Heading
Nippon Denko Compendium

August 2024
© 2024 Nippon Denko Co., Ltd

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Contents
 Company Overview

 Functional Materials

Company overview ………………………………………………………………….…....…....

3

Functional materials products list ………………………………………………………….

18

Businesses and products .……………………………………………………….……………..

4

Zirconium oxide .…..………………………………………………………………………………..

19

History of Nippon Denko ……………………………………………………………………….

5

Boron oxide …….……………………………………………………………………………………..

20

Metal hydride alloy………………………………………………………………………………...

21

Ferroboron …………………………………………………………………………………………….

22

Manganese inorganic chemical products………………………………………………..

23

Cathode materials for lithium-ion batteries …………………………………………..

24

 Ferroalloys
What are ferroalloys?
Ferroalloys, an essential material for steel ..………………………..…………….

7

How are ferroalloys made? …………………………….………………………………….

8

Global crude steel production by country and ferroalloy production
by product ………………………………………………………………………………………….

9

Ferroalloy production in Japan: Ferromanganese is produced
domestically ……………………………………………………………………………………….

10

Manganese ore: Ferroalloy’s raw material, global production andtrading volume …………………………………………………………………………………..

11

Ferroalloy market prices and manganese ore prices ……………….………….

12

Business strategy of Nippon Denko

Incineration ash recycling business ……………………………………………………...

13

Low-carbon ferromanganese (SLP)……………………….…………………..………...

14

Resource strategy and optimal location are the ways to win out overrivals …………………………………………………………………………………………………

15

Kudumane manganese mining area …………………………………………………

1626

 Aqua Solutions
Aqua solutions business ……………………………………………………………………...

27

 Electric PowerElectric power business ………………………………………………………………………...

Ferroalloys business of Nippon Denko ……………………….…………………..…..

© 2024 Nippon Denko Co., Ltd Incineration Ash Recycling

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1

Chapter heading

Company Overview© 2024 Nippon Denko Co., LtdzX

2Company Overview
 Established

October 1925

- Management Philosophy -Helping create an affluent future through sustainablegrowth by developing and providing distinctive products,
technologies, and services.

 Head Office

1-4-16, Yaesu, Chuo-ku, Tokyo

 Employees

Consolidated : 937
Non-consolidated: 625

 Businesses

Ferroalloys / Functional Materials /Incineration Ash Recycling / Aqua Solutions /Electric Power Group Affiliates

5 domestic
2 overseas affiliates(as of Dec. 31, 2023)

 Scale(consolidated)- Our Ideal State in 2030 -A company on a constant quest for a better future bysupporting people's lives
through materials and the environment.
■ Head Office, Manufacturing Bases

FY2023

millions yen

Net sales

76,406

Total assets

100,750

Shareholders’ equity

11,096Equity ratio

71.0%

Myoko Plant:
Functional Materials
Toyama Plant (Imizu area):
Functional Materials

Hidaka Office: Electric Power

Toyama Plant (Takaoka area):
Functional Materials

Koriyama Plant: Aqua Solutions
Kashima Plant: Incineration Ash Recycling Stock(as of Dec. 31, 2023)

Company Overview© 2024 Nippon Denko Co., Ltd

Total number of issued shares

137,217,772

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Tokyo Head Office
Tokushima Plant: Ferroalloys, Functional Materials
R&D Laboratory3

Businesses and products
Businesses

Ferroalloys

Products
High-carbon ferromanganese andother ferroalloys

Liquid crystal glass substrate and glass fiber, etc.

Boron oxide, Boric acid

Nickel-hydrogen batteries in HEV

Metal hydride alloys

Steels, magnets and amorphous metals

Ferroboron
Manganese inorganic chemical products
Cathode materials for lithium-ion batteries

Incineration Ash

Steel, stainless steel, and specialty steel

Laminated ceramic capacitors and optical glass, etc.

