01March 24th 2016

We are terribly sorry for the tragic events of 5 November 2015 and the impacts of people, communities and the environment. We understand we are responsible for the enormous task of trying to make things right and this document is an account of the work we have undertaken in our social and environmental efforts.

DO THE RIGHT THING. THAT IS OUR COMMITMENT.

02March 24th 2016

• Brazilian mining company, closely held, controlled 50/50 by BHP Billiton Brasil

Ltda. and VALE S.A.

• Founded in 1977

• Main product: iron ore pellets of high added value, sold to the global steel industry

• In 2014, held the position of 10th largest exporter in the country, according to the

Ministry of Development, Industry and Foreign Trade

• Two industrial units, one located in Mariana (MG) and the other in Ponta Ubu (ES),

connected by three iron ore slurry pipelines of about 400 km each

• Own port facilities in Ubu (ES) from where our production is shipped overseas

• Sales offices in Belo Horizonte (MG) and Vitória (ES) as well as in Amsterdam and

Hong Kong.

WHO WE ARE

03March 24th 2016

On March 2, Samarco and its shareholders, Vale and BHP Billiton, signed an agreement in Brasilia with the Federal Government of the states of Minas Gerais and Espírito Santo to speed up measures for the social, environmental and economic recovery of the regions affected by the burst of the Fundão dam.

The document reaffirms the company’s commitment to the recovery of all of these areas, and focuses on the emergency actions that adopted by Samarco since November and proposes new projects.

Commitment and Responsibility“We understand that we are responsible for the enormous task expressed in the agreement and we will not spare efforts to comply with our obligations. Samarco has a strong commitment with the people and the environment affected, and will fully support the Foundation and the implementation of programs at all work fronts, as foreseen in the document.”Roberto Carvalho, CEO of

FoundationThe agreement signed today foresees the creation of a Foundation that will be responsible for implementing approximately 40 programs into two main work fronts, being one socio-economic and the other socio-environmental.The Foundation will be maintained by Samarco and must be created within 120 days. Until it is in operation, the company will continue performing all the actions of social and environmental recovery in progress.

AGREEMENT

Investment WhenBRL4.4 billion First three years

BRL240 million per year for compensatory actions From 2016 to 2030

Between BRL800 million and BRL1.6 billion Between 2019 and 2021

BRL500 million - basic sanitation fund for affected municipalities

By the end of 2018

Annual contributions will be defined according to the forecast of the annual progress.

Starting in 2022

04March 24th 2016

Commitment and TransparencyThe agreement offers clear commitments, sets deadlines for the submission and execution of projects and applies the rules of transparency and accountability of the activities. The affected populations will follow up all projects, there will be external audits and an ombudsman will be created to assist the citizens.

Socio-economic and socio-environmental highlights

AGREEMENT

Availability of resources, as compensation of BRL500 million, for certain affected municipalities, to use in the preparation and execution of plans for sewage collection and treatment and landfills.

SOCIO-ENVIRONMENTAL COMMITMENTS

SOCIO-ECONOMIC COMMITMENTS

Recovery of Permanent Protection Areas (PPAs) of the Doce River and tributaries through the compensatory reforestation of 10 thousand hectares and conduction of natural regeneration of 30,000 hectares in a period of ten years in the amount of BRL1.1 billion.

Compensatory recovery of 5 thousand springs to be defined by the Basin Committee of the Doce River.

Reconstruction of the affected locations, such as Bento Rodrigues, Paracatu de Baixo (Mariana) and Gesteira (Barra Longa), ensuring their participation in the dialogue process with the affected communities to define measures for the recovery or relocation.

Implementation of actions for the recovery of economic and productive activities affected, such as agriculture, fishing, services and commerce.

Creation of permanent channels of communication and dialogue with the community, as well as carrying out agendas to present the progress and results of the programs to be implemented.

Implementation and maintenance of measures to support the indigenous people affected.

The health, social protection and education programs for the restoration of affected public services and the follow up of individuals and families affected are foreseen.

Cultural material recovery and preservation of the cultural heritage affected.

Running a compensation program and compensations through coordinated negotiation, designed to repair and compensate the people affected, with optional adhesion.

