A couple more things I've noticed on my visits. Trucks and work vans allow people to ride in the back unsecured. They'd never let real citizens do that in their safer cars.
The airport had an entire separate processing line for the plane from Bangladesh one time when I visited.
I once arrived late at night when the newer terminal was being finished, and leaving the carpark saw rows and rows of shoes. The workers were all sleeping under the carpark exit ramp in the open air.
Those dorms mentioned caused some issues when COVID ripped through recently too.
Yes, most laborers are working off a debt to their agent. Confiscating passports is technically illegal, but very common in practice.
Safety regulations are tighter than in the Middle East, although still lax by the standards of most other developed countries.
People can report labor rights violations to the government, which sometimes even investigates them and takes action. But they are mostly content to turn a blind eye unless something is very egregious, and labor rights NGOS are understaffed and underfunded. And strikes are effectively illegal.
Unlike in the Middle East you can leave the country without your employer's permission, but this might be easier said than done in a lot of cases.
So, more indentured servitude than slavery. Still not great.
In dubai/qatar they just do it more and worse and also like to confiscate their passports (although technically thats illegal now...).
It kind of does. They import Bangladeshi construction workers to build all the glitzy skyscrapers and infrastructure and shove them in dorms 16 to a room.
Im not sure if they confiscate their passports or not like in Dubai but i think they still do those contracts where they have to pay an agent and work off their debts.
A fair number die because of lax health and safety that is lax because theyre "only banglas".
If there are differences in how theyre treated vs dubai theyre more a matter of degree than character. Theyre very much at the bottom of singapore's racial hierarchy.
Theres the occasional case of maid slavery as well.