News&Events 2025.05.29 2025.06.06 news 2025/9/10-2025/9/12, the group will exhibit at the China International Optoelectronic Exposition (CIOE 2025). 2025.06.05 news In May 2025, the official website of Japan Tosei Sangyo Co., Ltd. was launched. 2025.06.05 news On October 25, 2019, Japan Tosei Sangyo Co., Ltd. was established.