NAICS 33122 — Rolling and Drawing of Purchased Steel

An investor's primer. NAICS is the North American Industry Classification System, the U.S. government's standard code for industries. This is a "NAICS industry" (5-digit) sitting inside Steel Product Manufacturing from Purchased Steel. It contains two child industries: 331221 (Rolled Steel Shape Manufacturing) and 331222 (Steel Wire Drawing).

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1. Overview

Everything in this industry starts with steel that someone else already made. Companies here do not melt iron ore or run blast furnaces — that is the business of the integrated mills one level up (Nucor, Steel Dynamics, Cleveland-Cliffs, U.S. Steel, coded in NAICS 331110). Instead, firms in 33122 buy semi-finished steel — hot-rolled coil, wire rod, bar — and add one more shaping step: they cold-roll and coat it, cold-finish it to tighter tolerances, or draw it down into wire and wire products [3][4].

Economically that single fact drives almost everything. Because the expensive raw material (the steel) is purchased, the value these firms add is a thin conversion margin layered on top of a large, volatile steel-cost pass-through. Our ingested federal figures make this concrete: the level shipped about $24.6 billion of product in 2022 on an annual payroll of only $2.1 billion [1][2]. Payroll is roughly 8–9% of the value of shipments; purchased steel and other materials are the overwhelming rest. When steel prices move, revenue moves with them — and so does profit, for better or worse.

The children's own filings now put numbers on how thin the layer is. Worthington Steel, the largest listed operator in 331221's orbit, earned an adjusted EBITDA margin of 7.0% on fiscal 2025 net sales of $3.093 billion [6]; Insteel, the pure-play in 331222, earned a 14.4% gross margin in fiscal 2025 on sales of $647.7 million [7]. Those are different lines of the income statement and are not comparable to each other — but both sit far below what the headline "steel" label suggests, and both moved several points year over year on price and inventory timing rather than on volume.

For investors, this is a small, fragmented, deeply industrial niche. Nationally it is not concentrated, there is exactly one clean publicly traded pure-play (and it sits in only one of the two children), and a large share of the players are family-owned, foreign-owned, or private-equity-backed. It is a late-cycle bet on U.S. construction, autos, appliances, and infrastructure — wrapped around a leveraged view on the steel price.

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2. What's inside — the two children and how they differ

Both children buy steel and shape it, but they serve different end-markets, take different amounts of metal risk, and behave differently as businesses.

• 331221 — Rolled Steel Shape Manufacturing. Rolling or drawing plate, sheet, strip, rod, and bar — but not wire — from purchased steel [4]. In practice that means pickling, slitting, cut-to-length, blanking, temper-rolling to tighter gauge, leveling, and coating, plus more specialized work such as laser-welded automotive blanks and stamped electrical-steel laminations [5]. Output feeds automakers, appliance and machinery builders, and industrial customers that need tighter dimensions and better surface finish than the mill delivers. This is the higher value-add, higher-paying child.

• 331222 — Steel Wire Drawing. Drawing wire from purchased hot-rolled wire rod, and making the products that come out of wire plants: nails, fencing, wire mesh, springs, tire bead wire, welding wire, rope and strand, and construction products such as PC strand (prestressed-concrete strand, the high-strength cable inside bridge girders and parking decks) and WWR (welded wire reinforcement, the steel mesh in concrete slabs) [3]. Note the classification quirk: a plant that both draws the wire and fabricates it into fence, mesh, or nails stays here, while a plant that buys finished wire and only fabricates does not [3].

The sharpest structural difference is who owns the metal. 331221 has two commercially distinct operating models: direct sale, where the processor buys the steel and earns the spread, and toll processing, where the customer keeps title to the steel and simply pays a conversion fee. Plants can shift between the two as demand changes, and direct tonnage reports far more revenue per ton than toll tonnage does [5]. 331222 has no comparable escape hatch — drawers buy the rod, finance it, and carry its price risk. That single difference means revenue figures are much less comparable inside 331221 than inside 331222, and it makes 331221 the child with a genuine lever for dialing commodity exposure up or down.

