Bao Zheng (Lord Bao), a Chinese government officer during the reign of Emperor Renzong of Song, writes a memorial to the throne. He warns about governmental corruption – and a foreseeable bankruptcy of the Chinese iron industry – if increasingly poorer families continued to be listed on the register for iron-smelting households (while rich households avoid being listed for fear of financial calamity). Apparently the government heeds the warning, and produces more iron products by the year 1078 than China ever had before.