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FRIDAY, MAY 3

Virtual Technical Course 1 | Free Access for Registered to The Congress

10:00

Approach to The Social Closure of Mines: Challenges and Opportunities Francisca Rivero, Nigel Wight, Katrina Matamala, Dante Choque, Camila Cabrera and Catalina Bravo, SMI-ICE Chile

MONDAY, MAY 6

Virtual Technical Course 2 | Free Access for Registered to The Congress

15:00

Heritage in Mining Closure Contexts Pablo Andrade, USACH, Chile; and María Angélica Martínez, Pontificia Universidad Católica de Chile

TUESDAY, MAY 7

Virtual Technical Course 3 | Free Access for Registered to The Congress

15:00

Moving Towards Passive Mine Closure Douglas Aitken, Felipe Saavedra, Daniela Gamboa and Jacques Wiertz, SMI-ICE Chile; Claudia Ortiz, USACH, Chile; Yasna Tapia, Universidad de Chile; Carolina Parodi, Metropolitan Technological University; Peter Erskine, University of Queensland, Australia; and Oliver Maurer, WSP and Red NICOLE Latin America

Session 1: Technical and Economical Risk Assessment

Chair: Marcela CurottoGeochemistry and Mine Closure Discipline Leader, SRK Consulting, Chile

14:00

Day 1 Program Update

14:10

What Doesn’t Kill the Project, Makes it Stronger: Learning from Failure in Mine Closure Resa Furey, Phillip Crouse and Andrew Watson, Stantec, USA; and Cristian Marambio, Stantec, Chile

14:30

Enhancing Closure Plan Resilience: A Case Study on the Application of HAZOP Risk Analysis Jessica Duarte and Karine Basto, Pimenta de Ávila, Brazil

14:50

Use of Closure Provision to Enable Optimized Closure Outcomes: Escondida Experience Carlos Correa, Minera Escondida, BHP, Chile

15:10

Improving Mine Closure Estimates and Financial Provisions Troy Dunow, Turner & Townsend, Canada

15:30

Risk Assessment in Mine Closure: Key Considerations for Proper Planning Jorge Campos, Ager Consultoría, Chile

Session 2: Rehabilitation and Post Closure Land Uses

Chair: Marcelo ZepedaBiodiversity and Closure Senior Lead, Teck Resources, Chile

14:00

Day 1 Program Update

14:10

Planning for Post -Mining Geomorphic Final Landforms Cameron Voss and Lachlan Yeldham, 3D Data Guidance, Australia

14:30

Land Use Prospects in Post-Mining Scenarios and The Process of Identifying Alternatives Nereyda Loza and Osvaldo Aduvire, SRK Consulting, Peru

14:50

A Well-done Mining Closure Plan: A Project Where the Mining and Agroindustry Sectors Came Together for Benefitial Growth Alexandra Greidinger and Olga López, Gravillera Albania, Colombia

15:10

Transfer of Auxiliary Facilities as Sustainable Closure Alternative in Peru Giselle Vera, Ausenco, Peru

15:30

Title to be Confirmed Speaker to be Confirmed

Session 3: Social Aspects and Stakeholders Engagement

Chair: Marcela CubillosProject Coordinator, Gestiona Consultores, Chile

16:10

The Challenges of Social Investment Planning in Scenarios of Mine Closure Daniela Rubilar, Camila Cabrera, Catalina Bravo, Francisca Rivero and Nigel Wight, SMI-ICE Chile

16:30

Participatory Social Closure Planning as A Tool for Community Development and Positive Legacy Sebastián Urresta and Casey Luongo, Socionaut, Mexico; and Renato Urresta, Socionaut, Panama

16:50

Social Impact Assessment of a Mine’s Life Cycle Christian Belmar, Isidora Morales, Nicolás Araya and Vania Vargas, GDS Consulting, Chile

17:10

Closure, Transition and Legacy from The Kolla Communities in Rinconada, Province of Jujuy, Argentina Edgardo Volpi and Telma Zemplin, SSR Mining Puna, Argentina

Session 4: Cover Systems

Chair: Juan PalmaDirector, Centro de Minería, PUCV, Chile

16:10

Durability of Geosynthetics for Minning Closure Coverage Gustavo Fierro, Tecnología de Materiales, Peru

16:30

A Hybrid Cover System Strategy for The Closure of a Tailings Storage Facility in Brazilian Cerrado Gedeon Junior, Gabriel Mendonça and Alessandro Nepomuceno, Kinross Mining, Brazil

16:50

Sustainable Materials as Covers for The Closure of Tailings Storage Facilities David Rubinos, SMI-ICE Chile

