1. Two valid routes
For a shipment from China to any of the ten ASEAN members, two preferential routes exist:
Form E under the China-ASEAN Free Trade Agreement.
The RCEP certificate of origin.
Both are valid. Both may offer a preferential rate. The question is which gives the lower duty for the specific product, in the current year.
2. The default answer
For most ASEAN destinations and most industrial products, Form E is at least as good.
The China-ASEAN agreement entered into force in 2010, with the upgraded protocol taking effect in 2019. Two decades of tariff reduction have brought many lines to zero.
RCEP entered into force in 2022 and is still staging on many of the same lines.
So the general pattern: Form E gives an equal or better rate for most ASEAN industrial goods.
3. Where RCEP wins
Products excluded or restricted under the ASEAN agreement
Some lines are carved out of the China-ASEAN schedule or held at a residual rate. RCEP may treat them differently.
Products that only qualify under RCEP cumulation
This is the commercially important case. A product that fails Form E’s origin rules may pass under RCEP because its non-Chinese content comes from RCEP members, whose materials count as originating.
Same rate, but available only through RCEP.
High-value products where a small rate difference matters
On a large shipment, a one or two percentage point difference is significant.
4. The origin rule comparison
Form E and RCEP both use wholly obtained, change in tariff classification and regional value content. The structures are similar.
Three differences matter.
Cumulation scope
Form E cumulates across China and the ten ASEAN members.
RCEP cumulates across fifteen economies, including Japan, Korea, Australia and New Zealand.
For a product assembled in China from Japanese components, RCEP may qualify where Form E does not.
Regional value content thresholds
Generally 40 percent under both, but the product-specific rules differ in detail.
Criterion codes
Not interchangeable. A code that exists under one agreement may not exist under the other, or may mean something different.
5. The comparison method
Identify the destination and the HS code.
Query the Form E rate and the RCEP rate for the current year.
Check whether the product can satisfy the origin rules of the agreement with the better rate.
If not, move to the next best rate.
Confirm the rate will apply at the expected import date, not the shipment date.
Step three is the one that gets skipped. A better rate attached to a rule the product cannot meet is not an available rate.
6. Operational considerations
Filing complexity
Form E filing is familiar to exporters who ship regularly to ASEAN. RCEP filing is newer, and the origin analysis is more involved.
Certificate coverage
Form E covers only ASEAN destinations. The RCEP certificate covers all fifteen members.
An exporter shipping to Vietnam, Thailand and Korea uses one RCEP certificate type for all three, rather than Form E for two and a bilateral certificate for the third.
Advance rulings and pre-assessments
Pre-assessments are not always transferable between agreements. A product assessed under Form E rules is not automatically assessed under RCEP rules.
7. What importers should ask
If your supplier files Form E by default, ask whether RCEP was compared.
The answer is sometimes that it was, and Form E is better. The answer is sometimes that Form E is what the company uses.
The second answer is not necessarily wrong, but it is not a comparison, and the difference can be several percentage points.
8. A worked scenario
Product assembled in China, shipped to Vietnam.
Chinese materials, USD 30,000 of the USD 100,000 FOB value.
Japanese components with supplier declarations, CIF USD 30,000.
Components from outside RCEP, CIF USD 40,000.
Under Form E, Japanese components are non-originating. Non-originating value is USD 70,000. Regional value content is 30 percent. Fails the 40 percent threshold.
Under RCEP, Japanese components count as originating with the declarations. Non-originating value is USD 40,000. Regional value content is 60 percent. Passes.
If the RCEP rate for this line is zero and the Form E rate is also zero, the rate is the same but only RCEP is available. That is the difference between a preference claimed and a preference foregone.
9. Closing view
The Form E versus RCEP question has a default answer and a meaningful set of exceptions.
The exporters who capture the exceptions are the ones who run the comparison rather than applying the default.
*This article is based on the China-ASEAN Free Trade Agreement and the Regional Comprehensive Economic Partnership as published by China’s Ministry of Commerce Free Trade Area Service Network. Rate queries should use current-year data.*