Resonac Corporation (Formerly Showa Denko Materials Co., Ltd.)

Summary

Covers Resonac Corporation exhibition participation, products, technologies, and major customers. Offers exclusive information available only on MarkLines to support research and analysis in the automotive industry.

Company Profile

■URL

https://www.resonac.com/

■Address

Tokyo Shiodome Building, 1-9-1 Higashishinbashi, Minato-ku, Tokyo 105-7325, Japan

Business Overview

-Resonac, a major chemical manufacturers, was formed out of the 2023 merger of Showa Denko and Showa Denko Materials (formerly Hitachi Chemicals)

-The Group operates under a holding-company system.

Reconac Holdings Co., Ltd. (Formerly Showa Denko Co., Ltd.)
Resonac Co., Ltd. (Operating company formerly named Showa Denko Materials Co., Ltd.)

-The Company operates in the following four business segments

Segment	Business details
Semiconductors/electronic materials	Manufacture and sales of semiconductor pre-processing and post-processing materials, device solutions
Mobility	Manufacture and sale of automotive parts and lithium-ion-battery materials
Innovation materials	Manufacture and sale of functional chemical products, functional resins, coating materials, ceramics
Chemicals	Manufacture and sale of petroleum chemicals, chemicals, elemental chemicals, graphite electrodes

Shareholders

-Resonac Holdings listed on the Prime Market of the Tokyo Stock Exchange

(As of Dec. 31, 2024)

Major Shareholders	Shareholding (%)
The Master Trust Bank of Japan, Ltd. (Trust account)	16.60
Custody Bank of Japan, Ltd. (Trust account)	6.33
KOREA SECURITIES DEPOSITORY-SAMSUNG (Standing proxy Citibank, N.A., Tokyo Branch)	5.00
JPMorgan Securities Japan Co., Ltd.	3.08
Fukoku Mutual Life Insurance Company	2.49
STATE STREET BANK AND TRUST COMPANY 505223 (Standing proxy Mizuho Bank, Ltd.)	1.91
BNY GCM CLIENT ACCOUNT JPRD ACISG (FE-AC)(Standing proxy MUFG Bank, Ltd.)	1.78
BNYM SA/NV FOR BNYM FOR BNYM GCM CLIENT ACCTS M ILM FE(Standing proxy MUFG Bank, Ltd.)	1.56
STATE STREET BANK AND TRUST COMPANY 505103 (Standing proxy Mizuho Bank, Ltd.)	1.53
The Dai-ichi Life Insurance Company, Limited	1.49
Total	41.77

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Products

Molded plastics/Sheet-formed products
Rear-door modules

Exterior molded parts
-Bumpers
-Rear spoilers
-Front lids, Fenders

Interior molded parts
-Instrumental panels
-Consoles
-Door trims
-Floor boards

High strength plastic gears

Thermosetting moldings
-Precision moldings

Impellers for fuel pumps
Pulleys
Spacers for thermal insulation
Phenol SMC moldings

Thermoplastic molded products
-Small precision moldings
-Injection moldings and deposition moldings
-Molded inserts used for IPM housings
-Battery trays; glass fiber, reinforced thermoplastic resin

Sheet-formed products
-Olfin-based sheets
-Styrene-based sheets
-Multi-layer sheets
-High-luminance, metallic-looking plastic sheets

Friction materials
-Disc brake pads
-Brake assemblies

Powder metal products
Bearings
-Bearings for low sliding velocity and high load
-High performance iron-bronze bearings
-Bearings with complex shape

Aluminum Products
-Scrolls for electric compressors
-Propeller shafts
-Thin fin heatsink
-Automotive battery coolers
-Power semiconductor coolers for automobiles
-SHORIK (a powder alloy)
-Aluminum-alloy forged products
-Aluminum-alloy extruded rods/drawn rods
-Precision extruded products

Automotive Parts
-Silicon carbide (SiC) ceramics "Hexoloy"
-Varnish
-Electric automotive brushes
-Carbon sliding parts "HITALOCK"
-Anode material for lithium ion batteries

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History

Resonac Holdings History (Formerly Showa Denki Co., Ltd.)

Dec. 1908	Established Sobo Marine Products Co., Ltd. for the purpose of manufacturing and selling iodine
Apr. 1921	Established Takada Aluminum Equipment Manufacturing Co., Ltd. (later named Showa Aluminum Co., Ltd.)
Oct. 1926	Established Nihon Iodine Co., Ltd.
Oct. 1928	Established Showa Fertilizers
Mar. 1934	Renamed Japan Iodoine to Nihon Showa Kogyo Co., Ltd.
Nov. 1937	Established Riken Kohaku Co., Ltd. (later Showa Hipolymer Co., Ltd.)
Jun. 1939	Established Showa Denko from both Showa Denki. and Showa Fertilizers
May 1949	Listed on the Tokyo Stock Exchange
Oct. 1962	Established Hitachi Chemical Industry (later renamed to Hitachi Chemicals)
Feb. 1966	Established Chidori Kogyo (currently Kanagawa Business Office)
Apr. 1969	Launch of commercial operations at Oita Petrochemical Complex.
Jul. 1988	Acquired the graphite electrode business from the B.O.C Group in the United States, and established Showa Denko Carbon, Inc. (currently Resonac Graphite America Inc.)
Mar. 2001	Merged with Showa Aluminum Co., Ltd.
Jan. 2003	Acquired the hard-disc business from Mitsubishi Chemicals Group (currently Resonac HD Singapore Pte. Ltd.)
Jul. 2003	Listed as one business on the Tokyo Stock Exchange
Jul. 2004	Invested in Trace Storage Technology of Taiwan, a hard-disc manufacturer, turning it into a consolidated subsidiary (currently Showa Denko HD Trace Corporation)
Jul. 2009	Acquired the hard disk business of Fujitsu Limited (currently Resonac HD Yamagata Co., Ltd.)
Dec. 2009	Turned Showa Gas Co., Ltd. into a wholly owned subsidiary (currently Resonac Gas Products).
Jul. 2010	Merged Showa Hipolymer Co., Ltd.
Sep. 2016	Turned Sun Aroma Co., Ltd., a Synthetic resin polypropylene business, into a consolidated subsidiary
Oct. 2017	Acquired SGL GE Holding GmbH engaged in the graphite electrode business (currently Resonac Europe GmbH)
2020	Acquired Hitachi Chemicals and changed the name to Showa Denko Materials Co., Ltd.
Apr. 2022	Moved from the 1st Section to the Prime Market of the Tokyo Stock Exchange due to the TSE's reorganization.
Jan. 2023	Adopted the corporate name Resonac Holdings, after changing to a holding company. The name of Showa Denko Materials, a consolidated subsidiary, was changed to Resonac. And inherited all of Showa’s businesses.
Jan. 2025	Crasus Chemical Inc. acquired the petrochemical business and commenced operations. (Crasus Chemical is a subsidiary, which was established in August 2024.)