td><td></td><td></td><td>(Dollars in millions)</td><td></td><td></td><td></td><td></td></tr><tr><td>Developed technologies</td><td>$ 48</td><td>$ (1)</td><td>$ 47</td><td>$ 152</td><td>$ (16)</td><td>$ 136</td><td></td><td></td></tr><tr><td>Trademarks</td><td>16</td><td>—</td><td>16</td><td>57</td><td>—</td><td>57</td><td></td><td></td></tr><tr><td>Customer relationships</td><td>96</td><td>(6)</td><td>90</td><td>171</td><td>(17)</td><td>154</td><td></td><td></td></tr><tr><td>Total intangible assets</td><td>$ 160</td><td>$ (7)</td><td>$ 153</td><td>$ 380</td><td>$ (33)</td><td>$ 347</td><td></td><td></td></tr></table>

(1) Refer to Note G for intangible assets impairment charges recorded in fiscal 2015.

Intangible assets are amortized over their estimated useful lives, which range from fourteen to twenty-five years, with a weighted average amortization period of approximately nineteen years. Amortization expense for the years ended September 30, 2015, 2014 and 2013 was $14 million, $17 million and $14 million, respectively, and is included in Cost of sales and Selling and administrative expenses in the Consolidated Statements of Operations. Total amortization expense is estimated to be approximately $9 million each year for the next five fiscal years.

## Note I. Accounts Payable, Accrued Liabilities and Other Liabilities

Accounts payable and accrued liabilities included in current liabilities consist of the following:

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td>2014</td><td></td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Accounts payable</td><td>$ 274</td><td>$ 351</td><td></td></tr><tr><td>Accrued employee compensation</td><td>34</td><td>48</td><td></td></tr><tr><td>Other accrued liabilities</td><td>81</td><td>113</td><td></td></tr><tr><td>Total</td><td>$ 389</td><td>$ 512</td><td></td></tr></table>

Other long-term liabilities consist of the following:

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td>2014</td><td></td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Employee benefit plan liabilities</td><td>$ 138</td><td>$ 174</td><td></td></tr><tr><td>Non-current tax liabilities</td><td>17</td><td>33</td><td></td></tr><tr><td>Other accrued liabilities</td><td>85</td><td>84</td><td></td></tr><tr><td>Total</td><td>$ 240</td><td>$ 291</td><td></td></tr></table>



## Note J. Debt and Other Obligations

## Long-term Obligations

The Company’s long-term obligations, the fiscal year in which they mature and their respective interest rates are summarized below:

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td>2014</td><td></td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Variable Rate Debt:</td><td></td><td></td><td></td></tr><tr><td>$750 million Revolving Credit Facility, expires 2019</td><td>$</td><td>—</td><td>$</td></tr><tr><td>Chinese Renminbi Notes, due through 2016,</td><td></td><td></td><td></td></tr><tr><td>6.15%—6.77%</td><td>—</td><td></td><td>28</td></tr><tr><td>Total variable rate debt</td><td>—</td><td></td><td>28</td></tr><tr><td>Fixed Rate Debt:</td><td></td><td></td><td></td></tr><tr><td>5% Notes due 2017</td><td>$</td><td>300</td><td>$</td></tr><tr><td>2.55% Notes due 2018</td><td></td><td>250</td><td>250</td></tr><tr><td>3.7% Notes due 2022</td><td></td><td>350</td><td>350</td></tr><tr><td>Medium Term Notes:</td><td></td><td></td><td></td></tr><tr><td>Notes due 2019, 7.42%</td><td></td><td>30</td><td>30</td></tr><tr><td>Notes due 2022, 8.35%—8.47%</td><td></td><td>15</td><td>15</td></tr><tr><td>Notes due 2028, 6.57%—7.28%</td><td></td><td>8</td><td>8</td></tr><tr><td>Total Medium Term Notes</td><td>$</td><td>53</td><td>$</td></tr><tr><td>Chinese Renminbi Notes, due through 2017,</td><td></td><td></td><td></td></tr><tr><td>4.63%—6.15%</td><td></td><td>5</td><td>31</td></tr><tr><td>Total fixed rate debt</td><td></td><td>958</td><td>984</td></tr><tr><td>Capital lease obligations, due through 2031</td><td></td><td>14</td><td>17</td></tr><tr><td>Unamortized debt discount</td><td></td><td>(1)</td><td>(1)</td></tr><tr><td>Total debt</td><td></td><td>971</td><td>1,028</td></tr><tr><td>Less current portion of long-term debt</td><td></td><td>(1)</td><td>(24)</td></tr><tr><td>Total long-term debt</td><td>$</td><td>970</td><td>$</td></tr></table>

$750 million Revolving Credit Facility—The amount available for borrowing under the revolving credit agreement, after consideration of letters of credit and commercial paper outstanding, was $738 million as of September 30, 2015. Effective October 23, 2015, the Company entered into a new revolving credit agreement that amended and extended the $750 million revolving credit agreement, which was scheduled to mature on October 3, 2019. The borrowing capacity on the new revolving credit agreement, which matures on October 23, 2020, subject to two one-year options to extend on the first and second anniversaries of the effective date, is $1 billion and continues to support the Company’s commercial paper program. Borrowings under the new revolving credit agreement may be used for working capital, letters of credit and other general corporate purposes. The new revolving credit agreement contains affirmative and negative covenants, a single financial covenant (consolidated total debt to consolidated EBITDA) and events of default customary for financings of this type.

Chinese Renminbi Debt—The Company’s consolidated Chinese subsidiaries had $5 million and $59 million of unsecured long-term debt outstanding as of September 30, 2015 and September 30, 2014, respectively.

5% Notes due fiscal 2017—In fiscal 2009, Cabot issued $300 million in registered notes with a coupon of 5% that will mature on October 1, 2016. These notes are unsecured and pay interest on April 1 and October 1. The net proceeds of this offering were $296 million after deducting discounts and issuance costs. The discount of approximately $2 million was recorded at issuance and is being amortized over the life of the notes.

2.55% Notes due fiscal 2018—In July 2012, Cabot issued $250 million in registered notes with a coupon of 2.55% that will mature on January 15, 2018. These notes are unsecured and pay interest on January 15 and July 15. The net proceeds of this offering were $248 million after deducting discounts and issuance costs. The discount of less than $1 million was recorded at issuance and is being amortized over the life of the notes.



3.7% Notes due fiscal 2022—In July 2012, Cabot issued $350 million in registered notes with a coupon of 3.7% that will mature on July 15, 2022. These notes are unsecured and pay interest on January 15 and July 15. The net proceeds of this offering were $347 million after deducting discounts and issuance costs. The discount of less than $1 million was recorded at issuance and is being amortized over the life of the notes.

Medium Term Notes—At both September 30, 2015 and 2014, there were $53 million of unsecured medium term notes outstanding issued to numerous lenders with various fixed interest rates and maturity dates. The weighted average maturity of the total outstanding medium term notes is 6 years with a weighted average interest rate of 7.65%.

Capital Lease Obligations—Cabot had capital lease obligations for certain equipment and buildings with a recorded value of $14 million and $17 million at September 30, 2015 and 2014, respectively. Cabot will make payments totaling $33 million over the next 16 years, including $9 million of imputed interest. At September 30, 2015 and 2014, the original cost of capital lease assets was $20 million and $22 million, respectively, and the associated accumulated depreciation of assets under capital leases was $9 million at both September 30, 2015 and 2014. The amortization related to those assets under capital lease is included in depreciation expense.

## Future Years Payment Schedule

The aggregate principal amounts of long-term debt and capital lease obligations due in each of the five years from fiscal 2016 through 2020 and thereafter are as follows:

<table><tr><td>Fiscal Years Ending September 30,</td><td>Principal Payments on Long-Term Debt</td><td>Payments on Capital Lease Obligations</td><td>Total</td></tr><tr><td></td><td colspan="3">(Dollars in millions)</td></tr><tr><td>2016</td><td>$ —</td><td>3</td><td>3</td></tr><tr><td>2017</td><td>305</td><td>4</td><td>309</td></tr><tr><td>2018</td><td>250</td><td>3</td><td>253</td></tr><tr><td>2019</td><td>30</td><td>3</td><td>33</td></tr><tr><td>2020</td><td>—</td><td>3</td><td>3</td></tr><tr><td>Thereafter</td><td>373</td><td>17</td><td>390</td></tr><tr><td>Less: executory costs and interest</td><td>—</td><td>(19)</td><td>(19)</td></tr><tr><td>Total</td><td>$ 958</td><td>$ 14</td><td>$ 972</td></tr></table>

Standby letters of credit—At September 30, 2015, the Company had provided standby letters of credit that were outstanding and not drawn totaling $11 million, which expire through fiscal 2016.

## Short-term Obligations

Short-term Notes Payable—The Company had unsecured short-term notes of $22 million and $44 million as of September 30, 2015 and 2014, respectively, with maturities of less than one year. The weighted-average interest rate on short-term notes payable, including commercial paper, was 4.6% and 3.9% as of September 30, 2015 and 2014, respectively.

The Company has a commercial paper program and the maximum aggregate balance of commercial paper notes outstanding and the amounts borrowed under the revolving credit facility may not exceed the borrowing capacity of the revolving credit facility, $750 million (increased to $1 billion in October 2015). The proceeds from the issuance of the commercial paper have been used for general corporate purposes, which may include working capital, refinancing existing indebtedness, capital expenditures, share repurchases, and acquisitions. The revolving credit facility is available to repay the outstanding commercial paper, if necessary.

The outstanding balance of commercial paper, included within the Notes payable caption on the Consolidated Balance Sheets, was $12 million as of September 30, 2015 bearing a weighted-average interest rate of 0.36% with a weighted-average maturity of 1 day. The outstanding balance of commercial paper was $30 million as of September 30, 2014 bearing a weighted-average interest rate of 0.25% with a weighted-average maturity of 1 day.



## Note K. Financial Instruments and Fair Value Measurements

The FASB authoritative guidance on fair value measurements defines fair value, provides a framework, for measuring fair value in generally accepted accounting principles, and requires certain disclosures about fair value measurements. The disclosures focus on the inputs used to measure fair value. The guidance establishes the following hierarchy for categorizing these inputs:

Level 1 — Quoted market prices in active markets for identical assets or liabilities

Level 2 — Significant other observable inputs (e.g., quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs other than quoted prices that are observable such as interest rate and yield curves, and market-corroborated inputs)

Level 3 — Significant unobservable inputs

There were no transfers of financial assets or liabilities measured at fair value between Level 1 and Level 2, or transfers into or out of Level 3, during fiscal 2015 or 2014.

At September 30, 2015 and 2014, the fair value of Guaranteed investment contracts, included in Other assets on the Consolidated Balance Sheets, was $12 million and $13 million, respectively. Guaranteed investment contracts were classified as Level 2 instruments within the fair value hierarchy as the fair value determination was based on other observable inputs.

At September 30, 2015 and 2014, the fair values of cash and cash equivalents, accounts and notes receivable, accounts payable and accrued liabilities, and notes payable and variable rate debt approximated their carrying values due to the short-term nature of these instruments. The carrying value and fair value of the long-term fixed rate debt were $0.96 billion and $1.02 billion, respectively, as of September 30, 2015. The carrying value and fair value of the long-term fixed rate debt were $0.98 billion and $1.05 billion, respectively, as of September 30, 2014. The fair values of Cabot's fixed rate long-term debt and capital lease obligations are estimated based on comparable quoted market prices at the respective period ends. The carrying amounts of Cabot's floating rate long-term debt and capital lease obligations approximate their fair values. All such measurements are based on observable inputs and are classified as Level 2 within the fair value hierarchy. The valuation technique used is the discounted cash flow model.

## Note L. Derivatives

## Risk Management

Cabot’s business operations are exposed to changes in interest rates, foreign currency exchange rates and commodity prices because Cabot finances certain operations through long and short-term borrowings, denominates transactions in a variety of foreign currencies and purchases certain commoditized raw materials. Changes in these rates and prices may have an impact on future cash flows and earnings. The Company manages these risks through normal operating and financing activities and, when deemed appropriate, through the use of derivative financial instruments.

The Company has policies governing the use of derivative instruments and does not enter into financial instruments for trading or speculative purposes.

By using derivative instruments, Cabot is subject to credit and market risk. If a counterparty fails to fulfill its performance obligations under a derivative contract, Cabot’s credit risk will equal the fair value of the derivative. Generally, when the fair value of a derivative contract is positive, the counterparty owes Cabot, thus creating a payment risk for Cabot. The Company minimizes counterparty credit (or repayment) risk by entering into transactions with major financial institutions of investment grade credit rating. As of September 30, 2015, the counterparty with which the Company has executed derivatives carried a Standard and Poor’s credit rating of AA-. Cabot’s exposure to market risk is not hedged in a manner that completely eliminates the effects of changing market conditions on earnings or cash flow. No significant concentration of credit risk existed at September 30, 2015.

## Interest Rate Risk Management

Cabot’s objective is to maintain a certain fixed-to-variable interest rate mix on the Company’s debt obligations. Cabot may enter into interest rate swaps as a hedge of the underlying debt instruments to effectively change the characteristics of the interest rate without changing the debt instrument. As of both September 30, 2015 and 2014, there were no derivatives held to manage interest rate risk.



## Foreign Currency Risk Management

Cabot’s international operations are subject to certain risks, including currency exchange rate fluctuations and government actions. Cabot endeavors to match the currency in which debt is issued to the currency of the Company’s major, stable cash receipts. In some situations Cabot has issued debt denominated in U.S. dollars and then entered into cross currency swaps that exchange the dollar principal and interest payments into a currency where the Company expects long-term, stable cash receipts.

Additionally, the Company has foreign currency exposure arising from its net investments in foreign operations. Cabot, from time to time, enters into cross-currency swaps to mitigate the impact of currency rate changes on the Company’s net investments.

The Company also has foreign currency exposure arising from the denomination of monetary assets and liabilities in foreign currencies other than the functional currency of a given subsidiary as well as the risk that currency fluctuations could affect the dollar value of future cash flows generated in foreign currencies. Accordingly, Cabot uses short-term forward contracts to minimize the exposure to foreign currency risk.

In certain situations where the Company has forecasted purchases under a long-term commitment or forecasted sales denominated in a foreign currency, Cabot may enter into appropriate financial instruments in accordance with the Company’s risk management policy to hedge future cash flow exposures.

The following table provides details of the derivatives held as of September 30, 2015 and 2014 to manage foreign currency risk.

<table><tr><td rowspan="2"></td><td rowspan="2">Description</td><td rowspan="2">Borrowing</td><td colspan="3">Notional Amount</td><td rowspan="2">Hedge Designation</td></tr><tr><td>September 30, 2015</td><td>September 30, 2014</td><td>No designation</td></tr><tr><td>Forward Foreign Currency Contracts (1)</td><td></td><td>N/A</td><td>USD 2 million</td><td>USD 32 million</td><td></td><td></td></tr></table>

Cabot’s forward foreign exchange contracts are denominated primarily in the British pound sterling, Brazilian real, and Czech koruna.

## Accounting for Derivative Instruments and Hedging Activities

The Company determines the fair value of financial instruments using quoted market prices whenever available. When quoted market prices are not available for various types of financial instruments (such as forwards, options and swaps), the Company uses standard models with market-based inputs, which take into account the present value of estimated future cash flows and the ability of the financial counterparty to perform. For interest rate and cross-currency swaps, the significant inputs to these models are interest rate curves for discounting future cash flows. For forward foreign currency contracts, the significant inputs are interest rate curves for discounting future cash flows, and exchange rate curves of the foreign currency for translating future cash flows.

## Fair Value Hedge

For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting gain or loss on the hedged item attributable to the hedged risk are recognized in current period earnings.

## Cash Flow Hedge

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain or loss on the derivative is recorded in Accumulated other comprehensive (loss) income and reclassified to earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current period earnings.

## Other Derivative Instruments

From time to time, the Company may enter into certain derivative instruments that may not be designated as hedges for accounting purposes, which include cross currency swaps, foreign currency forward contracts and commodity derivatives. For cross currency swaps and foreign currency forward contracts not designated as hedges, the Company uses standard models with market-based inputs. The significant inputs to these models are interest rate curves for discounting future cash flows, and exchange rate curves of the foreign currency for translating future cash flows. In determining the fair value of the commodity derivatives, the significant inputs to valuation models are quoted market prices of similar instruments in active markets. Although these derivatives do not qualify for hedge accounting, Cabot believes that such instruments are closely correlated with the underlying exposure, thus managing the associated risk. The gains or losses from changes in the fair value of derivative instruments that are not accounted for as hedges are recognized in current period earnings.



During fiscal 2015 and 2014, there were no derivatives designated as hedges. During fiscal 2013, for derivatives designated as hedges, the change in unrealized gains in Accumulated other comprehensive (loss) income, the hedge ineffectiveness recognized in earnings, the realized gains or losses reclassified from Accumulated other comprehensive (loss) income, and the losses reclassified from Accumulated other comprehensive (loss) income to earnings were immaterial.

During fiscal 2013 a gain of $4 million was recognized in earnings as a result of the remeasurement to Euros of the $175 million bond held by one of Cabot's European subsidiaries. The gain was recognized in earnings through Other (expense) income within the Consolidated Statements of Operations. The gain was offset by a loss of $2 million from Cabot's cross currency swaps that are not designated as hedges, but which Cabot entered into to offset the foreign currency remeasurement exposure on the debt. Additionally, during fiscal 2013, Cabot recognized in earnings through Other (expense) income within the Consolidated Statements of Operations, a gain of $5 million related to its foreign currency forward contracts, which were not designated as hedges.

At both September 30, 2015 and 2014, the fair value of derivative instruments were immaterial and were presented in Prepaid expenses and other current assets and Accounts payable and accrued liabilities on the Consolidated Balance Sheets.

## Note M. Venezuela

Cabot owns 49% of an operating carbon black affiliate in Venezuela, which is accounted for as an equity affiliate, through wholly-owned subsidiaries that carry the investment and receive its dividends. As of September 30, 2015, these subsidiaries carried the operating affiliate investment of $14 million and held 18 million bolivars (less than $1 million) in cash.

During fiscal 2015, 2014 and 2013, the Company received dividends in the amounts of $6 million, $5 million and $3 million, respectively, which were paid in U.S. dollars.

A significant portion of the Company’s operating affiliate’s sales are exports denominated in U.S. dollars. The Venezuelan government mandates that a certain percentage of the dollars collected from these sales be converted into bolivars. The operating affiliate and the Company’s wholly owned subsidiaries used an exchange rate that was available to Cabot when converting these dollars into bolivars to remeasure their bolivar denominated monetary accounts. The exchange rate made available to us on September 30, 2015 was 52 bolivars to the U.S. dollar (B/S).

The operating entity has generally been profitable. The Company continues to closely monitor developments in Venezuela and their potential impact on the recoverability of its equity affiliate investment.

