Hi Noel,
They have Soya Milk (Indobrand) at Matahari in the fridge section. Itlooks good. It's called Good Hope. It's 1 litre and is 13.900. They also had flavoured ones.
They had some at Supernova but it looked a bit second hand.
Looking forward to meeting you. I will go to the school on the 15th also. But i'll see you on the 13th at THE unofficial meeting.