Longitudinal tear detection adds another successful case:

1. The longitudinal tear detection device installed in Yulong mine of Tibet by our company successfully detected the longitudinal tear accident at 18:42 on August 6, 2022, and timely alarmed and shut down.

2. The longitudinal tear detection device installed in Graphene Mine in Tibet successfully detected the longitudinal tear accident at 17:07 on March 5, 2023, which led to timely alarm and shutdown.