17:10

Review of Antamina Mine Cover System Studies Celedonio Aranda, Sergio Yi Choy and Erika Calmell del Solar, Compañía Minera Antamina, Peru; Michael Milczarek, Jaime Bañuelos, Jason Keller and Iozsef Miskolczi, GeoSystems Analysis, USA

WEDNESDAY, MAY 8

Inaugural Ceremony

18:00

Welcome Words

Mimy Mackenzie, Conference Manager, Gecamin, Chile
Jacques Wiertz, Planning for Closure 2024 Technical Director; Associate Professor, Universidad de Chile
Juan Palma, Planning for Closure 2024 Co-Organizer; Academic, Centro de Minería, PUCV, Chile
Francisca Rivero, Planning for Closure 2024 Co-Organizer, General Manager, SMI-ICE Chile
Hernani Lima, Planning for Closure 2024 Co-Organizer, Professor, Universidade Federal de Ouro Preto, Brazil

18:30

Opening Talk - Transforming the Legacy of Mining: Planning for the Future with Lessons from Teck’s Past Bjorn Weeks, Senior Advisor, Mine Closure, Teck Resources, Canada

Session 5: Closure Standards and Guidelines

Chair: Pamela ValenzuelaProfessor, Centro de Minería, Pontificia Universidad Católica de Valparaíso, Chile

08:50

Day 2 Program Update

09:00

Preparation for Compliance with International Closure Plan Standards Marcelo Zepeda, Teck Resources, Chile

09:20

ICMM´s Closure Maturity Framework Overall Results in Chilean Assets Marcela Cubillos, Gestiona Consultores, Chile

09:40

Holistic Approach to Redefine Mine Closure Plan Ricardo Camargo, Vivian Sanches and Alessandro Lopes, ERM, Brazil

10:00

First Functional Prototype of The Online Platform “Tailing Closure” For Assessing Physical Stability of Tailings Storage Facilities

Vinicius Minatogawa, Gabriel Villavicencio, José García and Gabriel Hermosilla, PUCV, Chile; Gonzalo Suazo, UTFSM, Chile; Pierre Breul, Université Clermont Auvergne, France; and Andrés León, Luis Briceño, Ricardo López and Gabriel Valdés, Sernageomin, Chile

Session 6: Chemical Stability

Chair: David RubinosScientific Leader, SMI-ICE Chile

08:50

Day 2 Program Update

09:00

WRSF Landform Design Considerations to Reduce the ML/ARD Risk of Facilities in the Andes Mountains Greg Meiers, Mine Closure Management, Canada; Juliana Esper, BHP, Chile and Paul Weber, Mine Waste Management, New Zealand

09:20

Passive Treatment of Sulfate-Rich Waters Derived from AMD Juliana Esper, BHP, Chile; Virginia Ciminelli, Universidade Ferderal de Minas Gerais, Brazil; Leonardo Navarro, Mine Waste Management, New Zealand and Greg Meiers, Mine Closure Management, Canada

09:40

Chemical Stability Management for Closure: Using Geostatistics in Decision Making Sebastián García, Vasty Zamorano, Alonso Vargas and May-Lin Almendras, Arcadis, Chile

10:00

AMD Mitigation by Waste Rock Relocation and Mine Flooding: The Ronneburg Mining Site Ulf Barnekow, Marcel Roscher, Robert Sieland and Michael Paul, Wismut, Germany

THURSDAY, MAY 9

Plenary Session 1

Chair: Kim FergusonDirector Mine Closure (Global), WSP, Canada

11:00

How to Deal with an Early and Unexpected Closure? Alejandro Chambi, Environmental Manager, First Quantum Minerals, Panama

11:30

Challenges of Temporary Closure of a Mining Operation Sandra Moreira, Manager Major Permits & Closure, Cerro Colorado, BHP, Chile

Plenary Session 2

Chair: Natalia GiménezSustainability and Environment Manager, Minera Exar, Argentina

12:20

Ventanas Smelter Closure Key points Claudio Flores, Change and Transformation Management Manager, Ventanas Division, Codelco, Chile

12:50

State of the Art of Dismantling Methodologies in the World Michel Chait, General Manager, Flesan Minería, Chile

Session 7: Mine Closure Management and Governance

Chair: Francisca RiveroGeneral Manager, SMI-ICE Chile

14:50

Certification of Closure Projects and PAM Approach to Environmental Expertise Ruy Guillermo and John Melgarejo, Buenaventura Mining Company, Peru

15:10

New Approaches to Mine Closure John Melgarejo, Buenaventura Mining Company, Peru

15:30

QB2 Project Permit Management and Closure Plans Cecilia Adasme and Arturo Mejías, Teck Resources, Chile

