SEOUL :South Korea's Samsung SDI is discussing supplying ESS (Energy Storage System) batteries to Tesla in an order reported to be worth around 3 trillion won ($2.11 billion) or more, but nothing had been decided, the battery maker said in a regulatory filing on Tuesday. 

South Korean newspaper Korea Economic Daily said on Monday that Samsung SDI had reached an agreement to supply Tesla with ESS batteries over three years.

Tesla did not have an immediate comment.