According to Heyuan Gas's announcement, it recently obtained an invention patent called “a process and device for preparing ultra-high purity carbonyl sulfur from industrial carbonyl sulfur”. The patent number is ZL202310131661.7. The application date is February 15, 2023, the authorization announcement date is December 9, 2025, and the certificate number is No. 8564070. The patent can solve the defects of poor purity and incomplete distillation effect of existing technical products. This patent will not have a significant impact on the company's production, operation and performance, but it will benefit the company's development in the field of ultra-high purity gas preparation technology.

According to Heyuan Gas's announcement, it recently obtained an invention patent called “a process and device for preparing ultra-high purity carbonyl sulfur from industrial carbonyl sulfur”. The patent number is ZL202310131661.7. The application date is February 15, 2023, the authorization announcement date is December 9, 2025, and the certificate number is No. 8564070. The patent can solve the defects of poor purity and incomplete distillation effect of existing technical products. This patent will not have a significant impact on the company's production, operation and performance, but it will benefit the company's development in the field of ultra-high purity gas preparation technology.