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The MetPlant 2019 conference program is available below.
To view the abstract for each presentation, please click on the talk title, then click on the Abstract PDF link.

The program is subject to change at any time at the discretion of the organising and technical committee.


Sunday, September 8, 2019

4:20 PM - 6:00 PM
GD Delprat Distinguished Lecture - J.P. Franzidis
6:00 PM - 7:00 PM
MetPlant Welcome Reception - Sponsored by Glencore Technology

4:20 PM - 6:00 PM
GD Delprat Distinguished Lecture - J.P. Franzidis
6:00 PM - 7:00 PM
MetPlant Welcome Reception - Sponsored by Glencore Technology


4:20 PM - 6:00 PM
GD Delprat Distinguished Lecture - J.P. Franzidis
6:00 PM - 7:00 PM
MetPlant Welcome Reception - Sponsored by Glencore Technology



Monday, September 9, 2019

8:30 AM - 8:50 AM
Conference Opening


Welcome from the Convenor
Janine Herzig, MetVal Consulting Pty Ltd

Official Conference Opening
Stephen Durkin, AusIMM
8:50 AM - 9:20 AM
Keynote Presentation 1: John Vagenas, Metallurgical Systems


The Stages of Digital Transformation
John Vagenas, Metallurgical Systems
9:20 AM - 10:00 AM
Session 1: Transformational Case Studies



Application of a Net Smelter Return Model within a Polymetallic Base Metal Processing Plant
William Downie, MMG

Nyrstar Port Pirie Transformation, Commissioning and Ramp-Up
William Watt, Nyrstar Port Pirie Smelter
10:00 AM - 10:15 AM
Q&A - Transformational Case Studies
10:15 AM - 10:45 AM
Day 1 - Morning Tea & ePoster presentations


Real Time Copper Concentration Monitoring for an Electro Winning Plant
Darren Hill, Mipac Pty Ltd

The Operator Portal
Chris Knowles, McLanahan Corporation
10:45 AM - 11:20 AM
Keynote Presentation 2: Greg Lane, Ausenco


Lessons Learnt from Smaller Projects Applied to Big Projects – Surely it Must be Easy?
Greg Lane, Ausenco
11:20 AM - 12:20 PM
Session 2: Plant Design I



Grinding Circuit Design for the Carrapateena Concentrator
Mark Weidenbach, OZ Minerals

Maximising Process Plant Engineering Efficiency Through Effective Vendor Data Management
Ben Strong, Ausenco

Improved Recovery through Changes in Operating Philosophies at IGO’s Nova Operation
Zachary Hearne, Independence Group NL
12:20 PM - 12:40 PM
Q&A - Plant Design I
12:40 PM - 1:40 PM
Day 1 - Lunch & ePoster presentations



On-Stream Mineral Analysis for Process Control and Optimisation
Joel O'Dwyer, CSIRO

Methodology for Assessing Benefits of Grind-Control Using PST Technology for True On-Line Particle Size Measurement
John Viega, CiDRA Minerals Processing

Effect of Alkaline Type in Controlling Interfacial Chemistry, Rheology and Leaching Behaviour of Gold Concentrates
Richmond Asamoah, Future Industries Institute, University of South Australia
1:40 PM - 2:10 PM
Keynote Presentation 3: Joe Pease, Mineralis


Mining Silicon Valley
Joe Pease, Mineralis Consultants Pty Ltd
2:10 PM - 2:50 PM
Session 3: Plant Design II



Fast-tracking Bald Hill Lithium: Integrated Design-Construct-Operate Strategies
Graham Arvidson, Primero Group

A Simple Recipe Guide to Gravity Concentration
Duncan Bennett, Mineralis Consultants Pty Ltd

Porgera Post Earthquake Learnings
Robert Jr Palme, Porgera Joint Venture
3:10 PM - 3:25 PM
Q&A - Plant Design II
3:25 PM - 3:55 PM
Day 1 Afternoon Tea & Exhibition
3:55 PM - 4:25 PM
Keynote Presentation 4: John Ralston, UniSA


Interfacial Science – a Critical Enabler in Hydrometallurgy and Mineral Processing
John Ralston, University of South Australia
4:25 PM - 5:25 PM
Session 4: Flotation and Surface Chemistry



