have worked with malay someone who get stuff cheaper from chinese distributor than local chinese do years ago. in fact i also bought some stuff cheaper than local chinese get (only some specific items i think, but those stuff i regularly buy) I also make a point of giving kuih raya every raya. and have long chat with 80+ auntie whenever she's sitting in the shop (everyone else tend to be rushing around because its a busy shop.) Have also bought stuff cheaper from indian guys than they sell to indian guys.

source cheaper than local chinese? can be done lah. but don't come in like malay warrior booming rah rah rah watching 20-30 year old male malay in chinese shops makes me ashamed sometimes.