From June 1st, the shipping method EMS and Eyoubao will have volumetric weight involved for parcels which is long than 40cm(including 40cm). It charges on the bigger one between actual weight and volumetric weight. For example, the actual weight of your package is 2kg, and the dimesion is 40*35*25cm. Then EMS will charge on the volumetric weight 40*35*25/6000 = 5.83kg.
Here you can calculate in our website calculator: https://www.42agent.com/calculator.php . Any questions please feel free to contact email@example.com.
Thanks so much for your kind understanding!