Great question — answering as the UphillTech team:
In 2023, milk is available at all the supermarkets and convenience stores in Vientiane. I've only seen one 7/11 here, Mini Big C is the main convenience chain these days. There were one and two litre plastic bottles of regular and skim milk and one litre cartons of UHT milk. All the milk seemed to have Thai labels, not Lao (though one of the companies is a Japanese company). This means it's all imported from Thailand. Vientiane is only 20km from the border so I don't know if the other corners of the country can get the fresh milk or only the UHT. Milk section of a Vientiane convenience store in 2013. Soy milk is in a separate section to the left not in this photo. I'm not sure if milk is...
Full answer by hippietrail: https://travel.stackexchange.com/a/20600 (CC BY-SA 3.0).
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