“It is not only the biggest haul for this year, but so far the biggest in history,” Philippines Justice Secretary Vitaliano Aguirre told reporters at a news conference in Manila on Tuesday.
Another 290 gallons (1,110 liters) of the drug in its liquid form were confiscated.
The operation was the result of a four month probe by the country’s National Bureau of Investigation after receiving a tip about a Chinese organization manufacturing and distributing illegal drugs, according to a press release.
Three Chinese nationals and seven Filipinos were arrested in the raids, the NBI said.
According to the Philipines’ Dangerous Drugs Board, there are 1.3 million drug users in the country, which has a total population of 100 million people.
Tackling rising drug consumption and production was one of Philippines’ President, Rodrigo Duterte’s key campaign planks during the country’s elections earlier this year.
Duterte promised to vigorously combat the problem in his country and has waged a bloody campaign against the drug trade since his winning the presidency.
“These are mass murders,” Senator Leila de Lima, one of Duterte’s top critics, told CNN. “High crime is a ground for impeachment under (the) constitution.”
“Where before there was no respect for the law, now there is,” Dr. Lorraine Badoy, a Filipina NGO worker and Duterte voter, told CNN in an interview in October.
Pamela Boykoff reported from Manila and Joshua Berlinger wrote from Hong Kong. CNN’s Sandi Sidhu contributed to this report.