Aliexpress
Click here… to search for Xiaomi Mi Notebook Pro i5-8250U 8/256GB 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 (1079.99 USD): BGCITYADS2019
Coupon (1179.99 USD): Wholesale20
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Old coupons (from the oldest to the newest): 10MIQ8, 19BG25Q, TECH8%, 5BG825Q, BG825Q, BG825UQ3, BGXM06, aff7off, BGXM418, BGXMP718, BGMIPR250, affiliate6, BGXMMP156, BGXMPP250U, BGXMA417, BGXMA4171, BGXMP2, BGXMP4, BGXMP5, BGXMP6, BGXMP9, BGXMMZ1, BGXMMZ2, BGXMMZ3
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Mi Notebook Pro i5-8250U 8/256GB GTX1050Max-Q.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).