| 1927-01 |
Founded Japan Brake Lining Works in Ryuge-cho, Nakakawachi-gun, Osaka Prefecture (now Yao City) to manufacture and sell brake linings for automobiles and various high-speed machinery. |
| 1932-04 |
Started production of industrial packing and established Japan Balka Industries Co., Ltd. |
| 1932-04 |
Founded Japan Balka Industry Co., Ltd. and started production of industrial packing. |
| 1941-06 |
Started manufacturing synthetic rubber gaskets and joint sheets for aircraft. |
| 1943-10 |
Absorbed and merged Japan Metal Gasket Industry Co., Ltd., and began manufacturing metal gaskets for fuel industry. |
| 1952-02 |
Completed research on processing technology for fluororesins, first in Japan to commercialize, and started production and sales under the product name "Valfron". |
| 1962-09 |
Listed on the Second Section of the Tokyo Stock Exchange. |
| 1975-09 |
Listed on the First Section of the Tokyo Stock Exchange. |
| 1985-08 |
Established Kyushu Balka Co., Ltd. (now a consolidated subsidiary) in Kaho-gun, Fukuoka Prefecture (now Iizuka City). |
| 1988-07 |
Established a joint venture, VALQUA INDUSTRIES (THAILAND), LTD. (now a consolidated subsidiary) in Thailand. |
| 1989-04 |
Absorbed and merged Okafuku Trading Co., Ltd. |
| 1993-11 |
Established Nara Factory in Gojo City, Nara Prefecture, and started manufacturing high-performance rubber products. |
| 1995-08 |
Established Shanghai Balka Fluororesin Products Co., Ltd. (now a consolidated subsidiary) in China. |
| 1996-03 |
Nara Factory received ISO 9002 certification. |
| 1998-06 |
Established VALQUA AMERICA, INC. (currently a consolidated subsidiary) in the United States. |
| 2000-03 |
Established Valqua SE Co., Ltd. in Ichihara City, Chiba Prefecture, and Taiwan Valqua International Co., Ltd. (currently a consolidated subsidiary) in Taipei City, Taiwan. Capital participation in Taiseki Kizai Co., Ltd. |
| 2000-03 |
Established Balka SES Co., Ltd. (now a consolidated subsidiary) in Ichihara City, Chiba Prefecture (now Shinagawa Ward, Tokyo). |
| 2000-03 |
Participated financially in Taisei Equipment Co., Ltd. (now Balka Tech Co., Ltd., a consolidated subsidiary). |
| 2000-03 |
Established Taiwan Balka International Co., Ltd. (now a consolidated subsidiary) in Taipei, Taiwan. |
| 2000-12 |
Established Valqua Seal (Shanghai) Co., Ltd. (currently a consolidated subsidiary) in China. |
| 2001-07 |
Nara Factory received ISO 14001 certification. |
| 2002-09 |
Established Valqua (Shanghai) Trading Co., Ltd. (currently a consolidated subsidiary) in China. |
| 2002-10 |
Nara Factory received ISO 9001 certification. The production division was spun off as Valqua Seal Solutions Co., Ltd. (currently a consolidated subsidiary) through a simplified corporate split. |
| 2002-10 |
Nara Factory obtained ISO 9001 certification. |
| 2002-10 |
Established Balka Seal Solutions Co., Ltd. (now a consolidated subsidiary) through a company split of the production division (Nara Factory). |
| 2004-03 |
Established VALQUA KOREA CO., LTD. (currently a consolidated subsidiary) in South Korea. |
| 2006-01 |
Established M.R.T Center in Machida City, Tokyo, as a core base for functional resin products business and human resource development. |
| 2007-12 |
Relocated and integrated the headquarters and Tokyo branch from Nishi-Shinjuku, Tokyo, to Osaki, Shinagawa Ward, Tokyo. |
| 2008-04 |
Established VALQUA VIETNAM CO., LTD. (currently a consolidated subsidiary) in Vietnam. |
| 2010-04 |
Acquired additional shares of Iida Packing Industry Co., Ltd. (now Valqua Metal Technology Co., Ltd.). |
| 2010-04 |
Acquired additional shares of Iida Packing Industry Co., Ltd. (now Balka Metal Technology Co., Ltd., a consolidated subsidiary). |
| 2011-12 |
Acquired shares of Fuji Fine Technology Co., Ltd. (now Valqua F.F.T. Co., Ltd.). |
| 2011-12 |
Acquired shares of Fujimi Fine Technology Co., Ltd. (now Balka FFT Co., Ltd., a consolidated subsidiary). |
| 2013-03 |
Started power sales using solar power systems at Kyushu Valqua Co., Ltd. |
| 2017-02 |
Acquired shares of NISSHIN GULF COAST, INC. in the United States. |
| 2017-02 |
Acquired shares of NISSHIN GULF COAST, INC. in the United States (now VALQUA NGC, Inc., a consolidated subsidiary). |
| 2017-11 |
Established VALQUA INDUSTRIES SINGAPORE PTE. LTD. in Singapore. |
| 2017-11 |
Established VALQUA INDUSTRIES SINGAPORE PTE.LTD. in Singapore (a consolidated subsidiary). |
| 2018-10 |
Changed the company name to Valqua Co., Ltd. |
| 2021-10 |
Relocated and newly established the factory of Taiwan Valqua International Co., Ltd. in Kaohsiung City, Taiwan. |
| 2021-10 |
Relocated the factory of Taiwan Balka International Co., Ltd. (a consolidated subsidiary) to Kaohsiung City, Taiwan. |
| 2022-04 |
Transitioned to the Prime Market due to a review of the market classification by the Tokyo Stock Exchange. |
| 2022-04 |
Transitioned from the First Section of the Tokyo Stock Exchange to the Prime Market following a review of market classification. |
| 2022-08 |
Transferred 51% of the investment in Shanghai Valqua Fluororesin Products Co., Ltd., renamed Shanghai Water Hua Semiconductor Technology Co., Ltd. |
| 2022-08 |
Transferred 51% of the investment in Shanghai Balka Fused Fluoropolymer Products Co., Ltd. and renamed Shanghai Water Hua Semiconductor Technology Co., Ltd. (a related company accounted for by the equity method). |