Zirconium oxide
Functional Materials

Applications

Additives for laminated ceramic capacitors and cathodematerials for lithium-ion batteries. etc.
Lithium-ion batteries in EV

Melting and solidification of incineration ash
in electric furnace

Detoxification and recycling of incineration ash

Aqua Solutions

Wastewater treatment equipment
Pure water production system

Recovery of heavy metals in wastewater and water reuse
Hydrogen production and high-purity water cleaning forexperiments and analysis

Electric PowerElectric power

Sale of electricity

Recycling

Company Overview© 2024 Nippon Denko Co., LtdzX

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History of Nippon Denko■ Ferroalloys ■ Functional Materials ■ Incineration Ash Recycling ■ Aqua Solutions ■ Electric Power1925■ Established Ogaki Denki Yakin Kogyosho Co., Ltd. (later Nippon Denki Yakin Co., Ltd.) and started production and sale of various ferroalloys.

1963 Nippon Denko Co., Ltd. is formed through the merger of Nippon Denki Yakin Co., Ltd. and Toho Denka Co., Ltd.

1969

■ Tokushima Plant built, started operation. (equipped with pier facilities and large electric furnace)1970■ Started production at the Kashima Plant.

1976■ Started production of manganese inorganic chemical products at the Taguchi Plant. (currently the Myoko Plant)

1984■ Started production and sale of ferroboron by using electric furnace.

1989■ Started production and sale of zirconium oxide.

1992■ Started production of metal hydride alloys at Taguchi Plant. (currently the Myoko Plant)

1996■ Started sale of AQUA PACK, cartridge-type demineralizer.

1999■ Started sale of MR PACK, pure water production equipment.

2000■ Completed expansion of ferroboron production facility.
■ Completed zirconium oxide new production plant.
■ Completed construction of boron recovery facility.

2002■ Started nickel recovery and recycling business.
■ Completed construction of dedicated waste melting furnace (EM1) at Kashima Plant. / Started operation of industrial waste recycling.

2003■ Acquired a business of lithium manganese battery materials.

2004■ Started fluorine and phosphorus recovery and recycling businesses / Started delivery of pure water production equipment for fuel cell.
■ Completed construction of waste melting furnace (EM2) at Kashima Plant.

2005■ Installed an in-house power generator utilizing the electric furnace gas at Tokushima Plant.

2010■ Completed the first stage of large-scale plant for automotive battery materials.

2011■ Completed the second stage of large-scale plant for automotive battery materials.

2012■ Capital investment in Pertama Ferroalloys Sdn. Bhd.

2013

■ Acquired manganese mining interests in South Africa.
■ Obtained approval for soil decontamination at Kashima Plant.

2014■ Received facility certification for renewable energy Feed-In Tariff (FIT) program under the Japanese government.

2018■ Completed construction of waste melting furnace (EM3) at Kashima Plant.
■ Started Sumitomo Metal Mining’s contract manufacturing of cathode materials for lithium-ion at Toyama Plant.

2019■ Started the operation at Horomangawa Hydroelectric No. 3 Power Plant.

2022■ Started the operation of self-consumption solar power generation system at the Koriyama Plant. ■ Completed construction of incinerator ash No. 4 melting furnace at the Kashima Plant.

2024 Completed an absorption-type merger of Chuo Denki Kogyo Co., Ltd.

Company Overview© 2024 Nippon Denko Co., Ltd Changed its corporate name upon merger with Chuo Denki Kogyo Co., Ltd. (English name unchanged)zX

5Ferroalloys

Ferroalloys© 2024 Nippon Denko Co., LtdzX

6Ferroalloys, an essential material for steel
Ferroalloys are of vital importance in making steel, as they are a necessary“seasoning” found in every piece of steel.

▼Ferroalloys

Steelmaking process
Steelmaker
Coal

Coke

Iron oreBlast
furnaceConverter
furnace

SinterThey make steel stronger andtougher, as well as moreresistant to heat and corrosion.

Completion as steel

LimestoneMajor ferroalloy products and applications
Ferromanganese(Nippon Denko’s main product)
Ferrosilicomanganese
Ferrovanadium

Ferroalloys market scale (2023)

Make steel stronger
Nippon Denko’s main product:
Ferromanganese

Oil well casings, line pipes, springs

Ferrochrome

Stainless steel products

Ferrosilicon

Deoxidizing

Ferroalloys© 2024 Nippon Denko Co., LtdzX

In Japan, approx. 635.4 billion yen(source: Nippon Denko estimates)

The trading price depends
mainly on global market
conditions.
Trading takes place at a price calculated
by converting the global price in US
dollars to yen at foreign exchange rates.
(similar to the export industry, the profit structure is such that a weaker yen
increases profits.)

