U.S. Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing: An Investor Primer
NAICS 2022 industry 33243 — a rollup of two child industries: 332431 (Metal Can Manufacturing) and 332439 (Other Metal Container Manufacturing).
1. Overview
This industry makes the light-gauge metal packaging that carries much of what Americans drink, eat, spray and ship: aluminum and steel cans on one side, and steel drums, pails, boxes and specialty containers on the other. "Light gauge" simply means thin-walled metal, which separates this group from heavy-gauge tanks and pressure vessels (a different code).
The single most useful thing to understand about the level is that it is two rather different businesses stapled together under one North American Industry Classification System (NAICS) code. One child — metal cans — is a large, capital-intensive, consumer-facing business with real public-stock exposure, sold largely on multi-year contracts. The other — other metal containers — is a smaller, more fragmented, more industrial business that is almost entirely privately owned and sells close to spot. They share metalworking economics (fill expensive lines, pass through metal costs, keep freight radii short) but sell into different end markets, answer to different regulators, sit at different points in the cycle right now, and offer investors very different ways in.
Because the two children differ so much, the highest-value part of this primer is the contrast between them. That comes first.
2. What's inside — the two child industries and how they differ
NAICS 33243 contains exactly two industries:[1]
- 332431 Metal Can Manufacturing — aluminum beverage cans; steel and aluminum food and pet-food cans; aerosol and general-line cans; lids and ends.
- 332439 Other Metal Container Manufacturing — light-gauge steel drums, pails, barrels, bins, boxes, vats, mailboxes and specialty containers.
The federal statistics for the level split cleanly between them, and the split tells the story. Note the direction of the contrast: the "other container" child has more plants, but the "can" child has far more workers, payroll and value — because can plants are large, fast and capital-intensive, while drum-and-pail plants are smaller and more numerous.
| 332431 — Metal Can | 332439 — Other Metal Container | |
|---|---|---|
| What it makes | Beverage, food, pet-food, aerosol and general-line cans | Steel drums, pails, barrels, boxes, bins, specialty containers |
| Establishments (share of level) | 170 — 40%[2] | 252 — 60%[2] |
| Employment (share of level) | 22,475 — 69%[2] | 10,127 — 31%[2] |
| Annual payroll (share of level) | ~$1.98B — 76%[2] | ~$620M — 24%[2] |
| Pay per worker (calculated) | ~$88,100 | ~$61,240 |
| Employees per establishment (calculated) | ~132 | ~40 |
| Own revenue measure (different sources and years — not additive) | $20.57B sales/value of shipments, 2023 (Annual Integrated Economic Survey)[3] | ~$3.96B preliminary receipts, 2022 dollars, from an EPA analysis of federal business statistics[4] |
| Direction of travel | Stable to modestly growing; beverage formats and pet food lead. Human-food cans are shrinking outright — U.S. food-can shipments fell from 26.3 billion units in 2022 to 24.4 billion in 2023 and 23.7 billion in 2024[5] | Currently contracting, not merely cyclical: Greif's steel-drum segment saw a volume-led sales decline and warned that the multi-year industrial contraction was likely to continue into fiscal 2026[6] |
| How it sells | Multi-year contracts with metal pass-through; Silgan puts ~90% of projected 2026 metal-container sales under multi-year arrangements, Ardagh Metal Packaging >80% of 2025 revenue under two- to seven-year agreements | Near-spot: Greif says many industrial-packaging customers order weekly for same-week delivery, implying little finished-goods backlog |
| Who owns them | Predominantly corporate — 140 of the 170 establishments are C-corporations or similar[2]; the strongest public-equity presence in the level, plus institutional, family and captive owners | Corporate in legal form (~90% of employment, ~85% of establishments) but overwhelmingly private in ownership[2]; one diversified public operator, otherwise private-equity platforms, family firms and an employee-owned specialist |
| How to invest | Direct via listed packaging and beverage-can stocks; also private plant/platform deals | Mostly private-market (private equity, family, employee ownership); one diluted public proxy |
Establishment, employment and payroll figures are 2023 County Business Patterns; pay per worker and employees per establishment are calculated from those figures.[2] The two children sum exactly to the level's 422 establishments, 32,602 employees and ~$2.60 billion payroll, so these shares are arithmetic, not estimates. One caution on the payroll split: the can child also carries a 2023 payroll of $1.61 billion from the Annual Integrated Economic Survey, a different methodology from County Business Patterns.[3] The shares above use County Business Patterns for both children so they are like-for-like; on the survey basis the can child's computed payroll share would be lower. Both federal figures are valid — the split is source-dependent, not a single fact.