Contrast table (size figures are our ingested County Business Patterns 2023 data — CBP is the Census Bureau's annual establishment tally — unless noted) [1][3][4][5][6][7][12][13][17][18][19]:

The core divergence — and a correction. By plant count the two children still move in opposite directions: 331221 has been adding establishments as autos and machinery reshore and as domestic finishers gain from tariffs, while 331222 has been shedding them into fewer, larger plants [1]. But corporate consolidation now runs the other way. The two largest transactions anywhere in this level happened in 331221 — Worthington Steel taking a majority interest in Klöckner & Co and Ryerson merging with Olympic Steel [12][13] — while 331222's consolidation is a series of small bolt-ons [7]. More plants and fewer owners are not contradictory; they are what an industry looks like when capacity grows and the buyers get bigger at the same time.

Also note the payroll/jobs mismatch: the children are near-even by headcount, but 331221 carries more payroll, reflecting pay per worker roughly 30% higher [1].

A note on the year-to-year figures: CBP applies statistical "noise" to protect individual firms' confidentiality, and several 33122 cells carry noise flags. Single-year jumps (especially 331221's 2021→2022 step) should be read as directional, not to the last worker.

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3. Size (this level's rollup figures)

From our ingested ground-truth federal statistics for NAICS 33122 [1][2]:

• Value of shipments: ~$24.6 billion (2022 Economic Census).
• Firms: 305 (2022). Establishments: 442 (2023 CBP). The firm count sits below the establishment count, so multi-plant companies are common.
• Employment: 28,403 (2023). Annual payroll: ~$2.10 billion (2023). First-quarter payroll: ~$525 million.
• Revenue per worker: ~$867,000 — extremely high, and the clearest signal that purchased steel, not labor, dominates the cost base. Read it as a steel-price artifact rather than a productivity measure: direct-sale revenue includes the full cost of the metal, while toll revenue includes only the conversion fee for the same tonnage [5].

For scale, do not confuse this level with the mills that supply it. U.S. raw-steel production ran about 82 million metric tons in 2025 with sales value near $149 billion [11] — a much larger, economically different market upstream of everything described here.

Data-quality caveats — these got worse, not better, on this pass.

• Neither child could reconstruct its own size from public sources. The 331221 research could not establish a current, defensible revenue, shipment-value, or establishment count for that six-digit code from the Economic Census, and could not establish a concentration ratio or Herfindahl index for it either. The 331222 research reached the same conclusion on revenue and concentration; the most recent narrow Census product figure it could retrieve was $5.421 billion of steel-wire-drawing product shipments in 2015 — too dated to represent present market size, and a product measure rather than company revenue [10]. Our ingested CBP and Economic Census figures for the combined 33122 therefore remain the only consistent size frame at this level.
• Independent trade data disagrees with CBP on 331222. The American Wire Producers Association's preliminary December 2023 compilation, built from Bureau of Labor Statistics employment and wage data, counts 260 facilities, 10,518 employees, and $716.9 million in annual wages for wire drawing [8]. CBP counts 198 establishments, 14,260 employees, and ~$0.92 billion in payroll for the same child [1]. The AWPA figures show more facilities and roughly a quarter fewer workers — a definitional gap, not an error in either source, since AWPA counts wire fabricators, spring makers, and steel mills in separate categories that must not be added back in [8]. We report both and use CBP for the level rollup because only CBP reconciles to the 33122 totals. An investor sizing this child should know the range, not a point.
• Per-child receipts and concentration are still not separately available in our ingested statistics — the Economic Census reports those only for the combined 33122 — so section 2's per-child splits lean on employment and payroll, not sales.
• Captive lines are invisible. An unknown share of establishments are processing lines inside larger diversified steel companies, so "independent" ownership is overstated by any firm count. CBP also counts employer establishments only, but for a capital-intensive steel-processing industry that gap is trivial.

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4. Investable universe — where the value sits across the children

There is no large, clean public basket for 33122, and this pass made the public roster narrower, not wider: two of the listed names investors previously used for this level have merged into one, and the survivors have grown in directions that dilute their 33122 content.