The Company closely monitors its ability to convert its bolivar holdings into U.S. dollars, as the Company intends to convert substantially all bolivars held by its wholly-owned subsidiaries in Venezuela to U.S. dollars as soon as practical. Any future change in the exchange rate made available to the Company or opening of additional parallel markets could cause the Company to change the exchange rate it uses and result in gains or losses on the bolivar denominated assets held by its operating affiliate and wholly-owned subsidiaries.

## Note N. Employee Benefit Plans

The information below provides detail concerning the Company’s benefit obligations under the defined benefit and postretirement benefit plans it sponsors.

Defined benefit plans provide pre-determined benefits to employees that are distributed upon retirement. Cabot is making all required contributions to these plans. The accumulated benefit obligation was $170 million for the U.S. defined benefit plans and $326 million for the foreign plans as of September 30, 2015 and $173 million for the U.S. defined benefit plans and $462 million for the foreign plans as of September 30, 2014.

In addition to benefits provided under the defined benefit and postretirement benefit plans, the Company provided benefits under defined contribution plans. One of these plans included an Employee Stock Ownership Plan (“ESOP”) component, which is described below. Cabot recognized expenses related to these plans, not including the expenses related to the ESOP, of $20 million in fiscal 2015, $14 million in fiscal 2014 and $9 million in fiscal 2013.

## Employee Stock Ownership Plan

In the first quarter of fiscal 2014, all shares that remained available for distribution under the ESOP were allocated to participant accounts and no further contributions under the plan have been or will be made. Compensation expense related to the ESOP, which is based on the fair value of the shares on the date of allocation, was $1 million in fiscal 2014 and $4 million in fiscal 2013.



The following provides information about benefit obligations, plan assets, the funded status and weighted-average assumptions of the defined benefit pension and postretirement benefit plans:

<table><tr><td rowspan="4"></td><td colspan="12">Years Ended September 30</td></tr><tr><td colspan="3">2015</td><td colspan="3">2014</td><td colspan="3">2015</td><td colspan="3">2014</td></tr><tr><td colspan="3">Pension Benefits</td><td colspan="3">Prestretirement Benefits</td><td colspan="3">Prestretirement Benefits</td><td colspan="3">Pestretirement Benefits</td></tr><tr><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S</td><td>Foreign</td><td>U.S</td><td>Foreign</td><td></td><td></td></tr><tr><td>Change in Benefit Obligations:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Benefit obligation at beginning of year</td><td>$ 173</td><td>$ 491</td><td>$ 170</td><td>$ 439</td><td>$ 50</td><td>$ 17</td><td>$ 55</td><td>$ 17</td><td></td><td></td><td></td><td></td></tr><tr><td>Service cost</td><td>1</td><td>9</td><td>2</td><td>9</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Interest cost</td><td>7</td><td>11</td><td>7</td><td>16</td><td>2</td><td>1</td><td>2</td><td>1</td><td></td><td></td><td></td><td></td></tr><tr><td>Plan participants&#x27; contribution</td><td>—</td><td>2</td><td>—</td><td>2</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Foreign currency exchange rate changes</td><td>—</td><td>(45)</td><td>—</td><td>(28)</td><td>—</td><td>(2)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Loss (gain) from changes in actuarial assumptions and plan experience</td><td>3</td><td>(23)</td><td>6</td><td>75</td><td>1</td><td>(1)</td><td>(3)</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Benefits paid(1)</td><td>(13)</td><td>(13)</td><td>(11)</td><td>(18)</td><td>(4)</td><td>—</td><td>(4)</td><td>(1)</td><td></td><td></td><td></td><td></td></tr><tr><td>Settlements or curtailment gain(2)</td><td>—</td><td>(85)</td><td>—</td><td>(7)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Acquisition / business combination</td><td>—</td><td>—</td><td>—</td><td>3</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Plan amendments</td><td>—</td><td>—</td><td>—</td><td>—</td><td>(11)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Other</td><td>(1)</td><td>1</td><td>(1)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Benefit obligation at end of year</td><td>$ 170</td><td>$ 348</td><td>$ 173</td><td>$ 491</td><td>$ 38</td><td>$ 15</td><td>$ 50</td><td>$ 17</td><td></td><td></td><td></td><td></td></tr><tr><td></td><td colspan="12">Years Ended September 30</td></tr><tr><td></td><td colspan="3">2015</td><td colspan="3">2014</td><td colspan="3">2015</td><td colspan="3">2014</td></tr><tr><td></td><td colspan="3">Pension Benefits</td><td colspan="3">Prestretirement Benefits</td><td colspan="3">Prestretirement Benefits</td><td colspan="3">Pestretirement Benefits</td></tr><tr><td></td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U. S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td></td><td></td></tr><tr><td>Change in Plan Assets:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Fair value of plan assets at beginning of year</td><td>$ 167</td><td>$ 388</td><td>$ 155</td><td>$ 375</td><td>—</td><td>—</td><td>$ —</td><td>$ —</td><td>$ —</td><td></td><td></td><td></td></tr><tr><td>Actual return on plan assets</td><td>(1)</td><td>11</td><td>21</td><td>41</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Employer contribution</td><td>1</td><td>10</td><td>3</td><td>12</td><td>4</td><td>—</td><td>4</td><td>1</td><td></td><td></td><td></td><td></td></tr><tr><td>Plan participants&#x27; contribution</td><td>—</td><td>2</td><td>—</td><td>2</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Foreign currency exchange rate changes</td><td>—</td><td>(34)</td><td>—</td><td>(20)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Benefits paid(1)</td><td>(13)</td><td>(13)</td><td>(11)</td><td>(18)</td><td>(4)</td><td>—</td><td>(4)</td><td>(1)</td><td></td><td></td><td></td><td></td></tr><tr><td>Settlements(2)</td><td>—</td><td>(85)</td><td>—</td><td>(4)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Acquisition / business combination</td><td>—</td><td>—</td><td>—</td><td>1</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Expenses paid from assets</td><td>(1)</td><td>—</td><td>(1)</td><td>(1)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td></td></tr><tr><td>Fair value of plan assets at end of year</td><td>$ 153</td><td>$ 279</td><td>$ 167</td><td>$ 388</td><td>$ —</td><td>$ —</td><td>$ —</td><td>$ —</td><td>$ —</td><td></td><td></td><td></td></tr><tr><td>Funded status</td><td>(17)</td><td>(69)</td><td>(6)</td><td>(103)</td><td>(38)</td><td>(15)</td><td>(50)</td><td>(17)</td><td></td><td></td><td></td><td></td></tr><tr><td>Recognized liability</td><td>(17)</td><td>(69)</td><td>(6)</td><td>(103)</td><td>(38)</td><td>(15)</td><td>(50)</td><td>(17)</td><td></td><td></td><td></td><td></td></tr></table>

(1) Included in this amount are $6 million and $7 million that the Company paid directly to the participants in its defined benefit plans in fiscal 2015 and 2014, respectively.

(2) The $85 million settlement amount is primarily driven by the transfer of certain plan assets and obligations to a third party, as discussed further under Curtailments and Settlements of Employee Benefit Plans.



## Pension Assumptions and Strategy

The following assumptions were used to determine the pension benefit obligations at September 30:

<table><tr><td rowspan="3"></td><td colspan="6">Assumptions as of September 30</td></tr><tr><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="2">2013</td></tr><tr><td colspan="5">Pension Benefits</td></tr><tr><td></td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td></tr><tr><td>Actuarial assumptions as of the year-end measurement date:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Discount rate</td><td>4.2%</td><td>2.9%</td><td>4.0%</td><td>3.0%</td><td>4.5%</td><td>3.8%</td></tr><tr><td>Rate of increase in compensation</td><td>N/A</td><td>2.8%</td><td>N/A</td><td>2.8%</td><td>3.0%</td><td>3.1%</td></tr><tr><td>Actuarial assumptions used to determine net periodic benefit cost during the year:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Discount rate</td><td>4.0%</td><td>3.0%</td><td>4.5%</td><td>3.8%</td><td>3.5%</td><td>3.6%</td></tr><tr><td>Expected long-term rate of return on plan assets</td><td>7.5%</td><td>5.4%</td><td>7.8%</td><td>5.3%</td><td>7.8%</td><td>5.3%</td></tr><tr><td>Rate of increase in compensation</td><td>N/A</td><td>2.8%</td><td>3.0%</td><td>3.1%</td><td>3.5%</td><td>3.1%</td></tr></table>

## Postretirement Assumptions and Strategy

The following assumptions were used to determine the postretirement benefit obligations at September 30:

<table><tr><td rowspan="3"></td><td colspan="6">Assumptions as of September 30</td></tr><tr><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="2">2013</td></tr><tr><td colspan="5">Postretirement Benefits</td></tr><tr><td></td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td></tr><tr><td>Actuarial assumptions as of the year-end measurement date:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Discount rate</td><td>3.7%</td><td>3.9%</td><td>3.8%</td><td>3.9%</td><td>4.0%</td><td>4.4%</td></tr><tr><td>Initial health care cost trend rate</td><td>6.5%</td><td>6.8%</td><td>7.0%</td><td>7.1%</td><td>7.5%</td><td>7.5%</td></tr><tr><td>Actuarial assumptions used to determine net cost during the year:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Discount rate</td><td>3.8%</td><td>3.9%</td><td>4.0%</td><td>4.4%</td><td>3.3%</td><td>3.9%</td></tr><tr><td>Initial health care cost trend rate</td><td>7.0%</td><td>7.1%</td><td>7.5%</td><td>7.5%</td><td>8.0%</td><td>7.4%</td></tr></table>

Cabot uses discount rates as of September 30, the plans' measurement date, to determine future benefit obligations under its U.S. and foreign defined benefit plans. The discount rates for the defined benefit plans in the U.S., Canada, Mexico, UAE, Euro-zone, Japan, Switzerland and the U.K. are derived from yield curves that reflect high quality corporate bond yield or swap rate information in each region and reflect the characteristics of Cabot's employee benefit plans. The discount rates for the defined benefit plans in the Czech Republic and Indonesia are based on government bond indices that best reflect the durations of the plans, adjusted for credit spreads presented in selected AA corporate bond indices. The rates utilized are selected because they represent long-term, high quality, fixed income benchmarks that approximate the long-term nature of Cabot's pension obligations and related payouts.

<table><tr><td rowspan="3"></td><td colspan="9">Years Ended September 30</td></tr><tr><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="2">2015</td><td colspan="3">2014</td></tr><tr><td colspan="3">Pension Benefits</td><td colspan="5">Postretirement Benefits</td></tr><tr><td></td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U. S.</td><td>Foreign</td><td></td></tr><tr><td></td><td></td><td></td><td></td><td>(Dollars in millions)</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net Amounts Recognized in the Consolidated Balance Sheets:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent assets</td><td>$ —</td><td>$ 5</td><td>$ —</td><td>$ 4</td><td>$ —</td><td>$ —</td><td>$ —</td><td>$ —</td><td></td></tr><tr><td>Current liabilities</td><td>(1)</td><td>(1)</td><td>—</td><td>(1)</td><td>(4)</td><td>—</td><td>(5)</td><td>—</td><td></td></tr><tr><td>Noncurrent liabilities</td><td>(16)</td><td>(73)</td><td>(6)</td><td>(106)</td><td>(34)</td><td>(15)</td><td>(45)</td><td>(17)</td><td></td></tr></table>



Amounts recognized in Accumulated other comprehensive (loss) income at September 30, 2015 and 2014 were as follows:

Years Ended September 30

<table><tr><td rowspan="3"></td><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="2">2015</td><td colspan="2">2014</td></tr><tr><td colspan="2">Pension Benefits</td><td colspan="2">Benefits</td><td colspan="2">Postretirement Benefits</td><td colspan="2">Benefits</td></tr><tr><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S</td><td>Foreign</td></tr><tr><td>Net actuarial loss (gain)</td><td>$     5</td><td>$     65</td><td>$     9</td><td>$     118</td><td>$     6</td><td>$     1</td><td>$     7</td><td>$     2</td></tr><tr><td>Net prior service credit</td><td>—</td><td>(1)</td><td>—</td><td>—</td><td>(11)</td><td>—</td><td>(3)</td><td>—</td></tr><tr><td>Balance in accumulated other comprehensive (loss) income, pretax</td><td>$     5</td><td>$     64</td><td>$     9</td><td>$     118</td><td>$     17</td><td>$     1</td><td>$     10</td><td>$     2</td></tr></table>

In fiscal 2016, the Company expects an estimated net loss of $3 million will be amortized from Accumulated other comprehensive (loss) income to net periodic benefit cost. In addition, the Company expects prior service credits of $4 million for other postretirement benefits will be amortized from Accumulated other comprehensive (loss) income to net periodic benefit costs in fiscal 2016.

## Estimated Future Benefit Payments

The Company expects that the following benefit payments will be made to plan participants in the years from 2016 to 2025:

<table><tr><td rowspan="3"></td><td colspan="2">Pension Benefits</td><td colspan="2">Postretirement Benefits</td></tr><tr><td rowspan="2">U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Years Ended:</td><td></td><td></td><td></td><td></td></tr><tr><td>2016</td><td>$     12</td><td>$     14</td><td>$     4</td><td>$      —</td></tr><tr><td>2017</td><td>10</td><td>12</td><td>4</td><td>—</td></tr><tr><td>2018</td><td>11</td><td>13</td><td>3</td><td>1</td></tr><tr><td>2019</td><td>11</td><td>13</td><td>3</td><td>1</td></tr><tr><td>2020</td><td>11</td><td>14</td><td>3</td><td>1</td></tr><tr><td>2021-2025</td><td>55</td><td>77</td><td>14</td><td>4</td></tr></table>

Postretirement medical benefits are unfunded and impact Cabot’s cash flows as benefits become due. The Company expects to contribute $8 million to its foreign pension plans in fiscal 2016.

Net periodic defined benefit pension and other postretirement benefit costs include the following components:

<table><tr><td rowspan="3"></td><td colspan="12">Years Ended September 30</td></tr><tr><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="2">2013</td><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="3">2013</td></tr><tr><td colspan="4">Pension Benefits</td><td colspan="8">Postretirement Benefits</td></tr><tr><td></td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td>U. S.</td><td>Foreign</td><td>U. S.</td><td>Foreign</td><td>U. S.</td><td>U. S.</td><td>Foreign</td></tr><tr><td>Service cost</td><td>$     1</td><td>$     9</td><td>$     2</td><td>$     9</td><td>$     6</td><td>$     9</td><td>$     9</td><td>$      —</td><td>$      —</td><td>$      —</td><td>$      —</td><td>$      —</td><td>$      \)</td></tr><tr><td>Interest cost</td><td>7</td><td>11</td><td>7</td><td>16</td><td>6</td><td>15</td><td>2</td><td>1</td><td>2</td><td>1</td><td>2</td><td>1</td><td>1</td></tr><tr><td>Expected return on plan assets</td><td>(11)</td><td>(14)</td><td>(10)</td><td>(19)</td><td>(10)</td><td>(18)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Amortization of prior service cost</td><td>—</td><td>3</td><td>—</td><td>—</td><td>—</td><td>—</td><td>(4)</td><td>—</td><td>(3)</td><td>—</td><td>(3)</td><td>—</td><td>—</td></tr><tr><td>Net losses</td><td>—</td><td>4</td><td>—</td><td>3</td><td>1</td><td>4</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Settlements or Curtailments cost</td><td>—</td><td>18</td><td>—</td><td>—</td><td>1</td><td>2</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Net periodic (benefit) cost</td><td>$      (3)</td><td>$     31</td><td>$      (1)</td><td>$     9</td><td>$     4</td><td>$     12</td><td>$      (2)</td><td>$     1</td><td>$      (1)</td><td>$     1</td><td>$      (1)</td><td>$     1</td><td>$      (1)</td></tr></table>



Other changes in plan assets and benefit obligations recognized in other comprehensive income are as follows:

Years Ended September 30

<table><tr><td rowspan="3"></td><td colspan="2">2015</td><td colspan="3">2014</td><td colspan="2">2013</td><td colspan="2">2015</td><td colspan="2">2014</td><td colspan="2">2013</td></tr><tr><td rowspan="2">U.S.</td><td rowspan="2">Foreign</td><td colspan="2">Pension Benefits</td><td rowspan="2">U.S.</td><td rowspan="2">Foreign</td><td rowspan="2">U.S.</td><td rowspan="2">Foreign</td><td>Postretirement Benefits</td><td rowspan="2">U.S.</td><td rowspan="2">Foreign</td><td rowspan="2">U.S.</td><td rowspan="2">Foreign</td></tr><tr><td colspan="8">(Dollars in millions)</td></tr><tr><td>Net losses (gains)</td><td>$ 14</td><td>$ (8)</td><td>$ (4)</td><td>$ 50</td><td>$ (32)</td><td>$ 8</td><td>$ 1</td><td>$ —</td><td>$ (4)</td><td>$ —</td><td>$ (6)</td><td>$ —</td><td></td></tr><tr><td>Prior service (credit) cost</td><td>—</td><td>(2)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>(11)</td><td>—</td><td>3</td><td>—</td><td>3</td><td>—</td><td></td></tr><tr><td>Amortization of prior service credit</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Amortization of prior unrecognized loss</td><td>—</td><td>(4)</td><td>—</td><td>(3)</td><td>(2)</td><td>(4)</td><td>4</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Other</td><td>—</td><td>(27)</td><td>—</td><td>(1)</td><td>—</td><td>(4)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td>—</td><td></td></tr><tr><td>Total other Comprehensive loss (income)</td><td>$ 14</td><td>$ (41)</td><td>$ (4)</td><td>$ 46</td><td>$ (34)</td><td>$ —</td><td>$ (6)</td><td>$ —</td><td>$ (1)</td><td>$ —</td><td>$ (3)</td><td>$ —</td><td></td></tr></table>

## Curtailments and Settlements of Employee Benefit Plans

In recent years, the Company incurred curtailments and settlements of certain of its employee benefit plans. Associated with these curtailments and settlements, the Company recognized net losses of $17 million, less than $1 million, and $3 million in fiscal 2015, 2014 and 2013, respectively.

Effective October 1, 2014, the Company transferred the defined benefit obligations and pension plan assets in one of its foreign defined benefit plans to a multi-employer plan. This action effectively moves the administrative, asset custodial, asset investment, actuarial, communication and benefit payment obligations to the multi-employer fund administrator. Cabot is required to make contributions to the multi-employer plan which is over 80% funded. Contributed assets by one participating employer may be used to provide benefits to employees of other participating employers since assets contributed by an employer are not segregated in a separate account or restricted to provide benefits only to employees of that employer. As a result of the transfer a pre-tax charge of $18 million was recorded in the first quarter of fiscal 2015. In addition, there was an approximately $85 million reduction in plan assets and plan obligations as a result of the transfer of assets and obligations of this foreign plan.