The one-line takeaway: cans are where the value and the public stocks are; other containers are where the plant count, the fragmentation and the private-equity activity are.
3. Size — the level as a whole
The preferred federal figures for NAICS 33243 are:
| Metric | U.S. total |
|---|---|
| Employer establishments, 2023 | 422[2] |
| Employment, 2023 | 32,602[2] |
| Annual payroll, 2023 | ~$2.60 billion[2] |
| First-quarter payroll, 2023 | ~$661 million[2] |
| Pay per worker, 2023 (calculated) | ~$79,800[2] |
| Shipments/receipts, 2022 | ~$26.3 billion[7] |
| Employer firms, 2022 | 276[7] |
| Four-firm concentration ratio (CR4), 2022 | 51.4%[7] |
| Eight-firm ratio (CR8), 2022 | 71.8%[7] |
| Twenty-firm ratio (CR20), 2022 | 86.0%[7] |
| Fifty-firm ratio (CR50), 2022 | 95.9%[7] |
| Herfindahl–Hirschman Index (HHI), 2022 | 844.3[7] |
Revenue: the level is no longer the only place with a top-line figure. The level carries a federal shipments figure of about $26.3 billion in 2022,[7] and each child now carries a revenue measure of its own — $20.57 billion of 2023 sales/value of shipments for the can child,[3] and roughly $3.96 billion of preliminary 2022 receipts for the other-container child, drawn from federal business statistics by an Environmental Protection Agency (EPA) economic analysis and explicitly preliminary.[4] These three numbers come from three different programs and two different years; they should not be added, netted or reconciled against each other. What they do confirm is the direction the payroll split already implied: the overwhelming majority of the level's value sits in the can child, and it is a large majority, not a narrow one.
Concentration: published only here, and it blends two markets. Neither child publishes usable concentration ratios or an HHI of its own — the can child's Economic Census record supplies firm and establishment counts (68 employer firms, 175 establishments and 21,594 employees in 2022) but no concentration measure,[8] and no authoritative ratio was available for the other-container child at all.[4] So the level-wide statistics in the table are the only published gauge, and they mix a nationally consolidated can business with a more fragmented drum-and-pail business. Read them carefully. The HHI of 844 (on a 0–10,000 scale) sits in territory the federal antitrust agencies treat as unconcentrated in aggregate, yet the top four firms already hold just over half of shipments and the top fifty hold 96%. Because of the blend, the aggregate understates how concentrated each sub-market is on its own — a reading the children now support directly with company-reported submarket evidence (Section 8). HHI is a standard concentration gauge (the sum of each firm's squared market share); CR4/CR8/CR20/CR50 are the combined shares of the largest 4/8/20/50 firms.
Firm counts do not reconcile across sources. The Economic Census reports 276 employer firms for the level and 68 for the can child in 2022.[7][8] The EPA-derived figure for the other-container child alone is 261 firms and 295 establishments in the same year.[4] Those cannot sit on the same basis — 68 plus 261 exceeds the level total. Use the Economic Census figures when comparing children to the level, and treat the EPA counts as scoped to that analysis.
Trade-association counts run broader than the federal ones. The Can Manufacturers Institute describes a domestic footprint of roughly 135 billion food, beverage, aerosol and general-line cans a year, more than 28,000 workers and about $15.7 billion of direct economic activity.[9] That worker count exceeds the can child's federal employment of 22,475 because the association's definition is broader; the two are not comparable line for line.
No published utilization series. The Federal Reserve tracks output for the NAICS 33243 group, but the detailed metal-container series is unpublished and there is no stand-alone federal capacity-utilization rate for either child.[10] Investors assessing whether this level's lines are full have to work from company disclosure, not a federal gauge.