Public, closest to a pure-play (331222):

• Insteel Industries (NYSE: IIIN) — the one genuinely clean public read on this level, and it reads only one child. Self-described largest U.S. manufacturer of steel-wire reinforcing products, with eleven U.S. plants focused on PC strand and welded wire reinforcement, and fiscal 2025 sales of $647.7 million [7]. It is a wager on U.S. construction volume, rod spreads, and trade enforcement — not a diversified proxy for all wire drawing.

Public, adjacent / partial exposure:

• Worthington Steel (NYSE: WS) — the largest independent flat-rolled processor, with carbon processing, electrical-steel laminations, and tailor-welded products; in fiscal 2024 it served ~1,400 customers across twenty U.S. plants, with the three largest customers at ~32% of net sales [5]. Its majority acquisition of Klöckner & Co (~62% of shares, closed June 3, 2026) adds a broad international service-center business and makes the post-deal company less of a clean 331221 proxy [12].
• Ryerson (NYSE: RYZ) — completed its merger with Olympic Steel on February 13, 2026, with former Olympic holders taking ~37% of the combined company, which management describes as North America's second-largest metals service center [13]. Much of its activity is distribution or fabrication rather than 331221 conversion, and its mix spans aluminum and stainless as well as carbon steel.
• Reliance (NYSE: RS) — owns Feralloy, described as one of the country's largest high-volume flat-rolled processors, with U.S. and Mexican facilities [15].
• Nucor (NYSE: NUE) — owns half of NuMit, owner of sheet processor Steel Technologies [16]. Embedded exposure inside a much larger integrated steelmaker; buying NUE for 331221 exposure means buying mill economics.
• Leggett & Platt (NYSE: LEG) — runs a U.S. rod mill of roughly 500,000 tons annual capacity, about half of whose output feeds its own wire-drawing mills serving bedding operations and external customers; the wire economics are buried inside the Bedding Products segment [18].
• Bekaert (Euronext Brussels: BEKB) — Belgian-listed global steel-wire transformation company spanning tire reinforcement, energy-transition wire, and specialty coatings. Broad technology exposure, but much less sensitivity to the narrow U.S. category [19].

Private (much of the level): On the rolled-shape side, Heidtman Steel Products (Bates family; nine facilities with affiliates, more than two million square feet of production space, and processing/distribution capacity above five million tons a year) and Samuel, Son & Co. anchor a base of regional coil processors and mill- or customer-affiliated toll operations [17]. On the wire side, Heico Companies (Davis Wire, National Standard) [20], WireCo WorldGroup (steel and synthetic rope, nearly 4,000 employees worldwide) [21], and specialists including Fort Wayne Metals, Sumiden, Mid-South Wire, Tree Island, Kiswire, and Tokusen [8]. Insteel separately names Wire Mesh Corporation, Nucor, Oklahoma Steel & Wire, Davis Wire, National Wire Products, and Concrete Reinforcements as principal welded-wire competitors, and Sumiden Wire Products and Wire Mesh Corporation in prestressed strand [7]. No source establishes a defensible ranking of any of these firms by U.S. 33122 revenue — treat the list as major identifiable participants, not a market-share league table.

Reality check for investors: the only size-pure listed exposure (Insteel) is a small-cap tied to one child and one end-market, and every larger name mixes this activity with distribution, other metals, or steelmaking. Consolidation in 331221's orbit has made the listed companies bigger while making them thinner reads on actual conversion processing. There is no dedicated public fund or index tracking this level; broad steel and metals ETFs mainly own steelmakers and miners, which is economically different exposure.

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5. How the money works

The P&L (profit-and-loss statement) here is a spread business, and both children describe it in nearly identical terms:

Revenue = tons shipped × realized selling price (direct sale) or tons processed × conversion fee (toll work, available in 331221 but not meaningfully in 331222).
Conversion margin = selling price (or fee) minus purchased steel or rod, freight, and other variable costs.

