Russia could prove to be an unlikely supplier for some Asian countries after the United States issued a temporary waiver of sanctions for its attack on Ukraine. TOKYO: Indonesia's leader visited Tokyo this week in Asia's latest flurry of fuel bartering efforts to offset crippling shortages caused by conflict in the Middle East, a key source of regional energy supplies. The race for alternatives has heated up as China, the world's second-largest economy, imposed fuel export bans, while nations