Undercount caveat. Federal business statistics count only establishments with paid employees; they exclude nonemployer (self-employed, no-payroll) businesses and most government units. For the can child this is a minor gap — high-speed canmaking needs heavy equipment and is not a cottage industry. For the other-container child the gap is larger and matters more: this is where small independent operators cluster, and closely related drum reconditioning is classified in a separate code (NAICS 811310), so a meaningful slice of economically linked activity — often owned by the very same platforms — sits outside these totals.[1]
4. Investable universe — where the value (and the access) concentrates
The level's investable value is lopsided, and it points the opposite way from the plant count.
Cans (332431) hold the value and nearly all the listed exposure. This child carries ~76% of the level's payroll and ~69% of its employment, and it is where public investors can actually own the business. Direct or near-direct listed exposure includes Ball (New York Stock Exchange, NYSE: BALL),[11] Crown Holdings (NYSE: CCK),[12] Silgan Holdings (NYSE: SLGN),[13] Ardagh Metal Packaging (NYSE: AMBP)[14] and Sonoco Products (NYSE: SON),[16] plus indirect captive exposure through Anheuser-Busch InBev (NYSE American depositary receipt, ADR: BUD), which owns can maker Metal Container Corporation.[17] (ADR = a U.S.-traded certificate representing shares of a foreign company.)
Two qualifications on that menu. First, listed does not mean liquid or independent: Ardagh Metal Packaging was approximately 76% controlled by Ardagh Holdings as of late 2025.[15] Second, segment revenue is not NAICS revenue — Ball's North and Central American beverage-packaging segment recorded $6.29 billion of 2025 sales at a 12% comparable operating margin but includes Canada and Mexico, and Silgan's metal-container segment produced $3.14 billion of 2025 sales at an 8.3% adjusted earnings-before-interest-and-taxes margin on a global footprint.[11][13] Ownership in the can child also runs through institutional holders (Ontario Teachers' Pension Plan holds roughly 58% of Trivium Packaging, Ardagh Group about 42%),[18] family groups (Giorgi Global Holdings behind CANPACK and Can Corporation of America; family-owned Envases)[19][20] and captive plants — AB InBev's Metal Container Corporation, and Rocky Mountain Metal Container, jointly owned by Molson Coors and Ball.[17][21] Captive capacity matters because it shrinks the merchant market a listed operator can actually compete for.
Other containers (332439) are where the private-market and small-independent value sits. Screening the narrow definition produces just one clear listed operator — Greif (NYSE: GEF and GEF.B) — and even that is a diversified packaging company. Its Durable Metal Solutions segment reported $1.37 billion of worldwide sales, of which $251.8 million was in the United States, for the eleven months ended September 2025, generating $282.5 million of gross profit (a 20.6% gross margin), $108.0 million of operating profit and $150.5 million of adjusted EBITDA.[6] Set that U.S. segment revenue beside the child's only retrieved industry revenue estimate of roughly $4 billion — different years and very different bases, so not a share calculation — and the point is plain: the listed slice of this child is thin. The rest of the field is private: private-equity platforms such as Mauser Packaging Solutions (Stone Canyon Industries)[22] and Skolnik Industries (Pelican Energy Partners),[25] family-controlled producers such as North Coast Container, assembled by the Stavig family and describing itself as the largest independent steel-drum manufacturer in North America,[23] and Schütz,[24] plus employee-owned Cleveland Steel Container, held through an employee stock ownership plan (ESOP).[26] The Industrial Steel Drum Institute's manufacturer roster adds ENGY Southwest Container Products and O'Bryan Barrel to that list.[27]
Net effect: a public-market investor's menu in this level is almost entirely the can child, while the other-container child is reached mainly through private-equity, family-business and employee-ownership channels.
