111 May 2020
Sumitomo Electric Industries, Ltd.

Sumitomo Electric secures >€500M “Corridor A-Nord” High Voltage DC
Underground Cable Project in Germany which sets new innovative
benchmarks in the HVDC Industry
Sumitomo Electric Industries, Ltd., with the support of its technology partner, SüdkabelGmbH, to deliver the highest voltage 525kV XLPE(*1) Insulated High Voltage DC(HVDC)
underground cable system for German Corridor Project to supply renewable power
generated in the North Sea of Germany to the central and southern part of the country.

Sumitomo Electric Industries, Ltd. (Sumitomo Electric)has been awarded a major HVDC
underground cable project, Corridor A-Nord, by the German Transmission SystemOperator, Amprion GmbH. The project will form part of the so-called German HVDC
corridor projects and is considered one of the most critical power transmission
infrastructure projects in the country to support the “Energy Transition” of Germany tointroduce more renewable energy to consumers and reduce the country’s CO2 emissions.

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There are two projects; “Corridor A-Nord” in the northern part and “Ultranet” in thesouthern part. Both are part of a Multiterminal HVDC-Link which connects three converter
stations in the cities of Emden, Osterath and Phillipsburg. Sumitomo Electric will beresponsible for the design, manufacture, logistics, installation, jointing works,commissioning and maintenance of the approximately 300km long cable route forCorridor A-Nord. Start of Construction activities is scheduled for 2023.

“It is a great honour for us to be awarded a project of this magnitude that will provide
such important infrastructure for the German society. We are pleased that Sumitomo’s
state-of-the-art and innovative DC525kV cable technology has been recognised andhighly regarded by Amprion, and we are committed to working together with Amprion tocomplete the project in a safe, timely and reliable manner” statement by Sumitomo
Electric’s Managing Executive Officer, Yasuyuki Shibata.

Sumitomo Electric has been leading the international power cable industry with its owndeveloped HVDC XLPE insulation technology. In 2019, Sumitomo Electric successfullycommissioned the NEMO Project; the HVDC interconnector between UK and Belgium,with 400kV XLPE technology which is currently the highest commercial operational
voltage of such insulation in the world. With realisation of Corridor A-Nord project,Sumitomo Electric will further strengthen its leading position in the HVDC industry.

In addition to the technology advantages, Sumitomo Electric has nominated SüdkabelGmbH (SK), headquartered in Mannheim, as its German based technology partner forthe successful execution of the Corridor A-Nord Project. SK has adopted Sumitomo
Electric’s unique insulation technologies, suitable for a hybrid system, where overheadline and underground cable are combined, and completed the type test in accordancewith the CIGRE(*2) standard, including extensive polarity reversal condition needed forsuch hybrid system. SK will not only manufacture “Made in Germany” HVDC XLPE
cables, but also provide engineering and management resources during the project
implementation.

Masaki Shirayama, a member of Sumitomo Electric´s Executive Board

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said “Sumitomo, in collaboration with Südkabel, will provide the best project execution
combination to execute such an important project for the German society. Furthermore,
Sumitomo will utilise the group’s eleven (11) existing business bases, employing morethan 3,000 people in Germany, to provide a fully localised solution, as a long-term project
and business partner of Amprion.”

The Corridor A-Nord project is for underground cable system. On the other hand, there
are growing needs for 525kV HVDC XLPE subsea cables with a worldwide trend towards
development of more offshore wind farms and interconnections between regions orcountries where long distance, high capacity power transmission is needed. Sumitomo
Electric is developing such offshore cables, including long term testing, so that it cancontribute to the growing trend aimed at increasing the use of renewable energy and areduction of CO2 emissions.

*1) XLPE stands for crosslinked polyethylene. Conventionally, mass impregnated cables
using highly viscous insulation oil have been utilised for HVDC projects. In recent years,XLPE insulated cables have been commonly adopted by the market due to their highallowable operating temperature and growing environmental concerns. As of today, themaximum voltage for commercially used HVDC XLPE insulated cables is 400 kV with
the NEMO Interconnector commissioned by Sumitomo Electric.

*2) CIGRE, stablished in 1921 in Paris, France, is a global community committed to thecollaborative development and sharing of power system expertise. The community
features thousands of professionals from over 90 countries and 1250 member
organisations, including some of the world’s leading experts.

Sumitomo Electric Industries, Ltd. was established in 1897. Since then, based on electric
wire and cable manufacturing technologies, we have conducted our original researchand development and strenuously strived for the establishment of new businesses.
These efforts have allowed us to create new products and new technologies, as well as
diversify our business fields. Currently, we operate our businesses on a global basis in
the following five segments: Automotive; Info-communications;Electronics; Environment & Energy; and Industrial Materials. We have

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been contributing to society through environmental friendly and fair business activities
globally. Further information is available here http://global-sei.com/.

Südkabel GmbH, based in Mannheim, specialises in the manufacture of Medium-voltage,High-voltage and Extra High-Voltage XLPE insulated power cables and cable
accessories, as well asin installation and services. Founded in 1898 Südkabel is one of
the most experienced supplier of cable systems up to 525kV including planning andengineering with a track record of more than 1500km 400/500kV XLPE cables and morethan 3000 accessories installed world wide.

■ Reference
Sumitomo Electric's Website
https://sumitomoelectric.com/

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