ABOUT RCHD
HISTORY
| October 2021 | Riken Anodized Aluminum Industries, Ltd. made Former Kanto Chemical Industry Co. |
|---|---|
| January 2022 | Establishment of RC Holdings, Inc. RC Holdings acquires Riken Anodized Aluminum Industries and Former Kanto Chemical Industry as subsidiaries. |
| June 2022 | Former Miyako Seiki Co., Ltd. joins the group |
| February 2023 | SANEI CO., LTD. enters the group umbrella |
| October 2023 | Former Oi Technica Corporation and Former Soltec Corporation join the group. |
| January 2024 | Former Katsumikosha Corporation joins the group |
| January 2025 |
Riken Anodized Aluminum Industry Corporation (President: Tsubasa Ueno) absorbs Kanto Chemical Industry Corporation and Shoko Co. SANEI CORPORATION (President: Tsubasa Ueno) absorbs Miyako Seiki Corporation, Soltec Corporation, and Oi Technica Corporation. |
| July 2025 | Absorbed Sanei Co., Ltd. |


