Aliexpress
Click here… to search for Xiaomi Mi Notebook Pro i7-8550U 16/256GB GTX1050Max-Q on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (1099.99 USD): BGBINKUPON911
Coupon (1099.99 USD): BGXMGB2
Coupon (1119.99 USD): BGXMPX6
Coupon (1196.99 USD): BGBFCR28
Coupon (1196.99 USD): BGCITYADS2019
Coupon (1309.99 USD): Wholesale20
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Old coupons (from the oldest to the newest): 10MIQ16, 19BG55Q, 1925MAX5Q, 6OFFXM, TECH8%, 19311MAX5Q, 19325MAX5Q, LOWMAX5Q, BGXM911, BGXM875, BGXN1124, aff7off, BGJL3D02, BGXMP911, BGOPCOUPON002, BGXM6798, affiliate6, BGXMP8550UU, BGESMPR550U, BGXMP550U, BGXM850U, BGXM850U1, BGXMPR1, BGXMPR2, BGXMPR3, BGXMPR8, BGXMPR9, BGNOTEBOOKPL, BGXMPX1, BGXMPX2, BGXMPX5, BGXMPX3, BGXMPX4, BGLAPXM1101
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for Xiaomi Mi Notebook Pro i7-8550U 16/256GB GTX1050Max-Q is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).