05March 24th 2016

ENVIRONMENT Ever since it started its operations, still in the decade of the 1970´s, Samarco has been making a concerted effort to reduce the impact of its operations and make optimal use of natural resources. Over the years, the Company’s environmental vision has evolved and led to the incorporation of practices and applications which more than meet legal requirements.

The environmental control actions are incorporated into the entire production and planning process. The Company has invested in legal compliance and in controlling impacts related to subproducts, water and emission of greenhouse gases and particulate matter.

As a result, we have achieved:

Sustainable water use*• About 90% of water is recycled in the production process• 14.5% of the industrial consumption of electric energy at Samarco is supplied by the hydropower plants it owns outright or partially (Muniz Freire and Guilman-Amorim)• 185 million cubic meters of water were reused by the Company between 2011 and 2014

Reduction of emission in operations *• 91.5 kg CO2e/t is the rate of intensity of emission of greenhouse gases by Samarco, considering the ratio between the volume of emissions and the production of pellets and pellet feed

Energy efficiency*• 7.6% of reduction in the consumption of energy compared to the estimate for 2014

Technological studies*Samarco is working with a portfolio of some 50 technological studies, focused on six themes: mineral resources, tailings and overburden/waste, water resources, renewable and/or alternative energies, energy efficiency, and atmospheric emissions.

*Data from 2014

WHO WE ARE

06March 24th 2016

BRAZIL S ECONOMY

Samarco’s sales revenue is equivalent to about 6.4% of the GNP of Espírito Santo and 1.6% of the GNP of Minas Gerais

The Company paid R$ 1.5 billion in taxes in 2014. This corresponds to almost 20% of what the federal governance expects to collect annually with the new CPMF tax.

In many localities, the taxes generated directly by Samarco’s activities are vital to the municipalities.

% Equivalência Receita Samarco ao PIB MG 1,6%

% Equivalência Receita Samarco ao PIB ES 6,4%

Expected CPMF revenue over 4 years 32,000,000

Samarco's direct taxes 2014 (1 year) 1,500,000

% Equivalence Samarco taxes/CPMF 19%Amounts in R$ thou

Taxes Mariana/MG 20,552 (54% of revenue)

Taxes Ouro Preto/MG 19,335 (35% of revenue)

Taxes Anchieta/ES 29,437 (50% of revenue)

Amounts in R$ thou

07March 24th 2016

The Company’s exports represented 1% of Brazil´s total exports in 2015.

Without the Company’s exports, the deficit in the Brazilian trade balance would have tripled in 2015.

Sources: MDIC, IBGE (2013), SEFAZ-MG, SEFAZ-ES (IPVA+ICMS+ITCD), Agência Brasil and Samarco

Brazilian exports in 2015 191,134,324

Samarco revenue in 2015 1,921,460

Samarco's export representation 1%

Samarco's equity in the trade balance

10%

Amounts in R$ thou

BRAZIL S ECONOMY

08March 24th 2016

Date: 5 November 2015

Dam accidentThe Fundão dam breached and the released tailings impacted the nearby Santarém dam – which stored water – causing a partial erosion of its right shoulder. The impact also provoked damage to the Selinha dike, one of the side walls of the Germano dam.

THE ACCIDENT

Emergency actionsImmediately after the accident, together with the Civil Defense, Fire Department, Military Police and other authorities, Samarco performed all the actions outlined in its Dam Emergency Action plan which had been validated by the competent agencies.

Guidelines Acting in a preventive way, the company has adopted extra safety measures to reinforce guidelines to the residents of the communities in the region of Mariana. The emergency procedures comprise the scope of the fix sirens and the position of each gathering point. Furthermore, there is around-the-clock surveillance with the use of cameras, large screens, drones and radars, other than field inspections and visual monitoring of Santarém and German dams.

EMERGENCY PLAN

09March 24th 2016

CompositionThe Samarco dam system consists of the dams of Germano, Fundão and Santarém.

LicensingAll of the Samarco dams have valid Operating Licenses issued by the Regional Superintendency of Environmental Compliance (Supram). The last inspection – performed by a specialized geotechnical consulting company hired by Samarco – took place in July 2015, and in September the corresponding technical reports were delivered to the competent government agencies, showing that the dams were safe for operation. Samarco also carries out its own inspections, in compliance with the Federal Dam Safety Law, with a 24/7 team on duty for maintenance and monitoring.

