0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

GHG Emissions

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

GHG Emissions

0.6

Tronox Alkali believes in the importance of addressing our economic, environmental and social impacts. We hold ourselves accountable for creating value for all stakeholders, especially our customers, employees and community neighbors. Through a partnership philosophy, we seek to foster collaboration, communication and mutual respect so that we can achieve shared goals. We integrate sustainability into every aspect of our business, from innovation and strategy to operating practices.

Safety, innovation, quality and reliability are the foundation of Tronox Alkali’s sustainability strategy. These essential elements allow us to deliver value while operating safely and efficiently for the well-being of ourselves and our environment.

E n e r g y I n t e n s i t y

2012 2013 2014

mmbtu/Tonne of product, normalized to a 2012 baseline

G H G I n t e n s i t y

2014 GHG Intensity increased compared to 2013. This was driven by updates to CO2e emission factors to maintain consistency with public reporting standards, as well as a shift in fuel mix with improved coal boiler reliability.

2012 2013 2014

Tonnes/Tonne of product, normalized to a 2012 baseline

W at e r I n t e n s i t y

2014 Water Intensity increased compared to 2013. This was driven by high rainfall which is included as a process water input, along with an increase fill of our Granger solution mine.

2012 2013 2014

m3/Tonne of product, normalized to a 2012 baseline

W a s t e I n t e n s i t y

In 2014, Total Waste Intensity decreased significantly compared to 2013. This was driven largely by reduced scrap metal generation compared to previous years.

2012 2013 2014

Kg/Tonne product, normalized to a 2012 baseline

Waste

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

0.60.985

0.990

0.995

1.000

1.005

1.010

Waste

As Tronox Alkali looks to the future, we are confident that our shared values will allow us to strengthen and continue our commitment to the Essential Elements of sustainability.

S o l u t i o n M i n i n g D i r e c t i o n a l D r i l l i n g

ESSENTIALELEMENTS

C o n t a i n m e n t P o n d

P R O D U C T I O N

O L D D R Y M I N E W O R K I N G S

R E C Y C L E D W A T E R

S T R E A M

L E F T O V E RT R O N A O R E

H Y D R A U L I CS Y S T E M

R O O F S H I E L D S

A Brief History of Tronox Alkali

W E L L B O R EWater runs through old mine workings and picks up leftover trona ore.

Water is pumped back to the surface and collected trona ore is separated.

Recycled water is injected into old mine workings.

T h e P r o c e s s

The trona bed that Tronox Alkali mines is located 1,600 feet below the surface and averages about 10 feet thick.

S u s t a i n a b i l i t y A d v a n t a g e

As a secondary recovery process, solution mining substantially improves recovery of trona ore.

L o n g w a l l M i n i n g

Tronox Alkali has long been on the leading edge of advancements in extraction technology which maximize trona recovery. We led the way in developing improvements starting with the bore miner, which replaced the former “drill and blast” method. In 1980, adopting technology from the coal industry, we began operating the first successful trona longwall miner, which offers a distinct resource advantage by allowing removal of 35% more trona ore compared to traditional bore mining.

S u s t a i n a b i l i t y A d v a n t a g e

Longwall mining recovers approximately 35% more mineral than conventional room and pillar mining.

S u s t a i n a b i l i t y A d v a n t a g e

Tronox Alkali continues to lead the industry, piloting the first directional drilled solution mining wells in the Green River basin.

1980

Directional drilling allows solution mining in areas that cannot be mined due to depth or thickness, minimizing environmental impact.

One PlanTronox Alkali’s safety excellence framework has three guiding principles:

E V E R Y O N E I S I N V O L V E D A N D E N G A G E D – I N R E D U C I N G I N J U R I E S

E A C H O F U S W I L L R E - T H I N K R I S K I N E V E R Y T H I N G W E D O – T O L O W E R O U R R I S K T O L E R A N C E

W E W I L L I N C R E A S E T R A I N I N G A N D D E V E L O P M E N T –

T O C O N S I S T E N T L Y A C H I E V E B E S T P R A C T I C E S

Plantings to Benefit Sage-GrouseTo stabilize the population of Greater Sage-grouse, we planted sagebrush seedlings to reseed an area outside our fenced facility.