1. Steel price dominates revenue. With purchased metal the dominant cash cost in both children, reported sales rise and fall with steel prices even when tonnage is flat. Worthington's fiscal 2025 supplier list — Cleveland-Cliffs, NLMK Indiana, North Star BlueScope, Nucor, Steel Dynamics, U.S. Steel — is a roster of the mills whose pricing sets its input cost [6].
2. Timing, not the price level, sets the margin. What matters is the conversion spread and when contracts reset. Ryerson described the trap precisely in late 2025: mill prices rose faster than its average selling prices while demand stayed restrained and contract resets lagged, compressing margins [14]. The reverse also bites — when prices fall, high-cost inventory is sold into a lower market. Insteel quantifies the same exposure from the wire side: a 10% increase in wire-rod cost would have cut annual pretax earnings by $37.5 million if selling prices had not moved [7]. That is the whole industry in one sentence.
3. The mitigations are structural, not clever. Match customer and mill contract indices, keep inventory turns high, use firm-price contracts or futures, and shift toward toll work where the customer finances the metal. Worthington says nearly all of its indexed customer contracts are mirrored against supplier mechanisms, and that its inventory program reduced inventory tonnage by 16% [22].
4. Fixed-cost absorption is the second swing factor. Rolling, coating, slitting, drawing, and heat-treatment lines carry meaningful capital, maintenance, and skilled labor regardless of utilization. Volume declines hit conversion revenue and absorption together; incremental throughput is attractive once a line is staffed, especially in tolling where little extra working capital is required.

What actual margins look like. Worthington reported adjusted EBITDA margins of 5.7% (fiscal 2023), 8.4% (fiscal 2024), and 7.0% (fiscal 2025, on $3.093 billion of net sales), with net earnings attributable to its controlling interest at 3.6% of sales [6]. Insteel's gross margin rose to 14.4% in fiscal 2025 from 9.4% in fiscal 2024, most of the improvement attributed to a wider spread between selling prices and raw-material cost plus higher shipments [7]. These are different income-statement lines at two companies with different product mixes and should not be compared to each other or read as industry margins — but they make the same point twice: several points of margin move year to year on spread and inventory timing, at scaled operators, in both children.

Capital intensity is real but modest by mill standards: Insteel's fiscal 2025 capital expenditures were $8.2 million, down from $19.1 million, mostly maintenance and productivity projects [7].

This is why regulated-utility rate-base, REIT (real estate investment trust) FFO, or mining all-in sustaining cost framing does not apply — this is a classic conversion-spread industrial. Watch the spread per ton, capacity utilization, inventory turns, and contract-index matching, not a rate base or a distribution yield.

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6. Demand drivers

The children's end-markets barely overlap, which is the main reason to hold them as separate exposures rather than one.

• Automotive (mainly 331221): the most important flat-rolled end market. Demand follows vehicle production, platform awards, and stamping schedules rather than vehicle sales alone, so strikes, model changeovers, and plant relocations can remove local volume abruptly [5]. On the wire side, autos consume tire-bead and hose-reinforcement wire, seating springs, and suspension components.
• Construction and infrastructure (mainly 331222): PC strand goes into bridges, parking structures, and precast members; welded reinforcement into slabs, pipe, culverts, and walls; tie wire, fencing, and nails into general building. Insteel estimated 85% of its fiscal 2025 sales related to nonresidential construction and 15% to residential, and points to continuing IIJA (Infrastructure Investment and Jobs Act) federal investment as support for public nonresidential work [7].
• Electrification and electrical steel (a 331221-only growth pocket, and new to this primer): non-grain-oriented electrical steel for motors and grain-oriented steel for transformers. The Department of Energy points to data centers, electric vehicles, charging stations, and renewable generation as transformer-demand drivers, and estimates that roughly 55% of in-service distribution transformers are more than 33 years old [27]; it has also identified domestic lamination, core, and grain-oriented-electrical-steel capacity as supply-chain investment needs [28]. This favors processors with stamping, annealing, bonding, and core-assembly capability over commodity slit-coil operations.
• Industrial, agriculture, and appliances (both): machinery, heavy trucks, farm equipment, and appliances consume processed flat-rolled steel; fencing, baling wire, welding consumables, springs, fasteners, and rope for cranes, elevators, and offshore lifting consume drawn wire.
• Substitution cuts both ways. In 331221 it is a threat and an opportunity at once: aluminum displaces conventional sheet, and advanced high-strength steel puts less metal in each vehicle — but higher-strength grades are harder to slit, form, and weld, which raises the value of metallurgical support, precision processing, and tailor-welded blanks [5]. In 331222 the flow partly runs toward the industry: engineered welded mesh is taking share from manually placed rebar, with vendor claims that welded mats can eliminate as much as 90% of bar hand-tying [23]. Against that, synthetic rope competes with steel rope in weight-sensitive uses [21].