5. How the money works
Both children run the same basic formula — units shipped × price × product mix — with high fixed costs, meaningful metal content, and a short economic freight radius because empty containers are bulky relative to their value, so plants sit close to the customers that fill them. Silgan says its metal-container plants generally serve customers within a 300-mile radius.[13] Beyond that shared skeleton, the economics diverge:
- Contract structure — the sharpest difference. The can child sells forward: Silgan puts approximately 90% of projected 2026 metal-container sales under multi-year arrangements, and Ardagh Metal Packaging reports more than 80% of 2025 revenue backed by two- to seven-year agreements.[13][14] The other-container child sells nearly spot: Greif says many industrial-packaging customers order weekly for delivery the same week, which means little backlog and almost no forward visibility.[6] Same freight radius, opposite demand visibility.
- Metal and pass-through. Cans consume aluminum can sheet and tinplate steel; other containers consume mostly flat-rolled steel coil. In both, selling prices typically carry contractual metal-cost adjustments, so revenue can rise on metal inflation without profit dollars rising in step; on the drum side those formulas are often tied to published indices and can lag market moves by months. Timing lags, tariffs, scrap and uncovered conversion costs still bite.[11][12][13][6]
- Variable versus fixed. Ardagh estimates variable costs at approximately 75% of its cost of sales and fixed costs at approximately 25%, with metal, energy, decoration, packaging and distribution in the variable bucket and labor, maintenance and depreciation in the fixed one.[14] That mix is why volume swings hit reported margins in both children faster than the headline metal exposure suggests.
- Fixed-cost absorption, demonstrated. On the can side, Silgan's metal-container adjusted EBIT margin moved from 9.0% in 2023 to 8.4% in 2024 — partly unfavorable mix and weaker absorption when a large fruit-and-vegetable customer cut its pack plan — and 8.3% in 2025.[13] On the drum side, Greif's Durable Metal Solutions sales fell $99.6 million, of which $70.7 million was lower volume and $26.1 million lower average selling prices, cushioned partly by lower raw-material costs.[6] Both are the same mechanism at different speeds.
- Value per worker. The can child pays ~$88,100 per employee versus ~$61,240 in the other-container child, and averages ~132 employees per plant versus ~40 — proxies for how much more capital-intensive and higher-throughput canmaking is.[2]
- Service revenue. The other-container child adds a layer cans lack: reconditioning, collection and lifecycle logistics, which generate service income and stickier customer ties — while also cannibalizing new-unit demand.[6][22]
- Seasonality. Cans carry consumer seasonality (food canning after harvest, with Silgan's peak working-capital borrowing in summer or early autumn; beverages in warm weather), which drives working-capital swings; other containers follow industrial order patterns instead.[13][14]
The most useful operating measures across both are unit shipments and price/mix excluding metal pass-through, line utilization and scrap, contracted volume and renewal dates, customer and supplier concentration, and capital spending versus depreciation.
6. Demand drivers
The demand engines are largely different, which is why the two children move on somewhat different cycles — and right now are moving in different directions.
- Cans are consumer-linked, with a widening internal split. Beverages (ready-to-drink alcohol, energy drinks, sparkling water, new launches) plus food, pet food and aerosol/household products drive volume, and Crown attributes recent North American growth partly to products introduced in cans rather than other formats.[12] Specialty slim and sleek formats have grown faster and can earn better margins — Ardagh says specialty cans were 51% of its 2025 shipments.[14] Human-food cans, by contrast, are declining outright: 26.3 billion U.S. units in 2022, 24.4 billion in 2023 and 23.7 billion in 2024, of which 14.9 billion were human-food and 8.8 billion pet-food cans.[5] Pet food is the healthy piece — Silgan reported approximately 3% metal-container volume growth in 2025, primarily from pet-food demand.[13]
- Other containers are industrial-linked and currently in contraction. Chemicals, petroleum, paints and coatings, agriculture, food and pharmaceuticals are the core end markets, so demand tracks factory output and inventories rather than consumer spending — and Greif warned the multi-year industrial contraction was likely to continue into fiscal 2026 despite localized improvement.[6]
- Substitution cuts both ways. Metal competes with plastic (including polyethylene terephthalate, PET), glass, paperboard, flexible packaging and — for drums — fibre containers and larger reusable intermediate bulk containers (IBCs). Metal wins on barrier protection, fill speed, impact and fire performance, hazardous-material certification and recyclability; alternatives win on weight, cost or handling. Crown specifically warns that higher aluminum or steel prices relative to plastic resin can accelerate substitution.[12]
- Circularity means two different things here. For cans it is collection: the aluminum beverage-can recycling rate fell to 43% in 2023 against a historical average of about 52% since tracking began in 1990, even as the average U.S.-made can contained 71% recycled material and 96.7% of recovered can material returned to a closed-loop application.[28] For drums it is literal reuse: a 2023 trade-association survey estimated North American reconditioners processed 20.3 million steel drums, 3.1 million plastic drums and 4.6 million composite IBCs, with 60% of reconditioned steel drums used for hazardous materials.[29] High recyclability is a structural advantage for the level, but on the can side actual collection rates matter more than theory, and on the drum side reuse directly displaces new-unit demand.