## Sensitivity Analysis

Measurement of postretirement benefit expense is based on actuarial assumptions used to value the postretirement benefit liability at the beginning of the year. Assumed health care cost trend rates have an effect on the amounts reported for the health care plans. The fiscal 2015 weighted-average assumed health care cost trend rate is 7.0% for U.S. plans and 7.1% for foreign plans. The ultimate weighted-average health care cost trend rate has been designated as 5.0% for U.S. plans and 6.6% for foreign plans, and is anticipated to be achieved during 2019 and 2016, respectively. A one percentage point change in the 2015 assumed health care cost trend rate would have the following effects:

<table><tr><td rowspan="3"></td><td colspan="5">1-Percentage-Point</td></tr><tr><td colspan="2">Increase</td><td colspan="2">Decrease</td><td></td></tr><tr><td>U.S.</td><td>Foreign (Dollars in millions)</td><td>U.S.</td><td>Foreign</td><td></td></tr><tr><td>Effect on postretirement benefit obligation</td><td>$ —</td><td>$ —</td><td>3</td><td>$ —</td><td>(2)</td></tr></table>

## Plan Assets

The Company’s defined benefit pension plans weighted-average asset allocations at September 30, 2015 and 2014, by asset category, are as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Pension Assets</td></tr><tr><td colspan="4">September 30</td><td></td></tr><tr><td colspan="2">2015</td><td colspan="2">2014</td><td></td></tr><tr><td></td><td>U.S.</td><td>Foreign</td><td>U.S.</td><td>Foreign</td><td></td></tr><tr><td>Asset Category:</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Equity securities</td><td>55%</td><td>39%</td><td>55%</td><td>37%</td><td></td></tr><tr><td>Debt securities</td><td>45%</td><td>54%</td><td>45%</td><td>47%</td><td></td></tr><tr><td>Cash and other securities</td><td>—</td><td>7%</td><td>—</td><td>16%</td><td></td></tr><tr><td>Total</td><td>100%</td><td>100%</td><td>100%</td><td>100%</td><td></td></tr></table>



To develop the expected long-term rate of return on plan assets assumption, the Company used a capital asset pricing model. The model considers the current level of expected returns on risk-free investments comprised of government bonds, the historical level of the risk premium associated with the other asset classes in which the portfolio is invested, and the expectations for future returns for each asset class. The expected return for each asset class was then weighted based on the target asset allocation to develop the expected long-term rate of return for each plan.

Cabot’s investment strategy for each of its defined benefit plans in the U.S. and abroad is generally based on a set of investment objectives and policies that cover time horizons and risk tolerance levels consistent with plan liabilities. Periodic studies are performed to determine the asset mix that will meet pension obligations at a reasonable cost to the Company. The assets of the defined benefit plans are comprised principally of investments in equity and high quality fixed income securities, which are broadly diversified across the capitalization and style spectrum and are managed using both active and passive strategies. The weighted average target asset allocation for the U.S. plans is 60% in equity and 40% in fixed income and for the foreign plans is 40% in equity, 53% in fixed income, 3% in real estate and 4% in cash and other securities.

For pension plan assets classified as Level 1 measurements (measured using quoted prices in active markets), total fair value is either the price of the most recent trade at the time of the market close or the official close price, as defined by the exchange on which the asset is most actively traded on the last trading day of the period, multiplied by the number of units held without consideration of transaction costs.

For pension plan assets classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance/quality checks.

The fair value of the Company’s pension plan assets at September 30, 2015 and 2014 by asset category is as follows:

<table><tr><td rowspan="2"></td><td colspan="3">Quoted Prices in Active Markets for Identical Assets (Level 1)</td><td colspan="3">Significant Observable Inputs (Level 2)</td><td colspan="3">Quoted Prices in Active Markets for Identical Assets (Level 1)</td><td colspan="3">Significant Observable Inputs (Level 2)</td></tr><tr><td colspan="3">2015</td><td colspan="3">Total</td><td colspan="3">2014</td><td colspan="3">Total</td></tr><tr><td>Asset Category:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash</td><td>$</td><td>1</td><td>$</td><td>—</td><td>$</td><td>1</td><td>$</td><td>69</td><td>$</td><td>—</td><td>$</td><td>69</td></tr><tr><td>Direct investments:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>U.S. equity securities</td><td></td><td>22</td><td>—</td><td></td><td>22</td><td></td><td>22</td><td>—</td><td></td><td>22</td><td></td><td></td></tr><tr><td>Total direct investments</td><td></td><td>22</td><td>—</td><td></td><td>22</td><td></td><td>22</td><td>—</td><td></td><td>22</td><td></td><td></td></tr><tr><td>Investment funds:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Equity funds(1)</td><td></td><td>60</td><td>108</td><td></td><td>168</td><td></td><td>68</td><td>120</td><td></td><td>188</td><td></td><td></td></tr><tr><td>Fixed income funds(2)</td><td></td><td>70</td><td>150</td><td></td><td>220</td><td></td><td>90</td><td>163</td><td></td><td>253</td><td></td><td></td></tr><tr><td>Real estate funds(3)</td><td></td><td>—</td><td>9</td><td></td><td>9</td><td></td><td>—</td><td>9</td><td></td><td>9</td><td></td><td></td></tr><tr><td>Common and collective investment trust funds(4)</td><td></td><td>—</td><td>—</td><td></td><td>—</td><td></td><td>—</td><td>1</td><td></td><td>1</td><td></td><td></td></tr><tr><td>Cash equivalent funds</td><td></td><td>—</td><td>1</td><td></td><td>1</td><td></td><td>—</td><td>—</td><td></td><td>—</td><td></td><td></td></tr><tr><td>Total investment funds</td><td></td><td>130</td><td>268</td><td></td><td>398</td><td></td><td>158</td><td>293</td><td></td><td>451</td><td></td><td></td></tr><tr><td>Alternative investments:</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Insurance contracts(5)</td><td></td><td>—</td><td>11</td><td></td><td>11</td><td></td><td>—</td><td>13</td><td></td><td>13</td><td></td><td></td></tr><tr><td>Total alternative investments</td><td></td><td>—</td><td>11</td><td></td><td>11</td><td></td><td>—</td><td>13</td><td></td><td>13</td><td></td><td></td></tr><tr><td>Total pension plan assets</td><td>$</td><td>153</td><td>$</td><td>279</td><td>$</td><td>432</td><td>$</td><td>249</td><td>$</td><td>306</td><td>$</td><td>555</td></tr></table>

(1) The equity funds asset class includes funds that invest in U.S. equities as well as equity securities issued by companies incorporated, listed or domiciled in countries in developed and/or emerging markets. These companies may be in the small-, mid- or large-cap categories.

(2) The fixed income funds asset class includes investments in high quality funds. High quality fixed income funds primarily invest in low risk U.S. and non-U.S. government securities, investment-grade corporate bonds, mortgages and asset-backed securities. A significant portion of the fixed income funds include investment in long-term bond funds.



(3) The real estate funds asset class includes funds that primarily invest in entities which are principally engaged in the ownership, acquisition, development, financing, sale and/or management of income-producing real estate properties, both commercial and residential. These funds typically seek long-term growth of capital and current income that is above average relative to public equity funds.

(4) The investment objective of the portfolio of this common and collective investment trust is to achieve long-term, total return in excess of the MSCI World Index Benchmark by investing in equity securities of companies worldwide, emphasizing those with above-average potential for capital appreciation.

(5) Insurance contracts held by the Company’s non-U.S. plans are issued by well-known, highly rated insurance companies.

## Note O. Stock-Based Compensation

The Company has established equity compensation plans that provide stock-based compensation to eligible employees. The 2009 Long-Term Incentive Plan (the "2009 Plan"), which was approved by Cabot's stockholders on March 12, 2009 and amended on March 8, 2012, authorizes the issuance of approximately 8.9 million shares of common stock. This is the Company's only equity incentive plan under which awards may currently be made to employees.

The terms of awards made under Cabot’s equity compensation plans are generally determined by the Compensation Committee of Cabot’s Board of Directors. The 2009 Plan allows for grants of stock options, restricted stock, restricted stock units and other stock-based awards to employees. The awards made in fiscal 2015, 2014 and 2013 under the 2009 Plan consist of grants of stock options, time-based restricted stock units, performance-based restricted stock units, and restricted stock units that will be settled in cash. The options were issued with an exercise price equal to 100% of the market price of Cabot’s common stock on the date of grant, vest over a three year period (30% on each of the first and second anniversaries of the date of grant and 40% on the third anniversary of the date of grant) and have a ten-year term. The restricted stock units vest three years from the date of the grant. The number of shares issuable, if any, when a performance-based restricted stock unit award vests will depend on the degree of achievement (threshold, target or maximum performance) of the corporate performance metrics for each year within the three-year performance period of the award. Accordingly, future compensation costs associated with outstanding awards of performance-based restricted stock units may increase or decrease based on the probability of the Company achieving the performance metrics.

As of September 30, 2015, there were 35,769 outstanding time-based and performance-based restricted stock units which will be settled by the payment of cash, assuming unbanked awards will be settled at target performance. Compensation expense related to these awards is remeasured throughout the vesting period and until ultimate settlement of the award. Cumulative compensation expense and the associated liability is recorded equal to the fair value of Cabot common stock multiplied by the applicable vesting percentage. The Company recorded liabilities associated with these cash settled awards of $1 million at both September 30, 2015 and 2014.

Stock-based employee compensation expense was $8 million, $9 million and $8 million, after tax, for fiscal 2015, 2014 and 2013, respectively. The Company recognized the full impact of its stock-based employee compensation expense in the Consolidated Statements of Operations for fiscal 2015, 2014 and 2013 and did not capitalize any such costs on the Consolidated Balance Sheets because those that qualified for capitalization were not material. The following table presents stock-based compensation expenses included in the Company’s Consolidated Statements of Operations:

<table><tr><td></td><td>2015</td><td>2014</td><td>2013</td></tr><tr><td></td><td colspan="3">(Dollars in millions)</td></tr><tr><td>Cost of sales</td><td>$     4</td><td>$     5</td><td>$     4</td></tr><tr><td>Selling and administrative expenses</td><td>7</td><td>8</td><td>7</td></tr><tr><td>Research and technical expenses</td><td>1</td><td>1</td><td>1</td></tr><tr><td>Stock-based compensation expense</td><td>12</td><td>14</td><td>12</td></tr><tr><td>Income tax benefit</td><td>(4)</td><td>(5)</td><td>(4)</td></tr><tr><td>Net stock-based compensation expense</td><td>$     8</td><td>$     9</td><td>$     8</td></tr></table>

As of September 30, 2015, Cabot has $12 million and $2 million of total unrecognized compensation cost related to restricted stock units and options, respectively, granted under the Company’s equity incentive plans. These costs are expected to be recognized over a weighted-average period of 1.3 years and 0.8 years for restricted stock units and options, respectively.



## Equity Incentive Plan Activity

The following table summarizes the total stock option and restricted stock unit activity in the equity incentive plans for fiscal 2015:

<table><tr><td rowspan="2"></td><td colspan="3">Stock Options</td><td colspan="2">Restricted Stock Units</td></tr><tr><td>Total Options</td><td>Weighted Average Exercise Price</td><td>Weighted Average Grant Date Fair Value (Shares in thousands)</td><td>Restricted Stock Units \( ^{(1)} \)</td><td>Weighted Average Grant Date Fair Value</td></tr><tr><td>Outstanding at September 30, 2014</td><td>1,421</td><td>31.22</td><td>10.71</td><td>946</td><td>39.31</td></tr><tr><td>Granted</td><td>245</td><td>46.03</td><td>15.68</td><td>345</td><td>45.85</td></tr><tr><td>Performance-based adjustment \( ^{(2)} \)</td><td>—</td><td>—</td><td>—</td><td>(202)</td><td>41.72</td></tr><tr><td>Exercised / Vested</td><td>(137)</td><td>26.47</td><td>8.50</td><td>(289)</td><td>33.10</td></tr><tr><td>Cancelled / Forfeited</td><td>(19)</td><td>41.97</td><td>15.81</td><td>(65)</td><td>42.88</td></tr><tr><td>Outstanding at September 30, 2015</td><td>1,510</td><td>33.91</td><td>11.65</td><td>735</td><td>43.84</td></tr><tr><td>Exercisable at September 30, 2015</td><td>1,023</td><td>29.10</td><td></td><td></td><td></td></tr><tr><td>Vested and expected to vest \( ^{(3)} \)</td><td>1,500</td><td>33.85</td><td></td><td></td><td></td></tr></table>

(1) The number granted represents the number of shares issuable upon vesting of time-based restricted stock units and performance-based restricted stock units, assuming the Company performs at the target performance level in each year of the three-year performance period.

(2) Represents the number of performance based restricted stock units cancelled based on the Company’s actual performance against certain performance targets applicable to outstanding restricted stock units.

(3) Stock options vested and expected to vest in the future, net of estimated forfeitures, have a weighted average remaining contractual life of 6.3 years.

## Stock Options

The following table summarizes information related to the outstanding and vested options on September 30, 2015:

<table><tr><td></td><td>Total Options Outstanding</td><td>Exercisable Options</td><td>Vested and Expected to Vest</td></tr><tr><td>Aggregate Intrinsic Value (in millions of dollars)</td><td>$ (4)</td><td>$ 3</td><td>$ (3)</td></tr><tr><td>Weighted Average Remaining Contractual Term (in years)</td><td>6.30</td><td>5.30</td><td>6.30</td></tr></table>

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value, based on the Company’s closing common stock price of $31.56 on September 30, 2015, which would have been received by the option holders had all option holders exercised their options and immediately sold their shares on that date.

The intrinsic value of options exercised during fiscal 2015, 2014 and 2013 was $2 million, $12 million and $5 million, respectively, and the Company received cash of $4 million, $9 million and $5 million, respectively, from these exercises.

The Company uses the Black-Scholes option-pricing model to estimate the fair value of the options at the grant date. The estimated weighted average grant date fair values of options granted during fiscal 2015, 2014 and 2013 was $15.68, $18.36, and $12.51 per option, respectively. The fair values on the grant date were calculated using the following weighted-average assumptions:

<table><tr><td rowspan="2"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td><td></td></tr><tr><td>Expected stock price volatility</td><td>41%</td><td>45%</td><td>46%</td><td></td></tr><tr><td>Risk free interest rate</td><td>2.0%</td><td>1.9%</td><td>0.9%</td><td></td></tr><tr><td>Expected life of options (years)</td><td>6</td><td>6</td><td>6</td><td></td></tr><tr><td>Expected annual dividends per year</td><td>0.88</td><td>0.80</td><td>0.80</td><td></td></tr></table>

The expected stock price volatility assumption was determined using the historical volatility of the Company’s common stock over the expected life of the option. The expected term reflects the anticipated time period between the measurement date and the exercise date or post-vesting cancellation date.



## Restricted Stock Units

The value of restricted stock unit awards is the closing stock price at the date of the grant. The weighted average grant date fair values of restricted stock unit awards granted during fiscal 2015, 2014 and 2013 was $45.85, $47.63 and $35.28, respectively. The intrinsic value of restricted stock units (meaning the fair value of the units on the date of vest) that vested during fiscal 2015, 2014 and 2013 were $14 million, $17 million and $16 million, respectively.

## Restricted Stock

The fair value of restricted stock awards is derived by calculating the difference between the share price and the purchase price at the date of the grant. There were no restricted stock awards granted during fiscal 2015, 2014 or 2013. There was no restricted stock activity during 2015, as all awards were vested as of September 2014. The intrinsic value of restricted stock that vested during each of fiscal 2014 and 2013 was less than $1 million.

## Supplemental 401(k) Plan

Cabot’s Deferred Compensation and Supplemental Retirement Plan (“SERP 401(k)”) provides benefits to highly compensated employees in circumstances in which the maximum limits established under ERISA and the Internal Revenue Code prevent them from receiving all of the Company matching and retirement contributions that would otherwise be provided under the qualified 401(k) plan. The SERP 401(k) is non-qualified and unfunded. Contributions under the SERP 401(k) are treated as if invested in Cabot common stock. The majority of the distributions made under the SERP 401(k) are required to be paid with shares of Cabot common stock. The remaining distributions, which relate to certain grandfathered accounts, will be paid in cash based on the market price of Cabot common stock at the time of distribution. The aggregate value of the accounts that will be paid out in stock, which is equivalent to approximately 150,000 and 146,000 shares of Cabot common stock as of September 30, 2015 and 2014, respectively, is reflected at historic cost in stockholders’ equity, and the aggregate value of the accounts that will be paid in cash, which is $1 million as of both September 30, 2015 and 2014, is reflected in other long-term liabilities and marked-to-market quarterly.

## Note P. Restructuring

Cabot’s restructuring activities were recorded in the Consolidated Statements of Operations as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td></td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Cost of sales</td><td>$ 10</td><td>$ 12</td><td>$ 28</td><td></td><td></td></tr><tr><td>Selling and administrative expenses</td><td>11</td><td>17</td><td>7</td><td></td><td></td></tr><tr><td>Total</td><td>$ 21</td><td>$ 29</td><td>$ 35</td><td></td><td></td></tr></table>

Details of these restructuring activities and the related reserves for fiscal 2015 and 2014 were as follows:

<table><tr><td></td><td>Severance and Employee Benefits</td><td>Environmental Remediation</td><td>Asset Impairment and Accelerated Depreciation (Dollars in millions)</td><td>Asset Sales</td><td>Other</td><td>Total</td></tr><tr><td>Reserve at September 30, 2013</td><td>$ 7</td><td>$ 2</td><td>$ —</td><td>$ —</td><td>$ 1</td><td>$ 10</td></tr><tr><td>Charges</td><td>18</td><td>1</td><td>4</td><td>1</td><td>5</td><td>29</td></tr><tr><td>Costs charged against assets and other</td><td>—</td><td>—</td><td>(4)</td><td>—</td><td>—</td><td>(4)</td></tr><tr><td>Cash paid</td><td>(8)</td><td>(1)</td><td>—</td><td>(1)</td><td>(5)</td><td>(15)</td></tr><tr><td>Foreign currency translation adjustment</td><td>(1)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>(1)</td></tr><tr><td>Reserve at September 30, 2014</td><td>$ 16</td><td>$ 2</td><td>$ —</td><td>$ —</td><td>$ 1</td><td>$ 19</td></tr><tr><td>Charges</td><td>9</td><td>—</td><td>5</td><td>—</td><td>7</td><td>21</td></tr><tr><td>Costs charged against assets and other</td><td>—</td><td>—</td><td>(5)</td><td>—</td><td>—</td><td>(5)</td></tr><tr><td>Cash paid</td><td>(18)</td><td>—</td><td>—</td><td>—</td><td>(6)</td><td>(24)</td></tr><tr><td>Foreign currency translation adjustment</td><td>(2)</td><td>—</td><td>—</td><td>—</td><td>—</td><td>(2)</td></tr><tr><td>Reserve at September 30, 2015</td><td>$ 5</td><td>$ 2</td><td>$ —</td><td>$ —</td><td>$ 2</td><td>$ 9</td></tr></table>



## 2016 Plan

On October 20, 2015, in response to challenging macroeconomic conditions, the Company announced its intention to restructure its operations subject to local consultation requirements and processes in certain locations.

