BNN Bloomberg is Canada’s definitive source for business news dedicated exclusively to helping Canadians invest and build their businesses. HONG KONG — Oil prices gained Wednesday and Asian shares were mostly trading lower as South Korea’s Kospi extended its losses after falling more than 16 per cent over the past two days led by artificial intelligence-related stocks.Crude prices remain volatile after the U.S. said early Thursday it had conducted a “heavy wave” of strikes against Iran, responding to an attack on a U.S. base.U.S. futures edged higher after losses on Wall Street.In South Korea, recent drops in its benchmark Kospi,…