DAMS

Aerial view of the dam region before the accident

10March 24th 2016

Since the accident, Santarém dam has been receiving strengthening works and is currently steady. Santarém dam’s spillway is opened, enabling the flow of the material from inside the reservoir to the sludge containment dikes below this dam.

The structure of Germano is currently steady. The major ongoing actions are related to the capture of water from the resevoir and constant monitoring of the structures with the use of a radar, other than the geotechnical inspections.

At the time of the incident, there was no need for the activation of a sound alarm by the company. The Civil Defense of Mariana and Barra Longa were duly informed on the fact immediately. The displaced volume remains between Fundão and Santarém dams, within Samarco’s areas. Due to all the measures undertaken, by means of monitoring, allert procedures and inspections, the community is not under risk.

DAMS

11March 24th 2016

Monitoring The monitoring room set in Germano Unit, in Mariana, received new equipment to enhance the control of the dams structures and dikes. The new equipment are part of an action plan that, even before the accident, complied with all measures required by law. Supported by cameras, large screens, drones, radars and field inspections, a team comprised by more than 40 people monitors 24 hours per day the situation of Santarém and Germano dams. Furthermore, it has been installed a station for visual monitoring, which also operates 24-7.

Monitoring room at the Germano Unit

DAMS

12March 24th 2016

IMPACTEDCOMMUNITIES

12

13March 24th 2016

Lodging for familiesIn its effort to provide suitable housing for the residents impacted by the accident, Samarco has accommodated all the displaced families into houses or other lodgings chosen by them in Mariana and Barra Longa.

The relocation to the new homes has complied with the criteria and methodology of prioritization defined by the Committee of Representatives of Affected Communities. Priority is given to families with members over 65, or with children, newborns and pregnant women, people with special needs or requiring constant medical care.

The homes all have brand new furniture, including household appliances and bed/bath linen. When the families move in, they receive a full supply of food, including vegetables and fruit, as well as drinking water, in addition to basic cleaning products and personal hygiene items.

HUMANITARIAN ACTIONS

IMPLEMENTED IMMEDIATELY AFTER ACCIDENTBELOW ARE SOME NUMBERS OF THE RELIEF PROVIDED BY SAMARCO SINCE THE DAM ACCIDENT ON NOV. 5, INVOLVING FULL ASSISTANCE TO THE AFFECTED FAMILIES, INCLUDING FOOD, PERSONAL HYGIENE ITEMS, HEALTH CARE AND PSYCHOSOCIAL SUPPORT

Potable water supplied 715,8 million liters

Mineral water supplied59 million liters

Families living inrented homes100%

Animals rescued andcared for 6,971

7 bridgesbuilt

Prepaid allowance cards for families. Initial delivery of over four thousand cards

100% Communities with reestablished access

There are 118 water monitoring points along the river Doce and in the ocean

Infrastructure and support for rescue of river fish: over 150 thousand rescued fish

Re-vegetation of over 5 million m² along the margins of rivers Gualaxo, do Carmo and Doce.

* Figures updated on 24/03. Follow the daily updated www.samarco.com

14March 24th 2016

SEE THE VARIOUS STEPS OF THE PROCEDURE FOR DELIVERING HOMES TO THE FAMILIES.

Meeting with the community Twice a week, Samarco promoted meetings with representatives of the impacted communities, the Public Prosecutor’s Office of Minas Gerais and other competent authorities to discuss the humanitarian relief actions and emergency measures. The criteria and the methodology for prioritization of assignment of homes were some of the issues defined in these meetings

Social dialogue with household members In this phase, Samarco professionals went to where the families were temporarily lodged to listen to their needs, so that the home to be offered would meet their expectations. Among the aspects evaluated were the number and size of the rooms, availability of garage, location, type of residence and proximity to relatives.

Purchase of furniture From the beginning of the relocation process, a Samarco team was in charge of the purchase of the furniture for the new homes, giving priority to local suppliers. All of the families received new furniture, household appliances, bath/bed linen.