Both children are late-cycle, and both are more volatile than their end-markets. Steel prices amplify the demand cycle through customer inventory behavior: buyers build stock when they expect increases or shortages and destock when prices fall, making processor and drawer shipments swing harder than underlying consumption.

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7. Regulation

• Trade — the double-edged sword, now with evidence. Section 232 of the Trade Expansion Act of 1962 lets the President impose national-security tariffs on steel; the additional rate has generally been 50% since June 4, 2025 [24], and 2026 proclamations retained a 50% rate for core metal articles while introducing different treatment for several derivative-product categories [25]. Protection helps domestic re-rollers and drawers by keeping cheap imported finished product out, but it also raises their own input cost. The wire child now shows this is not theoretical: Insteel sourced approximately 27% of fiscal 2025 rod purchases from imports, up from 15% in fiscal 2024, and states that trade actions can materially change availability and cost [7]. The right question is not "do tariffs help steel" but an HTS-level view of each company's feedstock and finished-goods import exposure, its pass-through ability, and its inventory position when policy changes.
• Domestic-content rules. Build America, Buy America (BABA) and long-standing Buy America requirements demand U.S.-made steel through all manufacturing processes on federally funded infrastructure — a direct advantage for domestic wire, strand, and mesh. FHWA requires domestic manufacturing processes for steel and iron permanently incorporated into federally funded highway projects, and its manufactured-product waiver ended on March 20, 2025 [26]. The benefit to 331221 is more indirect, arriving where purchased coil is further rolled, coated, or cut for compliant infrastructure products.
• Safety. OSHA (Occupational Safety and Health Administration) machine-guarding, lockout/tagout, crane, and material-handling rules govern high-speed coil-processing and drawing lines [31]. The Bureau of Labor Statistics reported a 2023 total-recordable injury and illness rate of 3.1 cases per 100 full-time workers for NAICS 331221, against 2.4 for private industry overall [29]; no comparable published rate was established for 331222, but the hazard set — moving coils, wire recoil, welding, heat treatment, acids — is at least as demanding.
• Environment. Acid pickling, coating chemicals, annealing and reheating energy use, metal-bearing sludges and oils, wastewater discharge, and legacy industrial-site remediation liabilities all apply, in both children. The footprint remains far lighter than primary steelmaking — no blast furnace — so cost and scrutiny are lower than at the mills upstream, and carbon regulation arrives indirectly through electricity, fuel, and purchased-steel prices.
• Customer-imposed regulation. Specifications, quality audits, traceability, destructive and nondestructive testing, and product-liability exposure for defective material are a real compliance burden in both children — and a barrier to entry that protects incumbents.

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8. Consolidation

At the national level this industry is not concentrated. Our ingested 2022 concentration figures show the top four firms at 25.3% of shipments, top eight at 36.4%, top twenty at 56.1%, and an HHI (Herfindahl-Hirschman Index — the antitrust measure of concentration, where 1,500+ is "moderately concentrated") of just 249.8 [2]. That is a fragmented, competitive market on paper. Neither child's independent research could establish a current concentration ratio or HHI at the six-digit level, so the combined 33122 figures above are the only concentration data this level has.

