The China National Publication Import and Export Corporation (CNPIEC) is a state-owned company responsible for “letting China know the world” one publication at a time.
When a library in the CNPIEC network purchase your book, they can then loan it for life. To compensate for this, the cover price is four times the standard price.
In practice, this means that you will receive 160% of the cover price for each copy bought e.g. if the cover price is $10.99, you will earn $17.58.