South Korean petrochemical firm Hanwha Total Petrochemical will reduce operating rates at its styrene monomer (SM) plant tomorrow because of weak margins.
The company is expecting to reduce operating rates at its SM unit by 20 percentage points to 80pc. Any plan to ramp up operating rates will depend on the margin situation.
South Korean SM buyers plan to purchase from other domestic producers to make up for the potential fall in supplies, citing sufficient local inventories. South Korea has four other SM producers — LG Chemical, Lotte Chemical, SK Global Chemical and YNCC — besides Hanwha Total Petrochemical.
Hanwha Total Petrochemical owns a 1.05mn t/yr SM unit in Daesan. The company also owns a cracker facility that feeds on LPG and naphtha and can produce 1.55mn t/yr of ethylene. Its petrochemical facility in Daesan can produce up to 1.2mn t/yr of benzene.
SM production margins have been on a decline, primarily because of expectations of increased supplies in December. The start-up of Chinese private-sector petrochemical producer Wanhua Chemical's 650,000 t/yr SM plant and the restart of state-controlled Sinopec Baling's 120,000 t/yr SM unit account for some of the additional supplies.
SM production margins were estimated at about $207/t on 10 November, about 35pc lower than $320/t in early June, according to Argus data.
South Korea's LG Chemical embarked on a review of its benzene derivative assets last week. The company operates 170,000 t/yr and 500,000 t/yr SM units in Daesan and Yeosu respectively. It also runs two 400,000 t/yr cumene plants in Daesan and Yeosu.