What changed on this pass is the direction of corporate consolidation. Both children now describe themselves as fragmented but consolidating, and the biggest moves are in 331221, not 331222:

• 331221: Worthington Steel acquired a majority interest in Klöckner & Co, with approximately 62% of shares secured as of June 3, 2026 [12]; Ryerson completed its merger with Olympic Steel on February 13, 2026, with former Olympic holders receiving approximately 37% of the combined company [13]. Meanwhile plant count is still rising (204→244 establishments, 2017→2023) [1]. Fewer, larger owners running more plants.
• 331222: consolidation is slower and smaller-ticket — Insteel paid $67.0 million for most of Engineered Wire Products' assets and related Liberty Steel Georgetown assets, then $5.1 million for selected O'Brien Wire Products inventory and equipment before relocating some of it into existing plants [7]. No shipment, EBITDA, or capacity figures were disclosed for the acquired businesses, so transaction multiples cannot be established from public filings. Plant count here is falling: 252→198 establishments over 2017–2023 [1]. Large ownership is not new — as far back as 2015, enterprises with at least 500 employees controlled 58 establishments and 7,507 of 15,103 industry jobs, roughly half [9].

Scale in both children buys the same things: steel-purchasing leverage, freight density, automation, and the ability to serve large customers with just-in-time programs across multiple sites. Smaller operators defend themselves the same way in both: short production runs, unusual grades or dimensions, specialized finishing, regional service, and customer qualifications that favor incumbents [5][8]. Regionally, freight costs on heavy steel and bulky wire create pockets of local concentration even where the national picture looks fragmented — a mesh or nail plant often dominates its shipping radius.

By SBA (U.S. Small Business Administration) standards, the size threshold for both children is 1,000 employees [30]. Since the average plant employs only 58–72 people [1] and even multi-plant firms rarely cross 1,000, essentially the entire industry qualifies as "small business" — a telling measure of how modest these companies are individually, and a reminder that the handful of listed names sit well outside the typical participant.

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9. Risks

• Input-price mismatch is the dominant risk in both children: coil or rod costs can move before customer prices reset, expanding or compressing the spread unpredictably [7][14].
• Inventory losses: high-cost metal bought near a peak may be sold after prices fall. Margins are lumpier than the underlying demand.
• Cyclicality: autos, construction, industrial, agricultural, and capital spending turn down together, and customer destocking amplifies the swing.
• Captive and upstream competition: the integrated mills also make cold-rolled steel and wire, competing with independents that must buy their steel from those same mills. Nucor is simultaneously a supplier, a competitor named by Insteel in welded wire, and an owner of processing capacity through NuMit [7][16].
• Trade-policy whipsaw: tariffs protect the output but inflate the input, and the regime is politically and legally changeable — a reversal creates the opposite inventory shock [24][25].
• Material substitution: aluminum in vehicles, advanced high-strength grades reducing tonnage per unit, and wood, concrete, composites, and plastics elsewhere [5]; synthetic rope against steel rope [21].
• Customer concentration: large OEMs, distributors, and contractors hold bargaining power — Worthington's three largest customers were approximately 32% of fiscal 2024 net sales [5].
• Supplier consolidation: fewer upstream mills reduces purchasing leverage, and specialty inputs can be tight — Worthington identifies zinc as a raw material with a limited supplier base [6].
• Thin margins, capital intensity, and utilization: lines cost money whether or not they run, and excess capacity invites discounting.
• Labor and safety: both children depend on experienced operators, maintenance technicians, and metallurgists, and 331221's recordable injury rate runs above the private-sector average [29]. Shortages hit throughput and safety together; customer or supplier strikes can halt volume.
• Environmental and qualification liability: pickling, coating, wastewater, and legacy sites carry remediation and capital exposure; weld defects, coating failures, or traceability problems can cause recalls, claims, or lost approvals.
• Acquisition integration: the 2026 mergers in 331221 introduce execution risk at exactly the companies investors would use for exposure.
• Investability and data risk: limited pure-play public options, an illiquid private tail, and — as section 3 shows — no reliable current per-child revenue or concentration data to underwrite against.