Tronox Alkali Resource Management

2014

We first piloted solution mining through drill and fracture techniques in the early 1950’s with limited success due to the low selectivity of fracture technology. In 1989, we began recycling water from our surface operations into our room and pillar dry mine workings, successfully recovering trona that was previously unrecoverable. We then developed the first solution mining based soda ash plant in the Green River basin. This plant produces the lowest cost soda ash in the world.

1989

T R O N O X A L K A L IS U S TA I N A B I L I T Y i n 2 0 1 4

In 2014, Energy Intensity decreased slightly compared to 2013. This was driven by increased reliability from our manufacturing excellence efforts, decreasing the energy consumption associated with unplanned ups and downs of the process.

In 2014, we were the first to pilot directional drilling technology for solution mining of Green River trona deposits. Directional drilling creates a cavity in the trona without the use of hydro-fracturing, allowing us to selectively solution mine while avoiding impurities. We expect this technology to open up millions of tons of trona for soda ash production which would not otherwise be feasible to dry mine or solution mine.

T R O N O X A L K A L IS U S TA I N A B I L I T Y i n 2 0 1 4

ESSENTIALELEMENTS

To Our Stakeholders,

Safety, innovation, quality and reliability are the hallmarks of Tronox Alkali’s sustainability strategy. They are the essential elements of our commitment to operational excellence, product value and transparent stakeholder relations.

Driving towards an injury-free workplace is our highest priority. To reach our goal of continually reducing injuries, we collaborate on an ongoing basis with our employees, union representatives and industry experts on opportunities to improve safety performance.

recovery of greater quantities of our trona resource.

Tronox Alkali’s teams combine manufacturing excellence, supply chain expertise and technical leadership to ensure that we deliver

high quality products with reliable logistical support. By innovating throughout this process we improve

customer service and satisfaction, and build stronger relationships.

We remain a dependable partner in production and supply of high-purity natural soda ash after more than 60 years in operation. Our future embraces the same values to which we have always

aspired as we continue to dedicate ourselves to safety,

superior manufacturing processes, sustainable solutions and active engagement with our stakeholders.

On April 1, 2015, Tronox Limited, a leading global mining and minerals company, completed the purchase of Alkali Chemicals from FMC Corporation. This is a natural fit and our Alkali business will thrive as a new, strategic component of Tronox. We look forward to continuing and strengthening our sustainability programs together.

Finally, I would like to sincerely thank our Tronox Alkali employees for their dedication and commitment to achieving our goals, particularly during this time of change.

Tronox Alkali’s teams combine manufacturing excellence, supply chain expertise and technical leadership to ensure that we deliver high quality products with reliable logistical support.

Our emphasis on innovation enables us to increase productivity while better serving world markets. We pioneered trona longwall mining, and developed and patented solution mining technology. Both techniques contribute to increased safety and enable more efficient extraction and

President’sLetter

1

Tronox Alkali is the world’s largest producer of natural soda ash, offering a secure, reliable and diverse range of high quality product choices. Our main operations are in Green River, Wyoming, home of the world’s largest trona ore deposit. Due to our multi-plant operations, we can provide unique volume, flexibility and reliability advantages, a differentiation appreciated by our customers.

This brochure describes Alkali’s sustainability work, performance and achievements in 2014, under FMC Corporation’s ownership. When discussing these results, we refer to FMC Alkali Chemicals as Tronox Alkali, given the change in ownership. We will report 2015 sustainability results in coordination with Tronox.

2 0 1 4 T R O N O X A L K A L I R E V E N U E

$456,097,000 | 58%

Glass ManufacturingDetergent Formulation

Chemical Manufacturing

Water Treatment

Pulp & Paper Production

I n d u s t r y A p p l i c at i o n s

Organizational Profile

I N T E R N A T I O N A L ( E X P O R T )

$326,686,000 | 42%

2

U . S .

Building safety skills and maintaining a focused, attentive mindset are the foundation of our approach to providing a sound workplace. Active engagement of each and every employee is critical in building Tronox Alkali’s safety culture as we work together to consistently achieve best practices.

To work toward our ultimate goal of an injury-free workplace, we developed our safety excellence framework, known as the “One Plan.” This Plan includes three guiding principles:

Implementation of the One Plan involves effective in-person safety discussions on the shop floor, training in hazard identification and avoidance, standards and life critical policies, and on-boarding programs for new employees.