HUMANITARIAN ACTIONS

15March 24th 2016

Evaluation of available real estate Concomitantly with the social dialogue, another group of Samarco professionals searched the Mariana region looking for rental properties. They evaluated the condition of the homes, considered the infrastructure, safety aspects, paperwork and supply of electricity and water. Altogether, 700 units were mapped and inspected.

Matching needs Once the Samarco professionals had determined the needs of each household, they crosschecked the data with the real estate mapping, and informed the families of the features in each available unit.

Cleaning and checking the infrastructure Samarco professionals visited the units to perform the necessary clean-up and check on the electrical and plumbing systems, so that the families would have no future problems in this regard.

Discussion of options After the units had been cleaned and the infrastructure had been approved, the families were shown the options that would meet their needs. The Company picked them up at their temporary lodging, accompanied by a social assistant of Mariana town hall, and took them to all the pre-selected homes. If they could not find a satisfactory home in the first round, additional visits were made to other units.

Choosing the house After the visits had been concluded, the families chose the unit they liked most and signed the corresponding term of agreement with Samarco.

Preparation and organization As soon as the new furniture arrived, it was assembled and installed, and the household items and linen were organized in readiness for the new residents.

Supply of foodstuff Samarco, in partnership with Mariana town hall, supplied the families with staple food, fruit and vegetables, cleaning products and personal hygiene items, from donations made to the affected families.

HUMANITARIAN ACTIONS

16March 24th 2016

HUMANITARIAN ACTIONS

Moving the familyOn the day of the move, the Samarco team picked the families up at their temporary lodging and took them to their new homes.

Picking up donationsAfter the move, the Company offers transportation for the family to go to the Mariana Convention Center to pick up available donated items.

Financial support for the familiesIn November, Samarco started delivering prepaid debit cards providing financial support to the families impacted by the dam accident. By the March 24th, an overall total of 4.319 cards had been distributed. Delivery of new cards will continue as the people who apply for this benefit are duly registered and validated, until all eligible households receive this allowance.

The objective of this action is to provide resources for the payment of personal, family and home expenses by people who have temporarily lost their source of livelihood. The families directly affected by the accident with the dam were listed by Samarco and the Civil Defense in Mariana and Barra Longa. The beneficiaries include families staying with relatives or those

Kitchen of one of the homes rented by Samarco

17March 24th 2016

Mariana and Barra Longa. The beneficiaries include families staying with relatives or those lodged at the hotels and inns or temporary homes, as well as dependents of any age who live in the same residence and depend on the household’s source of income. In other words, relatives such as in-laws, aunts and uncles, brothers and sisters, children, will be each be entitled to the additional allowance for dependants.

Beneficiaries will also include families living along the Doce River in Minas Gerais and Espírito Santo who suffered an impact on their livelihood derived from fishing and extracting sand and rock, based on an Agreement between Samarco and the Labor Public Prosecution Service of both states, resulting in the so-called Term of Adjustment of Conduct (TAC).

HUMANITARIAN ACTIONS

Financial support debit cards

18March 24th 2016

Teams from the company hired by Samarco for the management of this aspect, Golder Associates, are visiting families who live along the river to determine the impacts suffered. When it is found that the residents have lost their means of subsistence, they will receive one minimum wage per worker plus an additional 20% for each dependent, in addition to the value of a staple food basket as determined by the official entity DIEESE.

This allowance is in the form of a prepaid debit card which can be used for purchases in stores and also allows withdrawals and transfers of funds at ATMs.

These actions are prescribed by the Term of Adjustment of Conduct (TAC) signed between Samarco and the Public Prosecution Service at the state and federal levels in both Minas Gerais and Espírito Santo, as well as the Labor Public Prosecution Service. The TAC is a complement to the Preliminary Socioenvironmental Term of Commitment signed previously by Samarco. The document outlines the actions to be undertaken with the fishermen and riverside dwellers who have been prevented from carrying out their normal river-related work activities in the 37 municipalities along the Doce River.

In addition to the TAC obligations, Samarco has developed a Plan of Social Attention to Fishermen and Riverside Dwellers, establishing actions to strengthen their associations and networks, such as support in areas of information management and management training.

