How many tons of laterite are there?

There are 65-75 tons of red soil in the first four and the last eight.

Red soil: The soil is acidic and reddish brown in color. It is mainly distributed in hilly areas south of the Yangtze River in China, including most of Jiangxi and Hunan provinces, southeastern Yunnan and Hubei, northern Guangdong and Fujian, parts of Guizhou, Sichuan, Zhejiang, Anhui and Jiangsu, and southern Tibet.