image found by Valentin Poposki, 30 September 2023
Here are some flags that are made and offered by Flagmaker & Print, claiming that they are unofficial flags of four independent cities and one municipal city in Vietnam. I found them as links from here. The images from that website include Can Tho City (Independent City), Da Nang City (Independent City), Hai Phong City (Independent City), Hai Phong City (different image from Wikipedia), Ho Chi Minh City (Independent City), and Thu Duc City (Municipal City, part of Ho Chi Minh City). Valentin Poposki, 30 September 2023
image found by Valentin Poposki, 25 September 2019
These days I'm searching through some Vietnamese websites looking for anything interesting. I didn't find any flags (yet), but I did make a small, nice collection of Vietnam Provinces emblems. Valentin Poposki, 23 September 2019