Iranian ambassador to japan Morteza Rahmani Movahed and President of the House of Councillors of Japan Chuichi Date in a meeting on Thursday emphasized on developing mutual relations.
The largest Japanese oil wholesaler is considering to resume Iran oil imports, Head of JXTG Yasushi Onoda said.
Iran's president calls for further cooperation in separate meetings with Japan and Qatar ambassadors on Tuesday.
Japan's new ambassador to Iran Mitsuo Saito submitted a copy of his credentials to Iranian Foreign Minister, Mohammad Javad Zarif on Monday.
Japan's Finance Minister Taro Aso asked his US counterpart Steven Mnuchin to ensure Japanese firms are not hurt by Washington's unilateral sanctions against Iran.