To support the energy transition policy and ensure the safe deployment of large-scale energy storage systems, the BSMI proposes to expand the scope of mandatory inspection for stationary lithium energy storage systems and secondary lithium batteries intended for use in such systems. Products with a rated energy capacity of 100 kWh or below are already subject to mandatory inspection. Under this proposal, the maximum rated energy capacity covered by mandatory inspection requirements would be increased from 100 kWh to 360 kWh. In addition, the technical requirements for stationary lithium energy storage systems would be revised to align the cyber security and grid interconnection requirements with newly published CNS standards. Secondary lithium battery packs for road vehicle propulsion would remain subject to the existing mandatory inspection requirements, and their inspection scope and technical requirements would not be changed under this proposal.