The six-engine An-225, the world's largest cargo aircraft, is owned by Ukraine Antonov Co. It departed Tianjin for Poland on Monday with 81.3 metric tons of medical supplies to help fight the COVID-19 pandemic. (Photo by Ma Cheng/For chinadaily.com.cn)

The massive cargo plane is loaded on Tuesday before heading to Poland. (Photo provided to chinadaily.com.cn)

Epidemic prevention materials are loaded onto an AN-255 Mriya, the world's largest cargo aircraft, at Tianjin Binhai International Airport on April 13, 2020. (Photo by Tong Yu/For chinadaily.com.cn)

Epidemic prevention materials are loaded onto an AN-255 Mriya, the world's largest cargo aircraft, at Tianjin Binhai International Airport on April 13, 2020. (Photo by Tong Yu/For chinadaily.com.cn)

People take pictures of the An-225 at Tianjin Binhai International Airport. (Photo by Ma Cheng/For chinadaily.com.cn)