In addition, on November 11, 2015, the Company announced that it had committed to a plan to close its carbon black manufacturing facility in Merak, Indonesia. It is anticipated that manufacturing operations at this location will cease by the end of January 2016 and the production in Asia will be consolidated in the Company's Cilegon, Indonesia and other global carbon black production sites to meet demand. As proposed, these combined 2016 plan actions would result in a reduction of approximately 370 positions across the Company's global locations. In response to current market conditions, these actions are intended to result in a more competitive cost structure.

## Business Service Center Transition

In January 2014, the Company announced its intention to open a new Europe, Middle East and Africa (“EMEA”) business service center in Riga, Latvia, and to close its Leuven, Belgium site, subject to the Belgian information and consultation process, which was successfully completed in June 2014. These actions were developed following an extensive evaluation of the Company’s business service capabilities in the EMEA region and a determination that the future EMEA business service center will enable the Company to provide the highest quality of service at the most competitive cost.

During fiscal 2015 and 2014, the Company has recorded pre-tax restructuring charges of $6 million and $18 million, respectively, comprised primarily of employee severance costs and other transition costs. The majority of actions related to the transition of the business service center have been completed and have resulted in total charges of approximately $24 million comprised of $16 million of severance charges and $8 million of other transition costs including training costs and redundant salaries. Through September 30, 2015, the Company has made $20 million in cash payments related to this plan, comprised of $13 million of severance payments and $7 million of other transition related costs, and expects to make cash payments of approximately $2 million, comprised mainly of severance, in fiscal 2016. The difference between the initial accrual and subsequent cash payments was due to changes in foreign exchange rates.

As of September 30, 2015, Cabot has $2 million of accrued restructuring costs in the Consolidated Balance Sheet related to this closure, which is mainly comprised of accrued severance charges.

## Closure of Port Dickson, Malaysia Manufacturing Facility

On April 26, 2013, the Company announced that the Board of its carbon black joint venture, Cabot Malaysia Sdn. Bhd. ("CMSB"), decided to cease production at its Port Dickson, Malaysia facility. The facility ceased production in June 2013. The Company holds a 50.1 percent equity share in CMSB. The decision, which affected approximately 90 carbon black employees, was driven by the facility's manufacturing inefficiencies and raw materials costs.

During fiscal 2015, 2014 and 2013, the Company recorded pre-tax restructuring charges related to this plan of less than $1 million, $2 million and $18 million, respectively. These pre-tax restructuring costs were comprised mainly of accelerated depreciation and asset write-offs of $15 million, severance charges of $2 million, site demolition, clearing and environmental remediation charges of $2 million, and other closure related charges of $1 million. CMSB's net income or loss is attributable to Cabot Corporation and to the noncontrolling interest in the joint venture. The portion of the charges that are allocable to the noncontrolling interest in CMSB (49.9%) are recorded within Net income (loss) attributable to noncontrolling interests, net of tax, in the Consolidated Statements of Operations. The majority of actions related to closure of the plant were completed in fiscal 2014.

Cumulative net cash outlays related to this plan are expected to be approximately $4 million comprised primarily of $1 million for site demolition, clearing and environmental remediation, $2 million for severance, and $1 million for other closure related charges and does not include any gain expected to be recorded on the sale of land. Through September 30, 2015, CMSB has made approximately $3 million in cash payments related to this plan related mainly to severance and site demolition and clearing costs.

CMSB expects to make net cash payments of $1 million during fiscal 2016 and thereafter mainly comprised of site demolition, clearing and environmental remediation costs. Approximately $8 million is expected to be received from the sale of land in fiscal 2016, pending the completion of certain activities.

As of September 30, 2015, Cabot has less than $1 million of accrued restructuring costs in the Consolidated Balance Sheets related to this closure which is mainly comprised of accrued environmental and other charges.



## Other Activities

The Company has recorded pre-tax charges of approximately $13 million, $8 million and $13 million during fiscal 2015, 2014 and 2013, respectively, related to restructuring activities at several other locations. Fiscal 2015 charges are comprised of $7 million of severance charges, $4 million of assets write-offs and accelerated depreciation and $2 million of other costs and were comprised of charges at the Company's corporate headquarters in Boston, Massachusetts and Specialty Fluids facility in Bergen, Norway, as well as other locations. Fiscal 2014 charges are comprised of accelerated depreciation and asset write-offs of $5 million and severance charges of $3 million and were comprised of charges at the Company's carbon black facilities in Port Dickson, Malaysia and Maua, Brazil, as well as other locations. Fiscal 2013 costs are comprised of $8 million of severance charges, $3 million of accelerated depreciation and asset write-offs and $2 million of other expenses and were comprised of charges at the Company's research and development facility in Billerica, Massachusetts, certain Purification Solutions sites, and other locations. The Company anticipates that it will record additional charges of less than $1 million in fiscal 2016 related to these actions.

Through September 30, 2015, Cabot has made cash payments of $23 million related to these activities and expects to pay $5 million in fiscal 2016 mainly for severance and other closure related costs at the impacted locations.

As of September 30, 2015, Cabot has $5 million of accrued severance and other closure related costs in the Consolidated Balance Sheets related to these activities.

## Previous Actions and Sites Pending Sale

Beginning in fiscal 2009, the Company entered into several different restructuring plans which have been substantially completed, pending the sale of former manufacturing sites in Thane, India, and Hong Kong. The Company has incurred total cumulative pre-tax charges of approximately $165 million related to these plans through September 30, 2015, comprised of $67 million for severance charges, $66 million for accelerated depreciation and asset impairments, $10 million for environmental, demolition and site clearing costs, and $23 million of other closure related charges partially offset by gains on asset sales of $1 million. These amounts do not include any gain that may be recorded if the Company successfully sells its land rights and certain manufacturing related assets in India or Hong Kong.

Pre-tax restructuring expenses related to these plans were approximately $2 million, $1 million and $3 million during fiscal 2015, 2014 and 2013, respectively. Fiscal 2015 charges are comprised mainly of severance, accelerated depreciation and other expenses. Fiscal 2014 charges are comprised mainly of environmental charges and other post closure costs. Fiscal 2013 charges are comprised mainly of severance, accelerated depreciation and other expenses. Since fiscal 2009, Cabot has made net cash payments of $87 million related to these plans and expects to pay approximately $1 million in fiscal 2016 and thereafter. The remaining payments consist mainly of environmental and other closure related costs. These amounts do not include any proceeds that may be received if the Company successfully sells its land rights and certain manufacturing related assets in India or Hong Kong.

As of September 30, 2015, Cabot has $2 million of accrued environmental, severance and other closure related costs in the Consolidated Balance Sheets related to these activities.



## Note Q. Accumulated Other Comprehensive (Loss) Income

Changes in each component of Accumulated other comprehensive (loss) income, net of tax, are as follows for fiscal 2014 and 2015:

<table><tr><td></td><td>Currency Translation Adjustment</td><td>Unrealized Gains on Investment</td><td>Pension and Other Postretirement Benefit Liability Adjustment</td><td>Total</td></tr><tr><td>Balance at September 30, 2013 attributable to Cabot Corporation</td><td>$ 154</td><td>$ 2</td><td>$ (53)</td><td>103</td></tr><tr><td>Other comprehensive loss before reclassifications</td><td>(131)</td><td>—</td><td>(40)</td><td>(171)</td></tr><tr><td>Amounts reclassified from accumulated other comprehensive (loss) income</td><td>—</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Net other comprehensive items</td><td>23</td><td>2</td><td>(93)</td><td>(68)</td></tr><tr><td>Less: Noncontrolling interest</td><td>(4)</td><td>—</td><td>—</td><td>(4)</td></tr><tr><td>Balance at September 30, 2014 attributable to Cabot Corporation</td><td>27</td><td>2</td><td>(93)</td><td>(64)</td></tr><tr><td>Other comprehensive (loss) income before reclassifications</td><td>(270)</td><td>—</td><td>7</td><td>(263)</td></tr><tr><td>Amounts reclassified from accumulated other comprehensive income</td><td>—</td><td>—</td><td>24</td><td>24</td></tr><tr><td>Net other comprehensive items</td><td>(243)</td><td>2</td><td>(62)</td><td>(303)</td></tr><tr><td>Less: Noncontrolling interest</td><td>(4)</td><td>—</td><td>—</td><td>(4)</td></tr><tr><td>Balance at September 30, 2015 attributable to Cabot Corporation</td><td>$ (239)</td><td>$ 2</td><td>$ (62)</td><td>(299)</td></tr></table>

The amounts reclassified out of Accumulated other comprehensive (loss) income and into the Statements of Operations for the fiscal year ended September 30, 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="2">Affected Line Item in the Consolidated Statements of Operations</td><td colspan="3">September 30</td></tr><tr><td rowspan="2">2015</td><td rowspan="2">2014</td><td rowspan="2">2013</td><td colspan="2">(Dollars in Millions)</td></tr><tr><td colspan="2">(Dollars in Millions)</td></tr><tr><td>Pension and other postretirement benefit liability adjustment</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Amortization of actuarial losses</td><td>Net Periodic Benefit Cost- see Note N for details</td><td>$</td><td>(1)</td><td>$</td><td>3</td></tr><tr><td>Amortization of prior service cost</td><td>Net Periodic Benefit Cost- see Note N for details</td><td>4</td><td>(3)</td><td></td><td>(3)</td></tr><tr><td>Settlement costs</td><td>Net Periodic Benefit Cost - see Note N for details</td><td>27</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Total before tax</td><td>Provision for income taxes</td><td>30</td><td>—</td><td>2</td><td></td></tr><tr><td>Tax impact</td><td></td><td>(6)</td><td>—</td><td>—</td><td></td></tr><tr><td>Total after tax</td><td></td><td>$ 24</td><td>$</td><td>$ 2</td><td></td></tr></table>



## Note R. Earnings Per Share

The following tables summarize the components of the basic and diluted earnings per common share computations:

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td><td></td></tr><tr><td colspan="4">(In millions, except per share amounts)</td></tr><tr><td>Basic EPS:</td><td></td><td></td><td></td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (334)</td><td>$ 199</td><td>$ 153</td><td></td></tr><tr><td>Less: Dividends and dividend equivalents to participating securities</td><td>—</td><td>1</td><td>—</td><td></td></tr><tr><td>Less: Undistributed earnings allocated to participating securities \( ^{(1)} \)</td><td>—</td><td>1</td><td>1</td><td></td></tr><tr><td>(Loss) earnings allocated to common shareholders (numerator)</td><td>$ (334)</td><td>$ 197</td><td>$ 152</td><td></td></tr><tr><td>Weighted average common shares and participating securities outstanding</td><td>63.9</td><td>65.0</td><td>64.4</td><td></td></tr><tr><td>Less: Participating securities \( ^{(1)} \)</td><td>0.5</td><td>0.6</td><td>0.6</td><td></td></tr><tr><td>Adjusted weighted average common shares (denominator)</td><td>63.4</td><td>64.4</td><td>63.8</td><td></td></tr><tr><td>Per share amounts—basic:</td><td></td><td></td><td></td><td></td></tr><tr><td>(Loss) income from continuing operations attributable to Cabot Corporation</td><td>$ (5.29)</td><td>$ 3.04</td><td>$ 2.39</td><td></td></tr><tr><td>Income (loss) from discontinued operations</td><td>0.02</td><td>0.02</td><td>(0.01)</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (5.27)</td><td>$ 3.06</td><td>$ 2.38</td><td></td></tr><tr><td>Diluted EPS:</td><td></td><td></td><td></td><td></td></tr><tr><td>(Loss) earnings allocated to common shareholders</td><td>$ (334)</td><td>$ 197</td><td>$ 152</td><td></td></tr><tr><td>Plus: Earnings allocated to participating securities</td><td>—</td><td>1</td><td>1</td><td></td></tr><tr><td>Less: Adjusted earnings allocated to participating securities \( ^{(2)} \)</td><td>—</td><td>1</td><td>1</td><td></td></tr><tr><td>(Loss) earnings available to common shares (numerator)</td><td>$ (334)</td><td>$ 197</td><td>$ 152</td><td></td></tr><tr><td>Adjusted weighted average common shares outstanding</td><td>63.4</td><td>64.4</td><td>63.8</td><td></td></tr><tr><td>Effect of dilutive securities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Common shares issuable \( ^{(3)} \)</td><td>—</td><td>0.7</td><td>0.7</td><td></td></tr><tr><td>Adjusted weighted average common shares (denominator)</td><td>63.4</td><td>65.1</td><td>64.5</td><td></td></tr><tr><td>Per share amounts—diluted:</td><td></td><td></td><td></td><td></td></tr><tr><td>(Loss) income from continuing operations attributable to Cabot Corporation</td><td>$ (5.29)</td><td>$ 3.01</td><td>$ 2.37</td><td></td></tr><tr><td>Income (loss) from discontinued operations</td><td>0.02</td><td>0.02</td><td>(0.01)</td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (5.27)</td><td>$ 3.03</td><td>$ 2.36</td><td></td></tr></table>

(1) Participating securities consist of shares of unvested restricted stock, vested restricted stock awards held by employees in which Cabot has a security interest, and unvested time-based restricted stock units.



Undistributed earnings are the earnings which remain after dividends declared during the period are assumed to be distributed to the common and participating shareholders. Undistributed earnings are allocated to common and participating shareholders on the same basis as dividend distributions. The calculation of undistributed earnings is as follows:

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Calculation of undistributed earnings:</td><td></td><td></td><td></td><td></td></tr><tr><td>Net (loss) income attributable to Cabot Corporation</td><td>$ (334)</td><td>$ 199</td><td>$ 153</td><td></td></tr><tr><td>Less: Dividends declared on common stock</td><td>56</td><td>54</td><td>51</td><td></td></tr><tr><td>Less: Dividends and dividend equivalents to participating securities</td><td>—</td><td>1</td><td>—</td><td></td></tr><tr><td>Undistributed (loss) earnings</td><td>$ (390)</td><td>$ 144</td><td>$ 102</td><td></td></tr><tr><td>Allocation of undistributed earnings:</td><td></td><td></td><td></td><td></td></tr><tr><td>Undistributed (loss) earnings allocated to common shareholders</td><td>$ (390)</td><td>$ 143</td><td>$ 101</td><td></td></tr><tr><td>Undistributed earnings allocated to participating securities</td><td>—</td><td>1</td><td>1</td><td></td></tr><tr><td>Undistributed (loss) earnings</td><td>$ (390)</td><td>$ 144</td><td>$ 102</td><td></td></tr></table>

(2) Undistributed (loss) earnings are adjusted for the assumed distribution of dividends to the dilutive securities, which are described in (3) below, and then reallocated to participating securities.

(3) Represents incremental shares of common stock from the (i) assumed exercise of stock options issued under Cabot’s equity incentive plans; (ii) assumed issuance of shares to employees pursuant to the Company’s Supplemental 401(k) Plan; and (iii) assumed issuance of shares for outstanding and achieved performance-based stock unit awards issued under Cabot’s equity incentive plans using the treasury stock method. For fiscal 2015, 2014 and 2013, respectively, 897,056, 197,072 and 301,328 incremental shares of common stock were not included in the calculation of diluted earnings per share because the inclusion of these shares would have been antidilutive.

## Note S. Income Taxes

Income from continuing operations before income taxes and equity in net earnings of affiliated companies was as follows:

<table><tr><td rowspan="3"></td><td colspan="4">Years ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Income from continuing operations:</td><td></td><td></td><td></td><td></td></tr><tr><td>Domestic</td><td>$ (439)</td><td>$ 50</td><td>$ 40</td><td></td></tr><tr><td>Foreign</td><td>62</td><td>258</td><td>170</td><td></td></tr><tr><td>Total</td><td>$ (377)</td><td>$ 308</td><td>$ 210</td><td></td></tr></table>

Tax provision (benefit) for income taxes consisted of the following:

<table><tr><td rowspan="3"></td><td colspan="4">Years ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>U.S. federal and state:</td><td></td><td></td><td></td><td></td></tr><tr><td>Current</td><td>$ (7)</td><td>$ (4)</td><td>$ (3)</td><td></td></tr><tr><td>Deferred</td><td>(74)</td><td>(4)</td><td>(6)</td><td></td></tr><tr><td>Total</td><td>(81)</td><td>(8)</td><td>(9)</td><td></td></tr><tr><td>Foreign:</td><td></td><td></td><td></td><td></td></tr><tr><td>Current</td><td>48</td><td>86</td><td>70</td><td></td></tr><tr><td>Deferred</td><td>(12)</td><td>14</td><td>(1)</td><td></td></tr><tr><td>Total</td><td>36</td><td>100</td><td>69</td><td></td></tr><tr><td>Total U.S. and foreign</td><td>$ (45)</td><td>$ 92</td><td>$ 60</td><td></td></tr></table>



The provision (benefit) for income taxes differed from the provision for income taxes as calculated using the U.S. statutory rate as follows:

<table><tr><td rowspan="3"></td><td colspan="4">Years ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Computed tax expense at the federal statutory rate</td><td>$</td><td>(132)</td><td>$</td><td>108</td></tr><tr><td>Foreign income:</td><td></td><td></td><td></td><td></td></tr><tr><td>Impact of taxation at different rates, repatriation and other</td><td></td><td>(24)</td><td>(29)</td><td>(27)</td></tr><tr><td>Impact of (decrease) increase in valuation allowance on deferred taxes</td><td></td><td>(7)</td><td>20</td><td>—</td></tr><tr><td>Impact of investment incentive credits</td><td></td><td>—</td><td>—</td><td>(1)</td></tr><tr><td>Impact of foreign losses for which a current tax benefit is not available</td><td></td><td>9</td><td>7</td><td>9</td></tr><tr><td>Impact of non-deductible net currency losses</td><td></td><td>(1)</td><td>—</td><td>18</td></tr><tr><td>U.S. and state benefits from research and experimentation activities</td><td></td><td>(2)</td><td>—</td><td>(4)</td></tr><tr><td>Tax settlements</td><td></td><td>(7)</td><td>(7)</td><td>(6)</td></tr><tr><td>Impact of goodwill impairment charge</td><td></td><td>123</td><td>—</td><td>—</td></tr><tr><td>Nontaxable gain on existing equity investment</td><td></td><td>—</td><td>(10)</td><td>—</td></tr><tr><td>Permanent differences, net</td><td></td><td>—</td><td>3</td><td>(4)</td></tr><tr><td>State taxes, net of federal effect</td><td></td><td>(4)</td><td>—</td><td>1</td></tr><tr><td>Total</td><td>$</td><td>(45)</td><td>$</td><td>92</td></tr></table>

Significant components of deferred income taxes were as follows:

<table><tr><td rowspan="3"></td><td colspan="3">September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td></tr><tr><td colspan="3">(Dollars in millions)</td></tr><tr><td>Deferred tax assets:</td><td></td><td></td><td></td></tr><tr><td>Deferred expenses</td><td>$</td><td>38</td><td>$</td></tr><tr><td>Intangible assets</td><td></td><td>32</td><td></td></tr><tr><td>Inventory</td><td></td><td>9</td><td></td></tr><tr><td>Other</td><td></td><td>3</td><td></td></tr><tr><td>Pension and other benefits</td><td></td><td>72</td><td></td></tr><tr><td>Net operating loss carry-forwards</td><td></td><td>145</td><td></td></tr><tr><td>Foreign tax credit carry-forwards</td><td></td><td>42</td><td></td></tr><tr><td>R&amp;D credit carry-forwards</td><td></td><td>31</td><td></td></tr><tr><td>Other business credit carry-forwards</td><td></td><td>40</td><td></td></tr><tr><td>Subtotal</td><td></td><td>412</td><td></td></tr><tr><td>Valuation allowances</td><td></td><td>(161)</td><td></td></tr><tr><td>Total deferred tax assets</td><td>$</td><td>251</td><td>$</td></tr><tr><td></td><td colspan="3">September 30</td></tr><tr><td></td><td>2015</td><td colspan="2">2014</td></tr><tr><td></td><td colspan="3">(Dollars in millions)</td></tr><tr><td>Deferred tax liabilities:</td><td></td><td></td><td></td></tr><tr><td>Intangible assets</td><td>$</td><td>—</td><td>$</td></tr><tr><td>Property, plant and equipment</td><td></td><td>(116)</td><td></td></tr><tr><td>Total deferred tax liabilities</td><td>$</td><td>(116)</td><td>$</td></tr></table>

In the fiscal 2015 tax benefit, Cabot recorded $13 million of discrete tax benefits including benefits of $7 million for tax settlements, $4 million for repatriation, and $2 million for the renewal of the U.S. research and experimentation credit.



