From Singapore's Business Times, August 25:
VIETNAM’S central bank signed an agreement on Friday (Aug 25) to be part of an initiative by five other South-east Asian countries to establish a cross-border payments mechanisms between them.
Vietnam will join Indonesia, Malaysia, Thailand, the Philippines and Singapore in working to connect each of their payment systems, including using the QR (quick response) code system for retail transactions.
The agreement was made at a meeting of the 10-member Association of South-east Asian Nations (Asean) finance ministers and central bank governors in Jakarta....
....MUCH MORE
In addition to being a de-dollarization move it seems worth pointing out that five of the ten ASEAN member states: the Philippines, Brunei, Malaysia (Borneo), Indonesia and Vietnam, border the South China Sea and China's ridiculous "Nine-dash-line":
Six of ten if you stretch the definition a bit and add Singapore (just south of peninsular Malaysia). In total it is a coalition of some 600 million people and is as much sending a message to Emperor Xi as Japan's Prince Kanenaga did to the Hongwu Emperor when the Emperor demanded obeisance:
"Heaven and earth are vast, they are not monopolized by one ruler.
The universe is great and wide, and the various countries are created each to have a share in its rule.
Now the world is the world's world; it does not belong to a single person...."
—1382 Letter from the Prince to the Emperor via Oxford Journals' Chinese Journal of International Politics, Summer 2012 as previously seen here in 2014 and 2018.