Metallurgical Improvements at Northparkes Concentrator through the Application of High Chrome Grinding Media
Christopher Greet, Magotteaux Australia Pty Ltd

Leinster Nickel Concentrator – Flotation Circuit Upgrade
Patrick Hassett, BHP Nickel West Leinster

Large Mechanical Flotation Cells – Advantages and Scale-Up Considerations
Michael Walshe, Outotec
5:25 PM - 5:40 PM
Q&A - Flotation and Surface Chemistry
5:40 PM - 5:45 PM
Day 1 Closing Remarks
5:45 PM - 7:00 PM
Networking Drinks
7:00 PM - 10:00 PM
Conference Dinner

8:30 AM - 8:50 AM
Conference Opening


Welcome from the Convenor
Janine Herzig, MetVal Consulting Pty Ltd

Official Conference Opening
Stephen Durkin, AusIMM
8:50 AM - 9:20 AM
Keynote Presentation 1: John Vagenas, Metallurgical Systems


The Stages of Digital Transformation
John Vagenas, Metallurgical Systems
9:20 AM - 10:00 AM
Session 1: Transformational Case Studies



Application of a Net Smelter Return Model within a Polymetallic Base Metal Processing Plant
William Downie, MMG

Nyrstar Port Pirie Transformation, Commissioning and Ramp-Up
William Watt, Nyrstar Port Pirie Smelter
10:00 AM - 10:15 AM
Q&A - Transformational Case Studies
10:15 AM - 10:45 AM
Day 1 - Morning Tea & ePoster presentations


Real Time Copper Concentration Monitoring for an Electro Winning Plant
Darren Hill, Mipac Pty Ltd

The Operator Portal
Chris Knowles, McLanahan Corporation
10:45 AM - 11:20 AM
Keynote Presentation 2: Greg Lane, Ausenco


Lessons Learnt from Smaller Projects Applied to Big Projects – Surely it Must be Easy?
Greg Lane, Ausenco
11:20 AM - 12:20 PM
Session 2: Plant Design I



Grinding Circuit Design for the Carrapateena Concentrator
Mark Weidenbach, OZ Minerals

Maximising Process Plant Engineering Efficiency Through Effective Vendor Data Management
Ben Strong, Ausenco

Improved Recovery through Changes in Operating Philosophies at IGO’s Nova Operation
Zachary Hearne, Independence Group NL
12:20 PM - 12:40 PM
Q&A - Plant Design I
12:40 PM - 1:40 PM
Day 1 - Lunch & ePoster presentations



On-Stream Mineral Analysis for Process Control and Optimisation
Joel O'Dwyer, CSIRO

Methodology for Assessing Benefits of Grind-Control Using PST Technology for True On-Line Particle Size Measurement
John Viega, CiDRA Minerals Processing

Effect of Alkaline Type in Controlling Interfacial Chemistry, Rheology and Leaching Behaviour of Gold Concentrates
Richmond Asamoah, Future Industries Institute, University of South Australia
1:40 PM - 2:10 PM
Keynote Presentation 3: Joe Pease, Mineralis


Mining Silicon Valley
Joe Pease, Mineralis Consultants Pty Ltd
2:10 PM - 2:50 PM
Session 3: Plant Design II



Fast-tracking Bald Hill Lithium: Integrated Design-Construct-Operate Strategies
Graham Arvidson, Primero Group

A Simple Recipe Guide to Gravity Concentration
Duncan Bennett, Mineralis Consultants Pty Ltd

Porgera Post Earthquake Learnings
Robert Jr Palme, Porgera Joint Venture
3:10 PM - 3:25 PM
Q&A - Plant Design II
3:25 PM - 3:55 PM
Day 1 Afternoon Tea & Exhibition
3:55 PM - 4:25 PM
Keynote Presentation 4: John Ralston, UniSA


Interfacial Science – a Critical Enabler in Hydrometallurgy and Mineral Processing
John Ralston, University of South Australia
4:25 PM - 5:25 PM
Session 4: Flotation and Surface Chemistry



Metallurgical Improvements at Northparkes Concentrator through the Application of High Chrome Grinding Media
Christopher Greet, Magotteaux Australia Pty Ltd

Leinster Nickel Concentrator – Flotation Circuit Upgrade
Patrick Hassett, BHP Nickel West Leinster

