Petro Rabigh expects to start up its phenol/acetone plant in the first quarter of 2017. The plant, part of PetroRabigh's phase II expansion in the industrial city of Rabigh, will be able to produce 275,000 tones/year of phenol and 160,000 tones/year of acetone. The timing of the start-up has been pushed back from the second half of this year.