15:50

Building a Closure Vision at One of Teck’s Operations in Chile Marcelo Zepeda, Teck Resources, Chile; Marcela Cubillos, Independent Mine Closure Consultant, Chile; and Lilian Valdebenito, SRK Consulting, Chile

16:10

Prioritization of Criteria Used to Operate for Mine Closure Isabela Diniz, Alessandro Resende and Paulo Ribeiro, Vale, Brazil

*AUTHOR UNABLE TO PRESENT. PAPER PUBLISHED IN PROCEEDINGS

Session 8: Revegetation and Phytostabilization

Chair: Humberto RivasCorporate Director Environmental Management, Codelco, Chile

14:50

Evaluation of Native Colonising Species for Revegetation of Mining Waste Deposits in Central Chile Patricio Olivares, Carolina Vargas, Oscar Fernández and Andrés López, Ausenco, Chile; and Juan Pedro Otárola, Minera Florida, Chile

15:10

Monitoring of Progressive Closure Areas through Remote Sensing and NDVI Vegetation Indexes Iván Salas and Abdhiel Bustamante, Hudbay, Peru

15:30

Nature-Based Solutions for the Closure and Rehabilitation of Metal(loid)-Contaminated Mining Land María Paz Valenzuela, David Rubinos, Daniela Gamboa, Dilan Campos, Felipe Saavedra, SMI-ICE-Chile; and Barry Noller and Mansour Edraki, Centre for Mined Land Rehabilitation (CMLR), Sustainable Minerals Institute, The University of Queensland, Australia

15:50

Mitigating Uncertainties from Closure Planning: Experimental Method for Validation and Optimization of Erosion Control and Revegetation in Iron Ore Tailings Julia Diana, Ricardo Almeida, Ricardo Lessa and Alexandre Pena, WSP, Brazil and Gabriel Kruschewsky, Fundação Renova, Brazil

16:10

Phytostabilization Potential of Native Plants Species in Soils Impacted by Mining Activities Pablo Bustos, María Paz Valenzuela, Daniela Gamboa, Dilan Campos, David Rubinos and Felipe Saavedra, SMI-ICE Chile

Session 9: Closure Plan Design and Assessment

Chair: Andrés LópezEnvironmental Planning & Ecology Manager, Ausenco, Chile

17:00

Assessment of Extreme Precipitation Events under Climate Change Scenarios in Search of a Resilient Closure Design Camila Loyola, Ignacio Toro, Ricardo González and Susana Robles, WSP, Chile

17:20

Design Methodology for Mine Closure Covers with Geosynthetics Gustavo Fierro, Tecnología de Materiales, Peru

17:40

Geographic Information Systems and Web Viewer Implementation in the Management and Closure Planning of the World’s Largest Copper Producer, Escondida Mauricio González and Yeraldy Díaz, Minera Escondida, BHP, Chile

18:00

Title to be Confirmed Speaker to be Confirmed

Session 10: Progressive Mine Closure

Chair: Carolina del ValleEnvironmental Manager, Cerro Negro, Newmont, Argentina

17:00

Partial Closures in Chile and the Advantages of their Application Carolina Escudero, Amir Jacob and Marcela Cubillos, Gestiona Consultores, Chile

17:20

Progressive Mine Closure: Reclamation of a Copper Mine Waste Pile in The North of Brazil Bruna Costa, Schweyka de Oliveira and Larissa Bargoena, Vale Base Metals, Brazil

17:40

Transfer and Adaptability of Wetlands for The Environmental Viability of The Mining Project in Peru Julio César and Marisela Huamán, JCI Ingienería y Servicios Ambientales, Peru

18:00

Enhancing Copper Extraction in Heap Leach Pile for Sustainable Mine Closure Using BioSulphide Oscar López, Pablo Bellalta and Francis Gantley, BQE Water, Chile

Session 11: Economic Evaluation and Funding of Closure Plans

Chair: César MontesMine Closure Lead, Newmont, Mexico

08:50

Day 3 Program Update

09:00

The Use of Closure Plans and Closure Costs as A Modifying Factor to Convert Mineral Resources to Mineral Reserves Leonardo Leite and Thiago Toussaint, SRK Consulting, Brazil

09:20

Management of Mining Liabilities: The Practical Case of Serrinha Mine – MG/Brazil Débora Schaper, Wemerson Militão and Leticia Pires, Vale, Brazil

09:40

Asset Management at Closure: Progressive Closure, Closure Provisions and Financial Guarantees David Pérez, SRK Consulting, Chile

10:00

Systematization of Information as A Tool for Control, Planning and Economic Evaluation of Closure Works John Melgarejo, Ruy Guillermo and Iván Ibarra, Buenaventura Mining Company, Peru

