Is E476 halal?
E471 is not haram if it is plant based. E471 can arrive from
plant or animal.
However, to know if it arrives from animal or plant, that is not
easy as most of the time, the food product that we buy won't
mention the source of E471.
For more information, go to :
http://www.veggieglobal.com/nutrition/non-vegetarian-food-additives.htm
So, the conclusion here is, E471 can be halal, it can be haram.
It all depends on its source. =)