7

How are ferroalloys made?
Our main product, High-carbon ferromanganese
Main raw materials
Manganese ore:is made by steaming andbaking coal.
It is acting as a reducing
agent and removes oxygenin the ore.

Every measure is taken to protect
the environment.
Exhaust gas is used as fuelfor in-house power
generation.

▲

is main raw material for Highcarbon ferromanganese.
It contains impurities andmust be refined in an electric
furnace.

High-carbon ferromanganese

Coke:

High-carbon ferromanganese is aferromanganese product with arelatively high carbon content.

Metal from electric furnace▲

After cooling,
it becomes a product

Electric furnace

Slag

By-products of themetal production
process.

No. 1 sharein Japan

Melts raw materials at very high temperatures.
Ferroalloys© 2024 Nippon Denko Co., LtdzX

8Global crude steel production by country and ferroalloy production by productグラフ タイトル
2,400

Global crude steel production

Global ferroalloy production(millions tons)(thousand tons)

2,100

40,000

1,800

1,500

17
42
120
101

1,200

390

353

362

150
99

35,000
395.2

385
22
48

17
39
101

117

100

105

132

147

83

96

30,000
15
43
111

22
42
110

85

88

137

126

89

87

16,207

14,726

14,70913,243

15,53525,00020,000900
15,000
600

1,065

995

1,035

1,013

5,000

0
19

China

Japan

20

EU

CIS

21

N. America

S. America

22

Africa23

Others(source: World Steel Association data)
Ferroalloys© 2024 Nippon Denko Co., Ltd

16,952

17,02817,742

15,732

10,000

1,019

300

0

17,578

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1,487

1,232

1,466

1,391

1,589

4,060

3,522

4,071

3,987

3,854

19

20

21

22

23

HcFeMnM・Lc-FeMn

SiMn

FeCr

(source: IMnl and ICDA data)

9

Ferroalloy production in Japan: Ferromanganese is produced domestically
Ferroalloys production and imports,
グラフ タイトル
and
crude
steel
production
trend
in
Japan
3,000
Production and imports(thousand tons)

Ferroalloys production
rates in Japan
グラフ タイトル
120

Crude steel production(million tons)

120

100

(%)
100

2,000

80

80

1,500

60

60

1,000

40

40

500

20

20

2,500

Crude steel production

Ferromanganese

Ferrosilicomanganese
Ferrochrome

0

19

20

21

22

Production

23

0

0

Imports(source: Steel statistics)
Ferroalloys© 2024 Nippon Denko Co., Ltd

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19

20
Ferromanganese

21
Ferrosilicomanganese22

23
Ferrochrome(source: Steel statistics)

10

Manganese ore: Ferroalloy’s raw material, global production and trading volume
Global production of manganese ore
2023: 60.42 millions tons

Ukraine 1%
Ghana 5%

Mostly high or medium-grade ore

Others10%

India 5%Sounth Africa
37%

Brazil 4%

Less likely to produce slag and havehigher metal recovery rates than lowgrade ores.

Gabon

Ore from China is mostly low-grade

Gabon
16%
Australia
11%

China
11%

（source: IMnI data）

Japan’s manganese ore imports
2023: 0.91 millions tons

Gabon
10%
Australia
20%
South Afruca
70%

2023: 31.35 millions tons
Others2%

Ferroalloys© 2024 Nippon Denko Co., Ltd

BrazilAustralia

China’s manganeseore import volume
中国Mn鉱石輸入量

China’s manganese ore imports
3,500(10 thousand tons)

3,400
3,300
3,200

Gahna
10%
South
Africa
47%

Gabon
15%

3,100
3,000
2,900
2,800

Australia
17%(source: IMnI data)

South Africa

Processing low-grade ore results in alarge amount of slag, for a low metal
recovery rate.

