This one was done by ISEAS-Yusof Ishak Institute a research institute established by the government of Singapore.
Organizers sent the survey late last year to government officials, academics, and other stakeholders from the 10 countries comprising the Association of Southeast Asian Nations (ASEAN).
Here are some interesting tidbits from the report. First, the nations’ overall concern about the situation in the South China Sea:
Notice that—even concerns about a US-PRC confrontation are a distant 3rd to concerns about the PRC’s misbehaviors. And of those 12.5% concerned about our own military presence, Singapore (6.3% [of those 12.5%]), Vietnam (4.6%), and the Philippines (4.5%) have little qualms about it. These are the nations most directly threatened by the PRC’s acquisitive adventurism.