Police say the 1,000 sq ft facility in Shek Wu Wai is believed to have been operational for about one to two months.

Those possible alternatives to MTBE are ethyl tertiary butyl ether, or ETBE, and tertiary amyl methyl ether, or TAME. However, their safety has yet to be determined, Barreto says. "Rather than trying ...

The facility was filled with drugmaking equipment and chemicals, including pseudoephedrine, dichloromethane and ethyl ether believed to be used in the production of Ice, or methamphetamine.