Myanmar2%
Cote d'lvoire
2%
Malaysia1%
Brazil
4%

China

2,700

(source: IMnI data)

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19

20

21

22

23

(source: IMnI data)

11

Ferroalloy market prices and manganese ore prices
グラフ タイトル

グラフ タイトル

Product prices and ore prices

Product price (quarterly average)
($/t)
3,000

($/t)
2,500

($/Mn%)
8.0
7.0

2,500

2,000

6.0

2,000

5.0

1,500
1,500

4.0

1,000

3.0

1,000
500

500

0

2.0

19

20

High-carbon ferromanganese European market

High-carbon ferromanganese European market

High-carbon ferromanganese US market

Manganese ore

21

22

0

23

19

20

21

0.0

22

23

High-carbon ferromanganese (FMnH) & Manganese ore prices transition data
19

1.0

FMnH ($/t) / Mn Ore ($/Mn%)

20

21

22

23

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

FMnH (Eur)

1,207

1,200

1,091

985

1,023

1,060

1,014

1,077

1,315

1,607

1,815

2,109

1,894

1,940

1,260

1,225

1,264

1,153

1,009

1,026

FMnH (US)

1,344

1,374

1,368

1,167

1,102

1,177

1,072

1,232

1,572

1,728

2,234

2,540

2,625

2,909

2,485

1,524

1,438

1,425

1,292

1,179

6.5

6.2

5.6

4.1

4.4

5.7

4.3

4.2

5.2

4.9

5.2

5.6

6.3

7.6

5.8

4.6

5.6

4.8

4.4

4.2

Mn oreSource: Metals Week (US market) Metal Bulletin (Fastmarket)

Ferroalloys© 2024 Nippon Denko Co., LtdzX

12Ferroalloys business of Nippon Denko
Ferroalloys business sales trend ratio by product
(%)
100

5

4

3

2

4

80

60

SilicomanganeseHigh-carbon
ferromanganese

69

72

72

71

68

Low-carbon
ferromanganese (SLP)
Ferrovanadium

40

18
1

0

Low-carbon ferromanganese (SLP) has a very highmanganese content with few impurities. It is used
as an additive in the final stage of steelmaking, inplace of manganese metal.
(please refer to page 14 for details)

Ferrosilicon
20

High-carbon ferromanganese is our main product.
It is produced domestically, taking advantage ofthe competitiveness of the Tokushima Plant.

18

20

21

22

7

0
6

4

3
2

1
3
2

19

20

21

22

23

Ferroalloys© 2024 Nippon Denko Co., Ltd

Manganese metal: A metal with a manganesepurity of nearly 100%. It is used as an additive inmaking steel, stainless steel, and aluminum.

OtherszX

13

SLP ferromanganese
What is low-carbon ferromanganese (SLP)?
(SLP: Super-Low Phosphorus)▲Low-carbon ferromanganese (SLP) Very low-carbon ferromanganese withmanganese purity of 90% and low
phosphorus content.
 As a raw material essential for high-gradesteel production, it is used in place ofmanganese metal.

Manganese metal

 Producing high-purity ferromanganese from the by-productof High-carbon ferromanganese using proprietary technology
Superiority
 Further demand is expected due to the high-grade steel
production increase

Strategy Added one electric furnace in 2008. Annual production
capacity had raised from 18,000 tons to 30,000 tons.
 Expanded annual production capacity from 30,000 tons to
40,000 tons in 2010.
 Contributing a stable procurement to customers andincrease profitability.

Chineseproduction andexports
200
グラフ
タイトルof manganese metal(10 thousand ton) Annual demand for manganese metal in Japan is about 50,000
tons, all of which is imported, some 90% of it from China.
 Because of the very high dependence on China, producing it inareas other than China or possibly switching to an alternative are
options being considered.

© 2024 Nippon Denko Co., Ltd

Exports

120
80
40
0

Ferroalloys

Production

160

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19

20

21

22

23

(source: IMnI data)14

Resource strategy and optimal location are the ways to win out over rivals
Optimal production location in accordance with the product type
Domestic location：Tokushima Plant
Type of product： High-carbon ferromanganese,
Low-carbon ferromanganese (SLP), etc.

