Shanxi Province-based Chinese state-owned coal mining conglomerate Shanxi Coking Co., Ltd has announced that it has received a notice from the environmental protection bureau of Hongdong county, Shanxi, requiring it to extend its coke carbonization period to at least 48 hours, which will have the result of reducing its coke output. The measure will remain in effect from February 16 to March 31. Accordingly, its outputs of coke and of associated chemical products during the given period will be reduced by 220,000 mt and 44,500 mt, respectively, which is foreseen to result in a drop of RMB 487 million ($71.9 million) in its sales revenues.