HS 854231 to industry sectors: what we can, and cannot, bridge today

This is a lighter page than the rest of the workbench. Consultants in transaction services and equity research talk HS -> industry -> listed company; the full chain needs three external concordance tables (HS-NAICS, HS-SITC, HS-ISIC) plus an industry-to-company mapping (GICS with SEC EDGAR or equivalent). None of those tables is ingested here yet. What we can do on today’s Parquet footprint is surface the WCO Harmonized System section and chapter structure, show the sibling HS6 codes in the same HS4 heading as an honest lowest-level product family, and flag the concordance sources that need to land next.

HS section navigator

The Harmonized System partitions all merchandise into 21 sections (I-XXI), each containing a set of 2-digit chapters (01-97), which subdivide into 4-digit headings and then 6-digit subheadings (HS6). Section-level aggregates below are the sum of world exports across every HS6 we observe in BACI HS92 for 2024, displayed in current USD after the BACI ×1000 adjustment.

Product concordance table for the chosen HS6

For HS 854231, this table shows every concordance field we can fill today. NAICS (North American Industry Classification System, US/Canada/Mexico), ISIC Rev 4 (UN Statistical Division), SITC Rev 4 (UN product classification), and GICS (MSCI/S&P industry classification) columns are placeholders; populating them requires ingesting the four concordance files listed in the sources note. Each of those files maps many-to-many (a single HS6 can roll up to several NAICS, GICS, or ISIC codes when end-use crosses categories), so the ingest step must preserve the crosswalk multiplicity, not force a single pick.

Sibling HS6 codes in the same HS4 heading

Without a NAICS/GICS bridge, the closest honest “roll-up” is the HS4 heading. Heading 8542 contains the HS6 codes below, ranked by world exports in 2024. This is a product family, not an industry class, but for buyer-side sourcing work it is a defensible starting point: the WCO intentionally groups substitutable goods at the heading level.

Chapters inside Section XVI

One level up from Figure 3: the 2-digit chapters inside the same HS section as the chosen HS6, with HS6 counts and aggregate world exports. This is useful when the user types an arbitrary HS6 and wants to see what else lives in its section neighbourhood before drilling into alternative chapters.

End-use split: capital / intermediate / consumption, by HS section

The UN Broad Economic Categories (BEC) Rev 5 classification maps every HS6 to an end-use aggregate: capital goods, intermediate goods, consumption goods, or primary goods (see UN Statistical Papers Series M No. 53, Rev 5, 2024; Lemmers & Wong 2019 review). A stock roll-up of HS sections to BEC classes is a practical proxy before the full BEC ingest: HS sections V-VII (minerals, chemicals, plastics) are dominantly intermediate; HS XVI (machinery & electricals) splits capital-goods-heavy at the chapter level; HS XI-XII (textiles & footwear) are dominantly final consumption. The figure below shows each section’s 2024 world trade value split by a heuristic capital/intermediate/consumption weight derived from BEC Rev 5 headline class proportions; the precise decomposition requires the HS-BEC correspondence file listed in the TODO below.

Method note on BEC decomposition. The canonical many-to-many HS-to-BEC correspondence (UN Statistics Division, Correspondence between HS 2022 and BEC Rev 5, 2024) assigns every HS6 code to one of 19 BEC classes at the main level, which aggregate to the four headline classes (Capital, Intermediate, Final consumption, Not elsewhere classified). A trade flow decomposition uses the HS6-BEC weight matrix W (sparse, 1 per HS6 in Rev 5’s hard assignment; fractional in some historical revisions): V_BEC = W’ × V_HS6. The classification has been used in Lemmers & Wong (2019) and the OECD Trade in Value Added (TiVA) pipeline to trace intermediate-goods networks.

BEC production-stage shares of world trade, 2000–2023

The UN Broad Economic Categories classification partitions every HS6 line into a production-stage class: primary goods (HS 01–15 agriculture-and-minerals heavy), semi-finished goods (intermediate materials, HS 25–83 most), parts and components (intermediate industrial inputs, e.g. HS 8409 engine parts, HS 8708 motor-vehicle parts, HS 8542 integrated circuits), capital goods (investment equipment: most of HS 84 machinery, HS 8802 aircraft), and consumption goods (final-demand: HS 61–64 apparel, HS 94 furniture, HS 8703 passenger cars, HS 8517 phones). The composition over time is a compact signature of the global value chain re-architecture documented in Johnson-Noguera (2012, Journal of International Economics) and Baldwin (2016, The Great Convergence): a trade-in-tasks world sends more intermediates and components across borders than a trade-in-goods world. CEPII’s global_trade_by_stage table provides the stage roll-up to world aggregates at annual frequency (values in millions of USD).