Overseas location：Pertama Ferroalloys Sdn. Bhd(25% ownership ratio)
Type of product：
Ferrosilicomanganese, Ferrosilicon Securing competitive green
electricity from Southeast Asia'slargest hydroelectric power plant(Bakun Dam, 2,400 MW)

 Produces ferroalloys with low electric
power consumption and is one of themost competitive plants in the world Just-in-time supply available due toits adjacent location to the coast Produces ferroalloys that consume
large amounts of electricity

 Annual production capacity:
180,000 tons
Tokushima Plant (Anan city, Tokushima Prefecture)(High-carbon ferromanganese)

Pertama Ferroalloys Plant (Malaysia)

 Annual production capacity:
220,000 tones

Resource strategy
Obtaining stable supply of the ores needed for ferroalloy production
 Acquired manganese mining interests.
Investment in Kudumane Japan GK which invests to Kudumane
Manganese Resources (25% ownership ratio) Diversification of ore procurement sources

Ferroalloys© 2024 Nippon Denko Co., LtdzX

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Kudumane manganese mining area

South32

ASSMANG

Hotazel
KUDUMANE

TeleleYork

South32

Ferroalloys© 2024 Nippon Denko Co., LtdzX

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Functional Materials

Functional Materials© 2024 Nippon Denko Co., LtdzX

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Functional materials products list
Functional materials products

Zirconium oxide

Boron oxide, boric acid
Metal hydride alloys

Ferroboron

Usage
For electronic ceramics

Raw material of PZT piezoelectric actuators, laminated ceramic
capacitors, etc.

For glass

Used as additives in high-refractive optical glass lenses, etc.

For functional films

Raw material of optical adjustment coating, hard coating materials,
etc.

Composite oxide forcatalysts

Catalytic promoter for purifying automobile exhaust gas

For glass

Used as additives in liquid crystal glass, optical glass, glass fiber, etc.

For other applications

Raw material of boron compounds, disinfectants, surface treatment
agents, etc.

Anode materials for nickel-hydrogen batteries (mainly for HEV)For steels

Used as additives in steel as one kind of ferroalloy

For magnets

Raw material of neodymium iron boron (NdFeB) magnet alloy

For amorphous alloys

Raw material of amorphous alloy (FeSiB)

Manganese inorganic chemical products

Please refer to page 23 for details.

Cathode materials for lithium-ion batteries

Cathode materials for lithium-ion batteries (mainly for EV)

Functional Materials© 2024 Nippon Denko Co., LtdzX

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Zirconium oxide
What is zirconium oxide?
 Electronic ceramics made from zirconium oxide have the electrical properties for storing electricity and converting between electricity andpressure.
 A high refractive index is achieved by using zirconium oxide as an additive in optical glass and functional film.

Nippon Denko and zirconium oxide
 Started production at the Tokushima Plant in 1989
 Won acclaim for ultrafine particles and high purity
 Sold mainly for use in electronic parts and optical lenses

Main applications and productsElectronic ceramics

Glass / Film

 Laminated ceramic capacitors and ceramic filters used in the electrical circuits of digital
home appliances, PCs, cell phones, and other digital devices
 Inkjet control devices in inkjet printers

Optical lenses for digital cameras, films for liquid
crystal displays (LCDs), etc.

 Image stabilization indigital cameras and otherdevices, and in gyro
sensors for tilt detection insmartphones
Ceramic capacitors

Functional Materials© 2024 Nippon Denko Co., Ltd▲ Inkjet printerzX

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Boron oxide
What is boron oxide?
 Boron oxide is calcined and anhydrous boric acid.

Nippon Denko and boron oxide
 The only manufacturer in Japan
 Started production at the Tokushima Plant in 1986. (the first in Japan)
 In 2022, it also began production for external sales at the Toyama Plant.
 Nippon Denko supplies high-quality, high-purity products that contain minimal impurities.
 Other than glass, expanding business for electronic pats materials, etc.

Main applications
Glass panels

Glass panels for monitors, TVs, etc.

Glass fiberElectronic parts substrates for high-speed data transmission

Functional Materials© 2024 Nippon Denko Co., LtdzX

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Metal hydride alloys
Metal hydride alloys

Features of metal hydride alloys

 Started commercial production in 1992
 Adapted by Toyota HEVs / The largest metal hydride alloys
supplier of HEV’s batteries in Japan
 ISO 9001 and ISO 14001 certified plant Long life span equivalent to vehicle life
 Ample output to ensure startability at low temperatures and power
acceleration

Principles of nickel-hydrogen batteries
Charging

Discharging

Metal hydride alloys plant (Myoko, Niigata Prefecture)

Main applications

Metal hydride alloys anode© 2024 Nippon Denko Co., Ltd

Nickel cathodeNi(OH)₂+M

NiOOH+MH

Anode material for nickel-hydrogen batteries used as drive
batteries in HEV.