In the fiscal 2014 tax provision, Cabot recorded $17 million of net discrete tax charges including a $20 million charge for a valuation allowance on deferred tax assets in a foreign jurisdiction, a $2 million charge for return to provision adjustments, a $2 million charge for interest on uncertain tax positions and a $4 million charge for miscellaneous tax items, offset by an $11 million net tax benefit for tax audit settlements.

In the fiscal 2013 tax provision, Cabot recorded $3 million of net discrete tax charges including a $13 million foreign currency charge, offset by $10 million of net tax benefit related to tax settlements, renewal of the U.S. research and experimentation credit, and other miscellaneous tax items.

Approximately $677 million of net operating loss carryforwards (“NOLs”) and $114 million of other tax credit carryforwards remain at September 30, 2015. The benefits of these carryforwards are dependent upon taxable income during the carryforward period in the jurisdictions in which they arose. Accordingly, a valuation allowance has been provided where management has determined that it is more likely than not that the carryforwards will not be utilized. The following table provides detail surrounding the expiration dates of these carryforwards:

<table><tr><td></td><td>NOLs(Dollars in millions)</td><td>Credits</td></tr><tr><td>Expiration periods</td><td></td><td></td></tr><tr><td>2016 to 2022</td><td>$ 323</td><td>$ 51</td></tr><tr><td>2023 and thereafter</td><td>95</td><td>41</td></tr><tr><td>Indefinite carry-forwards</td><td>259</td><td>22</td></tr><tr><td>Total</td><td>$ 677</td><td>$ 114</td></tr></table>

As of September 30, 2015, provisions have not been made for U.S. income taxes or non-U.S. withholding taxes on approximately $1.5 billion of undistributed earnings of non-U.S. subsidiaries, as these earnings are considered indefinitely reinvested. Cabot continually reviews the financial position and forecasted cash flows of its U.S. consolidated group and foreign subsidiaries in order to reaffirm the Company's intent and ability to continue to indefinitely reinvest earnings of its foreign subsidiaries or whether such earnings will need to be repatriated in the foreseeable future. Such review encompasses operational needs and future capital investments. From time to time, however, the Company's intentions relative to specific indefinitely reinvested amounts change because of certain unique circumstances. These earnings could become subject to U.S. income taxes and non-U.S. withholding taxes if they were remitted as dividends, were loaned to Cabot Corporation or a U.S. subsidiary, or if Cabot should sell its stock in the subsidiaries with the reinvested earnings.

As of September 30, 2015, net deferred tax assets of $155 million are in the U.S. Management believes that the Company’s history of generating domestic profits provides adequate evidence that it is more likely than not that all of the U.S. net deferred tax assets will be realized in the normal course of business. U.S. income from continuing operations adjusted for U.S. permanent differences and excluding the impairment of long-lived assets within the U.S. (see Note G) was a profit of $75 million for the year ended September 30, 2015 and was a cumulative profit of $190 million for the three years ended September 30, 2015 including dividends from non-U.S. subsidiaries. Realization of deferred tax assets is dependent upon future taxable income generated over an extended period of time.

As of September 30, 2015, the Company needs to generate approximately $443 million in cumulative future U.S. taxable income at various times over approximately 20 years to realize all of its net U.S. deferred tax assets. The Company reviews its forecast in relation to actual results and expected trends on a quarterly basis. Failure to achieve operating income targets may change the Company’s assessment regarding the realization of Cabot’s deferred tax assets and such change could result in a valuation allowance being recorded against some or all of the Company’s deferred tax assets. Any increase in a valuation allowance would result in additional income tax expense, lower stockholders’ equity and could have a significant impact on Cabot’s earnings in future periods.

The valuation allowances at September 30, 2015 and 2014 represent management’s best estimate of the non-realizable portion of the deferred tax assets. The valuation allowance decreased by $25 million in 2015 primarily due to reduction in value of certain future tax benefits and net operating losses generated or acquired that are included in deferred tax assets. The valuation allowance increased by $20 million in 2014 due to the uncertainty of the ultimate realization of certain future tax benefits and net operating losses generated or acquired that are included in deferred tax assets.



Cabot has filed its tax returns in accordance with the tax laws in each jurisdiction and recognizes tax benefits for uncertain tax positions when the position would more likely than not be sustained based on its technical merits and recognizes measurement adjustments when needed. As of September 30, 2015, the total amount of unrecognized tax benefits was $30 million, of which $16 million was recorded in the Company's Consolidated Balance Sheet and $14 million of deferred tax assets, principally related to state net operating loss carry-forwards, have not been recorded. In addition, accruals of $1 million and $8 million have been recorded for penalties and interest, respectively, as of September 30, 2015 and $1 million and $11 million, respectively, as of September 30, 2014. Total penalties and interest recorded in the tax provision in the Consolidated Statement of Operations was $2 million in fiscal 2015 and $3 million in both fiscal 2014 and 2013. If the unrecognized tax benefits were recognized at a given point in time, there would be approximately $20 million favorable impact on the Company's tax provision before consideration of the impact of the potential need for valuation allowances.

A reconciliation of the beginning and ending amount of unrecognized tax benefits for fiscal years 2015, 2014 and 2013 is as follows:

<table><tr><td rowspan="3"></td><td colspan="4">Years ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Balance at beginning of the year</td><td>41</td><td>50</td><td>55</td><td></td></tr><tr><td>Additions based on tax provisions related to the current year</td><td>1</td><td>1</td><td>1</td><td></td></tr><tr><td>Additions for tax positions of prior years</td><td>—</td><td>—</td><td>2</td><td></td></tr><tr><td>Reductions of tax provisions of prior years</td><td>(1)</td><td>(1)</td><td>(5)</td><td></td></tr><tr><td>Reductions related to settlements</td><td>(9)</td><td>(5)</td><td>—</td><td></td></tr><tr><td>Reductions from lapse of statute of limitations</td><td>(2)</td><td>(4)</td><td>(3)</td><td></td></tr><tr><td>Balance at end of the year</td><td>30</td><td>41</td><td>50</td><td></td></tr></table>

Certain Cabot subsidiaries are under audit in jurisdictions outside of the U.S. In addition, certain statutes of limitations are scheduled to expire in the near future. It is reasonably possible that a further change in the unrecognized tax benefits may occur within the next twelve months related to the settlement of one or more of these audits or the lapse of applicable statutes of limitations; however, an estimated range of the impact on the unrecognized tax benefits cannot be quantified at this time.

Cabot files U.S. federal and state and non-U.S. income tax returns in jurisdictions with varying statutes of limitations. The 2012 through 2014 tax years generally remain subject to examination by the IRS and various tax years from 2005 through 2014 remain subject to examination by the respective state tax authorities. In significant non-U.S. jurisdictions, various tax years from 2002 through 2014 remain subject to examination by their respective tax authorities. As of September 30, 2015, Cabot's significant non-U.S. jurisdictions include Canada, China, France, Germany, Italy, Japan, and the Netherlands.

## Note T. Commitments and Contingencies

## Operating Lease Commitments

Cabot leases certain transportation vehicles, warehouse facilities, office space, machinery and equipment under cancelable and non-cancelable operating leases, most of which expire within ten years and may be renewed by Cabot. Escalation clauses, lease payments dependent on existing rates/indexes and other lease concessions are included in the minimum lease payments and such lease payments are recognized on a straight-line basis over the minimum lease term. Rent expense under such arrangements for fiscal 2015, 2014 and 2013 totaled $29 million, $26 million and $23 million, respectively. Future minimum rental commitments under non-cancelable leases are as follows:

<table><tr><td></td><td>(Dollars in millions)</td></tr><tr><td>2016</td><td>21</td></tr><tr><td>2017</td><td>14</td></tr><tr><td>2018</td><td>12</td></tr><tr><td>2019</td><td>10</td></tr><tr><td>2020</td><td>8</td></tr><tr><td>2021 and thereafter</td><td>67</td></tr><tr><td>Total future minimum rental commitments</td><td>132</td></tr></table>



## Other Long-Term Commitments

Cabot has entered into long-term purchase agreements primarily for the purchase of raw materials. Under certain of these agreements, the quantity of material being purchased is fixed, but the price paid changes as market prices change. Raw materials purchased under these agreements by segment for fiscal 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Reinforcement Materials</td><td>$ 276</td><td>$ 354</td><td>$ 371</td><td></td></tr><tr><td>Performance Chemicals</td><td>62</td><td>43</td><td>34</td><td></td></tr><tr><td>Purification Solutions</td><td>14</td><td>32</td><td>34</td><td></td></tr><tr><td>Other</td><td>—</td><td>3</td><td>2</td><td></td></tr><tr><td>Total</td><td>$ 352</td><td>$ 432</td><td>$ 441</td><td></td></tr></table>

Included in the table above are raw materials purchases from noncontrolling shareholders of consolidated subsidiaries. These purchases were $169 million, $241 million and $150 million during fiscal 2015, 2014 and 2013, respectively, and accounts payable and accrued liabilities owed to noncontrolling shareholders as of September 30, 2015 and 2014, were $8 million and $16 million, respectively.

The purchase commitments for Reinforcement Materials, Performance Chemicals, and Purification Solutions covered by these agreements are with various suppliers and purchases are expected to take place as follows:

<table><tr><td rowspan="3"></td><td colspan="9">Payments Due by Fiscal Year</td></tr><tr><td>2016</td><td>2017</td><td>2018</td><td>2019</td><td>2020</td><td colspan="3">Thereafter</td><td>Total</td></tr><tr><td colspan="8">(Dollars in millions)</td><td></td></tr><tr><td>Reinforcement Materials</td><td>$ 228</td><td>$ 177</td><td>$ 176</td><td>$ 173</td><td>$ 137</td><td>$ 1,821</td><td>$ 2,712</td><td></td><td></td></tr><tr><td>Performance Chemicals</td><td>60</td><td>38</td><td>33</td><td>33</td><td>30</td><td>178</td><td>372</td><td></td><td></td></tr><tr><td>Purification Solutions</td><td>14</td><td>10</td><td>7</td><td>6</td><td>7</td><td>2</td><td>46</td><td></td><td></td></tr><tr><td>Total</td><td>$ 302</td><td>$ 225</td><td>$ 216</td><td>$ 212</td><td>$ 174</td><td>$ 2,001</td><td>$ 3,130</td><td></td><td></td></tr></table>

These commitments have been estimated using current market prices. As noted above, these will fluctuate based on the actual market price at the time of purchase.

## Guarantee Agreements

Cabot has provided certain indemnities pursuant to which it may be required to make payments to an indemnified party in connection with certain transactions and agreements. In connection with certain acquisitions and divestitures, Cabot has provided routine indemnities with respect to such matters as environmental, tax, insurance, product and employee liabilities. In connection with various other agreements, including service and supply agreements with customers, Cabot has provided indemnities for certain contingencies and routine warranties. Cabot is unable to estimate the maximum potential liability for these types of indemnities as a maximum obligation is not explicitly stated in most cases and the amounts, if any, are dependent upon the outcome of future contingent events, the nature and likelihood of which cannot be reasonably estimated. The duration of the indemnities vary, and in many cases are indefinite. Cabot has not recorded any liability for these indemnities in the consolidated financial statements, except as otherwise disclosed.

## Self-Insurance and Retention for Certain Contingencies

The Company is partially self-insured for certain third-party liabilities globally, as well as workers' compensation and employee medical benefits in the United States. The third-party and workers' compensation liabilities are managed through a wholly-owned insurance captive and the related liabilities are included in the consolidated financial statements. The employee medical obligations are managed by a third-party provider and the related liabilities are included in the consolidated financial statements. To limit Cabot's potential liabilities for these risks, however, the Company purchases insurance from third-parties that provides individual and aggregate stop-loss protection. The aggregate self-insured liability in fiscal 2015 for combined U.S. / Canadian third-party liabilities and U.S. workers' compensation was $6.9 million, and the retention for medical costs in the United States is at most $225,000 per person per annum. There is no aggregate self-insurance limitation outside of the U.S. and Canada for third party liabilities.



## Contingencies

Cabot is a defendant, or potentially responsible party, in various lawsuits and environmental proceedings wherein substantial amounts are claimed or at issue.

## Environmental Matters

As of September 30, 2015 and September 30, 2014, Cabot had $16 million and $17 million, respectively, reserved for environmental matters. These environmental matters mainly relate to closed sites. These reserves represent Cabot's best estimates of the probable costs to be incurred at those sites where costs are reasonably estimable based on the Company's analysis of the extent of clean up required, alternative clean-up methods available, abilities of other responsible parties to contribute and its interpretation of laws and regulations applicable to each site. In fiscal 2015 and 2014, there was $4 million and $4 million in Accounts payable and accrued liabilities and $12 million and $13 million in Other liabilities, respectively, in the Consolidated Balance Sheets for environmental matters. Cabot reviews the adequacy of the reserves as circumstances change at individual sites and adjusts the reserves as appropriate. Almost all of Cabot's environmental issues relate to sites that are mature and have been investigated and studied and, in many cases, are subject to agreed upon remediation plans. However, depending on the results of future testing, changes in risk assessment practices, remediation techniques and regulatory requirements, newly discovered conditions, and other factors, it is reasonably possible that the Company could incur additional costs in excess of environmental reserves currently recorded. Management estimates, based on the latest available information, that any such future environmental remediation costs that are reasonably possible to be in excess of amounts already recorded would be immaterial to the Company's consolidated financial statements.

Charges for environmental expense were $1 million, $15 million, and $1 million in fiscal 2015, 2014 and 2013, respectively, which are included in Cost of sales in the Consolidated Statements of Operations. Cash payments related to these environmental matters were $2 million in fiscal 2015, $3 million in fiscal 2014, and $2 million in fiscal 2013.

The operation and maintenance component of the $16 million reserve for environmental matters was $7 million at September 30, 2015. Cabot expects to make payments of $2 million in fiscal 2016, $3 million in fiscal 2017 and 2018, less than $1 million in fiscal 2019 and 2020, and a total of $6 million thereafter.

In November 2013, Cabot entered into a Consent Decree with the United States Environmental Protection Agency (“EPA”) and the Louisiana Department of Environmental Quality (“LDEQ”) regarding Cabot’s three carbon black manufacturing facilities in the United States. This settlement is related to EPA’s national enforcement initiative focused on the U.S. carbon black manufacturing sector alleging non-compliance with certain regulatory and permitting requirements under The Clean Air Act, including the New Source Review (“NSR”) construction permitting requirements. Pursuant to this settlement, Cabot paid a combined $975,000 civil penalty to EPA and LDEQ, agreed to fund environmental mitigation projects in the three communities where the plants are located for a total cost of approximately $450,000, two of which have been completed, and will install technology controls for sulfur dioxide and nitrogen oxide.

## Other Matters

## Respirator Liabilities

Cabot has exposure in connection with a safety respiratory products business that a subsidiary acquired from American Optical Corporation (“AO”) in an April 1990 asset purchase transaction. The subsidiary manufactured respirators under the AO brand and disposed of that business in July 1995. In connection with its acquisition of the business, the subsidiary agreed, in certain circumstances, to assume a portion of AO’s liabilities, including costs of legal fees together with amounts paid in settlements and judgments, allocable to AO respiratory products used prior to the 1990 purchase by the Cabot subsidiary. In exchange for the subsidiary’s assumption of certain of AO’s respirator liabilities, AO agreed to provide to the subsidiary the benefits of: (i) AO’s insurance coverage for the period prior to the 1990 acquisition and (ii) a former owner’s indemnity of AO holding it harmless from any liability allocable to AO respiratory products used prior to May 1982.

Generally, these respirator liabilities involve claims for personal injury, including asbestosis, silicosis and coal worker's pneumoconiosis, allegedly resulting from the use of respirators that are alleged to have been negligently designed and/or labeled. Neither Cabot, nor its past or present subsidiaries, at any time manufactured asbestos or asbestos-containing products. At no time did this respiratory product line represent a significant portion of the respirator market.

The subsidiary transferred the business to Aearo Corporation (“Aearo”) in July 1995. Cabot agreed to have the subsidiary retain certain liabilities associated with exposure to asbestos and silica while using respirators prior to the 1995 transaction so long as Aearo paid, and continues to pay, Cabot an annual fee of $400,000. Aearo can discontinue payment of the fee at any time, in which case it will assume the responsibility for and indemnify Cabot against those liabilities which Cabot’s subsidiary had agreed to retain. The Company anticipates that it will continue to receive payment of the $400,000 fee from Aearo and thereby retain these liabilities for the foreseeable future. Cabot has no liability in connection with any products manufactured by Aearo after 1995.



In addition to Cabot’s subsidiary and as described above, other parties are responsible for significant portions of the costs of respirator liabilities, leaving Cabot’s subsidiary with a portion of the liability in only some of the pending cases. These parties include Aearo, AO, AO’s insurers, another former owner and its insurers and a third-party manufacturer of respirators formerly sold under the AO brand and its insurers (collectively, with the Company’s subsidiary, the “Payor Group”).

