Ohio Workers Vote to Unionize at GM, LG Battery Plant

General Motors Chief Executive Mary Barra, United Auto Workers (UAW) President Ray Curry, and Secretary of Labor Marty Walsh watch as President Joe Biden delivers remarks after touring the General Motors 'Factory ZERO' electric vehicle assembly plant in Detroit on Nov. 17, 2021. Jonathan Ernst/Reuters

WASHINGTON—Workers at a General Motors-LG Energy battery cell factory in northeast Ohio overwhelmingly voted to join the United Auto Workers (UAW), a big win for the union seeking to organize the growing electric vehicle supply chain sector.

The National Labor Relations Board said hourly employees at the Ultium Cells LLC plant near Cleveland voted 710 to 16 in favor of joining the union.