Functional Materials

Charging
Discharging

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Ferroboron
Nippon Denko is the only ferroboron manufacturer in Japan.
Products

Description

For
steel

Adding a very small amount (10 to 100 ppm) of
boron to steel improves its hardenability andhigh-temperature strength.

FormagnetsFor
amorphousalloysUsage or applications

A neodymium iron boron (NdFeB) magnet is thestrongest kind of permanent magnet. Thesemagnets are essential to making electronic
devices smaller and lighter, higher efficiency andenergy-savings.

Amorphous (noncrystalline) alloy ribbons withthickness of just a few tens of microns areproduced by extremely rapid cooling of thealloys composed of Fe, Si, B, etc. from molten
state, at a rate of around a million degrees
celsius per second.

Applications
Wires used in suspension bridges, bolts and nuts,
claws of power shovels.

Applications of NdFeB magnets
 Motors of HEV and EV.
 Head actuator mechanism for hard disk drive reading and writing.
 Motors in energy-efficient appliances (air conditioners, etc.)
 Electrical generator in wind power system.

Used mainly as the steel core material of amorphous transformers
When amorphous alloys are used as steel core material intransformers, electrical (no-load) loss at the steel core is very small for
improved energy efficiency.
Amorphous alloy

Functional Materials© 2024 Nippon Denko Co., LtdzX

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Manganese inorganic chemical products
Manganese inorganic chemical products

Usage of manganese inorganic chemical products Started commercial production in 1976 The only Japanese domestic manufacturer of diverse manganese
inorganic chemical products

Products

Usage ISO 9001 and ISO 14001 certified plants

Manganese sulfate

Animal feed additives, catalyst raw materials,
supplements, fertilizers

High-purity manganese sulfate

Cathode materials for lithium-ion batteries

Manganese carbonate

Animal feed additives, surface treatment agent
raw materials, soft ferrite

High-purity manganesecarbonate

Additive in laminated ceramic capacitors,
thermistors

Chemical manganese dioxide

Ozone decomposition catalysts, deodorizing
catalysts, oxidizing agents for organic synthesis

Reduced ore

Flux Kosher and FDA certified plant (manganese sulfate)

Manganese inorganic chemical
products manufacturing plant(Myoko, Niigata Prefecture)

Features of manganese inorganic chemical products Holder of technology for high-purity refining of manganese ore Thorough removal of alkaline metals and alkaline earth metals by
crystallization and recrystallization processes
 Thorough removal of iron by use of oxidizing agent and optimization ofreaction pH
Functional Materials© 2024 Nippon Denko Co., LtdzX

Manganese sulfates

Manganese carbonates

23

Cathode materials for lithium-ion batteries
Cathode materials for lithium-ion batteries

Principles of lithium-ion batteries

 Started commercial production in 1997
 The pioneer of cathode materials for large lithium-ion batteries
 ISO 9001 and ISO 14001 certified plant The contract manufacturing from Sumitomo Metal Mining

Charging

Discharging

Battery materials manufacturing plant(Takaoka, Toyama Prefecture)

Main applications
Cathode materials for lithium-ion batteries uses as drive batteries in EV and HEV etc.
Cathode materials for large lithium-ion batteries in smart house or energy storage system etc.

Functional Materials© 2024 Nippon Denko Co., LtdzX

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Incineration Ash Recycling

Incineration Ash Recycling© 2024 Nippon Denko Co., LtdzX

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Incineration Ash Recycling
History of businessFeatures Chuo Denki Kogyo became the first private company in Japan to begin
treatment of incineration ash generated from municipalities by melting ina ferroalloy furnace in 1995
 Second dedicated furnace was put into operation in 2004
 Third dedicated furnace was put into operation in 2018
 Fourth dedicated furnace was put into operation in October 2022

 Melting and solidification at high temperature → decomposition of dioxin,
detoxification and stabilization of heavy metals
 Slag (ECOLAROCK) produced by melting is safe and environmentally friendly
product for use in civil engineering and construction materials (roadbed
material, revetment construction, etc.)
 Valuable metals (gold, silver, copper, etc.) contained in metals produced bymelting are recycled (recycling of urban mines)
Chimney

