(I must admit that I didn't previously know the word "cendol". In a piece aimed at a general English-speaking audience it would perhaps be a good idea to explain what it means.)
Vincent TeoShe opened the stall under the tree yesterday.
OK.
(The meaning is ambiguous though. It could mean that she started up in business yesterday, or it could mean that she's been running the stall for some time, and just happened to be open yesterday.)