Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (92.50 USD): BG1111KA
(CouponsFromChina.com tip: apply it 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): bGhOnEy10, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13, 13f142, BG10OFFAFF, BGwhielabel, BGYY001, BG10OFFAFF1, BANGGOODSD
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for Xiaomi Liven DHG-558 Eletric Skillet 5.5L 1800W is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).