Uh, so they have a Nuclear Energy program that allows them to produce highly enriched uranium and to subsequently extract plutonium from that used fuel.
All they then need is an implosion trigger, something any college engineering student can make.
Sure, it’s not a miniature warhead, but if they can get it under 1,000lbs they can get it aloft on a missile.
So, yeah, it’s a nuclear weapons program because it’s an effort to master the nuclear cycle.
On December 2, 2015, the IAEA issued its final report on Iran’s alleged weaponization efforts, concluding that Iran had a coordinated nuclear weapon-related program until 2003, and that some weapon-related activities continued through 2009. The IAEA report disclosed that Iran did not provide new information or meaningful information for most of the 12 outstanding issues in the IAEA’s investigation. To many of the Agency’s questions, Iran offered no new information, or made denials without explanation, or gave explanations contradicted by other information available to the Agency. Nonetheless, the IAEA Board of Governors voted unanimously to close the Agency’s investigation on December 15, 2015.