Labour utilisation during Tet and peak export weeks

Peak weeks around Tet and major export windows break the assumptions baked into many labour charts. Temporary crews inflate headcount while training time is invisible. Overtime hours look productive until error rates rise on the night shift.

We recommend tracking three labour measures in parallel: productive hours on task, training and induction hours, and rework hours from mis-picks. A single utilisation percentage hides the training burden that temporary crews create.

Compare the same weekday across the three weeks before the holiday and the two weeks after. Supply chain KPI tracking that ignores the holiday shape will flag healthy sites as underperforming simply because the calendar changed.

Share the chart with floor supervisors before finance sees it. Supervisors can annotate known events — a delayed container vessel, a power cut, a safety drill — so the reading stays fair.