Some establishment feels that it is unnecessary to have the Halal stamp like gerais and roadside restaurants.
Have you been to malay stalls lately? Ever check their kitchens? It is a habit of mine to go to the toilet after eating and I notice that the toilet is always next to the kitchen. Gerai kitchens are always nearby open drains and the plates are washed on the floor. It didn't matter to me that the owner and cooks are malays because under the mentioned conditions, the gerai might as well serve pork.
I remembered Atok's self-made acronym: Ha, To, Ba. HTB in rummi.