Overview and History of the Company

About us

Overview

Company Name	Resonac Ceramics Corporation
Establishment	November 20, 1985
President	Makoto Iizuka
Fiscal year end	December
Capital	460 Million Yen (As of January 4, 2023)
Number of Issued Shares	9,200 Shares (As of January 4, 2023)
Shareholder	Resonac Co.,Ltd.
Employees	356 (As of January 1, 2023)
Executive Officers (As of December 1, 2023)	Representative Director Makoto Iizuka Director Takayoshi Komiya (Part Time) Director Naoya Takahashi (Part Time) Director Tsuneyoshi Kuriyama (Part Time) Audit & Spervisory Board Member Saki Tajima (Part Time)
Locations	Head Office / Shiojiri Plant Address 1 Soga, Shiojiri-shi, Nagano Prefecture 399-6461 Employees 159 (As of January 1, 2023) Area 300,000㎡ Toyama Plant Address 3-1 Nishinomiya-machi, Toyama-shi, Toyama Prefecture 931-8577 Employees 142 (As of January 1, 2023) Area 210,000㎡ Yokohama Plant Address 8 Ebisu-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture 221-8517 Employees 61 (As of January 1, 2023) Area about 140,000㎡^{Note 1} Note 1 Site area of Resonac Yokohama office.
Business Activities	Production and sale of abrasives, refractory materials, ultra high pressure products, fine ceramic compacts, filler materials, titanium dioxide, and abrasives for glass.

October 1933	Nichiman Aluminum Co., Ltd. started to produce aluminum.
October 1943	Showa Denko K.K. acquired Nichiman Aluminum Co., Ltd, and renamed it as Toyama Plant.
October 1946	Production of carbide and lime nitrogen fertilizers started.
Aprill 1959	Production of high carbon ferro-chromium started.
August 1969	Production of high carbon ferronickel started.
January 1983	Production of fused silica started.
November 1983	Production of titanium sponge started.
January 1987	Production of spherical alumina started.
July 1988	Production of high purity titanium dioxide started.
March 1994	Entrusted to produce air separation units.
May 2003	Received ISO14001 certification.
July 2011	Received OHSAS18001 certification.
January 2014	Showa Titanium Co., Ltd. changed corporate name to Showa Denko Ceramics Co., Ltd. Head office was relocated to Shiojiri. Shiojiri Plant was established. (Contract work from Showa Denko K.K.)
October 2014	Production of Shorox started through acquisition of Tohoku Metal Chemical Co., Ltd.
October 2015	Yokohama Plant was established. (Contract work from Showa Denko K.K.)
January 2023	Showa Denko Ceramics Co., Ltd. changed corporate name to Resonac Ceramics Corporation