Following Chinese laws and international conventions, the copyright is automatically gained upon the work is done. However, to preserve evidence of your copyright, it is better to make copyright registration upon the completion of the work.

If you find your copyright is infringed, or someone conducts piracy activities, you have several options to protect your copyright.
1. Civil case: You may file a civil case with the court for injunction and demand for compensation from the infringer.
2. Raid action: If it is a piracy is clear, you may file a complaint with the administration authority and the authority will carry out raid action on the pirate.
3. Criminal action: If the amount of pirate work is very large and meets the threshold of criminal case, the police authority can step in and a criminal penalty can be imposed on the pirate.