South Korean battery stocks and exchange-traded funds rebounded as capital rotated from paused chip shares, while energy storage systems (ESS) emerged as a growth market beyond electric vehicles. TIGER Secondary Battery TOP10 Leverage gained 45.88% and KODEX Secondary Battery Industry Leverage rose 38.99% over the past month as of the previous session, with their one-week returns ranking first and second among ETFs listed in Korea. Operationally, LG Energy Solution and Samsung SDI increased their combined North American ESS market share to 19.7% in the first half of this year from 13.9% a year earlier, although Chinese companies still held 76%. The North American ESS market reached 75.9 GWh, up 83% from 41.5 GWh a year earlier, as artificial intelligence data centers increased electricity demand. U.S. tariffs, tax-credit sourcing rules and power-grid security measures covering batteries, related equipment and software are raising barriers for Chinese suppliers and may benefit Korean manufacturers with North American production bases.