Japan's Mitsubishi Chemical said it would take at least two months to resume operations at two naphtha crackers in eastern Japan after a massive earthquake damaged some infrastructure and equipment at the compan's Kashima plant.

All operations at the Kashima facility have ceased, the company, a unit of Mitsubishi Chemical Holdings, said in a statement on Wednesday.

The following details the company's naphtha crackers in Japan. Ethylene production capacity is in 1,000 tons per year.

Plant             Ethylene capacity
Kashima 1       375
Kashima 2       453
Mizushima       450