Centinela - Site Visit December 7 th 2016 Luis Sánchez Chief Operating Officer
Cautionary statement This presentation has been prepared by Antofagasta plc. By reviewing and/or attending this presentation you agree to the following conditions: This presentation contains forward-looking statements. All statements other than historical facts are forward-looking statements. Examples of forward-looking statements include those regarding the Group's strategy, plans, objectives or future operating or financial performance; reserve and resource estimates; commodity demand and trends in commodity prices; growth opportunities; and any assumptions underlying or relating to any of the foregoing. Words such as “intend”, “aim”, “project”, “anticipate”, “estimate”, “plan”, “believe”, “expect”, “may”, “should”, “will”, “continue” and similar expressions identify forward-looking statements. Forward-looking statements involve known and unknown risks, uncertainties, assumptions and other factors that are beyond the Group’s control. Given these risks, uncertainties and assumptions, actual results could differ materially from any future results expressed or implied by these forward-looking statements, which speak only as of the date of this presentation. Important factors that could cause actual results to differ from those in the forward-looking statements include: global economic conditions; demand, supply and prices for copper; long-term commodity price assumptions, as they materially affect the timing and feasibility of future projects and developments; trends in the copper mining industry and conditions of the international copper markets; the effect of currency exchange rates on commodity prices and operating costs; the availability and costs associated with mining inputs and labour; operating or technical difficulties in connection with mining or development activities; employee relations; litigation; and actions and activities of governmental authorities, including changes in laws, regulations or taxation. Except as required by applicable law, rule or regulation, the Group does not undertake any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Certain statistical and other information about Antofagasta plc included in this presentation is sourced from publicly available third party sources. Such information presents the views of those third parties and may not necessarily correspond to the views held by Antofagasta plc. This presentation is for information purposes only and does not constitute an offer to sell or the solicitation of an offer to buy shares in Antofagasta plc or any other securities in any jurisdiction. Further it does not constitute a recommendation by Antofagasta plc or any other person to buy or sell shares inAntofagasta plcor anyother securities. Past performancecannot be reliedon as a guide to futureperformance. 2
Key Messages Focus on Creating long Emphasis on cost and Positioned term value Leaders in profitable operational for growth through innovation tonnes reliability Sustainability • • • • • Only profitable Rebase costs Advance New History of production organic growth community innovation • Protect margins projects for engagement • • Every tonne Enables • Planning and approval model must make an sustainability forecasting • • earnings Robust balance Social licence to and lower costs contribution sheet operate or grow • Embedded practice 3
Agenda Operational Growth Overview Sustainability Review Opportunities 4
Safety first -24 months with zero fatalities Safety Performance • Committed to zero fatalities • Similar LTIFR compared to last year • 4 New safety and occupational health model being extended to contractors 1.40 1.00 0.80 0.90 • Regular senior management site visits to 1 0 0 reinforce Safety First 2013 2014 2015 Q3 YTD 2016 (1) Fatalities LTIFR Focus Areas 1. Lost Time Injury Frequency Rate High Potential Accident vs Near Miss (Leading Indicators) • Identify and assess fatality and serious injury 160 60 risks 51.0 140 50 • Implement critical controls 120 40 • Report and investigate near misses 100 HP Near- Miss Index # HP Incidents 80 30 117 • On-the-ground safety verification by senior 60 20 leadership 71 64 64 40 60 49 40 10 20 29 13 18 10 10 10 9 8 8 4 5 0 0 High Potential (HP) Incidents: Total number of HP accidents and HP Near misses Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 Sep-16 *Near -miss index : Represents total number of high potential near misses for every HP Accidents HP Near Miss million hours worked. Target HP Near Miss Index 2016 HP Near Miss Index 2016 (Q3) *Near -miss index Target 2016: 17 5