As of September 30, 2015 and 2014, there were approximately 38,000 and 41,000 claimants, respectively, in pending cases asserting claims against AO in connection with respiratory products. Cabot has contributed to the Payor Group’s defense and settlement costs with respect to a percentage of pending claims depending on several factors, including the period of alleged product use. In order to quantify Cabot’s estimated share of liability for pending and future respirator liability claims, Cabot has engaged, through counsel, the assistance of Hamilton, Rabinovitz & Alschuler, Inc. (“HR&A”), a leading consulting firm in the field of tort liability valuation. The methodology used by HR&A addresses the complexities surrounding Cabot’s potential liability by making assumptions about future claimants with respect to periods of asbestos, silica and coal mine dust exposure and respirator use. Using those and other assumptions, HR&A estimates the number of future asbestos, silica and coal mine dust claims that will be filed and the related costs that would be incurred in resolving both currently pending and future claims. On this basis, HR&A then estimates the value of the share of these liabilities that reflect Cabot’s period of direct manufacture and Cabot’s contractual obligations. Based on the HR&A estimates, Cabot has recorded an $11 million reserve to accrue for its estimated share of liability for pending and future respirator claims. The Company made payments related to its respirator liability of $2 million in each of fiscal 2015, 2014 and 2013.

The Company’s current estimate of the cost of its share of existing and future respirator liability claims is based on facts and circumstances existing at this time. Developments that could affect the Company’s estimate include, but are not limited to, (i) significant changes in the number of future claims, (ii) changes in the rate of dismissals without payment of pending silica and non-malignant asbestos claims, (iii) significant changes in the average cost of resolving claims, (iv) significant changes in the legal costs of defending these claims, (v) changes in the nature of claims received, (vi) changes in the law and procedure applicable to these claims, (vii) the financial viability of members of the Payor Group, (viii) a change in the availability of the insurance coverage of the members of the Payor Group or the indemnity provided by AO’s former owner, (ix) changes in the allocation of costs among the Payor Group and (x) a determination that the assumptions that were used to estimate the Company’s share of liability are no longer reasonable. The Company cannot determine the impact of these potential developments on its current estimate of its share of liability for existing and future claims. Accordingly, the actual amount of these liabilities for existing and future claims could be different than the reserved amount.

## Other

The Company has various other lawsuits, claims and contingent liabilities arising in the ordinary course of its business and with respect to the Company’s divested businesses. In the opinion of the Company, although final disposition of some or all of these other suits and claims may impact the Company’s consolidated financial statements in a particular period, they are not expected in the aggregate to have a material adverse effect on the Company’s consolidated financial statements.

## Note U. Concentration of Credit Risk

Credit risk represents the loss that would be recognized if counterparties failed to completely perform as contracted. Financial instruments that subject Cabot to credit risk consist principally of cash and cash equivalents, investments, trade receivables and derivatives. Cabot maintains financial instruments with major banks and financial institutions. The Company has not experienced any material credit losses related to these instruments held at these financial institutions. Furthermore, concentrations of credit risk exist for groups of customers when they have similar economic characteristics that would cause their ability to meet contractual obligations to be similarly affected by changes in economic or other conditions.

No customer individually represented 10% or more of consolidated net sales for fiscal 2015, 2014 and 2013.

Tire manufacturers comprise a significant portion of Cabot’s trade receivable balance. The accounts receivable balance for these significant customers as a group is as follows:

<table><tr><td rowspan="3"></td><td colspan="2">September 30</td></tr><tr><td>2015</td><td>2014</td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Tire manufacturers</td><td>217</td><td>311</td></tr></table>

Cabot has not experienced significant losses in the past from these customers. Cabot monitors its exposure to customers to manage potential credit losses.



## Note V. Financial Information by Segment & Geographic Area

## Segment Information

The Company identifies a business as an operating segment if: i) it engages in business activities from which it may earn revenues and incur expenses; ii) its operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”) to make decisions about resources to be allocated to the segment and assess its performance; and iii) it has available discrete financial information. The Company has determined that all of its businesses are operating segments. The CODM reviews financial information at the operating segment level to allocate resources and to assess the operating results and financial performance for each operating segment. Operating segments are aggregated into a reportable segment if the operating segments are determined to have similar economic characteristics and if the operating segments are similar in the following areas: i) nature of products and services; ii) nature of production processes; iii) type or class of customer for their products and services; iv) methods used to distribute the products or provide services; and v) if applicable, the nature of the regulatory environment.

In the first quarter of fiscal 2015, the Company realigned its business reporting structure into four segments that consist of Reinforcement Materials, Performance Chemicals, Purification Solutions and Specialty Fluids. Segment results have been recast for all periods presented to reflect the realignment of the Company's global business segments. The new segment structure is designed to improve efficiency and resource prioritization and reflects how the Company's CODM reviews segment results to assess performance and allocate resources.

The Reinforcement Materials segment combines the rubber blacks and elastomer composites product lines.

The Performance Chemicals segment combines the specialty carbons and compounds and inkjet colorants product lines into the Specialty Carbons and Formulations business, and combines the fumed metal oxides and aerogel product lines into the Metal Oxides business. These businesses are similar in terms of economic characteristics, nature of products, processes, customer class and product distribution methods, and therefore have been aggregated into one reportable segment.

The Purification Solutions segment represents the Company’s activated carbon business and the Specialty Fluids segment includes cesium formate oil and gas drilling fluids and high-purity fine cesium chemicals product lines.

Reportable segment operating profit (loss) before interest and taxes (“Segment EBIT”) is presented for each reportable segment in the financial information by the reportable segment table below on the line entitled Income (loss) from continuing operations before taxes. Segment EBIT excludes certain items, meaning items management does not consider representative of segment results. In addition, Segment EBIT includes Equity in earnings of affiliated companies, net of tax, the full operating results of a contractual joint venture in Purification Solutions, royalties, Net income attributable to noncontrolling interests, net of tax, and discounting charges for certain Notes receivable, but excludes Interest expense, foreign currency transaction gains and losses, interest income, dividend income, unearned revenue, the effects of LIFO accounting for inventory, general unallocated expense and unallocated corporate costs. Segment assets exclude cash, short-term investments, cost investments, income taxes receivable, deferred taxes and headquarters’ assets, which are included in unallocated and other. Expenditures for additions to long-lived assets include total equity and other investments (including available-for-sale securities) and property, plant and equipment.

## Reinforcement Materials

Carbon black is a form of elemental carbon that is manufactured in a highly controlled process to produce particles and aggregates of varied structure and surface chemistry, resulting in many different performance characteristics for a wide variety of applications. Rubber grade carbon blacks are used to enhance the physical properties of the systems and applications in which they are incorporated.

Our rubber blacks products are used in tires and industrial products. Rubber blacks have traditionally been used in the tire industry as a rubber reinforcing agent to increase tread durability and are also used as a performance additive to reduce rolling resistance and improve traction. In industrial products such as hoses, belts, extruded profiles and molded goods, rubber blacks are used to improve the physical performance of the product, including the product's physical strength, fluid resistance, conductivity and resistivity.



## Performance Chemicals

Performance Chemicals is comprised of two businesses: (i) our Specialty Carbons and Formulations business, which manufactures and sells specialty grades of carbon black, specialty compounds and inkjet colorants, and (ii) our Metal Oxides business, which manufactures and sells fumed silica, fumed alumina and dispersions thereof and aerogel. In Performance Chemicals, we design, manufacture and sell materials that deliver performance in a broad range of customer applications across the automotive, construction and infrastructure, inkjet printing, electronics, and consumer products sectors. The net sales from each of these businesses for fiscal 2015, 2014 and 2013 are as follows:

<table><tr><td rowspan="3"></td><td colspan="5">Years Ended September 30</td></tr><tr><td rowspan="2">2015</td><td colspan="2">2014</td><td rowspan="2">2013</td><td rowspan="2"></td></tr><tr><td colspan="2">(Dollars in millions)</td></tr><tr><td>Specialty Carbons and Formulations</td><td>$     630</td><td>$     709</td><td>$     686</td><td></td><td></td></tr><tr><td>Metal Oxides</td><td>297</td><td>313</td><td>303</td><td></td><td></td></tr><tr><td>Total Performance Chemicals</td><td>$     927</td><td>$     1,022</td><td>$     989</td><td></td><td></td></tr></table>

## Specialty Carbons and Formulations Business

Carbon black is a form of elemental carbon that is manufactured in a highly controlled process to produce particles and aggregates of varied structure and surface chemistry, resulting in many different performance characteristics for a wide variety of applications.

Our specialty grades of carbon black are used to impart color, provide rheology control, enhance conductivity and static charge control, provide UV protection, enhance mechanical properties, and provide formulation flexibility through surface treatment. These specialty carbon products are used in a wide variety of applications, such as inks, coatings, cables, pipes, toners and electronics. Our thermoplastic concentrates and compounds, which we refer to as “specialty compounds”, are derived from our specialty grades of carbon black mixed with polymers and other additives. These products are generally used by plastics formulators in thermoplastic polymer applications, such as cable jacketings, films, fibers, moldings, pipes and sheets, as they are generally easier to handle, mix and disperse for these applications than carbon black alone. In addition, our electrically conductive compound products generally are used to reduce the risk of damage from electrostatic discharge in plastics applications.

Our inkjet colorants are high-quality pigment-based black and color dispersions based on our patented, carbon black, surface modification technology. The dispersions are used in aqueous inkjet inks to impart color, sharp print characteristics and durability, while maintaining high printhead reliability. These products are used in various inkjet printing applications, including commercial printing, small office/home office and corporate office, and niche applications that require a high level of dispersibility and colloidal stability. Our inkjet inks, which utilize our pigment-based colorant dispersions, are used in the emerging commercial printing segment for digital print.

## Metal Oxides Business

Fumed silica is an ultra-fine, high-purity particle used as a reinforcing, thickening, abrasive, thixotropic, suspending or anti-caking agent in a wide variety of products for the automotive, construction, microelectronics, and consumer products industries. These products include adhesives, sealants, cosmetics, inks, toners, silicone rubber, coatings, polishing slurries and pharmaceuticals. Fumed alumina, also an ultra-fine, high-purity particle, is used as an abrasive, absorbent or barrier agent in a variety of products, such as inkjet media, lighting, coatings, cosmetics and polishing slurries.

Aerogel is a hydrophobic, silica-based particle with a high surface area that is used in a variety of thermal insulation and specialty chemical applications. In the building and construction industry, the product is used in insulative sprayable plasters and composite building products, as well as translucent skylight, window, wall and roof systems for insulating eco-dailylighting applications. In the specialty chemicals industry, the product is used to provide matte finishing, insulating and thickening properties for use in a variety of applications.

## Purification Solutions

The Company’s activated carbon products are used for the purification of water, air, food and beverages, pharmaceuticals and other liquids and gases, as either a colorant or a decoloring agent in the production of products for food and beverage applications and as a chemical carrier in slow release applications. In gas and air applications, one of the uses of activated carbon is for the removal of mercury in flue gas streams. In certain applications, used activated carbon can be reactivated for further use by removing the contaminants from the pores of the activated carbon product. In addition to activated carbon production and reactivation, the Company also provides activated carbon solutions through on-site equipment and services, including delivery systems for activated carbon injection in coal-fired utilities, mobile water filter units and carbon reactivation services.



## Specialty Fluids

The Specialty Fluids segment principally produces and markets cesium formate as a drilling and completion fluid for use primarily in high-pressure and high-temperature oil and gas well construction. The fluid is resistant to high temperatures, minimizes damage to producing reservoirs and is readily biodegradable in accordance with testing guidelines set by the Organization for Economic Cooperation and Development. The business also manufactures and sells fine cesium chemicals that are used in a wide range of applications, including catalysts and brazing fluxes.

Financial information by reportable segment is as follows:

<table><tr><td></td><td>Reinforcement Materials</td><td>Performance Chemicals</td><td>Purification Solutions</td><td>Specialty Fluids</td><td>Segment Total</td><td>Unallocated and Other(1), (3)</td><td>Consolidated Total</td></tr><tr><td></td><td></td><td></td><td colspan="5">(Dollars in millions)</td></tr><tr><td>Years Ended September 30</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2015</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues from external customers(2)</td><td>$ 1,507</td><td>$ 927</td><td>$ 296</td><td>$ 42</td><td>$ 2,772</td><td>$ 99</td><td>$ 2,871</td></tr><tr><td>Depreciation and amortization</td><td>83</td><td>54</td><td>45</td><td>2</td><td>184</td><td>(1)</td><td>183</td></tr><tr><td>Equity in earnings of affiliated companies</td><td>2</td><td>1</td><td>6</td><td>—</td><td>9</td><td>(5)</td><td>4</td></tr><tr><td>Income (loss) from continuing operations before taxes(3)</td><td>143</td><td>178</td><td>5</td><td>6</td><td>332</td><td>(709)</td><td>(377)</td></tr><tr><td>Assets(4)</td><td>1,220</td><td>625</td><td>789</td><td>119</td><td>2,753</td><td>322</td><td>3,075</td></tr><tr><td>Total expenditures for additions to long-lived assets(5)</td><td>44</td><td>29</td><td>48</td><td>16</td><td>137</td><td>4</td><td>141</td></tr><tr><td>2014</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues from external customers(2)</td><td>2,108</td><td>1,022</td><td>315</td><td>98</td><td>3,543</td><td>104</td><td>3,647</td></tr><tr><td>Depreciation and amortization</td><td>88</td><td>56</td><td>54</td><td>3</td><td>201</td><td>—</td><td>201</td></tr><tr><td>Equity in earnings of affiliated companies</td><td>(3)</td><td>1</td><td>6</td><td>—</td><td>4</td><td>(4)</td><td>—</td></tr><tr><td>Income (loss) from continuing operations before taxes(3)</td><td>259</td><td>168</td><td>(19)</td><td>39</td><td>447</td><td>(139)</td><td>308</td></tr><tr><td>Assets(4)</td><td>1,632</td><td>731</td><td>1,389</td><td>115</td><td>3,867</td><td>217</td><td>4,084</td></tr><tr><td>Total expenditures for additions to long-lived assets(5)</td><td>65</td><td>29</td><td>64</td><td>7</td><td>165</td><td>6</td><td>171</td></tr><tr><td>2013</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues from external customers(2)</td><td>1,931</td><td>989</td><td>328</td><td>101</td><td>3,349</td><td>107</td><td>3,456</td></tr><tr><td>Depreciation and amortization</td><td>82</td><td>56</td><td>54</td><td>2</td><td>194</td><td>(4)</td><td>190</td></tr><tr><td>Equity in earnings of affiliated companies</td><td>9</td><td>2</td><td>4</td><td>—</td><td>15</td><td>(4)</td><td>11</td></tr><tr><td>Income (loss) from continuing operations before taxes(3)</td><td>195</td><td>149</td><td>(4)</td><td>46</td><td>386</td><td>(176)</td><td>210</td></tr><tr><td>Assets(4)</td><td>1,523</td><td>752</td><td>1,388</td><td>110</td><td>3,773</td><td>460</td><td>4,233</td></tr><tr><td>Total expenditures for additions to long-lived assets(5)</td><td>172</td><td>46</td><td>38</td><td>5</td><td>261</td><td>3</td><td>264</td></tr></table>

(1) Unallocated and Other includes certain items and eliminations necessary to reflect management’s reporting of operating segment results. These items are reflective of the segment reporting presented to the CODM.

(2) Revenue from external customers that are categorized as Unallocated and Other reflects royalties, other operating revenues, external shipping and handling fees, the impact of unearned revenue, the removal of 100% of the sales of an equity method affiliate and discounting charges for certain Notes receivable. Details are provided in the table below.

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td>2014</td><td>2013</td><td></td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Royalties, other operating revenues, the impact of unearned revenue, the removal of 100% of the sales of an equity method affiliate and discounting charges for certain Notes receivable.</td><td>$ 9</td><td>$ (7)</td><td>$ 5</td><td></td></tr><tr><td>Shipping and handling fees.</td><td>90</td><td>111</td><td>102</td><td></td></tr><tr><td>Total</td><td>$ 99</td><td>$ 104</td><td>$ 107</td><td></td></tr></table>



(3) Income (loss) from continuing operations before taxes that are categorized as Unallocated and Other includes:

<table><tr><td rowspan="3"></td><td colspan="4">Years Ended September 30</td></tr><tr><td>2015</td><td colspan="2">2014</td><td>2013</td></tr><tr><td colspan="4">(Dollars in millions)</td></tr><tr><td>Interest expense</td><td>$</td><td>(53)</td><td>$</td><td>(62)</td></tr><tr><td>Total certain items, pre-tax \( ^{(a)} \)</td><td></td><td>(617)</td><td></td><td>(54)</td></tr><tr><td>Equity in earnings of affiliated companies, net of tax \( ^{(b)} \)</td><td></td><td>(4)</td><td>—</td><td>(11)</td></tr><tr><td>Unallocated corporate costs \( ^{(c)} \)</td><td></td><td>(46)</td><td>(54)</td><td>(48)</td></tr><tr><td>General unallocated expense \( ^{(d)} \)</td><td></td><td>11</td><td>(2)</td><td>(1)</td></tr><tr><td>Total</td><td>$</td><td>(709)</td><td>$</td><td>(176)</td></tr></table>

Certain items are items that management does not consider representative of operating segment results and they are, therefore, excluded from Segment EBIT. Certain items, pre-tax for fiscal 2015 include $562 million related to goodwill and long-lived asset impairment charges for the Purification Solutions business (refer to Note G), $21 million related to global restructuring activities (Refer to Note P), $5 million for acquisition and integration-related charges, $21 million related to employee benefit plan settlement and other charges (refer to note N), and $2 million related to foreign currency loss on revaluations, and $6 million related to an inventory reserve adjustment (refer to Note E). Certain items, pre-tax, for fiscal 2014 primarily include $29 million related to global restructuring activities, $7 million for acquisition and integration-related charges, $18 million for legal and environmental matters and reserves and $3 million of certain foreign currency gains recorded by foreign subsidiaries offset by a $29 million non-cash gain recognized on the Company's pre-existing investment in NHUMO as a result of the NHUMO transaction. Certain items, pre-tax, for fiscal 2013 primarily include $35 million related to global restructuring activities, $21 million for acquisition and integration-related charges (consisting of $10 million for certain other one-time integration costs and $11 million of additional charges related to acquisition accounting adjustments for the acquired inventory) and $1 million for legal and environmental matters and reserves offset by $3 million of certain foreign currency gains recorded by foreign subsidiaries.

Equity in earnings of affiliated companies, net of tax is included in Segment EBIT and is removed from Unallocated and other to reconcile to income (loss) from operations before taxes.

(c) Unallocated corporate costs are not controlled by the segments and primarily benefit corporate interests.

