On June 1, Thunder Corporation purchased umbrellas from Lightning Corporation with term 3/15, n/30, FOB destination. The shipping charges are going to be $250 and the shipping company is Storm Inc. Thunder purchased 1,000 umbrellas for $2 each umbrella and plans to resale them for $3.50 each, while Lightning Corporation had originally purchased the umbrellas for a total of $1,200 earlier. In this Situation, who is the seller of the Umbrellas on June 1?