Areas for reconstructionIn February Samarco started searching for possible areas to reconstruct the communities of Bento Rodrigues and Paracatu de Baixo, districts of Mariana (MG). The search is based on the criteria surveyed within the community members and classified according to their importance. Samarco also developed a viability study in each plot of land before presenting them to the 340 families who have been impacted by the dam accident.

The study of viability of these areas includes a survey on the regulamentation of the land papers, other than inspection on issues that might hamper the environmental licensing, such as the presence of rupestrian fields and archeological sites. Samarco will also simulate some urbanistic projects to verify whether the lands can house the new districts.

The company has kept a close aproach to the affected communities through dialogues with their committees. Representatives chose to share the issues discussed in meetings with other community members in assemblies, so that all the decisions are made collectively,

HUMANITARIAN ACTIONS

19March 24th 2016

by voting. For instance, the decision to reconstruct the villages in different areas was made this way.

Samarco is committed to complete the reconstruction of the communities as soon as possible. The plots of land are expected to be chosen by April.

Psychosocial support Since November 5th, families from the communities of Mariana, Barra Longa and nearby districts have been receiving psychosocial support from psychologists and social workers. These professionals visit homes, hospitals, inns and hotels of the region to provide individual, family or group care to help the affected families. When the need for ongoing care is identified, the resident is referred to specialists in mental health of the Mariana city administration

.

Design, with the community, the new plant of each district. In this stage, the conceptual project, defining the localization of equipment, such as churches, schools, health centers, parks and soccer fields, will be elaborated. The criteria to define the size of the land and construction standards of the homes will also be decided – still without individual decisions.

Individual dialogue with the families to decide details, such as location and structure of each residence and finishing standards.

Once the individual agreements are closed, the reconstruction will start.

Moving and monitoring the families in new homes.

Definition of the land

Steps for reconstruction

20March 24th 2016

EducationWith support from Samarco, all the students from the districts of Mariana and Barra Longa affected by the accident with the dam started the school year of 2016. Buildings were renovated and leased by the company, new spaces were prepared, and transportation started to be offered to students. Barra LongaAt the Public School Padre José Epifânio Gonçalves, the renovation of the social hall, computer and chemistry labs and a sports field was concluded.

The school received the necessary furniture, such as tables, chairs, benches, computers and laboratory equipment, besides papers, pens, pencils and other important items to perform the classes. Students of the final years of elementary school, high school, Youth and Adult Education (EJA) and Pronatec study at the institution.

The students of Child Education of the Public School José de Vasconcelos continue their classes in the space that was leased, renovated and furnished by Samarco last year.

In Gesteira, the property that was also prepared in November to receive the elementary school students was improved. The preparation of the space included painting and roof repairs, flooring and electrical installation. MarianaAfter sharing the same space at the end of 2015, the school community of the districts of Bento Rodrigues and Paracatu de Baixo now have their own space, in response to the demands of the parents of students and the teachers.

Samarco supported City Hall in search of a new location and the school of Paracatu de Baixo began its work in the building, which until last year, hosted the Public School Morro de Santana. The students from Bento Rodrigues occupy the Public School Dom Luciano.

The company contributed furniture and equipment for the schools and enabled the transportation of students of the two communities to the units.

HUMANITARIAN ACTIONS

21March 24th 2016

Public service centersIn Colatina, Linhares, Marilândia and Baixo Guandu, in Espírito Santo, and in Mariana, Barra Longa and Tumiritinga, Minas Gerais, the population can be helped by professionals contracted by Samarco in booths set up at the locations designated by the government authorities. The objective of these centers is to centralize the grievances, doubts and requests of the community, facilitating compliance and monitoring of solutions.

The Company is also available for support to the residents of these and other localities through the following channels assistencia.es@samarco.com, relacionamento@samarco.com, Public Relations (0800 031 2303) and Ombudsman (0800 721 0717).

HealthSamarco hired professionals – doctors, nurses and nursing technicians - to work 24-hour shifts on weekends at the Barra Longa Health Unit to meet the extra needs of residents and add to the medical care already existing during the week in the municipality. Items essential to health care, such as medicines, hospital, hygiene and cleanliness supplies were already purchased. Furthermore, an ambulance for patient transportation was released. In Mariana, psychologists and occupational therapists were hired to allow the Health Department more room to act. Samarco rented the property for the implementation of a temporary family Health Unit of Bento Rodrigues and the district of Paracatu, adapted according to the legislation for the development of the health actions.