Tronox Alkali believes that to be world class, we must be safe above all. Our safety progress is a multi-year journey in which we have seen our efforts result in a consistent downward trend in recordable incidents. Our Total Recordable Incident Rate (TRIR) had declined from 8.86 in 2001 to 1.40 in 2013. In 2014, our incidence rate increased slightly to 1.53. While we are disappointed that the TRIR did not decrease, we are proud that our workforce stayed focused and engaged in safety despite significant changes in the business during 2014. As we extend implementation of the One Plan in 2015, we expect continued progress toward an injury-free workplace.

Driving Safety Performance

T R O N O X A L K A L I S a f e t y P e r f o r m a n c e

0

2

4

6

8

10

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

8.86 8.76

8.08

6.45

4.71

4.184.04

3.65

2.342.10 2.19

1.951.40 1.53

OSHA Incident Rate

Everyone is Involved and Engaged – In Reducing Injuries

3

Each of us will Re-think Risk in Everything We Do – To Lower Our Risk Tolerance

We Will Increase Training and Development – To Consistently Achieve Best Practices

By innovating throughout our value chain, Tronox Alkali has become the industry leader in mining and processing trona ore into natural soda ash.

We were at the forefront of our industry in using longwall mining, a technique that recovers approximately 35 percent more mineral than conventional room and pillar mining. More recently, we implemented our proprietary secondary recovery solution mining technology to further improve trona ore recovery while enhancing energy efficiency.

To complement the mining innovations that enable us to maintain a dependable supply of trona ore, we have established a formal, in-house strategic capability for performance improvement. The Continuous Improvement Team is responsible for identifying innovations in our manufacturing processes, plant maintenance and operational efficiencies that will help ensure consistent quality and reliability of our products.

Our technology and engineering teams have focused on development and implementation of technologies to optimize alkali recovery and reduce processing costs.

• We created and currently operate processes that maximize separation of alkali from impurities such as salt.

• In 2014 we piloted a unique in-mine drilling project at one facility which should optimize the trona concentration from our solution mining and minimize the amount of energy used in our plants for evaporation.

• We recently launched a pilot project to use directional drilling technology to open up substantial quantities of trona for future solution mining.

K e e p r e a d i n g

Value-Driven Innovation

With reliability and on-time performance central to our business strategy, we are well positioned to meet our customers’ needs – whether planned or unexpected.

As an example, we stepped in to fill an order when a major glass manufacturer found it required more soda ash than it had on hand at a facility we were not routinely servicing. To meet the need for additional supply, we leveraged our production scheduling, inventory management and logistics expertise to enable timely product delivery to fill the gap. Although our customer faced a challenging situation, our high level of responsiveness enabled the company’s operations to continue running smoothly.

R e l i a b i l i t y A d d s C u s t o m e r Va l u e

Longwall mining recovers approximately 35% more mineral than conventional room and pillar mining.

4

Green River, Wyoming, home of Tronox Alkali’s operations, is located atop the world’s largest trona ore deposit.

K e e p r e a d i n g

5

S Y N T H E T I C V S . N A T U R A L S O D A A S H P R O D U C T I O N

Mm

btu

per t

onne

so

da a

sh

Tonn

e G

HG

per

to

nne

soda

ashE N E R G Y

C O N S U M P T I O N F R O M S O D A A S H P R O D U C T I O N

G H G E M I S S I O N S F R O M S O D A A S H P R O D U C T I O N

Natural soda ash processing is 40% more energy efficient than synthetic (before shipping), with lower GHG emissions.

China Synthetic US Natural

T Y P I C A L S Y N T H E T I C P R O C E S S I N G

N A T U R A L S O D A A S H P R O C E S S I N G

WYOMING, USACHINA

Inputs: Salt, Ammonia, Limestone, Energy

Output: Soda Ash

Output: Soda Ash

Inputs: Milled Trona Ore, Energy

THAILAND CUSTOMER

17% Lower GHG Emissions

(even after shipping)

See pages 6-7 for more on life cycle assessments.

Conscientious Resource ManagementOptimizing efficiency and reducing waste associated with inconsistent operations are significant considerations for Tronox Alkali’s Manufacturing Excellence (ME) program. Intended to safely increase volume and reliability, the program has more than 20 initiatives in progress and we are working to deliver a measurable sustainability advantage.

