The Siam Cement Public Company Limited (SET: SCC) has informed the Stock Exchange of Thailand that following the assessment of all operational and safety aspects, the olefins plant of Rayong Olefins Co., Ltd. (ROC) has successfully commenced its plant start-up on September 17, 2026.
On March 10, 2026, SCC announced the temporary shutdown of the ROC olefins plant due to the situation in the Middle East, which limited the procurement of naphtha and propane, key raw materials for the production of the plant.
At the time, the company expected the temporary shutdown to incur a fixed cash cost of approximately THB 150 million per month.
