A lawyer’s letter can start a paper trail — it does not freeze accounts and it may not stop the limitation clock if it is sloppy.
Counsel often send a 律师函 before filing. Uses: put the debtor on notice, invite a settlement, and sometimes interrupt limitation if the demand meets Civil Code form and is delivered. It will not bind a bank. Over-threatening language can become a defamation or commercial-disparagement fact. Serve it to the licence address and keep courier proof. The long debt-collection guides stay the playbooks — this page is the letter itself. Do not copy a US demand with Rule 11 threats.
4 questions before you choose the route.
This page identifies the right question and evidence. It does not determine the legal outcome on a reader’s facts.
What do you want the letter to do?
Clock, settlement, record.
PurposeWill this text actually interrupt limitation?
Form and delivery.
ClockWhere will you send it?
Licence address vs WeChat.
SendAny preservation that should go first?
Letter can tip a flight.
FreezeWorking rule: Map the regulated role before marketing or launch in China.
The signal ledger.
These facts move the question beyond a label and into a product, money-flow and control analysis.
Bring a compact evidence docket—not a pitch deck.
Give a compliance team or counsel the operating facts that reveal the perimeter.
Questions people ask before they build.
Short answers for orientation. The right result can change with the service model and current rules.
Must a PRC lawyer send it?
A foreign letter can notify; a PRC 律师函 is what counterparties and clocks take seriously.
Where is the collection playbook?
Collect debt chinese company foreign creditor and /debt-collection-china-foreign-creditors.
Primary authorities
Reviewed sources support orientation, not a fact-specific assessment.