Recyclable Material Merchant Wholesalers (NAICS 42393)

A Histometrics rollup primer for public-market and private investors

Short page — single-child level. In the North American Industry Classification System (NAICS), the 2022 industry 42393 contains exactly one national industry, 423930 (same name). At this level the two are effectively identical: every establishment, dollar of sales, and worker counted under 42393 is also counted under 423930. This page gives the level's own ground-truth federal statistics and the investing picture in brief. For the full detail — scope, economics, company-by-company universe, regulation, and risks — read the 423930 primer.

1. Overview

This is the scrap business: dealers, yards, and brokers that buy used metal, paper, plastics, glass, and electronics, then process and resell them to mills and factories as raw material. It is the front end of the "circular economy" — where a junked car, a demolished building, or a bale of cardboard becomes a priced commodity that flows back into manufacturing.

For an investor, three points carry over from the child industry. It is large but nearly invisible (~$107.7 billion in annual sales) [1]; it is a commodity-cycle business whose earnings swing with steel-scrap, copper, and aluminum prices rather than any company's marketing; and it is structurally helped by decarbonization, because recycled metal takes far less energy than ore-based production and U.S. steelmaking has shifted heavily toward furnaces that eat scrap — nearly 70% of U.S. steel is now made in electric arc furnaces (EAFs) [2][3].

2. What's inside — and why the level equals its one child

NAICS is a nested hierarchy: broad sectors (2-digit) narrow to industry groups (4-digit), NAICS industries (5-digit), and national industries (6-digit). The 5-digit code 42393 sits one step above the 6-digit leaf and has a single child:

Because there is only one child, 42393 has no aggregation to do — its totals are the child's totals. The U.S. Census Bureau kept the code as a single-member family rather than splitting scrap wholesaling into finer categories. So the "what's inside" question is answered entirely in the 423930 primer: merchant dealers and brokers that take title to the material and resell it for their own account, plus auto wreckers that dismantle vehicles to wholesale the scrap [4][5]. Carved out are materials recovery facilities (NAICS 562920), used-parts wreckers (NAICS 423140), waste collection and hauling (NAICS 5621), the steel, aluminum, and paper mills that consume scrap (NAICS 331/322) — even when they own yards — and agents and brokers that never take title (NAICS 425) [4][5].

3. How big it is (this level's rollup figures)

Federal statistics for 42393 (ground-truth figures; U.S. Census Bureau). Because this level equals its one child, these are also the 423930 numbers:

Concentration is low. The four largest firms account for 22.1% of sales, the top eight 28.8%, the top twenty 37.4%, and the top fifty 46.8% [1]. The Herfindahl-Hirschman Index (HHI) — a standard 0–10,000 concentration gauge where regulators treat anything below 1,500 as "unconcentrated" — is just 183.5 [1]. With 5,985 firms running 7,744 establishments [1][6], most operators hold one or two locations while a handful run dozens. In plain terms: it takes fifty firms to reach half the market, and no single company dominates.

Two caveats on reading these numbers. First, Census "receipts" are gross merchandise turnover, not value added or processor gross profit — when commodity prices rise, industry revenue can jump sharply without any comparable increase in tonnage or earnings. Second, the figures capture the independent merchant slice of scrap and understate the full "scrap economy" in two ways: much of the largest processing volume runs through captive operations owned by steelmakers (Nucor's David J. Joseph, Steel Dynamics' OmniSource, Commercial Metals' scrap yards), usually folded into the parent's manufacturing accounts rather than counted here; and materials recovery facilities and used-parts wreckers are carved out by definition. The Recycled Materials Association (ReMA) puts the entire U.S. recycled-materials industry at about $184 billion of total annual economic activity supporting roughly 603,000 jobs — a far bigger footprint than the 42393 slice, though that figure includes downstream, supplier, and induced activity well beyond merchant wholesalers [2]. Treat the Census number as "the independent wholesale core," not the whole thing; the many one-yard, family-owned operators also make the true count of tiny businesses easy to undercount.

4. Investable universe (where value concentrates)

With one child, value concentrates exactly where it does in 423930: there is one large listed pure-play plus several steelmakers whose recycling arms give indirect exposure, while most of the biggest processors are private or captive.

