Look at the type of enterprise. Generally, companies that can cover an area of 150 mu are large enterprises. Of course, if this 150 mu of land includes large factories, it is not too big.
Mu is a unit of land area in China, equal to 60 square meters, or about 666.667 square meters. Fifteen acres equals one hectare. The 60-square abbot was chosen because of the ancient counting method in China. Counting is mostly carried out in units of ten, while in ancient times it was carried out in units of sixty.