Practically all servings of popular drinks like teh tarik and kopi/teh ais are prepared using condensed milk, which already contains a lot of sugar. So there is no justification for any rise in prices for these drinks even with the recent 5 sen/kg increase in retail sugar prices.
There is no excuse for condensed milk factories to raise prices either; they should only be using bulk sugar supplies which are not covered by the subsidy. If these factories complain about rising sugar prices, it implies that they are "stealing" from the consumer (retail) supplies of sugar.
The same goes for soft drink and other bottled/can drink factories. They should also be using bulk sugar only. Anyway, a number of these factories have switched to using high-fructose corn syrup as a sugar substitute. So again, there is no justification for any rise in prices.