Aliexpress
Click here… to search for Xiaomi HL 600W/1L Folding Electric Kettle on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (36.63 USD): BG10OFFAFF1
(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)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): d97faa, 502C6B, PICODICOM, 2282CODE, aff7off, BGHLkettle, bgssaff9, BGHLEK8, BGHLFEK9, BGaDmITAd, BGHLEK, BGBFAFF2019, BGCITYADS2019, BGHLKCL, BG9NY, BGHOMEAPP, BGHLKL, BGTT10, bGhOnEy10, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13, 13f142, BG10OFFAFF, BGwhielabel, BGYY001
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi HL 600W/1L Folding Electric Kettle.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).