Labuan District Police Chief, Supt. Adzhar Othman, said the drug, in 28 transparent plastic packers, was found in a blue aluminum container.
"The drug weighs 51.32 grammes with a street value of RM18,000," he said, adding that the duo, if found guilty under Section 39B of the Dangerous Drug Act 1952, faces the mandatory death penalty.
According to him, the two suspects tried to flee and put up a struggle with the police before they were apprehended.
The first suspect, aged 30, has previous convictions, the most recent one was last year and the case, involving possession of drug, is still pending court hearing.
The suspect, a bachelor from Putatan, Sabah, had also served two years at the Simpang Renggam Detention Centre in Johor for drug addiction, said Adzhar.
The other suspect, aged 33, is from Kampung Kilan here and has a Filipina wife with two children.
Commenting on the success, Adzhar said a total of 196 suspects were arrested by police on the island in the first six months this year for various drug offences.