Support to the families of missing people The families of missing people are receiving psychosocial support from professionals specialized in risk situations. Like all the rest of the communities of the affected areas, they also receive other forms of assistance, such as lodging at inns, relocation to rented homes, furniture kit, food and monthly allowance.

HUMANITARIAN ACTIONS

22March 24th 2016

For those that lost a family member as a result of the accident, the Company has paid for all costs of documentation and burial. In the case of outsourced employees, the Company provides lodging for the people who are from other regions and complements the life insurance to cover the costs of funeral expenses.

Job prospects In alignment with the actions of the Occupation, Employment and Income, 225 residents of Mariana, Barra Longa and region were offered new opportunities in the job market, in December and January. The hiring was carried out by partnering firms, which are working on different fronts, such as the renovation of real estate units, fencing and rehabilitation of rural properties, revegetation, organization of donations and care of rescued animals.

In addition, some 30 youths from the communities of Bento Rodrigues and Paracatu (MG) enrolled in the selection process of the Instituto Federal de Minas Gerais (IFMG) for technical courses, and Ensino Médio Integrado in the areas of Industrial Automation, Administration, Metallurgy and Building Design. In November, they attended a lecture on professional development delivered by professionals of IFMG, with the support of Samarco, the city administration of Mariana and the Grupo Coaching Condor Blanco.

Employment and incomeOver 800 people from Mariana and Barra Longa impacted by the dam accident had their professional profile surveyed by the Occupation, Employment and Income team, one of Samarco’s work fronts.

The objective of this work is to seek the reintegration of those impacted by the accident into their former functions, reestablishing their work conditions or potentially opening up new fronts. Among the population of the sub-districts of Mariana, 374 interviews were held with those aged 14 or more. In Barra Longa (MG), 38 tradespeople were interviewed.

HUMANITARIAN ACTIONS

23March 24th 2016

And in the municipalities along the Doce River, 170 properties that had their sustainability conditions affected were mapped and visited. Seventy professionals, including Samarco employees, zootechnicians, agricultural technicians and agronomy engineers, have been mobilized to perform this activity, and all the necessary support equipment provided.

All of the information collected during the interviews is fed into a database, according to six criteria – people who totally lost their agribusiness, people who suffered a partial loss of their agribusiness, people living on the property where the agribusiness was affected, people who lost their store, people who lost their means to be service providers, people who lost their job, occupations, and professional development training. This work will continue throughout 2016.

Young adults participating in lectures on the selection process for IFMG courses

HUMANITARIAN ACTIONS

24March 24th 2016

BARRA LONGA

Clean-up of homes Samarco teams are carrying out cleaning and renovation processes in several residences and commercial buildings, which have been affected by the accident. The work comprises the renovation of floors, walls, doors, windows, roofs, facades and pavements, other than electrical and hydraulic installations as well as the implementation of sewage systems. There will also be a reposition of furniture, household appliances, electronic devices, bed/bath linen, according to each demand.

CandongaFive teams are working on cleaning the outside area of the Candonga Reservoir, responsible for feeding the Risoleta Neves hydropower plant, in the municipalities of Santa Cruz do Escalvado and Rio Doce, about 100 km from Mariana.

The work is being done by companies hired by Samarco who are being monitored by the consortium Aliança Energia, which operates the plant, with the objective of reestablishing normal operating conditions.

HUMANITARIAN ACTIONS

Cleaning work advance in Barra Longa

25March 24th 2016

INFRASTRUCTUREReconstruction of bridgesSince the accident with the Fundão dam on 5 November, Samarco made a concentrated effort and, at the rate of one delivery every 15 days, on 15 February it concluded the rebuilding of the last damaged bridge. In all, seven larger bridges were reconstructed in Minas Gerais – four in Mariana and three in Barra Longa.

The last bridge to be rebuilt was Curvina, between the road that links Barra Longa to the district of Gesteira, and the road between Barra Longa and Acaiaca. The steel beam and concrete bridge has a capacity of 45 tons and a length of 37 meters.