10:20

Systematization Proposal for Mine Closure Plans Update Based on Portfolio Management Tools Fernanda Guabiroba, Anglogold Ashanti, Brazil and Samira Sestari Nascimento, University of Sao Paulo-ESALQ, Brazil

Session 12: Closure of Tailing Deposits

Chair: Hugo QuelopanaEngineering Manager, Gestiona Consultores, Chile

08:50

Day 3 Program Update

09:00

Tailings Storage Facilities Closure: Threats and Challenges Jacques Wiertz, Dilan Campos, David Rubinos and Felipe Saavedra, SMI-ICE Chile

09:20

Closure Planning for Tailings Storage Facility: Case Study of Planned Test Cells and Their Instrumentation Gabriela Prinz, Ana Albuquerque, Ricardo Lessa, Igo Tavares and Antônio Freitas, WSP, Brazil and Fernanda Guabiroba, AngloGold Ashanti, Brazil

09:40

Hydraulic Dewatered Stacking (HDS): The Legacy Benefit Related to A Faster and More Value-Accretive Closure of Tailings Facilities Andrea López, Anglo American, Chile; and Phil Newman, Anglo American, UK

10:00

Analysis of Closure Alternatives for Wind Erosion Control for Four Tailings Storage Facilities in Central and Northern Chile Anna Llenas and Adolfo Andrade, WSP, Chile; and Fernando Junqueira, WSP, Canada

10:20

Evaluation of Wind Erosion in Tailings Storage Facilities for The Control of Dust Emission in The Closure Stage

Pamela Valenzuela and Juan Palma, Centro de Minería, Pontificia Universidad Católica de Valparaíso, Chile

FRIDAY, MAY 10

Plenary Session 3

Chair: Jacques WiertzAcademic, Universidad de Chile

11:20

The Social, Environmental and Chemical Mine Closure at Cerro de San Pedro, Carried Out by Minera San Xavier Marisol Barragán, General Director, Minera San Xavier, New Gold, Mexico

11:50

Mine Waste Transformation through Characterization: Unlocking Circular Economy Opportunities for The Mining Sector Anita Parbhakar-Fox, Group Leader - Mine Waste Transformation through Characterization, Sustainable Minerals Institute, The University of Queensland, Australia

12:20

Opportunities for Progressive Closure of Underground Mines in Cerro Negro, Argentina

Carolina del Valle, Federico González and Alejandro Ojeda, Cerro Negro, Newmont, Argentina

Session 13: Mining Companies’ Perspective

Chair: Erika CalmellEnvironmental Planning Manager, Antamina, Peru

14:20

Climate Change in the Design of Closure Measures: Cerro Colorado Case Luisa Cares and Francisca Arriagada, Pampa Norte, BHP, Chile; and Sandra Moreira, BHP, Chile

14:40

Effective Mine Closure Governance: The Vital Role of the Mine Closure Committee in a Successful Site Relinquishment Santiago Alcázar, Minsur, Peru

15:00

Title to be confirmed Speaker to be Confirmed

Session 14: Technical and Economic Aspects of Closure

Chair: Hernani LimaProfessor, Universidade Federal de Ouro Preto, Brazil

14:20

Unit Costs Dispersion Analysis in Regulatory Closure Plans Braulio Osses, Stephane Herrera and Lilian Valdebenito, SRK Consulting, Chile

14:40

Advanced Geophysics in Support of Mine Closure Plans and Management of Mining Environmental Liabilities Sergio Labbé, VEOLIA, Chile

15:00

Experiences of Mine Closure Cover with Geosynthetic in Peru Rainer Lagos and Gustavo Fierro, Tecnología de Materiales, Peru

Closing Ceremony and Farewell Toast

15:20

Congress Balance and Final Comments

Mimy Mackenzie, Conference Manager, Gecamin, Chile
Jacques Wiertz, Planning for Closure 2024 Technical Director; Associate Professor, Universidad de Chile
Bjorn Weeks, Planning for Closure 2024 Chair, Senior Advisor, Mine Closure, Teck Resources, Canada

Poster Session

Abandoned Mine Tailings in Chile: Health Risk Assessment and Environmental Management Simón Burgos and Patricia Matus, Universidad de Los Andes, Chile

Analysis of Soil Remediation Techniques in Copper Mining Fernanda López, Geralynd Munizaga, Valentina Duarte, Universidad de La Serena, Chile; and Denisse Duhalde, Universidad de Concepción, Chile

The Effect of Precipitation on Mining Closure Covery with Geosynthetics

Bruna Todescan, TDM Geossintéticos, Brazil; and Gustavo Fierro, Tecnología de Materiales, Peru