@aneeso This looks to be responsible for the drop in A2 stage 3 (single and double tin sales).
https://detail.tmall.hk/hk/item.htm...17e0ee083cfa297c769&user_id=2555064063&is_b=1
Looks like buyers have decided to buy 6 tins at a time now. Works out to be 190 yuan per tin which is cheaper for them. At around 300 sales over the last 30 days, its equivalent to 1800 tins.