(d) General unallocated expense consists of gains (losses) arising from foreign currency transactions, net of other foreign currency risk management activities, the impact of accounting for certain inventory on a LIFO basis, the profit or loss related to the corporate adjustment for unearned revenue, and the impact of including the full operating results of an equity affiliate in Purification Solutions Segment EBIT.

(4) Unallocated and Other assets includes cash, marketable securities, cost investments, income taxes receivable, deferred taxes, headquarters' assets, and current and non-current assets held for sale.

(5) Expenditures for additions to long-lived assets include total equity and other investments (including available-for-sale securities) and property, plant and equipment.

## Geographic Information

Sales are attributed to the United States and to all foreign countries based on the location from which the sale originated. Revenues from external customers and long-lived assets attributable to an individual country, other than the United States, China and The Netherlands, were not material for disclosure.



Revenues from external customers and long-lived asset information by geographic area are summarized as follows:

<table><tr><td></td><td>United States</td><td>China</td><td>The Netherlands (Dollars in millions)</td><td>Other Foreign Countries</td><td>Consolidated Total</td></tr><tr><td>Years Ended September 30,</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2015</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues from external customers</td><td>$     705</td><td>$     548</td><td>$     176</td><td>$     1,442</td><td>$     2,871</td></tr><tr><td>Net property, plant and equipment</td><td>$     480</td><td>$     311</td><td>$     157</td><td>$     435</td><td>$     1,383</td></tr><tr><td>2014</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues from external customers</td><td>$     847</td><td>$     628</td><td>$     220</td><td>$     1,952</td><td>$     3,647</td></tr><tr><td>Net property, plant and equipment</td><td>$     496</td><td>$     355</td><td>$     197</td><td>$     533</td><td>$     1,581</td></tr><tr><td>2013</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues from external customers</td><td>$     818</td><td>$     558</td><td>$     224</td><td>$     1,856</td><td>$     3,456</td></tr><tr><td>Net property, plant and equipment</td><td>$     488</td><td>$     385</td><td>$     211</td><td>$     516</td><td>$     1,600</td></tr></table>

## Note W. Unaudited Quarterly Financial Information

Unaudited financial results by quarter for fiscal 2015 and 2014 are summarized below:

<table><tr><td rowspan="3"></td><td colspan="6">Quarter Ended</td></tr><tr><td rowspan="2">December</td><td colspan="2">March</td><td rowspan="2">June</td><td rowspan="2">September</td><td rowspan="2">Year</td></tr><tr><td colspan="4">(Dollars in millions, except per share amounts)</td></tr><tr><td>Fiscal 2015</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Consolidated Net Income</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net sales and other operating revenues</td><td>$     812</td><td>$     694</td><td>$     694</td><td>$     671</td><td>$     2,871</td><td></td></tr><tr><td>Gross profit</td><td>157</td><td>139</td><td>150</td><td>139</td><td>585</td><td></td></tr><tr><td>Purification Solutions long-lived assets impairment charge</td><td>—</td><td>—</td><td>209</td><td>1</td><td>210</td><td></td></tr><tr><td>Purification Solutions goodwill impairment charge</td><td>—</td><td>—</td><td>353</td><td>(1)</td><td>352</td><td></td></tr><tr><td>Income from discontinued operations, net of tax</td><td>—</td><td>—</td><td>1</td><td>1</td><td>2</td><td></td></tr><tr><td>Net income (loss)</td><td>49</td><td>27</td><td>(443)</td><td>41</td><td>(326)</td><td></td></tr><tr><td>Net income (loss) attributable to Cabot Corporation</td><td>45</td><td>26</td><td>(445)</td><td>40</td><td>(334)</td><td></td></tr><tr><td>Income per share—basic:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income (loss) from continuing operations</td><td>$     0.70</td><td>$     0.41</td><td>$      (7.05)</td><td>$     0.63</td><td>$      (5.29)</td><td></td></tr><tr><td>Income from discontinued operations</td><td>—</td><td>—</td><td>0.01</td><td>0.01</td><td>0.02</td><td></td></tr><tr><td>Net income (loss) attributable to Cabot Corporation</td><td>$     0.70</td><td>$     0.41</td><td>$      (7.04)</td><td>$     0.64</td><td>$      (5.27)</td><td></td></tr><tr><td>Income per share—diluted:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income (loss) from continuing operations</td><td>$     0.69</td><td>$     0.41</td><td>$      (7.05)</td><td>$     0.62</td><td>$      (5.29)</td><td></td></tr><tr><td>Income from discontinued operations</td><td>—</td><td>—</td><td>0.01</td><td>0.01</td><td>0.02</td><td></td></tr><tr><td>Net income (loss) attributable to Cabot Corporation</td><td>$     0.69</td><td>$     0.41</td><td>$      (7.04)</td><td>$     0.63</td><td>$      (5.27)</td><td></td></tr></table>



<table><tr><td rowspan="3"></td><td colspan="6">Quarter Ended</td></tr><tr><td rowspan="2">December</td><td>March</td><td>June</td><td>September</td><td>Year</td><td></td></tr><tr><td colspan="5">(Dollars in millions, except per share amounts)</td></tr><tr><td>Fiscal 2014</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Consolidated Net Income</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Net sales and other operating revenues</td><td>$     898</td><td>$     898</td><td>$     940</td><td>$     911</td><td>$     3,647</td><td></td></tr><tr><td>Gross profit</td><td>179</td><td>176</td><td>184</td><td>182</td><td>721</td><td></td></tr><tr><td>(Loss) income from discontinued operations, net of tax</td><td>(1)</td><td>—</td><td>(1)</td><td>4</td><td>2</td><td></td></tr><tr><td>Net income</td><td>86</td><td>39</td><td>57</td><td>36</td><td>218</td><td></td></tr><tr><td>Net income attributable to Cabot Corporation</td><td>80</td><td>36</td><td>52</td><td>31</td><td>199</td><td></td></tr><tr><td>Income per share—basic:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income from continuing operations</td><td>$     1.25</td><td>$     0.56</td><td>$     0.80</td><td>$     0.43</td><td>$     3.04</td><td></td></tr><tr><td>Income from discontinued operations</td><td>(0.01)</td><td>(0.01)</td><td>(0.01)</td><td>0.05</td><td>0.02</td><td></td></tr><tr><td>Net income attributable to Cabot Corporation</td><td>$     1.24</td><td>$     0.55</td><td>$     0.79</td><td>$     0.48</td><td>$     3.06</td><td></td></tr><tr><td>Income per share—diluted:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income from continuing operations</td><td>$     1.24</td><td>$     0.55</td><td>$     0.79</td><td>$     0.43</td><td>$     3.01</td><td></td></tr><tr><td>(Loss) income from discontinued operations</td><td>(0.01)</td><td>(0.01)</td><td>(0.01)</td><td>0.05</td><td>0.02</td><td></td></tr><tr><td>Net income attributable to Cabot Corporation</td><td>$     1.23</td><td>$     0.54</td><td>$     0.78</td><td>$     0.48</td><td>$     3.03</td><td></td></tr></table>



# REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Cabot Corporation
Boston, Massachusetts

We have audited the accompanying consolidated balance sheets of Cabot Corporation and subsidiaries (the "Company") as of September 30, 2015 and 2014, and the related consolidated statements of operations, comprehensive (loss) income, changes in stockholders' equity and cash flows for each of the three years in the period ended September 30, 2015. These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of Cabot Corporation and subsidiaries as of September 30, 2015 and 2014, and the results of their operations and their cash flows for each of the three years in the period ended September 30, 2015, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of September 30, 2015, based on the criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated November 25, 2015 expressed an unqualified opinion on the Company’s internal control over financial reporting.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

November 25, 2015



# REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Cabot Corporation
Boston, Massachusetts

We have audited the internal control over financial reporting of Cabot Corporation and subsidiaries (the "Company") as of September 30, 2015, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of September 30, 2015, based on the criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements as of and for the year ended September 30, 2015 of the Company and our report dated November 25, 2015 expressed an unqualified opinion on those financial statements.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

November 25, 2015



## PART II

## Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

## Item 9A. Controls and Procedures

## Disclosure Controls and Procedures

Cabot carried out an evaluation, under the supervision and with the participation of its management, including the Company’s President and Chief Executive Officer and its Executive Vice President and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures pursuant to Rule 13a-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of September 30, 2015. Based on that evaluation, Cabot’s President and Chief Executive Officer and its Executive Vice President and Chief Financial Officer concluded that the Company’s disclosure controls and procedures are effective with respect to the recording, processing, summarizing and reporting, within the time periods specified in the Securities and Exchange Commission’s rules and forms, of information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act and such information is accumulated and communicated to management to allow timely decisions regarding required disclosure.

## Management’s Annual Report on Internal Control Over Financial Reporting

Cabot’s management is responsible for establishing and maintaining adequate internal control over financial reporting for Cabot. Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act as a process designed by, or under the supervision of, a company’s principal executive and principal financial officers, and effected by the company’s board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles and includes those policies and procedures that:

- Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the company;

- Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and

- Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of the effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with policies or procedures may deteriorate.

Cabot’s management assessed the effectiveness of Cabot’s internal control over financial reporting as of September 30, 2015 based on the framework established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this assessment, Cabot’s management concluded that Cabot’s internal control over financial reporting was effective as of September 30, 2015.

Cabot’s internal control over financial reporting as of September 30, 2015 has been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report above.

## Changes in Internal Control Over Financial Reporting

There were no changes in the Company’s internal control over financial reporting that occurred during the Company’s fiscal quarter ending September 30, 2015 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.



## Item 9B. Other Information

Following the issuance of the Company’s earnings release on November 2, 2015 for the fourth quarter and fiscal year ended September 30, 2015, the Company made certain adjustments to the recorded amounts for taxes and value added tax credits. The adjustments, which were identified in connection with the Company’s fiscal year end procedures, are reflected in the consolidated financial statements included in this annual report on Form 10-K. If these adjustments had been reflected in the results the Company reported in its earnings release, the Company would have reported diluted earnings per share for the fourth quarter ended September 30, 2015 of $0.63 compared to $0.68 and diluted earnings per share loss for the fiscal year ended September 30, 2015 of $5.27 compared to $5.23. The adjustment also lowered adjusted earnings per share for the fourth quarter and fiscal year ended September 30, 2015 by $0.04 from the amounts reported in the earnings release. The adjustment primarily impacted the results of Reinforcement Materials.



## PART III

## Item 10. Directors, Executive Officers and Corporate Governance

Certain information regarding our executive officers is included at the end of Part I of this annual report under the heading “Executive Officers of the Registrant.”

Cabot has adopted a Code of Business Ethics that applies to all of the Company’s employees and directors, including the Chief Executive Officer, the Chief Financial Officer, the Controller and other senior financial officers. The Code of Business Ethics is posted on our website, www.cabotcorp.com (under the “About Cabot” caption under “Company”). We intend to satisfy the disclosure requirement regarding any amendment to, or waiver of, a provision of the Code of Business Ethics applicable to the Chief Executive Officer, the Chief Financial Officer, the Controller or other senior financial officers by posting such information on our website.

The other information required by this item will be included in our Proxy Statement for the 2016 Annual Meeting of Stockholders (“Proxy Statement”) and is herein incorporated by reference.

## Item 11. Executive Compensation

The information required by this item will be included in our Proxy Statement and is incorporated herein by reference.

## Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information relating to security ownership of certain beneficial owners of our common stock, and information relating to the security ownership of our management required by this item will be included in our Proxy Statement and is incorporated herein by reference

The following table provides information as of September 30, 2015 about: (i) the number of shares of common stock that may be issued upon exercise of outstanding options and vesting of restricted stock units; (ii) the weighted-average exercise price of outstanding options; and (iii) the number of shares of common stock available for future issuance under our active plans: the 2009 Long-Term Incentive Plan and the 2015 Directors' Stock Compensation Plan. All of our equity compensation plans have been approved by our stockholders.

<table><tr><td>Plan category</td><td>Number of securities to be issued upon exercise of outstanding options, warrants and rights (a) (1)</td><td>Weighted-average exercise price of outstanding option, warrants and rights (b) (2)</td><td>Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) (c) (3)</td></tr><tr><td>Equity compensation plans approved by security holders</td><td>2,320,862</td><td>33.91</td><td>3,294,265</td></tr><tr><td>Equity compensation plans not approved by security holders</td><td>N/A</td><td>N/A</td><td>N/A</td></tr></table>

(1) Includes (i) 1,510,126 shares issuable upon exercise of outstanding stock options, (ii) 490,336 shares issuable upon vesting of time-based restricted stock units, (iii) 92,055 shares issuable upon vesting of performance-based restricted stock units based upon the achievement of the annual financial performance metrics for the three years within the three-year performance period of the fiscal 2013 awards, the first two years within the three-year performance period of the fiscal 2014 awards, and the first year within the three-year performance period of the fiscal 2015 awards; and (iv) 228,345 shares issuable upon vesting of the performance-based stock units attributable to year three of the 2014 awards and years two and three of the 2015 awards, assuming Cabot performs at the maximum performance level in each of those years. If, instead, Cabot performs at the target level of performance in those years, a total of 152,230 shares would be issuable for year three of the 2014 awards and years two and three of the 2015 awards.

(2) The weighted-average exercise price includes all outstanding stock options but does not include restricted stock units which do not have an exercise price.

(3) Of these shares, (i) 2,944,265 shares remain available for future issuance under our 2009 Long-Term Incentive Plan, and (ii) 350,000 remain available for future issuance under our 2015 Directors' Stock Compensation Plan.

The other information required by this item will be included in our Proxy Statement and is incorporated herein by reference.

## Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by this item will be included in our Proxy Statement and is incorporated herein by reference.



## Item 14. Principal Accounting Fees and Services

The information required by this item will be included in our Proxy Statement and is incorporated herein by reference.

## PART IV

## Item 15. Exhibits, Financial Statement Schedules

(a) Financial Statements. See “Index to Financial Statements” under Item 8 on page 42 of this Form 10-K.

(b) Exhibits. (Certain exhibits not included in copies of the Form 10-K sent to stockholders.)

The exhibit numbers in the following list correspond to the numbers assigned to such exhibits in the Exhibit Table of Item 601 of Regulation S-K. Cabot will furnish to any stockholder, upon written request, any exhibit listed below, upon payment by such stockholder of the Company’s reasonable expenses in furnishing such exhibit.

<table><tr><td>Exhibit Number</td><td>Description</td></tr><tr><td>3(a)</td><td>Restated Certificate of Incorporation of Cabot Corporation effective January 9, 2009 (incorporated herein by reference to Exhibit 3.1 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2008, file reference 1-5667, filed with the SEC on February 9, 2009).</td></tr><tr><td>3(b)</td><td>The By-laws of Cabot Corporation as amended September 9, 2011 (incorporated herein by reference to Exhibit 3(b) of Cabot&#x27;s Annual Report on Form 10-K for the year ended September 30, 2011, file reference 1-5667, filed with the SEC on November 29, 2011).</td></tr><tr><td>4(a)(i)</td><td>Indenture, dated as of December 1, 1987, between Cabot Corporation and The First National Bank of Boston, Trustee (the &quot;Indenture&quot;) (incorporated herein by reference to Exhibit 4 of Amendment No. 1 to Cabot&#x27;s Registration Statement on Form S-3, Registration Statement No. 33-18883, filed with the SEC on December 10, 1987).</td></tr><tr><td>4(a)(ii)</td><td>First Supplemental Indenture, dated as of June 17, 1992, to the Indenture (incorporated herein by reference to Exhibit 4.3 of Cabot&#x27;s Registration Statement on Form S-3, Registration Statement No. 33-48686, filed with the SEC on June 18, 1992).</td></tr><tr><td>4(a)(iii)</td><td>Second Supplemental Indenture, dated as of January 31, 1997, between Cabot Corporation and State Street Bank and Trust Company, Trustee (incorporated herein by reference to Exhibit 4 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 1996, file reference 1-5667, filed with the SEC on February 14, 1997).</td></tr><tr><td>4(a)(iv)</td><td>Third Supplemental Indenture, dated as of November 20, 1998, between Cabot Corporation and State Street Bank and Trust Company, Trustee (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Current Report on Form 8-K, dated November 20, 1998, file reference 1-5667, filed with the SEC on November 20, 1998).</td></tr><tr><td>4(a)(v)</td><td>Indenture, dated as of September 21, 2009, between Cabot Corporation and U.S. Bank National Association, as Trustee (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Registration Statement on Form S-3 ASR, Registration Statement No. 333-162021, filed with the SEC on September 21, 2009).</td></tr><tr><td>4(a)(vi)</td><td>First Supplemental Indenture, dated as of September 24, 2009, between Cabot Corporation and U.S. Bank National Association, as Trustee (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Current Report on Form 8-K dated September 24, 2009, file reference 1-5667, filed with the SEC on September 24, 2009).</td></tr><tr><td>4(a)(vii)</td><td>Second Supplemental Indenture, dated as of July 12, 2012 between Cabot Corporation, as Issuer, and U.S. Bank National Association, as Trustee, including the form of Global Note attached as Annex A thereto, supplementing the Indenture dated as of September 21, 2009 (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Current Report on Form 8-K dated July 9, 2012, file reference 1-5667, filed with the SEC on July 12, 2012).</td></tr><tr><td>10(a)†</td><td>Credit Agreement, dated October 23, 2015, among Cabot Corporation, JPMorgan Chase Bank, N.A., J.P. Morgan Securities LLC, Citigroup Global Markets Inc., Citibank, N.A., Bank of America, N.A., Mizuho Bank, Ltd., TD Bank, N.A., and Wells Fargo Bank, National Association, and the other lenders party thereto.</td></tr><tr><td>10(b)(i)*</td><td>2009 Long-Term Incentive Plan (incorporated herein by reference to Appendix B of Cabot&#x27;s Proxy Statement on Schedule 14A relating to the 2012 Annual Meeting of Stockholders, file reference 1-5667, filed with the SEC on January 30, 2012).</td></tr><tr><td>10(b)(ii)*</td><td>2015 Directors&#x27; Stock Compensation Plan (incorporated herein by reference to Appendix B of Cabot&#x27;s Proxy Statement on Schedule 14A relating to the 2015 Annual Meeting of Stockholders, file reference 1-5667, filed with the SEC on January 28, 2015).</td></tr></table>