Large Mechanical Flotation Cells – Advantages and Scale-Up Considerations
Michael Walshe, Outotec
5:25 PM - 5:40 PM
Q&A - Flotation and Surface Chemistry
5:40 PM - 5:45 PM
Day 1 Closing Remarks
5:45 PM - 7:00 PM
Networking Drinks
7:00 PM - 10:00 PM
Conference Dinner


8:30 AM - 8:50 AM
Conference Opening


Welcome from the Convenor
Janine Herzig, MetVal Consulting Pty Ltd

Official Conference Opening
Stephen Durkin, AusIMM
8:50 AM - 9:20 AM
Keynote Presentation 1: John Vagenas, Metallurgical Systems


The Stages of Digital Transformation
John Vagenas, Metallurgical Systems
9:20 AM - 10:00 AM
Session 1: Transformational Case Studies



Application of a Net Smelter Return Model within a Polymetallic Base Metal Processing Plant
William Downie, MMG

Nyrstar Port Pirie Transformation, Commissioning and Ramp-Up
William Watt, Nyrstar Port Pirie Smelter
10:00 AM - 10:15 AM
Q&A - Transformational Case Studies
10:15 AM - 10:45 AM
Day 1 - Morning Tea & ePoster presentations


Real Time Copper Concentration Monitoring for an Electro Winning Plant
Darren Hill, Mipac Pty Ltd

The Operator Portal
Chris Knowles, McLanahan Corporation
10:45 AM - 11:20 AM
Keynote Presentation 2: Greg Lane, Ausenco


Lessons Learnt from Smaller Projects Applied to Big Projects – Surely it Must be Easy?
Greg Lane, Ausenco
11:20 AM - 12:20 PM
Session 2: Plant Design I



Grinding Circuit Design for the Carrapateena Concentrator
Mark Weidenbach, OZ Minerals

Maximising Process Plant Engineering Efficiency Through Effective Vendor Data Management
Ben Strong, Ausenco

Improved Recovery through Changes in Operating Philosophies at IGO’s Nova Operation
Zachary Hearne, Independence Group NL
12:20 PM - 12:40 PM
Q&A - Plant Design I
12:40 PM - 1:40 PM
Day 1 - Lunch & ePoster presentations



On-Stream Mineral Analysis for Process Control and Optimisation
Joel O'Dwyer, CSIRO

Methodology for Assessing Benefits of Grind-Control Using PST Technology for True On-Line Particle Size Measurement
John Viega, CiDRA Minerals Processing

Effect of Alkaline Type in Controlling Interfacial Chemistry, Rheology and Leaching Behaviour of Gold Concentrates
Richmond Asamoah, Future Industries Institute, University of South Australia
1:40 PM - 2:10 PM
Keynote Presentation 3: Joe Pease, Mineralis


Mining Silicon Valley
Joe Pease, Mineralis Consultants Pty Ltd
2:10 PM - 2:50 PM
Session 3: Plant Design II



Fast-tracking Bald Hill Lithium: Integrated Design-Construct-Operate Strategies
Graham Arvidson, Primero Group

A Simple Recipe Guide to Gravity Concentration
Duncan Bennett, Mineralis Consultants Pty Ltd

Porgera Post Earthquake Learnings
Robert Jr Palme, Porgera Joint Venture
3:10 PM - 3:25 PM
Q&A - Plant Design II
3:25 PM - 3:55 PM
Day 1 Afternoon Tea & Exhibition
3:55 PM - 4:25 PM
Keynote Presentation 4: John Ralston, UniSA


Interfacial Science – a Critical Enabler in Hydrometallurgy and Mineral Processing
John Ralston, University of South Australia
4:25 PM - 5:25 PM
Session 4: Flotation and Surface Chemistry



Metallurgical Improvements at Northparkes Concentrator through the Application of High Chrome Grinding Media
Christopher Greet, Magotteaux Australia Pty Ltd

Leinster Nickel Concentrator – Flotation Circuit Upgrade
Patrick Hassett, BHP Nickel West Leinster

Large Mechanical Flotation Cells – Advantages and Scale-Up Considerations
Michael Walshe, Outotec
5:25 PM - 5:40 PM
Q&A - Flotation and Surface Chemistry
5:40 PM - 5:45 PM
Day 1 Closing Remarks
5:45 PM - 7:00 PM
Networking Drinks
7:00 PM - 10:00 PM
Conference Dinner