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10. How to invest & outlook

Public-market investors. The only clean listed exposure to this level remains Insteel Industries (IIIN), and it reads one child and one end-market: a small-cap wager on U.S. construction volume, wire-rod spreads, and trade enforcement [7]. For 331221 there is no pure-play at all. Worthington Steel (WS) is the closest, with the caveat that the Klöckner acquisition and its lamination and tailor-welded lines make it broader than the code [6][12]; Ryerson (RYZ) offers scaled processing after the Olympic merger but mixes distribution, aluminum, and stainless [13]; Reliance (RS) and Nucor (NUE) carry smaller embedded exposure through Feralloy and Steel Technologies [15][16]; Leggett & Platt (LEG) buries wire economics inside bedding [18]; Bekaert (BEKB) is a global technology portfolio with limited U.S.-specific sensitivity [19]. No dedicated fund or index tracks this level, and broad steel ETFs mainly own steelmakers and miners. Treat these as cyclical industrials tied to the conversion spread — there is no dividend-yield or utility-style income thesis here.

Private-market investors. The larger opportunity is the fragmented private base: regional coil processors, toll operations, and coating lines in 331221; commodity drawers, specialty alloy and stainless producers, coating and heat-treatment specialists, and wire-product companies with captive drawing in 331222. Both children converge on the same diligence checklist, which is worth restating as this level's own: separate distribution gross margin from real conversion earnings; separate direct tons from toll tons; separate spot from indexed contracts; separate a commodity inventory windfall from sustainable processing margin; separate maintenance from growth capital expenditure; and separate customer-approved capacity from merely installed capacity. Plant adjacency, customer qualifications, line utilization, inventory turns, contract-index matching, and program concentration matter more than headline revenue.

Outlook. On paper the setup favors domestic producers: a 50% tariff wall on imported steel [24][25] plus multi-year infrastructure spending and domestic-content rules [7][26] support pricing and volume for domestic wire, strand, and cold-finished product, while electrification adds a genuine growth pocket in electrical steel [27][28]. The offsets are just as real, and both children independently reach the same conclusion — those same tariffs inflate the purchased-steel input, spare capacity and volatile input costs can overwhelm demand growth, margins remain thin and timing-driven, and competition from the integrated mills is structural. Both also describe the same winner: the operator that matches purchase and sale indices, keeps plants utilized, holds inventory turns tight, and sells qualified product where metallurgy, precision, and service beat the lowest quoted price. In short: 331221 is the reshoring-and-electrification story with no pure-play to buy it through; 331222 is the construction-demand, spread-and-consolidation story with exactly one. Both are leveraged, at one remove, to the price of steel.

