Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – Xiaomi Mi9 6/64GB Global Blue (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong.
Link: Banggood product page
Coupon (296.99 USD): BGAFF10OFF
Coupon (324.99 USD): 7d18f7
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): plfonall, 4BGM964, 4BGM964NE, 5BGM964, BGGR7LB, BG5M964, BG5M9G, BGkodmi9, BGMI964, BG5M96G, BG6M96G, BG6M96G5, BG6X964, BG6X966, BGM9GG, BGPLMI9, BGM9GGES, affiliate6, BGM9GGES2, BGM9618, BGUK6, aff7off, BG7SM9Y, bgssaff9, BGletnimi9, BG7SM9, BG7SM964, BGPUREMI964, BG8SM964, BG8XE964, BGMSFH, BG88964, BG8M964CC, od7off, BGM9864, BGM9GV, BGM964C, BGaDmITAd, BG13thplmi9, BGM9G64, BGM964C2, BGpl64gmi9, BGM964CL, 7bcdf9, BGM964EU7, BGM964EU8, 2880c7
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – Xiaomi Mi9 6/64GB Global Blue (-3 USD)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Mi9 6/64GB Global Black? There we go.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).