Typology of different options for metal recycling by Private Sector 3/November/2016 Takanobu Tachikawa DOWA Eco-System Co., Ltd.

The origin of DOWA -Established in 1884 as mining company -Treating “black-ore” which contains a lot of impurity -Changed materials from “ores” to “recyclables”

Mining to Waste Management & Recycling <Mining and Smelting Business> Minerals Air Pollution Control Metals : 99.99% Gold, Silver, Copper, Zinc, Cadmium, etc. Smelting & Refining Exploration Mining Transportation Separetion Ore Copper 1% Zinc 5～8% Mineral Concentration Copper 20～30% Zinc 50% Rocks Ore Deposits Gold, Silver, Copper, Zinc, Lead, Cadmium, Arsenic, etc. + Minerals Rocks Mine Waste Deposit (Dam) Metal Recycling <Environmental Management Business> Clean-uped Soil for reuse Soil Remediation Soil Metals Survey Excavation Transportation Decontamination Soil contamination Lead, arsenic, cadmium, etc. Residue + + + Mine Waste Deposit (Dam) Metals Oils VOC Soil Landfill Site ※Soil Contamination = contaminants created by humans Waste management Examination Collection/Transportation Separation/Incineration etc. Air Pollution Control

Metal Recycling Technology of DOWA New Type Furnace for Secondary Materials Au Ag Zn Ga Bi Pt Pd Rh Sb Ru Sn Cu Cd Pb Ge In Se Te S Co Li Ni

DOWA’s Network in Asia Metal Recycling Soil Remediation Waste Management (Landfill) Soil Remediation Waste Management (Incineration) Waste Management (Landfill) Metal Recycling Soil Remediation Waste Management (Landfill) Metal Recycling Soil Remediation Waste Management (Incineration) Metal Recycling

Establishment of inter Asian recycling system ３R Framework in Asia Recycling and suitable treatment system in each country. Now, each country is operating their own recycling. But sometime those are only manual separation. Thus, it is useful to establish ‘Inter Asia Recycling System’ in order to increase recycling efficiency by applying a sophisticated process and to protect environment. Establishment of inter Asian recycling system

Waste/Recycle material flow ＝DOWA’s target Generator collection Regulated by law Municipal waste Industrial waste Food waste Wood sewage Home appliance Car dismantling Domestic waste package Soil remediation segregation/ separation Segregation/separation segregation/ separation Construction scrap Oil recovery Biomass Incineration PCB’s incineration Recycle melting Cement Nonferrous metals Landfill Thermal recycle/ Electric generation composting paper aluminum iron concrete Rare metals BDF wood plastics gypsum ASD・SD

Key Points from our experience Generator collection Collection How to collect recyclables/waste efficiently Regulated by law Municipal waste Industrial waste Food waste Wood sewage Home appliance Car dismantle Domestic waste package Soil remediation 2. Treatment How to treat recyclables/waste properly, flexibly segregation/ separation Segregation/separation segregation/ separation Construction scrap Oil recovery Biomass Incineration PCB’s incineration Need to consider more close co-operation, industry reorganization, cross-border co-operation in Asia-Pacific (e.g. Asia Pacific Waste Management & Recycling Centre) Recycle melting Cement Nonferrous metals Landfill Thermal recycle/ Electric generation composting paper aluminum iron concrete Rare metals BDF wood plastics gypsum ASD・SD

Key Factors for Promoting 3R Activities 1. Law enforcement 2. Manufacturing 5. Waste management/ Recycling 4. Awareness of citizens 3. Collection

“Operation oriented” to “3R oriented” 1. Law enforcement Opinion, Request, Advice, etc 2. Manufacturing 5. Waste management/ Recycling 4. Awareness of citizens 3. Collection

Our mission at DOWA ECO-SYSTEM is to discover, nurture and bring to life the ideals of people and companies who share our planet.