SELFRAG’s contribution to Circular Economy

May 21, 2013

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SELFRAG in a nutshell

A new way to break rocks, slags and scrap

SELFRAG History: Swiss company, founded in 2007. Owned by PE firms, management, and institutional/private investors

Principles of Technology: Patented high voltage pulse power technology that fragments or weakens virtually any material. Proven in lab environments and solar silicon manufacturing (continuous 1 ton/h)

Target Market: Continuous 100-1000 ton/h, scalable pre-weakening system for mining and recycling comminution circuits, both greenfield and retrofit. Solution under development

Value Proposition: Significant reduction in comminution, in particular milling, energy consumption and operational costs and increasing efficiency and productivity

19 June 2013

t

~500 ns

HV pulse power technology

Based on a HV physical specificity

At short pulse rise time water isolates more than solids

Discharge occurs through solid, causing strong internal shockwaves resulting in selective breakage

Industrialized and patented

Solid Water

19 June 2013 Page 3

Principles of Technology

High voltage pulses to fragment or weaken virtually any material

U(t) process vessel with electrode

HV pulsegenerator

HV power supply

material in water

HV pulse generator

Process vessel with electrode in water

HV power supply

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Minimize mass flows;

Free-up valuable material at low energy

From mine pit, through life cycle, down to landfill: SELFRAG adds value

19 June 2013

19 June 2013

Step change in mining

1.5% of worldwide electrical energy saving potential

SELFRAG long-term vision:

a paradigm shift

Standard Gravity

Primary crusher

SELFRAG unit

Stirred media mill

Thumbler crusher

Conventional circuit at mine today

Ball mill

Floatation

Ball mill

SAG

Primary crusher

Pebble circuit

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19 June 2013

Step change in Urban Mining

Save significant transport and processing cost

high CO2 releasing

process

high fossil energy usage

transportation impact

transportation impact

landfill impact of waste

material

current value chain

environmental impact and related cost drivers

CO2 certificates / taxes waste / disposal taxes

rawmaterialsextraction

cementproduction

constructionsite

destructionsite

wastedisposal

ground water damage

extraction of non-

renewable resources

transportation impact

aggregate taxes

increasing (non-renewable) energy costs

reduce / eliminate

waste disposal

process / costs

reduce environmental

footprint of the supply

chain by recycling

materials

maintenance

reduce material and

transportation costs

reduce dependency on

supply chain

1 2

3

4

Target SelFrag’sbenefits

SELFRAG Concrete recovery

Extraction of Raw material

Cement Production

Construction site

Demolition

Landfill

Maintenance

• Reduction of CO2 emissions • Reduction of Transport • Reduction pore water damage • Better Energie balance • Increase life time of raw material

Benefits: • Premium price for ecological products • Growth with sustainability Costs: • Lower cost for raw construction material • Lower transport costs • Reduced dependency on supplier and increase

negociation power.

$

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19 June 2013

Step change in E-Scrap processing

Recover more metals and plastics – less burning and less waste

~ 20%

~ 80%

<10%

<3%

<3%

<95%

100%

Printed Circuit Board

Furnace / Smelter

Shredder SELFRAG

Sorting Sorting PCB flakes

Components

Plastics

Components

Precious

Metals Plastics

+ Exhaust treatment

Shredder

Precious

Metals

WIP

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Furnace / Smelter (less landfill costs)

19 June 2013

Only 17 % reduction in strength

Step change in Composite material recycling

Recover and reuse carbon fibers

New helicopter fringe made of new carbon fiber material

Fringe is fragmented with SELFRAG

Fringe is re-built with SELFRAG output fragmented carbon fibers

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19 June 2013 Business update 9

SELFRAG markets supported by the megatrends

Looking for sustainable growth

SELFRAG riding the trends

• scarcity of non renewable natural resources

• Circular economy

• increasing energy prices

• environmental consciousness (customer and laws)

mega-trends

• new technology for e-scrap, construction material, high tech composite material recycling

• fast growing markets • higher production

efficiency • self produced raw material

• 50% energy saving • yield increase • eliminate poluting steps