On 6 February, delivery was made on the bridge in the district of Gesteira, 38 m long with a load capacity of 45 tons.

In addition to these, the Company recovered a small structure that links the district of Monsenhor Horta to the sub-district of Paracatu de Baixo, two days after the accident.

Bridges Delivered12/5 - Bridge between the districts of Águas Claras and Monsenhor Horta in Mariana12/11 - Bridge that connects the districts of Pedras and Borba to Águas Claras and Campinas in Mariana12/20 - Campinas Bridge, located between the communities of Campinas and Barreto1/6 - Ponte do Onça in Barra Longa1/22 - Bridge in the sub-district of Ponte do Gama in Mariana6/2 - Gesteira in Barra Longa15/2 - Curvina bridge in Barra Longa

Reconstruction of bridges

26March 24th 2016

Community Samarco maintains a constant dialogue with the communities of Mariana, Barra Longa and Governador Valadares, in Minas Gerais, and Colatina, Linhares and Marilandia, in Espírito Santo. Periodically it holds meetings with representatives of various categories, in addition to public entities and competent agencies, with the objective of making joint decisions to meet the specific needs of each community.

DIALOGUE

Dialogue with the community

27March 24th 2016

WATER

ConsumptionThe analysis reports of the companies responsible for supplying the affected cities along the Doce River confirm that the water arriving at the homes of the population is fit for human consumption and complies with the parameters established by the national sanitary inspection agency (Anvisa) – Ruling 2914/2011.

Governador Valadares (MG)The supply to this city was normalized on 16 November. After its abstraction from the Doce River by the water treatment plant, the water receives an organic coagulant based on tannin, extracted from the bark of the black wattle tree (Acacia mearnsii), which stimulates the formation of small flocks with the solids that are dissolved in the water, accelerating their decantation.

715,8 million liters of potable water and 59 million liters of mineral water distributed in municipalities of Espírito Santo and Minas Gerais**Numbers updated on 24/03/2016

28March 24th 2016

These are the solids that make the water look muddy. The use of the coagulant accelerates the clarification of the water and allows it to undergo the conventional treatment process carried out by local water utility, Serviço Autônomo de Água e Esgoto (SAAE). The solution was defined by a joint effort among the teams of Samarco, SAAE, the state water utility Copasa, and companies which supply water treatment products.

Baixo Guandu (ES)Since 16 November, the water supplied to the municipality of Baixo Guandu has come from the Guandu River, an alternative made possible by the installation of three water supply pipes to the treatment plant, an action of SAAE and the city administration of Baixo Guandu, with the support of Samarco through the supply of material and technical support.

Colatina (ES)Since 24 November, the water supply to Colatina has been resumed gradually. Reports of the local sanitation utility, Cesan, attest that the water treated by the water utility - Serviço Colatinense de Meio Ambiente e Saneamento Ambiental (Sanear) - is potable.

To this end, Samarco worked jointly with the municipal administration to reestablish the water intake for the city. Among the initiatives carried out, the Company offered the use of a natural flocculant, extracted from the bark of the black wattle/acacia tree, which is not harmful to the environment.

WATER

29March 24th 2016

WATER

Artesian wells and water supply pipesAs part of the plan to assure uninterrupted water supply, Samarco has installed water mains and drilled artesian wells in several cities.

In Colatina, Espírito Santo, the Company built water mains and drilled six artesian wells close to the water treatment plants, allowing an increase of 39 liters per second to the supply network.

In Governador Valadares, Minas Gerais, in addition to the three water treatment plans which serve the municipality, Samarco has provided a mobile plant to help in the treatment and resumption of supply, in addition to a water main of 2.7 km. A system for alternative intake from the Suaçui Grande river was built, to prevent any potential interruption in water supply resulting from the dam accident.

In Baixo Guandu, Espírito Santo, the Company supplied material and technical support to SAAE and the local administration, in the installation of three water intake lines to the water treatment plant on the Guandu River.

Galileia (MG), Resplendor (MG) and Regencia (ES) also had artesian wells drilled by Samarco.

30March 24th 2016

MONITORINGOF WATER QUALITY Samarco has a comprehensive plan to monitor fresh and marine water with the supervision of various authorities involved in the matter. There are 118 water monitoring points along the river Doce and in the ocean.