• Pure-play: Sims Limited (Australian Securities Exchange: SGM; U.S. over-the-counter American Depositary Receipt: SMSMY) — the world's largest listed metal-and-electronics recycler, ~230+ North American sites and half of SA Recycling; FY25 revenue ~A$7.5 billion (~US$4.9 billion) [8][9].
• Indirect via EAF steelmakers: Nucor (New York Stock Exchange: NUE) owns David J. Joseph — 72 facilities in 18 states, ~6.8 million tons of annual ferrous-processing capability [10]; Steel Dynamics (Nasdaq: STLD) owns OmniSource, 70+ sites, a $4.35 billion metals-recycling segment [11]; Commercial Metals (NYSE: CMC) runs 40+ yards feeding its mini-mills [12]; Cleveland-Cliffs (NYSE: CLF) owns Ferrous Processing & Trading, 21 locations, ~3 million net tons processed in 2025 [13]. In every case scrap exposure sits inside a steel business.
• Adjacent: Enviri (NYSE: NVRI, formerly Harsco) sells metal-recovery services at mills rather than dealing scrap; diversified waste names and battery/critical-metals recyclers touch the theme without being merchant wholesalers [14].
• Private / captive (not directly investable): Radius Recycling (formerly Schnitzer Steel; acquired by Japan's Toyota Tsusho for ~$907 million and delisted July 2025) [15][16], SA Recycling (Sims / Adams Steel joint venture, 120+ facilities) [17], European Metal Recycling (EMR), and PE-backed roll-ups [18].

The level's own shape is worth stating plainly: the tonnage and the tradeable equity sit in different places. The largest processing volume is captive — Nucor sells only about 7% of what David J. Joseph brokers and processes to outside customers, and 65% of Steel Dynamics' 6.16 million ferrous tons went to its own mills in 2025 [10][11] — so buying a listed "recycler" other than Sims mostly means buying steel. See the 423930 primer, Section 4 for the full table and scale figures.

5. How the money works

Unchanged from the child: owners make money on the spread and the flow, not on brand or same-store growth. A yard pays a buy price for incoming scrap and sells to a mill at market; the gap is the "metal margin." Because merchant wholesalers book the full commodity value as revenue, sales look enormous but margin per ton is thin — which is why ~$107.7B of sales supports only ~$6.6B of payroll [1][6]. Steel Dynamics' metals-recycling segment gives the cleanest public read on the arithmetic: $4.35 billion of net sales produced $97.2 million of operating income in 2025, about a 2.2% operating margin [11].

It is a low-margin, high-throughput business driven by tons processed, ferrous-versus-nonferrous mix, capacity utilization, inventory turns, and the underlying commodity curve. Nonferrous carries the profit: prepared steel scrap ran roughly $100–165 per ton in 2025 while copper traded around $2.40–3.70 per pound and aluminum $0.55–0.82 per pound [19] — and at Steel Dynamics a flat ferrous spread alongside a 24% wider nonferrous spread was enough to lift segment operating income 27% [11]. Owning the metal also means dealers carry price risk between buying and selling; average-cost accounting can make recognized inventory cost fall more slowly than sales prices, amplifying losses in a fast decline [20]. Radius Recycling shows the down-leg in full: revenue fell from $3.49 billion in fiscal 2022 to $2.74 billion in 2024, gross margin from 14.0% to 6.5%, and adjusted EBITDA from $312.7 million to $29.3 million, with a $266.2 million net loss in fiscal 2024 [20]. Full mechanics are in the 423930 primer, Section 5.

6. Demand drivers

The demand story is the child's story. EAF steelmaking dominates it: furnaces that melt scrap now make nearly 70% of U.S. steel and every new mini-mill is a permanent new scrap customer [2][3] — though more EAF capacity also means more competition for prime, low-residual scrap, and mills can substitute direct-reduced iron, hot-briquetted iron, or pig iron when quality or relative prices favor them, so the tailwind is to volume more reliably than to merchant margin [10]. Beyond that: construction, autos, and machinery, which both generate and consume the metal (automotive scrap demand fell double digits year on year in 2025's soft patch) [19]; global commodity prices, with U.S. apparent consumption of iron and steel scrap at 57 million metric tons in 2025 and domestic scrap purchases valued at ~$19.7 billion [21]; decarbonization and "green steel," the reason a strategic buyer like Toyota Tsusho paid a premium for Radius [15]; and exports — roughly 70% of U.S.-processed recycled material is consumed domestically and 30% shipped abroad, with 2024 exports of 32 million metric tons worth $28 billion [22], which is what makes freight, currencies, and foreign mill utilization live variables here. The wastepaper side tracks recycled-containerboard capacity, and it was the weak leg in 2025: new capacity pushed old-corrugated-container prices to multi-year lows [23], and Waste Management reported average single-stream commodity prices down roughly 20% [24]. See 423930 primer, Section 6.

