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 loss does the clause cover?
Delay, quality, IP leakage, take-or-pay or a general breach each need a different formula.
ScopeIs the number a genuine pre-estimate?
Record why the rate was set. A round 30% of contract value with no rationale is fragile.
RationaleDo you also claim actual loss?
Stacking unlimited actual damages on top of a high agreed damages invites adjustment or double recovery arguments.
StackingWhere will it be heard?
Chinese courts are more interventionist on quantum than some foreign arbitral seats.
ForumWorking rule: The Civil Code lets parties stipulate liquidated damages or a method for calculating loss.
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.
Is a 30% liquidated-damages clause automatically void?
No. There is no single illegal percentage. The question is whether the sum is excessively higher or lower than the loss on these facts, and whether the forum will adjust it.
Can we say the amount is non-adjustable?
A Chinese court is unlikely to treat that as a complete bar if the Civil Code adjustment mechanism applies. Draft for a defensible pre-estimate instead.
Primary authorities
Reviewed sources support orientation, not a fact-specific assessment.