Aliexpress
Click here… to search for Xiaomi SOLISTA L18-F1 1.75L 900W Food Blender on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (212.57 USD): 7bcdf9
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Old coupons (from the oldest to the newest): 502C6B, 427168, Wholesale20, BGSOLISTA, BGBFAFF2019, BGCITYADS2019, BGHOMEAPP, BGMPB2020, bGhOnEy10, BGAFF7OFF, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi SOLISTA L18-F1 1.75L 900W Food Blender is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).