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Sources

1. U.S. Census Bureau, County Business Patterns (CBP) 2023 — establishments, employment, and payroll by NAICS and by legal form of organization; per-child figures for 331221 and 331222 (which sum to the 33122 totals). Ingested federal statistics.
2. U.S. Census Bureau, 2022 Economic Census — value of shipments, firm count, and concentration (CR4/CR8/CR20/CR50, HHI) for NAICS 33122. Ingested federal statistics.
3. U.S. Census Bureau, 2022 NAICS Definition: 33122 / 331222, 2022, https://www.census.gov/naics/?details=33122&input=33122&year=2022
4. U.S. Census Bureau, NAICS 331221 Definition, 2012, https://www.census.gov/naics/?details=331&input=331&year=2012
5. Worthington Steel, Fiscal 2024 Form 10-K, 2024, https://www.sec.gov/Archives/edgar/data/1968487/000095017024090031/ws-20240531.htm
6. Worthington Steel, 2025 Annual Report, 2025, https://www.sec.gov/Archives/edgar/data/1968487/000119312525181888/d879196dars.pdf
7. Insteel Industries, Fiscal 2025 Form 10-K, 2025, https://www.sec.gov/Archives/edgar/data/764401/000143774925031597/iiin20250927_10k.htm
8. American Wire Producers Association, National Data 2023, 2024, https://www.awpa.org/wp-content/uploads/2024/08/National-Data-2023.pdf
9. U.S. Census Bureau, 2015 Statistics of U.S. Businesses, 2017, https://downloads.regulations.gov/NLRB-2018-0001-9547/content.pdf
10. U.S. Census Bureau, 2015 Manufacturing and International Trade Report, 2016, https://www.census.gov/foreign-trade/Press-Release/MITR/2015/2015_Manufacturing_and_International_Trade_Report.pdf
11. U.S. Geological Survey, Mineral Commodity Summaries 2026, 2026, https://pubs.usgs.gov/periodicals/mcs2026/mcs2026.pdf
12. Worthington Steel, Klöckner Acquisition Form 8-K, 2026, https://www.sec.gov/Archives/edgar/data/1968487/000119312526254547/d31520dex991.htm
13. Ryerson Holding Corporation, Ryerson and Olympic Steel Announce Successful Closing of Merger, 2026, https://ir.ryerson.com/news/news-details/2026/Ryerson-and-Olympic-Steel-Announce-Successful-Closing-of-Merger/default.aspx
14. Ryerson Holding Corporation, Fourth Quarter and Full Year 2025 Results, 2026, https://ir.ryerson.com/news/news-details/2026/Ryerson-Reports-Fourth-Quarter-and-Full-Year-2025-Results/default.aspx
15. Reliance, Inc., Our Family of Companies, 2026, https://reliance.com/our-family-of-companies/
16. Nucor Corporation, Company History, 2026, https://nucor.com/company/history/
17. Heidtman Steel Products, Company History, 2026, https://www.heidtman.com/about/
18. Leggett & Platt, 2025 Form 10-K, 2026, https://www.sec.gov/Archives/edgar/data/58492/000005849226000107/leg-20251231.htm
19. Bekaert, Investor Information, 2024, https://www.bekaert.com/en/investors
20. Heico Companies, Metal Processing Group, 2024, https://heicocompanies.com/metal-processing-group/
21. WireCo WorldGroup, Company Profile, 2024, https://wireco.com/company/
22. Worthington Steel, Investor Presentation, 2025, https://www.sec.gov/Archives/edgar/data/1968487/000119312525223315/ws-ex99_3.htm
23. Insteel Industries, Cast-in-Place Applications, 2024, https://insteel.com/products-services/Cast-in-place/default.aspx
24. White House, Adjusting Imports of Aluminum and Steel into the United States, 2025, https://www.whitehouse.gov/presidential-actions/2025/06/adjusting-imports-of-aluminum-and-steel-into-the-united-states/
25. White House, Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper into the United States, 2026, https://www.whitehouse.gov/presidential-actions/2026/06/further-adjusting-the-tariff-regimes-for-imports-of-aluminum-steel-and-copper-into-the-united-states/
26. Federal Highway Administration, Buy America Guidance, 2025, https://www.fhwa.dot.gov/construction/cqit/buyam.cfm
27. U.S. Department of Energy, Distribution Transformer Types and Demand Drivers, 2024, https://www.energy.gov/oe/articles/energy-department-researches-distribution-transformer-types-and-demand-drivers
28. U.S. Department of Energy, Summary of Supply Chain Opportunities, 2024, https://www.energy.gov/sites/default/files/2024-06/Summary%20of%20Supply%20Chain%20Opportunities%20-%20June%202024.pdf
29. Bureau of Labor Statistics, Injury and Illness Rates by Industry, 2023, 2024, https://www.bls.gov/iif/nonfatal-injuries-and-illnesses-tables/table-1-injury-and-illness-rates-by-industry-2023-national.htm
30. U.S. Small Business Administration, Table of Small Business Size Standards (2023) — 331221 and 331222 = 1,000 employees.
31. OSHA machine-guarding, lockout/tagout, crane, and material-handling standards applicable to steel rolling and wire-drawing operations.

Ground-truth note: level figures (shipments, employment, payroll, firm count, concentration, HHI) are drawn from our ingested federal statistics for NAICS 33122 [1][2]. Per-child size splits are derived from ingested CBP 2023 employment and payroll [1]; per-child receipts and concentration are not separately available in our ingested data, and neither child's independent research could establish them from public sources. Independent trade-association data disagrees with CBP on the size of 331222 and both are reported in section 3 [1][8]. Company facts are from the named SEC filings and public sources referenced in the child research. One caveat on confidence: the revised 331222 child rests on a single independent research brief — a second brief intended for cross-validation could not be completed — so wire-drawing figures carry less corroboration than the rolled-shape figures.