How big is China Resources Shangsi Mine?

the mining area of China resources Shangsi mine is .33 square kilometers. According to the relevant information, the mineral of the mining right is limestone for building stone, the mining area is .33 square kilometers, the resource is 64.88 million tons, the design production scale is 5 million tons per year, and the transfer period is 13 years. In the end, the mining right was won by China Resources Cement (Shangsi) Co., Ltd. for 71.29 million yuan.