Renault Korea Motors is facing uncertainties about its plan to manufacture 200,000 electric vehicles (EVs) in Busan annually, as battery makers here remain reluctant to increase their domestic production, according to industry officials, Monday. During Renault Group Senior Vice President Francois Provost s recent closed-door meeting in Korea with Prime Minister Han Duck-soo, the French firm s executive is said to have complained about difficulties securing enough EV batteries here.