E n e r g y

Our ME efforts allowed us to increase production while using similar energy levels, helping us to achieve an overall 2014 energy intensity decrease. Some of our projects this year included:

• Process improvements to reduce steam consumption by over 200 million pounds.

• Partnering with Rocky Mountain Power on its “demand side management” program. Through this effort, we made solution mine pumping efficiency improvements that will save about 1000 megawatt hours per year of electrical energy.

Also, we are planning for additional pumping efficiency projects that are expected to save another 700 megawatt hours per year. While these recent energy reductions represent a small percent of our total consumption, once fully realized they will be equivalent to the amount of electricity required to power 155 homes for one year.

G r e e n h o u s e G a s E m i s s i o n s

In 2014 our greenhouse gas (GHG) intensity value increased slightly. This increase occurred primarily because of:

• Updates to our GHG multipliers in 2014 for naturally occurring methane emissions from our mining operations.

• Increased use of coal fired boilers. As part of operational efficiency efforts, we improved the reliability of our coal fired boilers – the lowest cost source of steam for our operations. Using coal boilers is less expensive than using natural gas, but this trade-off increases our GHG emissions.

Tronox Alkali has conducted rigorous life cycle assessments (LCAs) that confirm that less energy is used in mining, manufacturing and delivering our natural soda ash to customers anywhere in the world compared to the synthetic option. Synthetic production requires substantial energy and numerous processing steps to combine ammonia, salt, and limestone

6

Our Granger facility was honored to receive the American Chemistry Council’s 2014 Responsible Care Energy Efficiency Award. This award recognizes projects that represent a “Significant Improvement in Manufacturing” and the use of technical innovations to reduce energy consumption.

Our project optimized the operation of our electrostatic precipitator so that each cell would perform at the most efficient energy level. In doing so, we improved performance of one step in our process – particulate scrubbing – and achieved a 30 percent reduction in the amount of energy used. That reduction equals a reduction of about 1,900 tons of CO2 emissions per year.

A m e r i c a n C h e m i s t r y C o u n c i l R e c o g n i z e s E n e r g y E f f i c i e n c y

just to get to a precursor suitable for conversion into soda ash. Our key raw material, naturally occurring trona, already exists in a form ready for conversion into refined soda ash. When all impacts are combined, production of our soda ash generates lower GHG emissions than the synthetic alternative, which is important to us and our customers who seek to reduce their total carbon footprint.

In 2014, we worked with the Industrial Minerals Association – North America (IMA-NA) as they conducted an industry-wide LCA of natural soda ash compared to synthetic soda ash, using data from multiple manufacturers. The goal of the LCA is to ensure that our customers, governments and all stakeholders worldwide have access to accurate information about the sustainability benefits of natural soda ash. The research is currently undergoing a peer-review assessment and results will be published by IMA-NA in 2015. See page 5 for more information on life cycle assessments.

There is a significant concentration of dissolved, and therefore unused, trona in the water recovered during longwall mining. This water also contains high amounts of salt and other impurities.

Rather than waste the trona, we developed and implemented a unique process that redirects the water to previously idled evaporation equipment. The process separates the impurities so that fresh water is recovered and more trona is converted into soda ash. As a result, we are retrieving significant amounts of soda ash per year while reducing the amount of water and unrecovered alkali sent to our evaporation lake system.

B e n e f i c i a l R e u s e o f W a s t e W at e r

W A T E R

Our operations use water for processing of trona into soda ash. In 2013 we conducted a water risk assessment that indicated future potential water instability in the Colorado River basin, including the Green River, due to population growth and potential future changes in climate. We are confident that we have adequate water availability in the near term. We are investigating conservation opportunities and working with government officials, the Wyoming Mining Association and non-governmental agencies to ensure that the area’s water flow is sufficient for all users over the long term.

In 2014, to improve our sustainability measurements, we engaged a third party to assess data collection processes at our Green River facilities. The review indicated that we should add rainfall into our overall water use calculations. Our water intensity increased due to above average rainfall in the third quarter of 2014, as well as slightly higher water consumption for solution mining.