7. Regulation

No rate regulation or federal price-setting applies at this level — the economics here are commodity-and-logistics, not regulated utility. What matters is environmental compliance (stormwater, soil, air, and hazardous residues under the U.S. Environmental Protection Agency and state rules; EPA's metal-shredder enforcement alert covered 250+ U.S. facilities with Clean Air Act violations, and Radius alone spent $21 million on environmental projects in fiscal 2024) [25][20]; hazardous-waste classification under RCRA, where processed scrap metal being recycled can be excluded from the definition of solid waste but the treatment depends on material and method [26]; trade and export policy, the biggest swing factor — roughly 48 countries restrict ferrous-scrap exports [27], 2025 U.S. 25% steel and aluminum tariffs supported domestic mills and scrap demand [28], and the Aluminum Association is pushing for U.S. export limits on strategic scrap, which cuts directly against dealers who sell abroad [29]; worker safety (federal OSHA recorded 291 citations across 84 inspected NAICS 423930 establishments in October 2024–September 2025, $1.65 million in current penalties) [30]; fire and battery risk from lithium-ion cells hidden in mixed loads [31]; and metal-theft licensing at the yard level. Details and the live export-restriction fight are in the 423930 primer, Section 7.

8. Consolidation

The industry is fragmented and consolidating — an HHI of 183.5 and a four-firm share of 22.1% leave ample room for roll-ups [1]. Two forces drive it. Backward integration by steelmakers buying scrap assets to secure feedstock: Steel Dynamics bought OmniSource for ~$1 billion in 2007, Nucor bought David J. Joseph for ~$1.44 billion in 2008, and Toyota Tsusho bought Radius in 2025 [32][33][15]. The effect on the merchant middle is measurable — DJJ now sells only ~7% of its material externally and 65% of Steel Dynamics' ferrous shipments go to its own mills [10][11]. And private-equity roll-ups of family yards into regional platforms: financial buyers led about 55% of 2025 waste-and-recycling deal flow [18], and scrap M&A accelerated sharply after 2020 — roughly 18 deals in 2021–2025 against 11 across the whole 2005–2020 span, tracking the EAF build-out [34]. Both pull supply out of the independent merchant middle even as the overall recycling pie grows. Competition itself stays local: scrap is heavy and expensive to move, so yards compete inside a freight radius on buy price, speed, and processing capability.

9. Risks

The risk set is the child's: commodity cyclicality (the dominant risk — earnings ride volatile, globally set metal prices, and a down-leg compresses spreads and forces write-downs) [19][20]; demand concentration in correlated steel/construction/auto end-markets; trade shocks (export bans abroad or export restrictions at home) [27][29]; feedstock squeeze as mills integrate backward and take both suppliers and customers with them; thin, working-capital-heavy margins, where a ~2% segment margin means modest price moves swing profitability [11]; environmental liability from legacy contamination and shredder emissions, including Superfund exposure that survives changes of ownership [25][26]; paper/plastics weakness when recovered-fiber prices fall [23][24]; and fire and battery risk from lithium-ion cells in mixed loads [31]. See 423930 primer, Section 9.

10. How to invest & outlook

Because 42393 is its single child, the playbook is identical. Public-market exposure is either the one pure-play (Sims) — cyclical, foreign-listed, thinly followed in the U.S. [8][9] — or an EAF steelmaker (Nucor, Steel Dynamics, Commercial Metals, Cleveland-Cliffs) where scrap rides along inside a steel business you're really buying for steel spreads [10][11][12][13]; adjacent names like Enviri and the diversified waste and battery-recycling companies tap the theme without being scrap merchants [14]. The operating economics live in the private market: buy a single family yard, back or build a regional roll-up (the active PE playbook), or partner on feedstock with a mill. Diligence should center on normalized gross profit per ton — not headline revenue, which is inflated by pass-through commodity value — plus recoverable-metal yield, supplier retention, customer and grade concentration, freight radius, inventory-accounting exposure, environmental capital expenditure, and working-capital intensity; environmental work should cover historical operations and neighboring parcels, not just a current Phase I [20]. Note too that a captive recycler can show a thin standalone margin while creating real value through mill utilization and feedstock security, so segment margin alone misprices integration.