Over 150,000 parameters of the quality of water and sediments, distributed in more than 13,000 reports, have already been analyzed. These reports are used by the Samarco to map the evolution of the quality of water and sediments in the region of the basin of the Doce River, and generate information for decision making, regarding the actions of environmental recovery and mitigation of the effects of the accident. In addition, the reports are sent to all environmental bodies that request information. A team with 332 workers, including direct employees and contractors, act directly at that work front.

31March 24th 2016

FAUNA AND FLORA

Animal rescueAnimals of different species have been rescued from the affected areas. They have been receiving daily care from Samarco professionals, NGOs and outsourced companies, as well as proper nourishment and veterinary assistance. Many of the animals have already been identified by their owners and taken home. Others will temporarily stay at the shelters provided by the Company, always under specialized care.

For emergency purposes, the Company provided a shelter in the urban zone of Mariana to house some animals, as well as a warehouse in Antonio Pereira to store consumables, feed, sawdust and gravel, in addition to a farm for boarding large animals. Samarco supplies all the necessary logistics to support the transfer of the animals for treatment in specialized clinics when needed, as well as vehicles with drivers to help rescue animals. Samarco also provides personal protection equipment such as rubber boots, vests and helmets, and also manpower for security and cleaning services, in addition to office material.

Another action also being carried out is the distribution of consumables (corn, cornmeal, feed, silage, salt, etc.) to almost 3,000 animals which are staying at farms in Bento Rodrigues, Barra Longa, Bicas, Camargos, Gesteira, Guerra, Paracatu de Baixo, Pedras, Ponte do Gama, Santo Antônio de Pedras, Barretos and Campinas, pursuant to the roster of producers prepared by the Mariana administration, through the Agriculture Secretariat.

32March 24th 2016

On 18 December, Samarco signed the Preliminary Term of Commitment (TCP) with the Public Prosecution Service of Minas Gerais to formalize the actions focused on care with animals. The document confirmed the effort that has been made in conjunction with various associations and volunteers. The information obtained during a fly-over will allow the creation of a video to serve as input for possible new rescue actions and attention to isolated animals.

As provided in the TCP, the Company will formalize, within a period of 45 days, a plan for the establishment, care and rescue of animals. Specialized professionals are already working on this and are assuring proper care, including behavioral and psychological, stimulating the natural behaviors of each species.

For the animals in the shelter, Samarco is making long term plans to seek a definitive home for them, either finding their owners or putting them up for adoption

Rescued animals

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33March 24th 2016

Sonar · A study performed by a specialized consultancy firm, ACQUA Consultoria, confirms that there are still fish, both individuals and shoals, living in the Doce River.

· The study was carried out between December 3-11, 2015, focusing on 215 points along the water way, and evaluating 20 sections of the river between the mouth of the Doce River and the dam of the Risoleta Neves hydropower plant.

· The objective was to evaluate the existence of fish along this stretch of 670 km of the Doce River, taking into account both the areas that were affected by the turbidity plume resulting from the accident in Mariana, and those that were not affected, such as tributaries of the Doce River.

· With sonar attached to a boat with an outboard motor, each one of these sections of the river was inspected adopting a zigzag course, recorded simultaneously with GPS and video (with images of the water column). This method was chosen due to the quick feedback, without any need for capturing or killing any fish.

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Sonar confirms the existence of fish along the Doce River 

34March 24th 2016

Fish and crustaceansAs a preventive action, species of fish and crustaceans from the regions of Baixo Guandu, Colatina, Linhares and Aimorés were rescued and taken to other waterways, with characteristics similar to those of their original habitat.

Aqua Ambiental, a firm specialized in environmental monitoring, and the Instituto de Pesquisa e Reabilitação de Animais Marinhos (IPRAM), engaged by Samarco, have collected 2,308 species between Linhares and Baixo Guandu.

In Aimorés, work is being carried out by Brandt Meio Ambiente, in the form of specialized consultancy in environmental programs and studies, responsible for the rescue of an additional 244 species.

After the collection of the fish, the companies are performing technical work such as the cataloguing and identification of native and exotic species.

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