I already have a China PRP card. What is the process for renewing it 10 years from now?

Dear, could you please tell me for which purpose you hold the PRP card? For spouse reunion, family reunion, or other reasons? Only when you tell me that, I can figure out which passport you need to provide.
I think the renewals application is almost the same as the original application.

Hi Nicolas
[spouse reunion]
Thanks!

If so, you should first prepare those documents: your passport, a health certificate, a certificate of no criminal conviction, four full-color photos taken recently without a headwear, the household registration certificate or permanent residence permit of your spouse, your marriage certificate, and a notarized property ownership certificate, as well as other materials the consular officers consider necessary.
Next, go to the exit and entry administration of the local PSB to renew your permanent residence permit.