Which production stage gained, which declined: 2000 vs 2023

Figure 6 plots the five stage shares as parallel time series. The net change over the window is easier to read as a single bar per stage. The direction and magnitude of each stage’s drift speak directly to what Baldwin (2016) called the “great convergence” and to Antàras’s (2020, ECTA) de-globalisation debate: has production sharing continued to deepen, or has final-consumption trade reclaimed share as global value chains shorten?

How granular is each HS section? Heading counts at the 4-digit level

Figure 1 reports HS6 subheading counts per section, which is the finest granularity in BACI. The HS4 heading is the layer between chapter (HS2) and subheading (HS6), and it is the level at which the WCO draws its substantive product-family distinctions. The number of HS4 headings per section is a structural measure of how finely the WCO chose to partition each part of the goods universe; a section with many headings has more product families that an industrial-policy or equity-research user must keep separate, while a section with few headings is internally homogeneous in the WCO’s view. The bars below count distinct HS4 headings per section in the HS92 catalogue.

Data TODO: concordance ingest roadmap

The following files would promote this page from a navigation shell into a full HS -> industry -> company bridge. All four are public and mechanical to ingest; the hold-up is maintenance discipline, not access:

• HS-NAICS crosswalk: US Census Bureau Foreign Trade Division, “Schedule B and Harmonized Tariff Schedule Concordance with NAICS,” annual release at census.gov/foreign-trade/reference/codes. Many-to-many; requires duplicating HS6 rows across target NAICS codes.
• HS-ISIC Rev 4 correspondence: UN Statistics Division Classifications Registry, Correspondence between HS 2022 and ISIC Rev.4, downloadable as CSV at unstats.un.org/unsd/classifications. Many-to-many; canonical source for industry-of-origin attribution in national accounts.
• HS-SITC Rev 4 correspondence: UN Statistics Division, also mirrored by CEPII inside the BACI distribution. Useful for long historical series that pre-date HS.
• GICS methodology: MSCI and S&P, “Global Industry Classification Standard (GICS) Methodology,” 2023 revision. Public methodology, proprietary company mapping. An HS-GICS bridge must be assembled manually by routing HS6 -> NAICS -> GICS industry (GICS level 3), because no direct HS-GICS file exists.
• Public-company trade analytics: SEC EDGAR filings (10-K, 10-Q) plus the SEC’s company_tickers.json and XBRL segment data. Once GICS is in, company-level trade exposure becomes a join on ticker -> GICS -> HS6 -> BACI bilateral flows. Until EDGAR is ingested, this page cannot list listed players per industry.

How consultancies use this

• Transaction services (buy-side). Given a target company’s NAICS code in the CIM, identify every HS6 that rolls up to it, then pull concentration (Figure 3 of the /concentration page) and gravity (Figure 4 of/gravity) on those HS6s to stress-test the revenue model.
• Equity research (sell-side). Given a GICS industry coverage (e.g. Semiconductors & Semiconductor Equipment, GICS 453010), pull the HS6 basket (851770, 854150, 854231, 854232, 854239, 854290, 854320, ...) and produce industry-level trade flow charts as supplemental evidence in initiation reports.
• Strategy / market sizing. Use Section and Chapter aggregates (Figures 1 and 4) to size adjacent product markets when a client wants to extend into a related HS heading.

References

• World Customs Organization (2022). Harmonized Commodity Description and Coding System: Nomenclature 2022 Edition. Brussels: WCO.
• United Nations Statistics Division (2023). International Standard Industrial Classification of All Economic Activities (ISIC), Revision 4. Statistical Papers Series M, No. 4, Rev. 4. New York: UN.
• United Nations Statistics Division (2023). Standard International Trade Classification, Revision 4. Statistical Papers Series M, No. 34, Rev. 4.
• United Nations Statistics Division (2024). Classification by Broad Economic Categories, Revision 5. Statistical Papers Series M, No. 53, Rev. 5. New York: UN. Canonical HS–BEC correspondence distributed via WITS.
• US Census Bureau Foreign Trade Division (2024). Schedule B and Harmonized Tariff Schedule Concordance with NAICS 2022. Washington, DC.
• Executive Office of the President & Office of Management and Budget (2022). North American Industry Classification System, 2022.
• MSCI & S&P Global (2023). Global Industry Classification Standard (GICS) Methodology. Updated March 2023.
• Gaulier, G., & Zignago, S. (2010). “BACI: International Trade Database at the Product-Level. The 1994-2007 Version.” CEPII Working Paper 2010-23 (methodology; BACI distributes HS-SITC concordance alongside the trade flows).