Korea Customs Service · monthly export data
Korea Memory Export Price Proxy
Track Korea Customs Service chip export data.
Follow monthly DRAM and broader memory-IC export value, net weight, and implied USD per kilogram.
Monthly export data · prices in USD per kilogram
DRAM chips · export unit value
Latest monthly data loaded.
Monthly export data
Declared export value ÷ net export weight · a customs unit value, not a quoted chip price
Observed value MA 3M MA 6M MA 12M 6-month ±2σ band
Moving averages use published monthly observations directly · MA periods are calendar months · descriptive overlays, not forecasts
Read the signal carefully
Price direction, shipment value, and product mix in one customs view
The three measures answer different questions. Read them together before interpreting a move.
Unit-value proxy
Export USD divided by net kg. It can reflect price, density, package, destination, and contract-mix changes.
Declared export value
The monthly FOB dollar value of exports under the selected code—not company revenue or completed retail sales.
Net export weight
The physical denominator. It helps reveal whether a value move arrived with more shipment mass or mainly a richer mix.
Product coverage
DRAM chips and broad memory stay separate
The chart never adds finished DRAM-module weight. Switch between the DRAM-chip view and the broader memory-IC view without blending their denominators.
| Series | What it covers | How to read it |
|---|---|---|
| DRAM chipsMonthly export data | DRAM integrated circuits, without a separate HBM breakout | Narrower, still mix-sensitive proxy |
| Memory integrated circuitsMonthly export data | Electronic integrated circuits classified as memories | Broader aggregate comparison |
Formula
Export unit value
The interface rounds only for display.
Source
Korea Customs Service data
The chart uses Korea Customs Service monthly export statistics and keeps the DRAM-chip and broader memory views separate.
Open KCS Trade Statistics →Hard limitation
A proxy, not an ASP
Customs data does not identify memory generation, density, package, contract terms, destination mix, or company. A rising line can reflect a richer shipment mix as well as higher like-for-like prices.
Useful next comparison
Follow the customs signal into retail memory prices.
Korean exports sit upstream of finished consumer products. Compare the macro unit-value proxy with separately sourced US retail baskets without claiming that one series mechanically causes the other.
Compare the DDR5 retail chart → Compare the SSD retail chart →
Questions, answered
Korea memory export proxy FAQ
How to read the proxy, where the data comes from, and what each product category covers.
Reading the proxy
What is the Korea Memory Export Price Proxy?
It is a monthly customs unit-value chart calculated from Korea Customs Service export value and net export weight. It offers a DRAM-chip view and a broader memory-integrated-circuits comparison. Neither is a quoted chip price.
What does USD per kilogram mean on this chart?
For each month, declared FOB export value in US dollars is divided by net export weight in kilograms. A result of $60,000/kg means the month’s aggregate declared value was $60,000 for each net kilogram exported; it does not mean every chip sold at that rate.
Is this real-time Korea semiconductor export data?
No. The item-level KCS series is monthly. Corrections and cancellations are normally reflected around the 15th when the prior month is updated. The page always shows the latest source month and snapshot time rather than presenting it as an intraday signal.
What are MoM, YoY, the timeline, and the advanced chart indicators?
Month over month compares a value with the immediately preceding calendar month. Year over year compares it with the same month one year earlier. The chart defaults to a one-year visible timeline, with 2Y, 3Y, 5Y, and All options in both views. Advanced view adds 3-, 6-, and 12-month simple moving averages plus a 6-month band at two population standard deviations; calculations retain the earlier observations needed for each indicator and remain descriptive rather than predictive.
Why show export value and export weight as well as unit value?
Unit value can rise because the product mix becomes more valuable even if physical shipments fall. Viewing declared export dollars and net kilograms separately helps distinguish value growth, volume growth, and mix effects.
Can I download the Korea memory export data?
Yes. Export CSV downloads the selected HS series with month, declared export USD, net export kg, implied USD/kg, and calculated MoM/YoY fields. It contains published aggregate statistics, not declarations or company-level records.
Product coverage
What does this chart cover?
The default view follows DRAM chip exports. You can also switch to a broader view of memory integrated circuits.
What does the broader memory view include?
It covers memory integrated circuits as an aggregate category. That can include DRAM, flash memory, and other memory types, so read it as a broad mix rather than a single product price.
Why are DRAM modules excluded?
A module includes its circuit board and assembled components, so its export weight is not physically comparable with bare DRAM chips.
Why not add DRAM-module exports to this USD/kg number?
Modules include circuit boards and assembled components, so their physical weight is not comparable with integrated-circuit weight. This chart therefore focuses on chip exports and does not add module kilograms.
Does the DRAM series isolate HBM exports?
No. The DRAM category does not provide a clean HBM-only breakout. Changes in advanced-memory mix can affect the aggregate DRAM unit value, which is one reason this remains a proxy rather than a product quote.
Does the broader memory series isolate DRAM or NAND flash?
No. The broader memory view covers several memory-IC classifications. Use the DRAM-chip view for a narrower signal and read the broader line only as an aggregate memory mix.
Data & calculation
Where does the Korea export data come from?
The chart uses monthly Korea Customs Service trade statistics. Your browser does not contact the source while you view the page.
How is the Korea memory export price proxy calculated?
For a selected product category and month: declared FOB export USD divided by net export kilograms. MoM and YoY changes are calculated from those published monthly values without interpolation.
What does FOB export value mean?
FOB is the declared value at export before overseas freight and insurance. KCS states that Korean exports are compiled on an FOB basis, while imports use a CIF basis. This page uses export values only.
What does net export weight mean?
Net weight is the product weight reported in kilograms, excluding shipping packaging where customs reporting applies that distinction. It is an aggregate denominator and does not reveal chip count, capacity, generation, or package type.
Can historical KCS export values change?
Yes. Corrections or cancellations to customs declarations can revise prior-month aggregates. The page republishes the latest complete source view.
How are incomplete KCS updates handled?
The page retains the latest complete official month until a newer complete update is published.
Interpretation
Is the customs unit value the actual DRAM market price?
No. It is aggregate declared export value divided by aggregate net weight. Product generation, density, packaging, destination, contract mix, and shipment timing can all change the result without a uniform change in per-chip prices.
Can I treat this as a DRAM spot or contract price?
No. Spot and contract benchmarks define products and commercial terms differently. The KCS proxy is useful as independent shipment evidence, but it must remain separately labelled from specialist DRAM spot, contract, wholesale, and retail series.
Do Korean memory exports lead the semiconductor cycle?
They can provide timely evidence because Korea is a major memory exporter, but a stable lead is not guaranteed. This page does not claim a fixed one- or two-month lead over equities, earnings, retail prices, or the wider semiconductor cycle without a separate statistical test.
Does rising export value mean Samsung or SK hynix revenue rose by the same amount?
No. Customs aggregates are not company financial statements. They can include multiple exporters, product categories, shipment timing, destinations, intercompany flows, and recognition periods that differ from reported revenue.
How can product mix change the USD/kg proxy?
A greater share of newer, denser, or more highly packaged memory can raise declared dollars per kilogram even if like-for-like prices are unchanged. Conversely, heavier lower-value shipments can reduce the proxy. Always inspect value and weight alongside it.
Is the Korea memory export proxy investment advice?
No. It is a descriptive customs-data reference. It does not recommend securities, predict earnings, time a purchase, or prove why a market moved. Use primary company disclosures and specialist pricing sources for decisions that require those claims.