W a s t e

In 2014, Tronox Alkali’s total waste intensity decreased significantly. This decrease was driven by significantly reduced scrap metal generation in 2014 compared to 2013. Additionally, processing of trona ore results in large amounts of excess inert shale rock and boiler ash. Tronox Alkali generated 795,000 tonnes of this material in 2014. To minimize the amount of waste going into landfill, we return much of the inert shale rock to formerly mined areas and manage the rest of the material in engineered disposal units on site.

7

Employee and Community DevelopmentE m p l o y e e D e v e l o p m e n t

In 2014 we initiated an organizational transformation designed to improve operational effectiveness, enhance line of sight accountability and provide opportunities for high potential talent to build their expertise. The new structure enables more effective deployment of our people in tandem with focused capital deployment.

C o m m u n i t y E n g a g e m e n t

Tronox Alkali is committed to Wyoming’s people and ecosystems. We have been a member of the Green River, Wyoming, community for more than 60 years, and we value our responsibility to our region. Our support of community

Because we know that our reliable operations depend on the skills and expertise of over 100 engineers at Green River, Tronox Alkali focuses on developing our engineers’ technical and leadership skills.

Sam Bethea brings over 20 years of capital engineering and maintenance experience, from eight different industries, to his role as Engineering Manager. Sam manages the engineering function at Green River, and ensures a strong connection between career development and effective operations. Sam has led the initiative to reorganize capital projects at Green River, which involved differentiating skill sets between project managers and technical expert “discipline engineers”. This differentiation allows Sam to take advantage of people’s skill sets and to create project teams with engineers working within their distinct areas of experience and expertise.

Caroline Hayes, Engineering Systems Manager, supervises production engineers across the Green River site, led the team that developed the Technical Development Program for production engineers, and manages the Technical Development Program. Under Caroline’s leadership, engineers spend approximately 18 months training in five categories: safety, technology, operations, quality, and people skills. During their training they rotate through multiple plants to obtain knowledge and improve understanding of different roles in the organization to see how they can maximize their skill sets. Caroline works on career development and paths for all employees, as well as continuously improving training programs to meet the needs of employees.

E n g i n e e r i n g Ta l e n t G r o w t h

8

interests is evident through a range of philanthropic activities and charitable contributions focused on health, education and biodiversity.

In 2014 we donated $25,000 to Memorial Hospital of Sweetwater County. This facility serves about two thirds of our employees and their families, and is an essential resource for satisfying our area’s health care needs. Our contribution will go toward expansion of the hospital’s Cancer Treatment Center, and will likely fund development of an area where patients and visitors can relax in a comfortable environment.

We have supported the health of Sweetwater County cancer patients for many years through participation in

U n f o l d P o s t e r H e r e

fundraising events of Cowboys Against Cancer. This non-profit organization assists with medical treatment travel expenses for patients between the county and other areas and for the development of advanced cancer treatment facilities locally.

The Congressional Award recognizes initiative, service and achievement by young people in key areas of leadership and education. We have raised funds for this program for many years, most recently in cooperation with Wyoming Senators Mike Enzi and John Barrasso and Representative Cynthia Lummis.

To stabilize the population of Greater Sage-grouse, a bird that is a candidate species for listing as threatened or endangered within the U.S. Endangered Species Act, we are leading efforts to collaborate with regional stakeholders on a long-term conservation effort. Our activities include local Sage-grouse counts, monitoring, restoring and enhancing their habitats, and designing roads and structures in ways that minimize

disruption of their surroundings. In 2014, we planted sagebrush seedlings to reseed an area outside our fenced facility. Following collection of native seeds from our Granger site, sagebrush seedlings were grown in an Idaho nursery and then returned and planted to expand the available habitat.

We work with Wyoming Wildlife – The Foundation, an organization dedicated to the enduring natural legacy of the state’s wildlife, on projects that save land animals and birds by converting regular fencing to wildlife-friendly fencing. At our Granger and Westvaco Ducker Clinics we maintain a duck cleansing operation to rescue birds that land in our evaporation ponds and come in contact with soda ash.

These and other stewardship efforts reinforce our commitment to being a good corporate citizen and a valuable community participant. We are a leading partner in improving our area’s welfare.

Ron Gossard, Environmental Engineer Coordinator, sorts sagebrush seedlings, grown from native sagebrush varieties, to be planted near the Granger site.

9