The Humane Society is working on this issue.
http://www.hsus.org/hsi/confronting_cruelty/philippines_dog_meat/The majority of Filipinos do not consume dog meat. However, a city in the north called Baguio, and surrounding areas in Benguet Province, still has a demand for the product. Most of the dog meat trade is on the black market, with dogs rounded up in locations south of Manila and shipped to the north.
The transporters and the slaughterhouses for the dogs are hard to locate, but the meat is openly sold in markets and in a number of restaurants in Baguio.
Sellers are aware that it is illegal, so they are secretive in their dealings. When investigators inquired about the type of meat that was being sold by a dog meat vendor at the market, he responded, "goat meat."
HSUS recommends writing to the mayor of Baguio
https://community.hsus.org/campaign/hsi_ph_dog_meat_baguio