Tuesday, September 10, 2019

8:15 AM - 8:20 AM
Day 2 Welcome and Opening Remarks
8:20 AM - 8:25 AM
Welcome from Breakfast Keynote Sponsor - Glencore Technology

8:24 AM - 9:55 AM
Session 5: Keynotes to challenge current thinking
8:25 AM - 8:55 AM
Keynote Presentation 5: Kathy Ehrig, BHP



Effect of Gangue Mineralogy on Flow Sheet Design and Plant Operation – Olympic Dam
Kathy Ehrig, BHP Olympic Dam
8:55 AM - 9:25 AM
Keynote Presentation 6: Aidan Giblett, Newmont Goldcorp


Metallurgical Accounting in Practice: Performance Non-Negotiables
Aidan Giblett, Newmont Goldcorp Corporation
9:25 AM - 9:55 AM
Keynote Presentation 7: Dean David, Wood.


The Definition of Project Success
Dean David, Wood
9:55 AM - 10:20 AM
Q&A - Keynotes to challenge current thinking
10:20 AM - 10:50 AM
Day 2 - Morning Tea & ePoster Presentations


Effect of Cyanide Concentrations on Leaching of Jarosite-Bearing Bio-oxidised Flotation Gold Concentrates
Richmond Asamoah, Future Industries Institute, University of South Australia

High-Velocity Impact Breakage for Lower Energy Consumption by VeRo Liberator® Technique
Gregor Borg, P.M.S. Handelskontor GmbH

Eliminate the Re-torque and Increase Mill Availability
Jeff Rosenberg, Norbar Torque Tools
10:50 AM - 11:50 AM
Session 6: Optimisation of existing operations



Benefits Realised from Retrofitting a Gravity Gold Recovery Circuit
Andrew King, Consep Pty Ltd

Improving Recovery at the Syama Gold Mine
Brett Ascott, Resolute

Optimising Gold Recovery through Staged Oxygen Addition at Newmont Goldcorp Boddington
Paul Petrucci, Newmont Goldcorp Boddington
11:50 AM - 12:10 PM
Q&A - Optimisation of Existing Operations
12:10 PM - 1:10 PM
Day 2 - Lunch & ePoster Presentations


New Reagents for Beneficiation of Lithium Ores
Tim Walsh, Clariant (Australia) Pty Ltd

Improved On-Stream XRF Analysis of Mineral Slurries
Brianna Ganly, CSIRO

Particle size analysis for process control: A new approach with Dynamic Image Analysis.
Matthew Johnson, Metrohm Australia
1:10 PM - 1:40 PM
Keynote Presentation 8: Stephen Morrell, SMC Testing Pty Ltd


How to Formulate an Effective Ore Comminution Characterization Program
Stephen Morrell, SMC Testing Pty Ltd
1:40 PM - 2:40 PM
Session 7: Implementation of technology



Fine Grinding Implementation at the Cracow Gold Processing Plant
Andres Paz, Outotec

Sorting Pilbara Manganese Ores – Do Your Homework and Understand the Mineralogy
Roy Francis, Consolidated Minerals

Making Your Thickener’s Feedwell an Effective Flocculation Vessel – Lessons from the AMIRA P266 Projects
Phillip Fawell, CSIRO Mineral Resources
2:40 PM - 3:00 PM
Q&A - Implementation of technology
3:00 PM - 3:20 PM
Day 2 Afternoon Tea & Exhibition
3:20 PM - 3:45 PM
Keynote Presentation 9: Peter Munro, Mineralis Consultants


Process Innovation and Intellectual Property: Is there really a Business Case?
Peter Munro, Mineralis Consultants Pty Ltd
3:45 PM - 4:25 PM
Session 8: Control Methodologies and Plant Design III



Real Time Measurement and Fast Control Strategies for the Optimal Operation of Grinding Circuits
Randolph Pax, Rap Innovation and Development Pty Ltd

Water Efficiency and Environmental Sustainability Practices at Fresnillo Operations in Mexico
Rodolfo Espinosa Gomez, Mineralis Consultants Pty Ltd
4:25 PM - 4:35 PM
Q&A - CM & Plant Design III
4:35 PM - 4:45 PM
Innovation award presentation

