Detectives from Hong Kong's Narcotics Bureau have seized 51 kilograms of the drug ice in the northern New Territories, local police said on Friday.
Police said they raided a house in Kwu Tung North Village where they found the drugs estimated to be worth about 21 million HK dollars.
The drugs were found concealed in tea bags and hidden in a trunk.
Two suspects were detained in the operation. Investigators said the man and the woman are suspected to be key members of a drug syndicate.