DUBAI, June 2 (Reuters) – Iran is poised to reject a U.S. Proposal to end a decades-old nuclear dispute, an Iranian diplomat said on Monday, dismissing it as a “non-starter” that fails to address Tehran’s interests or soften Washington’s stance on uranium enrichment.

“Iran is drafting a negative response to the U.S. proposal, which could be interpreted as a rejection of the U.S. offer,” the senior diplomat, who is close to Iran’s negotiating team, told Reuters.