4:45 PM - 4:50 PM
Best paper and best presentation annoucement
4:50 PM - 4:55 PM
Conference close
8:15 AM - 8:20 AM
Day 2 Welcome and Opening Remarks
8:20 AM - 8:25 AM
Welcome from Breakfast Keynote Sponsor - Glencore Technology

8:24 AM - 9:55 AM
Session 5: Keynotes to challenge current thinking
8:25 AM - 8:55 AM
Keynote Presentation 5: Kathy Ehrig, BHP



Effect of Gangue Mineralogy on Flow Sheet Design and Plant Operation – Olympic Dam
Kathy Ehrig, BHP Olympic Dam
8:55 AM - 9:25 AM
Keynote Presentation 6: Aidan Giblett, Newmont Goldcorp


Metallurgical Accounting in Practice: Performance Non-Negotiables
Aidan Giblett, Newmont Goldcorp Corporation
9:25 AM - 9:55 AM
Keynote Presentation 7: Dean David, Wood.


The Definition of Project Success
Dean David, Wood
9:55 AM - 10:20 AM
Q&A - Keynotes to challenge current thinking
10:20 AM - 10:50 AM
Day 2 - Morning Tea & ePoster Presentations


Effect of Cyanide Concentrations on Leaching of Jarosite-Bearing Bio-oxidised Flotation Gold Concentrates
Richmond Asamoah, Future Industries Institute, University of South Australia

High-Velocity Impact Breakage for Lower Energy Consumption by VeRo Liberator® Technique
Gregor Borg, P.M.S. Handelskontor GmbH

Eliminate the Re-torque and Increase Mill Availability
Jeff Rosenberg, Norbar Torque Tools
10:50 AM - 11:50 AM
Session 6: Optimisation of existing operations



Benefits Realised from Retrofitting a Gravity Gold Recovery Circuit
Andrew King, Consep Pty Ltd

Improving Recovery at the Syama Gold Mine
Brett Ascott, Resolute

Optimising Gold Recovery through Staged Oxygen Addition at Newmont Goldcorp Boddington
Paul Petrucci, Newmont Goldcorp Boddington
11:50 AM - 12:10 PM
Q&A - Optimisation of Existing Operations
12:10 PM - 1:10 PM
Day 2 - Lunch & ePoster Presentations


New Reagents for Beneficiation of Lithium Ores
Tim Walsh, Clariant (Australia) Pty Ltd

Improved On-Stream XRF Analysis of Mineral Slurries
Brianna Ganly, CSIRO

Particle size analysis for process control: A new approach with Dynamic Image Analysis.
Matthew Johnson, Metrohm Australia
1:10 PM - 1:40 PM
Keynote Presentation 8: Stephen Morrell, SMC Testing Pty Ltd


How to Formulate an Effective Ore Comminution Characterization Program
Stephen Morrell, SMC Testing Pty Ltd
1:40 PM - 2:40 PM
Session 7: Implementation of technology



Fine Grinding Implementation at the Cracow Gold Processing Plant
Andres Paz, Outotec

Sorting Pilbara Manganese Ores – Do Your Homework and Understand the Mineralogy
Roy Francis, Consolidated Minerals

Making Your Thickener’s Feedwell an Effective Flocculation Vessel – Lessons from the AMIRA P266 Projects
Phillip Fawell, CSIRO Mineral Resources
2:40 PM - 3:00 PM
Q&A - Implementation of technology
3:00 PM - 3:20 PM
Day 2 Afternoon Tea & Exhibition
3:20 PM - 3:45 PM
Keynote Presentation 9: Peter Munro, Mineralis Consultants


Process Innovation and Intellectual Property: Is there really a Business Case?
Peter Munro, Mineralis Consultants Pty Ltd
3:45 PM - 4:25 PM
Session 8: Control Methodologies and Plant Design III



Real Time Measurement and Fast Control Strategies for the Optimal Operation of Grinding Circuits
Randolph Pax, Rap Innovation and Development Pty Ltd

Water Efficiency and Environmental Sustainability Practices at Fresnillo Operations in Mexico
Rodolfo Espinosa Gomez, Mineralis Consultants Pty Ltd
4:25 PM - 4:35 PM
Q&A - CM & Plant Design III
4:35 PM - 4:45 PM
Innovation award presentation

4:45 PM - 4:50 PM
Best paper and best presentation annoucement
4:50 PM - 4:55 PM
Conference close

