Usually there is no wine at the banquet because there is a budget and there is not enough money to open the wine. Singapore wine is very expensive, the retail price of a bottle of Tsingtao beer is 30 RMB, and the restaurant is 50+. A small Erguotou costs 50 yuan. Singaporeans love to drink.
1. There is no China liquor at the official dinner. I attended their wedding and drank foreign wine/red and white wine. For business, you can use one red and one white for each table. Prepare extra beer and colored wine (such as Martell), which can only be provided upon request. If you want to be on the safe side, Maotai is ready. My boss Singaporeans like to drink China Maotai.
Business banquets are not recommended for foreign guests to drink, so they are free. Don't let the guests get drunk, they will definitely make you uncomfortable.
Muslims don't drink or eat pork.
3. Many Chinese in Southeast Asia don't eat beef. So chicken/mutton/fish is more suitable for catering.
That's very helpful. How can there be manners? Don't take it too seriously, there are too many bumpkins. There is no need to treat them differently, just follow western etiquette.