The Hungarian plant which caused a toxic sludge leak has reopened as villagers forced to abandon their houses begin to return home.
Dozens of homes in the village of Kolontar, the closest to the plant, were made uninhabitable by the sludge.
Nine people died following the spill that devastated towns and rivers in the west of the country.
Over the past few days, a system of dykes has been constructed to protect Kolontar from a possible second spill.
Some 30 people were taken to Kolontar from the nearby town of Ajka, where evacuated residents had been staying.
They will live on the higher ground, further from the path of the tide of mud from the broken reservoir.