8:15 AM - 8:20 AM
Day 2 Welcome and Opening Remarks
8:20 AM - 8:25 AM
Welcome from Breakfast Keynote Sponsor - Glencore Technology

8:24 AM - 9:55 AM
Session 5: Keynotes to challenge current thinking
8:25 AM - 8:55 AM
Keynote Presentation 5: Kathy Ehrig, BHP



Effect of Gangue Mineralogy on Flow Sheet Design and Plant Operation – Olympic Dam
Kathy Ehrig, BHP Olympic Dam
8:55 AM - 9:25 AM
Keynote Presentation 6: Aidan Giblett, Newmont Goldcorp


Metallurgical Accounting in Practice: Performance Non-Negotiables
Aidan Giblett, Newmont Goldcorp Corporation
9:25 AM - 9:55 AM
Keynote Presentation 7: Dean David, Wood.


The Definition of Project Success
Dean David, Wood
9:55 AM - 10:20 AM
Q&A - Keynotes to challenge current thinking
10:20 AM - 10:50 AM
Day 2 - Morning Tea & ePoster Presentations


Effect of Cyanide Concentrations on Leaching of Jarosite-Bearing Bio-oxidised Flotation Gold Concentrates
Richmond Asamoah, Future Industries Institute, University of South Australia

High-Velocity Impact Breakage for Lower Energy Consumption by VeRo Liberator® Technique
Gregor Borg, P.M.S. Handelskontor GmbH

Eliminate the Re-torque and Increase Mill Availability
Jeff Rosenberg, Norbar Torque Tools
10:50 AM - 11:50 AM
Session 6: Optimisation of existing operations



Benefits Realised from Retrofitting a Gravity Gold Recovery Circuit
Andrew King, Consep Pty Ltd

Improving Recovery at the Syama Gold Mine
Brett Ascott, Resolute

Optimising Gold Recovery through Staged Oxygen Addition at Newmont Goldcorp Boddington
Paul Petrucci, Newmont Goldcorp Boddington
11:50 AM - 12:10 PM
Q&A - Optimisation of Existing Operations
12:10 PM - 1:10 PM
Day 2 - Lunch & ePoster Presentations


New Reagents for Beneficiation of Lithium Ores
Tim Walsh, Clariant (Australia) Pty Ltd

Improved On-Stream XRF Analysis of Mineral Slurries
Brianna Ganly, CSIRO

Particle size analysis for process control: A new approach with Dynamic Image Analysis.
Matthew Johnson, Metrohm Australia
1:10 PM - 1:40 PM
Keynote Presentation 8: Stephen Morrell, SMC Testing Pty Ltd


How to Formulate an Effective Ore Comminution Characterization Program
Stephen Morrell, SMC Testing Pty Ltd
1:40 PM - 2:40 PM
Session 7: Implementation of technology



Fine Grinding Implementation at the Cracow Gold Processing Plant
Andres Paz, Outotec

Sorting Pilbara Manganese Ores – Do Your Homework and Understand the Mineralogy
Roy Francis, Consolidated Minerals

Making Your Thickener’s Feedwell an Effective Flocculation Vessel – Lessons from the AMIRA P266 Projects
Phillip Fawell, CSIRO Mineral Resources
2:40 PM - 3:00 PM
Q&A - Implementation of technology
3:00 PM - 3:20 PM
Day 2 Afternoon Tea & Exhibition
3:20 PM - 3:45 PM
Keynote Presentation 9: Peter Munro, Mineralis Consultants


Process Innovation and Intellectual Property: Is there really a Business Case?
Peter Munro, Mineralis Consultants Pty Ltd
3:45 PM - 4:25 PM
Session 8: Control Methodologies and Plant Design III



Real Time Measurement and Fast Control Strategies for the Optimal Operation of Grinding Circuits
Randolph Pax, Rap Innovation and Development Pty Ltd

Water Efficiency and Environmental Sustainability Practices at Fresnillo Operations in Mexico
Rodolfo Espinosa Gomez, Mineralis Consultants Pty Ltd
4:25 PM - 4:35 PM
Q&A - CM & Plant Design III
4:35 PM - 4:45 PM
Innovation award presentation

4:45 PM - 4:50 PM
Best paper and best presentation annoucement
4:50 PM - 4:55 PM
Conference close


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