Tehran ? Iran said Thursday it would reply Aug. 22 to the Western incentive package to stop enriching uranium, but it also issued a veiled threat, indicating Tehran will not accept any deal that dilutes its nuclear program.

The statement by the Supreme National Security Council was Iran’s first mention of a precise date after weeks of being accused of stalling.

The permanent members of U.N. Security Council plus Germany offered Iran a package of incentives June 6 to persuade it to suspend enrichment – a process that can produce material for atomic weapons as well as fuel for reactors.