Overview 6
Centinela overview • Ownership structure Centinela – 70% Antofagasta – 30% Marubeni Corp. Cu Cu C1 • History Conc. Cath. – Merged El Tesoro and Esperanza in 2014 – El Tesoro started production in 2001, Esperanza in 2011 Santiago YTD Q3 016 YTD Q3 016 YTD Q3 2016 Production (t) Production (t) (c/lb) • Location – 1400km north of Santiago 120,900 39,300 135 • Facilities overview – 4 open pits mined Guidance 2016 Guidance 2016 Guidance 2016 – 2 plants (concentrates & cathodes) Production (t) Production (t) (c/lb) • Production 175,000 - 60,000 - 130 – Copper concentrate and cathode 185,000 65,000 producer – Significant by-product gold 7
Centinela Team Denotes presence André at presentation Sougarret Chief Executive Officer Fabian Suez Sustainability Manager Juan Luis Cristian Palacios Fadic Safety and Maintenance Occupational Manager Health Manager Rodolfo Diego Rodrigo Ignacio Luis Navarro Arrigorriaga Salinas Muñoz Sanchez Resource, Chief Financial Human Resources Projects Chief Operations Planning and Officer Manager Officer Manager Development Manager Patricio Carlos Luis Juan Carlos Cesar Troncoso Espinoza Pizarro Villarroel Jimenez District Mine Concentrator Hydrometallurgical Port Development Manager Plant Manager Plant Manager Manager Manager 8
Location Map Calama Antucoya Muelle ESP Port Sierra Gorda Town Water pipeline Centinela San Pedro Mejillones de Atacama Located in the II Region, 30 km from Sierra Gorda town Antofagasta (200 km from Antofagasta / 100 km from Calama) 9
Site visit Algarrobo Camp Cathode Plant ← Ripios Tesoro Noreste Pit Tesoro Central Pit Mirador Pit ← ROM Esperanza Pit ← Tailings Deposit ← Primary Crusher Concentrator Plant Chañar Camp 10
Development of Centinela Centinela established Molybdenum Plant - first production Integrated planning and operations Mo recovery from concentrates Sharing best practices and facilities US$125 million Increasing productivity and cost efficiency DMC Esperanza - First MOLY production 2018+ 2017 CEN 2014 Enc. El Tesoro - First Oxides Production 2013 Second concentrator. ESP Earliest construction start 2011 US$2,7 billion (PFS Encuentro Oxides - First estimate) production Debottlenecking concentrator US$636 million throughput to 105 ktpd Thickened tailings MET 2001
Reserves and Resources As of 31 Dec 2015. Resources include measured + indicated + inferred. DMC - Oxides DMC - Sulphides 720 Mt @ 0.43% Cu Mirador Oxides 5,980 Mt @ 0.38% Cu Tesoro 31% 42% Mirador Sulfuros 58% 69% Esperanza Esperanza Sur Paleo Canal / Llano Additional Resources Ore Reserves Encuentro Oxides Tonnage Copper Moly Gold Resources CEN+OXE (Mt) (%) (%) (g/tonne) Sulphides 3215.7 0.38 0.012 0.13 Encuentro Sulfuros Oxides 517.2 0.43 Total (1) 3732.8 0.39 Penacho Blanco Tonnage Copper (1) As of 31 Dec 2015. Includes 2,144.6 Additional DMC Mt of Ore Reserves: Resources (Mt) (%) • CEN+OXE Sulphides includes Esperanza and Esperanza Sur Ore Sulphides 2761.9 0.38 Reserves: 1,840.4 Mt @ 0.44% Polo Sur • CEN+OXE Oxides includes Mirador Oxides 203.7 0.42 Oxides, Tesoro + ROM and Encuentro Oxides Ore Reserves: 304.2 Mt @ Total 2965.7 0.38 0.48% 12
Centinela’s challenge …aiming to be an operation of the future capturing Our strategy focuses on harnessing synergies while the full potential and value of the Centinela District balancing growth and productivity… Taking advantage of opportunities to defend our competitive position and leverage our Full growth opportunities to realise the full potential potential of the District of the District Size Current situation Continuous Growth Improvement opportunities Competitiveness 13
Centinela’s 3 step development path • Ramp-up 2 nd Concentrator • Successful completion of • Prepare for Phase 2 Encuentro Oxides and • Operating at 105 ktpd Expansion Project Moly projects capacity • Progress feasibility of • Achieve cost reduction • Achieve cost reduction other mineral resources targets targets eg. Polo Sur • Comply with mine • Commissioning thickener development plan • Comply with mine • Prepare for future growth development plan 2020+ 3 2017-2019 2 2016 Unlock the value of the 1 Optimisation and Achieving steady state District preparing for growth with new capacity Sustainable management Establishing and maintaining high-performance management (Company Values, Risk Management Model, Safety Model and Operational Model) 14
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