Prawit Wongsuwan says violence in the three southern provinces had decreased by 60 percent since the junta took power.
China hopes Manila can meet China halfway and handle the disputes appropriately.
The Indonesian President says the legal process will be followed up by Attorney General M. Prasetyo.
China says the drills are aimed at strengthening cooperation and not targeted to any other country.
Japan, South Korea and the United States asks China to persuade Pyongyang to comply with UN sanction resolutions.
Authorities say both the nations will carry out defence, rescue and anti-submarine operations, as well as "island seizing" and other activities.
Duterte announces that Beijing had promised to help in building drug rehabilitation centres for the treatment of Filipino crystal meth users.
Mynamar leader Aung San Suu Kyi thanks China for its initiative in the peace process of Myanmar.
The RSS Steadfast along with the People's Liberation Army (Navy) Jiangkai II-class frigate CNS Jingzhou will hold a half-day drill.
Indonesia is known to have some of the toughest drug laws in the world.
President Rodrigo Duterte says lawless elements like terrorists were already "beyond redemption."
Chinese authority says peace and stability in South China Sea was directly related to prosperity and development of countries in the region.
Philippines defence minister, who is at the summit in Vientiane, orders the release of photographs.
Defence Secretary Delfin Lorenzana says a Philippines air force plane spotted more boats than usual in a flotilla on Saturday.
President Duterte is scheduled to meet US President Barack Obama at a regional summit in Laos on Tuesday.