Outlook. The multi-year case rests on the continued shift to EAF steel and decarbonization, which should structurally lift demand for high-quality ferrous scrap and, over time, copper and battery metals [2][3]. Near-term earnings hinge on the steel/copper/aluminum price cycle (soft in 2025) [19] and on trade policy, where U.S. import tariffs help domestic scrap demand while proposed export restrictions would hurt dealers who sell abroad [28][29]. Expect continued consolidation. For most investors this is a cyclical commodity play with a secular decarbonization tailwind — owned through an EAF steelmaker or, for those with operating appetite, directly in the private scrap market. Full routes and outlook are in the 423930 primer, Section 10.

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Sources

Level statistics (Sections 3–8) are Histometrics ground-truth federal data for NAICS 42393; all other citations are carried from the child 423930 primer, where the full source list appears.

1. U.S. Census Bureau. 2022 Economic Census — Concentration by Largest Firms, NAICS 423930 (receipts, firm count, CR4/CR8/CR20/CR50, HHI). 2022. https://www.census.gov/programs-surveys/economic-census.html
2. Recycled Materials Association (ReMA). ReMA Releases Economic Impact Study on Earth Day ($184B total activity, 603,000 jobs, EAF share of U.S. steelmaking). 2026. https://www.recycledmaterials.org/press-release/rema-releases-economic-impact-study-on-earth-day-highlighting-recycling-as-a-184-billion-engine-of-u-s-manufacturing-and-environmental-progress/
3. U.S. Energy Information Administration. Changes in steel production reduce energy intensity (electric arc furnace share of U.S. steelmaking). https://www.eia.gov/todayinenergy/detail.php?id=27292
4. U.S. Census Bureau / NAICS Association. NAICS 423930 — Recyclable Material Merchant Wholesalers (definition and exclusions: 423140, 562920). 2022. https://www.naics.com/naics-code-description/?code=423930
5. U.S. Census Bureau. Economic Census Wholesale Trade FAQ (merchant vs. agent/broker distinction). 2022. https://www.census.gov/programs-surveys/economic-census/year/2022/about/faq/faq-wholesale.html
6. U.S. Census Bureau. County Business Patterns, NAICS 423930 (establishments, employment, annual payroll). 2023. https://www.census.gov/programs-surveys/cbp.html
7. U.S. Small Business Administration. Table of Small Business Size Standards (NAICS 423930 = 125 employees). 2023. https://www.sba.gov/document/support-table-size-standards
8. Wikipedia. Sims Metal Management. 2025. https://en.wikipedia.org/wiki/Sims_Metal_Management
9. Sims Limited. Sims Limited Announces Fiscal 2025 Full Year Results. 2025. https://www.simsltd.com/press-releases/sims-limited-announces-fiscal-2025-full-year-results/
10. Nucor Corporation. Form 10-K (DJJ operations: 72 facilities, 6.8M tons capacity, ~7% external sales). 2025. https://www.sec.gov/Archives/edgar/data/73309/000119312526071575/nue-20251231.htm
11. Steel Dynamics. Form 10-K (metals-recycling segment: 6.16M tons, 65% internal, $4.35B revenue, 2.2% operating margin, spread data). 2025. https://www.sec.gov/Archives/edgar/data/1022671/000110465926021395/stld-20251231x10k.htm
12. Commercial Metals Company. Form 10-K (recycling segment: scrap facilities, tonnage, EAF mills). 2018. https://www.sec.gov/Archives/edgar/data/22444/000002244418000035/cmc-8312018x10xk.htm
13. Cleveland-Cliffs. Form 10-K (Ferrous Processing & Trading: 21 locations, ~3M net tons). 2025. https://www.sec.gov/Archives/edgar/data/764065/000076406526000025/clf-20251231.htm
14. InvestSnips. List of Publicly Traded Scrap Metal / Recycling Companies (Sims, Enviri, GFL). 2025. https://investsnips.com/list-of-publicly-traded-scrap-metal-companies/
15. Toyota Tsusho Corporation. Toyota Tsusho Completes Stock Acquisition of Radius Recycling Inc. 2025. https://www.toyota-tsusho.com/english/press/detail/250711_006639.html
