Major powers turned over to the 15-nation UN Security Council on Thursday details of energy and economic incentives they offered to Iran if it suspends its nuclear ambitions and stops uranium enrichment. The three-page incentive package, which had not previously been published in full, includes a pledge to "actively support" the building of new light water power reactors in Iran. Iran has not responded to the offer, made in June. In response, the key negotiators — Germany, the United States, Britain, France, Russia and China — referred the issue back to the council in a meeting in Paris on Wednesday. The 15-member body will attempt to adopt a resolution next week that would make the suspension mandatory. If Iran still does not comply, the six nations said they would consider sanctions against Tehran. "I think the first step ... is we will move to make mandatory the requirement that Iran suspend its uranium enrichment activities with some reasonably short time fuse on that," US Ambassador John Bolton said. "And that then would be followed by looking at targeted sanctions," Bolton said. "We hope to move as quickly as possible, possibly within the next few days — but realistically early next week.