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 (35.08 USD): BGHONEY2110
Coupon (35.08 USD): BG10OFFAFF
Coupon (37.98 USD): 13f142
(CouponsFromChina.com tip: this code has to be applied 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): BGBFAFF2019, BGCITYADS2019, AFfbG10, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi ZENPH Carbon Fiber Telescopic Trekking Pole.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).