Six major UN powers wound up another exploratory meeting on Monday on proposed sanctions against Tehran for refusing to suspend nuclear fuel work and agreed to meet again on Wednesday (today) after their experts tackle technical issues. “We had a general exchange of views on a number of key difficult issues and we agreed to (have) our experts see whether we can come to agreement to clear those areas,” China’s UN Ambassador Wang Guangya told reporters after the 90-minute meeting at France’s UN mission in New York.