The length of the maintenance is currently unclear.
The site is ExxonMobil's largest integrated petrochemical complex globally and has a 1.9mn t/yr ethylene production capacity, together with downstream units producing polymers.
The complex is also home to the Singapore Aromatics Recovery No.1 plant that has the capacity to produce 530,000 t/yr of paraxyelene, 580,000 t/yr of benzene, as well as 380,000 t/yr of toluene.
By Kate Lee