Rosatom prices its return to Bushehr at 42 people, six percent of the crew it pulled out

Six percent of the pre-evacuation Russian contingent is on site ^[1]. Take the autumn plan at face value and it is still about 14 percent ^[2]. Those two figures are what Rosatom is willing to put back into a place its own chief executive describes as calm ^[4]: enough hands to keep critical work moving, not enough to lose if the calm does not hold.

The exit is the design constraint. By the account of the return, April taught Rosatom that moving hundreds of workers out of a remote coastal site in southern Iran is complex and time-sensitive, and that a manageable headcount gives Moscow an easier way out ^[11]. Evacuating 42 people is a different order of logistics problem from evacuating 700, and the smaller number buys optionality that no contract clause can.

The cost lands on the build schedule. Iranian contractors carried on after the pullout at a reduced pace, with the absence of Rosatom's engineers named as the clear bottleneck ^[8]. With 658 of the roughly 700 Russian specialists still away ^[4], most of that bottleneck is still in place. Roughly five and a half months after the military operations that triggered the withdrawal ^[5], there is a staffing target and no revised completion date for units 2 and 3.

The one finished reactor kept running at full capacity through all of it ^[12], which is the useful contrast: operating a completed unit needs a fraction of the foreign labour that commissioning two more does. Before the pullout, the Russian team was the largest contingent of Russian nuclear workers at any single foreign project ^[9] and accounted for roughly 23 percent of everyone on the site ^[3]. That is how much of the expansion sits on one foreign payroll, and how little of the operating plant does.

The reporting reaches us through cryptobriefing.com, crediting the Jerusalem Post ^[13], and its timeline puts the escalation of US and Israeli operations at February 28 with the evacuation of more than 600 staff complete by April ^[10]. It contains no cost of delay, no contract remedy, and no new in-service date. What it does contain is a state-owned contractor with sovereign backing choosing to re-enter at six percent strength ^[1] and declining to commit beyond autumn ^[2]. Anyone modelling nuclear construction anywhere in the region now has a benchmark for how a builder behaves after strikes near its site: it returns, slowly, with the number of people it can move again on short notice.