Who we are

Our Business

Our Performance

The Sansha Electric Manufacturing Group consists of Sansha Electric Manufacturing Co., Ltd. and ninesubsidiaries. Our business activities include the development, manufacturing and sale of semiconductor
devices and power supplies and also the provision of services related to each business.

Power semiconductorbusiness

Power supply businessResults for
FY2022

Power modules/power discrete
semiconductors/chips/otherComposition
Net sales(outer arc)

billion yen

General industrial power supplies, power
supplies for surface treatment, light sourcesand dimming, inverters, small embedded
power supplies, and other power supplies(million yen)(million yen)(%)

30,0002,000

1028,08824,36922,67521,875
19,43620,000Operatingprofit(inner arc)

31%

The Sansha Electric Manufacturing Group does
not develop or manufacture integrated circuitsemiconductors such as memory or microcomputers.
Instead, it develops power semiconductors. These areused in many different kinds of power supplies for theconversion of high voltages or currents between direct
current and alternating current, for controlling current
and voltage and for other purposes. They are essential
devices for improving power conversion efficiency andsaving energy.

7.5
5.8

2018 2019 2020 2021 2022

1technologies for
2 Packaging
high reliability

3

Synergy with the power
supply business

7.50-750

2.1

2018 2019 2020 2021 2022

(FY)

0(FY)

680

2018 2019 2020 2021 2022

(FY)

Composition

billion yen

Net sales(outer arc)

71%

Operatingprofit(inner arc)

69%

We utilize technologies that freely transformand efficiently convert electricity to develop andmanufacture a wide variety of power supplies supporting
the environmental and energy sectors, the infrastructure andfacility equipment sectors and entertainment-related sectors.
Using power semiconductors, they efficiently supply stableelectric power for a wide variety of applications, including
everything from high to low electric power.

ROA

ROE

(%)

(%)

8

8

6.5
6

5.1

4

100

6.8

1.7
2019

2020

2022

2018

(FY)

2

Wide range of developmentfrom small custom-made tolarge industrial power supplies

3

2020

2021

2022

24,051 24,846

27,146

48.22
8.22
2018

(FY)

2019

80

76.9

0

72.4

623

0

69.9

88-750

5350

2018

2019

2020

2021

2022

(FY)

(FY)

1,374

750

73.0

70
10,000

2022

77.8

75

20,0002021

Free cash flow
1,500

29,0832020(million yen)

(%)

65

Integrated production
including development,design and manufacturing

2019

Equity ratio(million yen)
30,000 28,532

35.42

-50

3.5

-4

2021

95.33

0

1.0

0

83.30

50

0
2

93.44

6.1

2.6

Strengths and featurespower
1 High-efficiency
conversion technology

5.9

4

4.4

Earnings per share(yen)

Total assets

Independently developed
power semiconductors withhigh voltage resistance, highcurrent and low power loss
characteristics

5.8497416

1.20

1,147 1,241

750

1,3160(million yen)
1,500
1,339

1,629

256

2018

Strengths and features

1,833

10,000Operating profit

29%

Profit attributable to owners of parent

Operating profit (Left axis)
Ratio of operating profit (Right axis)

1,000

Net sales

28.0
1.6

Operating profit & ratio of
operating profit

Net sales

997
2018

2019

2020

2021

2022

2018

(FY)

2019

2020

2021

2022

(FY)

COLUMN

05

Third largest share of
the global market

Largest share of
the domestic marketof thyristor and diode modulesof power supplies for surface treatmentSource:
Omdia, Annual Power Semiconductor Reports - 2021

Note:
Estimated by Sansha Electric Manufacturing Co., Ltd. on thebasis of the Japan Surface Finishing Suppliers Association:
2021 Dynamic Statistics of Power Supply Sales

What does “transforming electricity flexibly and converting it
efficiently” mean?
The electricity generated by power plants and other facilities cannot be used as
it is. It must be transformed. There are roughly four different ways of transformingelectricity. There is always a loss of electricity every time a power conversion occurs
in the process from power generation at a power plant, through transmission lines
and power supply circuits to the final operation of electric appliances by consumers.
It is believed that improvements including the increase of conversion efficiency arenecessary to reduce this power loss.

1

Converting direct current
electricity to alternating current

2

Converting alternating current
electricity to direct current

3

Changing the frequency ofalternative current electricity

4

Changing the voltage of direct
current or alternating current
electricity

SanRex REPORT 202306