Norsk Hydro Asa · OSL:NHY

Norsk Hydro Asa — Corporate Update (March 2018)

13 slides from Norsk Hydro Asa's corporate update, Mar 15, 2018

  1. Slide 1: Alunorte

    HYDRO Alunorte 15 March, 2018

  2. Slide 2: More than 200 mm of rainfall in 12 hours (16-17 February)

    More than 200 mm of rainfall in 12 hours (16-17 February) Daily rainfall (mm) 200 180 160 140 120 100 80 60 40 The industrial premises 20 inside Alunorte after the 0 heavy rain fall, followed by extensive external inspections 2

  3. Slide 3: Timeline of events

    Timeline of events Brief summary of the Alunorte situation 16-17 February 22 February 23 February 24 February 26 February 28 February 7 March Heavy rainfall and Instituto Evandro Large group of Hydro forms Brazilian minister IBAMA notified Hydro Environmental flooding in Barcarena Chagas reports abo

  4. Slide 4: Barcarena site layout

    Vila Nova Burajuba Barcarena site layout Pará River Water Bom Futuro treatment plant Port Bauxite residue Alunorte deposit DRS1 alumina refinery Bauxite residue deposit DRS2 Albras primary aluminium plant

  5. Slide 5: Schematic of key water streams

    Schematic of key water streams

  6. Slide 6: Known points of interest

    Known points of interest PIPE WITH CRACKS

  7. Slide 7: Flooded area and disused pipes

    Flooded area and disused pipes 7

  8. Slide 8: Discharge through Canal Velho

    Discharge through Canal Velho FLOWS UNDER NORMAL OPERATING CONIDTIONS ADDITIONAL FLOWS AS A RESULT OF EXTREME RAIN EVENT

  9. Slide 9: Summary of incidents

    Summary of incidents # Where What Leakage Content Consequences Bauxite residue deposits 1 No indications of leakage or spill (DRS1 and DRS2) No significant environmental impact Flooded area (Sump 45) Broken sealing in 1 of 5 Surface water that went above normal 2 Surface water from a pH perspective

  10. Slide 10: Hydro has initiated a series of measures to resolve Alunorte situation

    Hydro has initiated a series of measures to resolve Alunorte situation • Appointed CFO Eivind Kallevik interim head of Bauxite & Alumina • Established project to assess and consider further strengthening of the robustness of Alunorte water treatment system • Reviewing the situation: − Established in

  11. Slide 11: Health, water and environmental initiatives in Barcarena

    Health, water and environmental initiatives in Barcarena March 2-13 March 8 Feb 23 Health truck with doctors and Stakeholder engagement Water distribution nurses in collaboration with the initiative, first step. External started municipality. expert in Barcarena March 5 Feb 24 Water distribution Sta

  12. Slide 12: Get the facts on the table

    Get the facts on the table to resolve issues related to Results from internal review Second phase external safe operations for health, and external review phase 1 review to be presented environment, community and to be presented April 9 early May employees 12

  13. Slide 13: Infinite Aluminium Hydro

    INFINITE ALUMINIUM HYDRO

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