16. Waste Dive. Toyota subsidiary closes deal to acquire Radius Recycling for $907M. 2025. https://www.wastedive.com/news/toyota-tsusho-radius-recycling-acquisition-scrap-metal/742671/
17. Wikipedia / EverybodyWiki. SA Recycling LLC (Sims / Adams Steel joint venture; facility count). 2025. https://en.everybodywiki.com/SA_Recycling_LLC
18. Capstone Partners. Waste & Recycling M&A Update — August 2025. 2025. https://www.capstonepartners.com/insights/article-waste-and-recycling-ma-update/
19. Okon Recycling. Scrap Metal Prices 2025 (ferrous/nonferrous price ranges); FactMR U.S. Scrap Metal Recycling Market (auto demand). 2025. https://www.okonrecycling.com/industrial-scrap-metal-recycling/steel-and-aluminum/current-trends-scrap-metal-pricing/
20. Radius Recycling. Form 10-K (operating model, inventory accounting, fiscal 2022–2024 revenue/margin/EBITDA, environmental spending). 2024. https://www.sec.gov/Archives/edgar/data/912603/000095017024117007/rdus-20240831.htm
21. U.S. Geological Survey. Iron and Steel Scrap Mineral Commodity Summary (2025 apparent consumption: 57M metric tons, $19.7B domestic purchases). 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-iron-steel-scrap.pdf
22. Recycled Materials Association (ReMA). Trade Data (2024 exports: 32M metric tons / $28B; domestic vs. export split). 2025. https://www.recycledmaterials.org/trade/
23. Packaging Dive. Recovered paper and OCC market volatility and multi-year-low prices in 2025. 2025. https://www.packagingdive.com/news/occ-2025-price-supply-demand-box-markets-normal/737571/
24. Waste Management. Form 10-K (single-stream commodity prices down ~20% in 2025). 2025. https://www.sec.gov/Archives/edgar/data/823768/000110465926012049/wm-20251231x10k.htm
25. U.S. Environmental Protection Agency. Metal Shredder Enforcement Alert (250+ facilities, Clean Air Act violations). 2021. https://19january2025snapshot.epa.gov/system/files/documents/2021-07/metalshredder-enfalert.pdf
26. U.S. Environmental Protection Agency. Regulatory Exclusions and Alternative Standards for Recycling Materials (RCRA scrap-metal exclusions). https://www.epa.gov/hw/regulatory-exclusions-and-alternative-standards-recycling-materials-solid-wastes-and-hazardous
27. Okon Recycling. International Scrap Metal Trade: Trends, Regulations & Export Bans (EPA/CBP oversight; ~48 countries restricting ferrous exports). 2025. https://www.okonrecycling.com/industrial-scrap-metal-recycling/steel-and-aluminum/international-scrap-metal-trade-process/
28. American Recycler. Tariffs and the impact on metal recycling (2025 U.S. 25% steel/aluminum tariffs). 2025. https://americanrecycler.com/tariffs-and-the-impact-on-metal-recycling/
29. The Aluminum Association. Aluminum Association Calls for Export Restrictions on Strategic Scrap Metal. 2025. https://www.aluminum.org/news/aluminum-association-calls-export-restrictions-strategic-scrap-metal-support-us-manufacturing
30. U.S. Occupational Safety and Health Administration. NAICS 423930 Citation Data (291 citations, 84 establishments, $1.65M penalties, Oct 2024–Sept 2025). 2025. https://www.osha.gov/ords/imis/citedstandard.naics?p_naics=423930&p_state=FEFederal
31. Recycled Materials Association (ReMA). Fire Safety Resources (lithium-ion battery risk, combustible dust, spontaneous combustion). https://www.recycledmaterials.org/recycled-materials-association-fire-safety-resources/
32. Recycling Today. Analysis: Nucor makes another vertical investment (DJJ / OmniSource acquisitions and EAF integration). 2024. https://www.recyclingtoday.com/news/nucor-tower-factory-alabama-steel-recycling-eaf-history/
33. Fastmarkets. With easily accessible steel scrap of utmost importance, US mills look to integrate. 2024. https://www.fastmarkets.com/insights/with-easily-accessible-steel-scrap-of-utmost-importance-us-mills-look-to-integrate/
34. Recycling Today. Top 20 Ferrous Scrap Processors in the United States (scrap-recycling acquisition activity: 18 deals 2021–2025 vs. 11 in 2005–2020). 2025. https://www.recyclingtoday.com/article/top-20-ferrous-scrap-processors-in-the-united-states/