<table><tr><td>Exhibit Number</td><td>Description</td></tr><tr><td>10(b)(iii)*</td><td>Cabot Corporation Short-Term Incentive Compensation Plan (incorporated herein by reference to Appendix A of Cabot&#x27;s Proxy Statement on Schedule 14A relating to the 2011 Annual Meeting of Stockholders, file reference 1-5667, filed with the SEC on January 28, 2011).</td></tr><tr><td>10(c)*†</td><td>Summary of Compensation for Non-Employee Directors.</td></tr><tr><td>10(d)*</td><td>Cabot Corporation Amended and Restated Senior Management Severance Protection Plan, dated March 9, 2012 (incorporated herein by reference to Exhibit 10.5 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2012, file reference 1-5667, filed with the SEC on May 7, 2012).</td></tr><tr><td>10(e)*</td><td>Form of Restricted Stock Unit Award Certificate under the Cabot Corporation 2009 Long-Term Incentive Plan (incorporated herein by reference to Exhibit 10(i)(i) of Cabot&#x27;s Annual Report on Form 10-K for the period ended September 30, 2013, file reference 1-5667, filed with the SEC on November 27, 2013).</td></tr><tr><td>10(f)*</td><td>Form of Non-Qualified Stock Option Award Agreement under the Cabot Corporation 2009 Long-Term Incentive Plan (incorporated herein by reference to Exhibit 10(i)(ii) of Cabot&#x27;s Annual Report on Form 10-K for the period ended September 30, 2013, file reference 1-5667, filed with the SEC on November 27, 2013).</td></tr><tr><td>10(g)*</td><td>Cabot Corporation Deferred Compensation and Supplemental Retirement Plan, amended and restated January 1, 2014 (incorporated herein by reference to Exhibit 10.1 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2013, file reference 1-5667, filed with the SEC on February 6, 2014).</td></tr><tr><td>10(h)*</td><td>Cabot Corporation Non-Employee Directors&#x27; Deferral Plan, amended and restated January 1, 2014 (incorporated herein by reference to Exhibit 10.2 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2013, file reference 1-5667, filed with the SEC on February 6, 2014).</td></tr><tr><td>10(i)*</td><td>The Separation Agreement between Cabot Corporation and David A. Miller dated November 28, 2014 (incorporated herein by reference to Exhibit 10.1 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2014, file reference 1-5667, filed with the SEC on February 5, 2015).</td></tr><tr><td>10(j)*</td><td>Employment Agreement between Nicholas Stewart Cross and Cabot Switzerland GmbH effective April 1, 2010, as modified by the Assignment Letter between Nicholas Cross and Cabot Corporation effective May 15, 2015 (incorporated herein by reference to Exhibit 10.1 of Cabot Corporation&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2015, file reference 1-5667, filed with the SEC on May 7, 2015).</td></tr><tr><td>10(k)</td><td>Asset Transfer Agreement, dated as of June 13, 1995, among Cabot Safety Corporation, Cabot Canada Ltd., Cabot Safety Limited, Cabot Corporation, Cabot Safety Holdings Corporation and Cabot Safety Acquisition Corporation (incorporated herein by reference to Exhibit 2(a) of Cabot Corporation&#x27;s Current Report on Form 8-K dated July 11, 1995, file reference 1-5667, filed with the SEC on July 26, 1995).</td></tr><tr><td>21†</td><td>Subsidiaries of Cabot Corporation.</td></tr><tr><td>23†</td><td>Consent of Deloitte &amp; Touche LLP.</td></tr><tr><td>31(i)†</td><td>Certification of Principal Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act.</td></tr><tr><td>31(ii)†</td><td>Certification of Principal Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act.</td></tr><tr><td>32††</td><td>Certifications of the Principal Executive Officer and Principal Financial Officer pursuant to 18 U.S.C. Section 1350.</td></tr><tr><td>101.INS†</td><td>XBRL Instance Document.</td></tr><tr><td>101.SCH†</td><td>XBRL Taxonomy Extension Schema Document.</td></tr><tr><td>101.CAL†</td><td>XBRL Taxonomy Calculation Linkbase Document.</td></tr><tr><td>101.DEF†</td><td>XBRL Taxonomy Extension Definition Linkbase Document.</td></tr><tr><td>101.LAB†</td><td>XBRL Taxonomy Label Linkbase Document.</td></tr><tr><td>101.PRE†</td><td>XBRL Taxonomy Presentation Linkbase Document.</td></tr><tr><td>*</td><td>Management contract or compensatory plan or arrangement.</td></tr><tr><td>†</td><td>Filed herewith.</td></tr><tr><td>††</td><td>Furnished herewith.</td></tr></table>



Attached as Exhibit 101 to the report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Operations for the years ended September 30, 2015, 2014, 2013; (ii) Consolidated Statements of Comprehensive Income for years ended September 30, 2015, 2014, or 2013. (iii) the Consolidated Balance Sheets at September 30, 2015 and September 30, 2014; (iv) the Consolidated Statement of Cash flows for the years ended September 30, 2015, 2014 and 2013; (v) the Consolidated Statement of Changes in Stockholders' Equity September 30, 2015, 2014 and 2013; and (vi) Notes to the Consolidated Financial Statements, September 30, 2015.

(c) Schedules. The Schedules have been omitted because they are not required or are not applicable, or the required information is shown in the financial statements or notes thereto.



## SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) 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.

## CABOT CORPORATION

<table><tr><td>BY:</td><td>/s/</td><td>PATRICK M. PREVOST</td></tr><tr><td></td><td></td><td>Patrick M. Prevost</td></tr><tr><td></td><td></td><td>President and Chief Executive Officer</td></tr></table>

Date: November 25, 2015

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

<table><tr><td>Signatures</td><td>Title</td><td>Date</td></tr><tr><td>/s/ PATRICK M. PREVOST</td><td>Director, President and Chief Executive Officer</td><td>November 25, 2015</td></tr><tr><td>Patrick M. Prevost</td><td>Executive Vice President and Chief Financial Officer (principal financial officer)</td><td>November 25, 2015</td></tr><tr><td>/s/ EDUARDO E. CORDEIRO</td><td>Vice President and Controller (principal accounting officer)</td><td>November 25, 2015</td></tr><tr><td>Eduardo E. Cordeiro</td><td>Director, Non-Executive Chairman of the Board</td><td>November 25, 2015</td></tr><tr><td>/s/ JAMES P. KELLY</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>James P. Kelly</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ JOHN F. O&#x27;BRIEN</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>John F. O&#x27;Brien</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ JUAN ENRIQUEZ</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Juan Enriquez</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ WILLIAM C. KIRBY</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>William C. Kirby</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ RODERICK C.G. MACLEOD</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Roderick C.G. MacLeod</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ HENRY F. MCCANCE</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Henry F. McCance</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ JOHN K. McGILLICUDDY</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>John K. McGillicuddy</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ SUE H. RATAJ</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Sue H. Rataj</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ RONALDO H. SCHMITZ</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Ronaldo H. Schmitz</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ LYDIA W. THOMAS</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Lydia W. Thomas</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ MATTHIAS L. WOLFGRUBER</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Matthias L. Wolfgruber</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>/s/ MARK S. WRIGHTON</td><td>Director</td><td>November 25, 2015</td></tr><tr><td>Mark S. Wrighton</td><td>Director</td><td>November 25, 2015</td></tr></table>



EXHIBIT INDEX

<table><tr><td>Exhibit Number</td><td>Description</td></tr><tr><td>3(a)</td><td>Restated Certificate of Incorporation of Cabot Corporation effective January 9, 2009 (incorporated herein by reference to Exhibit 3.1 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2008, file reference 1-5667, filed with the SEC on February 9, 2009).</td></tr><tr><td>3(b)</td><td>The By-laws of Cabot Corporation as amended September 9, 2011 (incorporated herein by reference to Exhibit 3(b) of Cabot&#x27;s Annual Report on Form 10-K for the year ended September 30, 2011, file reference 1-5667, filed with the SEC on November 29, 2011).</td></tr><tr><td>4(a)(i)</td><td>Indenture, dated as of December 1, 1987, between Cabot Corporation and The First National Bank of Boston, Trustee (the &quot;Indenture&quot;) (incorporated herein by reference to Exhibit 4 of Amendment No. 1 to Cabot&#x27;s Registration Statement on Form S-3, Registration Statement No. 33-18883, filed with the SEC on December 10, 1987).</td></tr><tr><td>4(a)(ii)</td><td>First Supplemental Indenture, dated as of June 17, 1992, to the Indenture (incorporated herein by reference to Exhibit 4.3 of Cabot&#x27;s Registration Statement on Form S-3, Registration Statement No. 33-48686, filed with the SEC on June 18, 1992).</td></tr><tr><td>4(a)(iii)</td><td>Second Supplemental Indenture, dated as of January 31, 1997, between Cabot Corporation and State Street Bank and Trust Company, Trustee (incorporated herein by reference to Exhibit 4 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 1996, file reference 1-5667, filed with the SEC on February 14, 1997).</td></tr><tr><td>4(a)(iv)</td><td>Third Supplemental Indenture, dated as of November 20, 1998, between Cabot Corporation and State Street Bank and Trust Company, Trustee (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Current Report on Form 8-K, dated November 20, 1998, file reference 1-5667, filed with the SEC on November 20, 1998).</td></tr><tr><td>4(a)(v)</td><td>Indenture, dated as of September 21, 2009, between Cabot Corporation and U.S. Bank National Association, as Trustee (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Registration Statement on Form S-3 ASR, Registration Statement No. 333-162021, filed with the SEC on September 21, 2009).</td></tr><tr><td>4(a)(vi)</td><td>First Supplemental Indenture, dated as of September 24, 2009, between Cabot Corporation and U.S. Bank National Association, as Trustee (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Current Report on Form 8-K dated September 24, 2009, file reference 1-5667, filed with the SEC on September 24, 2009).</td></tr><tr><td>4(a)(vii)</td><td>Second Supplemental Indenture, dated as of July 12, 2012 between Cabot Corporation, as Issuer, and U.S. Bank National Association, as Trustee, including the form of Global Note attached as Annex A thereto, supplementing the Indenture dated as of September 21, 2009 (incorporated herein by reference to Exhibit 4.1 of Cabot&#x27;s Current Report on Form 8-K dated July 9, 2012, file reference 1-5667, filed with the SEC on July 12, 2012).</td></tr><tr><td>10(a)†</td><td>Credit Agreement, dated October 23, 2015, among Cabot Corporation, JPMorgan Chase Bank, N.A., J.P. Morgan Securities LLC, Citigroup Global Markets Inc., Citibank, N.A., Bank of America, N.A., Mizuho Bank, Ltd., TD Bank, N.A., and Wells Fargo Bank, National Association, and the other lenders party thereto.</td></tr><tr><td>10(b)(i)*</td><td>2009 Long-Term Incentive Plan (incorporated herein by reference to Appendix B of Cabot&#x27;s Proxy Statement on Schedule 14A relating to the 2012 Annual Meeting of Stockholders, file reference 1-5667, filed with the SEC on January 30, 2012).</td></tr><tr><td>10(b)(ii)*</td><td>2015 Directors&#x27; Stock Compensation Plan (incorporated herein by reference to Appendix B of Cabot&#x27;s Proxy Statement on Schedule 14A relating to the 2015 Annual Meeting of Stockholders, file reference 1-5667, filed with the SEC on January 28, 2015).</td></tr><tr><td>10(b)(iii)*</td><td>Cabot Corporation Short-Term Incentive Compensation Plan (incorporated herein by reference to Appendix A of Cabot&#x27;s Proxy Statement on Schedule 14A relating to the 2011 Annual Meeting of Stockholders, file reference 1-5667, filed with the SEC on January 28, 2011).</td></tr><tr><td>10(c)*†</td><td>Summary of Compensation for Non-Employee Directors.</td></tr><tr><td>10(d)*</td><td>Cabot Corporation Amended and Restated Senior Management Severance Protection Plan, dated March 9, 2012 (incorporated herein by reference to Exhibit 10.5 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2012, file reference 1-5667, filed with the SEC on May 7, 2012).</td></tr></table>



<table><tr><td>Exhibit Number</td><td>Description</td></tr><tr><td>10(e)*</td><td>Form of Restricted Stock Unit Award Certificate under the Cabot Corporation 2009 Long-Term Incentive Plan (incorporated herein by reference to Exhibit 10(i)(i) of Cabot&#x27;s Annual Report on Form 10-K for the period ended September 30, 2013, file reference 1-5667, filed with the SEC on November 27, 2013).</td></tr><tr><td>10(f)*</td><td>Form of Non-Qualified Stock Option Award Agreement under the Cabot Corporation 2009 Long-Term Incentive Plan (incorporated herein by reference to Exhibit 10(i)(ii) of Cabot&#x27;s Annual Report on Form 10-K for the period ended September 30, 2013, file reference 1-5667, filed with the SEC on November 27, 2013).</td></tr><tr><td>10(g)*</td><td>Cabot Corporation Deferred Compensation and Supplemental Retirement Plan, amended and restated January 1, 2014 (incorporated herein by reference to Exhibit 10.1 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2013, file reference 1-5667, filed with the SEC on February 6, 2014).</td></tr><tr><td>10(h)*</td><td>Cabot Corporation Non-Employee Directors&#x27; Deferral Plan, amended and restated January 1, 2014 (incorporated herein by reference to Exhibit 10.2 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2013, file reference 1-5667, filed with the SEC on February 6, 2014).</td></tr><tr><td>10(i)*</td><td>The Separation Agreement between Cabot Corporation and David A. Miller dated November 28, 2014 (incorporated herein by reference to Exhibit 10.1 of Cabot&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2014, file reference 1-5667, filed with the SEC on February 5, 2015).</td></tr><tr><td>10(j)*</td><td>Employment Agreement between Nicholas Stewart Cross and Cabot Switzerland GmbH effective April 1, 2010, as modified by the Assignment Letter between Nicholas Cross and Cabot Corporation effective May 15, 2015 (incorporated herein by reference to Exhibit 10.1 of Cabot Corporation&#x27;s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2015, file reference 1-5667, filed with the SEC on May 7, 2015).</td></tr><tr><td>10(k)</td><td>Asset Transfer Agreement, dated as of June 13, 1995, among Cabot Safety Corporation, Cabot Canada Ltd., Cabot Safety Limited, Cabot Corporation, Cabot Safety Holdings Corporation and Cabot Safety Acquisition Corporation (incorporated herein by reference to Exhibit 2(a) of Cabot Corporation&#x27;s Current Report on Form 8-K dated July 11, 1995, file reference 1-5667, filed with the SEC on July 26, 1995).</td></tr><tr><td>21†</td><td>Subsidiaries of Cabot Corporation.</td></tr><tr><td>23†</td><td>Consent of Deloitte &amp; Touche LLP.</td></tr><tr><td>31(i)†</td><td>Certification of Principal Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act.</td></tr><tr><td>31(ii)†</td><td>Certification of Principal Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act.</td></tr><tr><td>32††</td><td>Certifications of the Principal Executive Officer and Principal Financial Officer pursuant to 18 U.S.C. Section 1350.</td></tr><tr><td>101.INS†</td><td>XBRL Instance Document.</td></tr><tr><td>101.SCH†</td><td>XBRL Taxonomy Extension Schema Document.</td></tr><tr><td>101.CAL†</td><td>XBRL Taxonomy Calculation Linkbase Document.</td></tr><tr><td>101.DEF†</td><td>XBRL Taxonomy Extension Definition Linkbase Document.</td></tr><tr><td>101.LAB†</td><td>XBRL Taxonomy Label Linkbase Document.</td></tr><tr><td>101.PRE†</td><td>XBRL Taxonomy Presentation Linkbase Document.</td></tr><tr><td>*</td><td>Management contract or compensatory plan or arrangement.</td></tr><tr><td>†</td><td>Filed herewith.</td></tr><tr><td>††</td><td>Furnished herewith.</td></tr><tr><td></td><td>Attached as Exhibit 101 to the report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Operations for the years ended September 30, 2015, 2014, 2013; (ii) Consolidated Statements of Comprehensive Income for years ended September 30, 2015, 2014, or 2013. (iii) the Consolidated Balance Sheets at September 30, 2015 and September 30, 2014; (iv) the Consolidated Statement of Cash flows for the years ended September 30, 2015, 2014 and 2013; (v) the Consolidated Statement of Changes in Stockholders&#x27; Equity September 30, 2015, 2014 and 2013; and (vi) Notes to the Consolidated Financial Statements, September 30, 2015.</td></tr><tr><td>(c)</td><td>Schedules. The Schedules have been omitted because they are not required or are not applicable, or the required information is shown in the financial statements or notes thereto.</td></tr></table>



# Principal Executive Officer Certification

I, Patrick M. Prevost, certify that:

1. I have reviewed this annual report on Form 10-K of Cabot Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 25, 2015

/s/ PATRICK M. PREVOST

Patrick M. Prevost

President and

Chief Executive Officer



# Principal Financial Officer Certification

I, Eduardo E. Cordeiro, certify that:

1. I have reviewed this annual report on Form 10-K of Cabot Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 25, 2015

/s/ EDUARDO E. CORDEIRO

Eduardo E. Cordeiro
Executive Vice President and
Chief Financial Officer



# Certifications Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the filing of the Annual Report on Form 10-K for the year ended September 30, 2015 (the "Report") by Cabot Corporation (the "Company"), each of the undersigned hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

1. The Report fully complies with the requirements of section 13 (a) or 15 (d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

November 25, 2015

November 25, 2015

/s/ PATRICK M. PREVOST

Patrick M. Prevost

President and

Chief Executive Officer

/s/ EDUARDO E. CORDEIRO

Eduardo E. Cordeiro

Executive Vice President and

Chief Financial Officer









## Corporate Headquarters

Cabot Corporation
Two Seaport Lane, Suite 1300
Boston, MA 02210-2019
617 345 0100

## Investor Relations

Investor inquiries are welcome and individuals are invited to contact us through our investor website at investor.cabot-corp.com or by telephone at 617 342 6090.

## Stock Listing

Cabot Corporation common stock is listed on the New York Stock Exchange under the symbol CBT.

## Annual Meeting

The Annual Meeting of Stockholders will be held on Thursday, March 10, 2016 at 4:00 p.m. ET, at the company's corporate headquarters at Two Seaport Lane, Suite 1300, Boston, Massachusetts. All stockholders are invited to attend.

## Stock Transfer Agent and Registrar

Registered shareholders may contact the transfer agent by internet or by phone for information or assistance with receiving proxy materials electronically by internet, direct deposit of dividend payments, dividend check replacements, account history, lost stock certificates, taxable income or to report address changes. The transfer agent provides telephone assistance Monday through Friday, 9:00 a.m. to 5:00 p.m. ET. Extended service is available 24 hours a day, seven days a week to callers with touch-tone telephones through the transfer agent's Interactive Voice Response System.

Please mention Cabot Corporation, your name as printed on your stock certificates or account, your Social Security number, if applicable, and your address and telephone number in all correspondence with the transfer agent.

Computershare Trust Company, N.A.
c/o Computershare Investor Services
P.O. Box 30170
College Station, TX 77842-3170

Overnight correspondence should be sent to:
Computershare
211 Quality Circle, Suite 210
College Station, TX 77845

Stockholder Inquiries:
781 575 3170 or 800 730 4001

For the hearing impaired: 800 952 9245 (TTY/TDD)

Stockholder Website: computershare.com/investor
Click on "Contact Us" link at the bottom of the webpage for online stockholder inquiries.



## CABOT