Gas washing equipment<Applications Example>

Ash hopper
Cooling tower

Ash melting furnace
Furnace-top ash
hopperElectrode

Dustcollector

Sieve
Incineration ash storage facility

Slag
Metal

Ash

Secondaryburning vat•

Roadbed material•

Leveling material for solar panel
installation

Roadbed material

Dry pitMetal
casterMetal

Slowly cooled slag

Dedicated carrier vehicles

Leveling material

Valuable metals separated and collected at
nonferrous smelter and refiner
Incineration ash(collected from municipalities)•

Embankment material for disasterrecovery•Base material for river embankment work

Material for river embankment work
(ECOLAROCK)

Incineration Ash Recycling© 2024 Nippon Denko Co., LtdzX

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Aqua Solutions

Aqua Solutions© 2024 Nippon Denko Co., LtdzX

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Aqua Solutions
Has a large ion-exchange resin recycling plant in Koriyama, Fukushima prefecture.
Rental, sale, and regeneration of water treatment equipment, ion-exchange resin towers with the consignment regeneration scheme.
Clean Recycle Technology

Pure Water Technology

Ion-exchange towers for wastewater treatment thatenable the recovery of water and resources.

Pure water production that pursues further purity.

Ion-exchange resin towers of wastewater treatment

Cartridge demineralizer

AQUA PACKND MINICHROPACK：Chrome and other heavy metal,
various acid, alkali waste water
B-CLEPACK：
Boron removal
NI-PACK：
Nickel removal
F-PACK：
Fluorine removal• Simple and easy-to-use demineralizer filled with ion-exchange resin.
• By simply connecting the unit directly to a faucet.
• Creates high-purity water by removing Ca, Na, SO4, CI, SiO2, etc., in tap water.

MR PACK

Pure Water System that combines the reverse osmosis membrane(RO membrane) with the ion-exchange resin tower.
• Compact design.
• Easy to operate by automatic control.
• Can be customized according to customer requirements.
 For washing of surface
treatment For experiments and analysis

Contribution to the hydrogen society

Features
1. Reuse and resources recycling of water or thechemicals• Reuse waste water as deionized water or pure water.
• Recycling of the absorbed ion.
2. Consignment regeneration scheme• No requirement for effort or chemicals toregenerate at the customer's site.
• No sludge is generated.
3. Various sales method• Choice of rental or purchase.
• Propose the best combination of equipment, taking
into consideration for the period of use, workload
and budget, etc.

Aqua Solutions© 2024 Nippon Denko Co., Ltd For the water boilers and air
conditioning For hydrogen production

Example of Usage Flow
Deionized water
circulation flow

Ene-Farm
Purified water
manufacturing forhome-use fuel cells

As an alternative energy source, Ene-Farm (home-use fuel cells) is on therise. Ene-Farm uses hydrogen extracted from gas to generate electricity.
Purified water is needed to extract hydrogen from the gas.
We are expanding our business into these fuel cell fields based on theadvanced ion exchange resin technology we have accumulated over theyears.

On-sitePurified water
manufacturing forhydrogen stations

Toyota Motor Corp. launched fuel cell vehicles on the market in 2014, andhydrogen stations are being promoted. We started manufacturing purified
water equipment for hydrogen production in 2005 in preparation for the
Aichi Expo, and we have the top share in Japan for on-site hydrogenstations.

water quality
monitorwashingtankwashingtank

Water pump+ safety filter

resin tower+ adsorption towerzX

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Electric PowerElectric Power© 2024 Nippon Denko Co., LtdzX

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Electric power business
Overview of electric power business Built a hydroelectric power plant at Horomangawa River in Hokkaido in early Showa period for the pioneer of the development of the power supply in
Hidaka area Renewed the power generation facilities at the No. 2 and No. 3 power plants
 Shifted to the business of selling electricity through the Feed-In Tariff system (FIT)Power generation facility

OutputOperation

No. 2 Power Plant

4,406kW

Started from Nov. 2017

No. 3 Power Plant

6,221kW

Started from Feb. 2019

Horomangawa
HydroelectricPower Plants

Horomangawa Power
Plant Dam No. 3
Electric Power© 2024 Nippon Denko Co., LtdzX

No. 3 Power Plant

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