7. Regulation
Both children answer to the Occupational Safety and Health Administration (OSHA) on machine guarding, welding, noise and chemical hazards,[30] and both are exposed to Section 232 metals tariffs — aluminum and tinplate for cans, steel for drums. That regime now generally applies duties of 50% to covered metal products and 25% to many derivative products, with temporarily reduced rates for specified equipment, and the incidence on can sheet, tinplate, finished containers or machinery depends on Harmonized Tariff Schedule classification.[31] A July 2026 proclamation additionally authorized half-rate primary-aluminum imports for companies with approved U.S. smelting-investment plans.[32] Tariffs are no longer a background variable at this level; they are a live cost input that can move faster than contracts reset.
Beyond that, the regulatory centers of gravity differ:
- Cans face food-safety and coating rules. Food-contact coatings, inks and sealants fall under Food and Drug Administration (FDA) food-contact-substance requirements, under which manufacturers must establish reasonable certainty of no harm from intended use.[33] Bisphenol A has historically been used in can coatings and producers are moving toward coatings that do not intentionally contain it, with state PFAS restrictions a further pressure; reformulation is not a simple raw-material swap, because a new coating must survive forming, seaming, sterilization and long-term contact with aggressive contents.[13][33]
- Other containers face hazardous-materials rules. Steel drums for hazardous contents must meet Pipeline and Hazardous Materials Safety Administration (PHMSA) design, testing and United Nations (UN) marking requirements under Title 49 of the Code of Federal Regulations, which distinguish tight-head from open-head designs and reach improper manufacture, marking, reconditioning or testing.[35] Reconditioning intersects the EPA's Resource Conservation and Recovery Act (RCRA) "empty container" rule for hazardous residues; the EPA continues to examine drum-reconditioning risks after its 2023 advance notice of proposed rulemaking, but as of July 2026 no final replacement rule was described.[36] That is an open regulatory overhang for the drum side.
- One shared environmental rule, contrary to the tidy split. The EPA's metal-can surface-coating National Emission Standards for Hazardous Air Pollutants (NESHAP) governs solvents such as glycol ethers, xylenes, hexane and methyl isobutyl ketone from coating and printing.[34] It is named for cans, but the same standard can reach cleaning, lining and painting operations at drum plants depending on facility size and process — not every establishment in the other-container child triggers it, but some do.[34]
For both children, compliance is simultaneously a cost and a barrier to entry; strong operators treat certifications, closing instructions, traceability and quality records as commercial assets.
8. Consolidation
Consolidation is real in both children but is at a different stage in each — one reason the level-wide concentration statistics (Section 3) blur the picture. With no published ratio for either child, the submarket evidence below is company- and association-reported, not federal.
- Cans are nationally consolidated, and the children now quantify it. The Federal Trade Commission required Ball to divest eight U.S. plants when it acquired Rexam in 2016, on regional standard-can and national specialty-can competition grounds.[37] In beverage cans, Ball estimates the North American aluminum beverage-can market at approximately 139 billion units in 2025, with five companies manufacturing substantially all supply and Ball itself shipping roughly 50 billion units, about 36% of aggregate North and Central American shipments — a regional estimate, not a U.S. NAICS market share.[11] In food cans, Silgan claims more than half of 2025 U.S. metal-food-container unit volume and estimates that only about 7% of U.S. metal food cans were still self-manufactured by food processors, the residue of decades of outsourcing.[13]
- Other containers are consolidating but still fragmented. Private-equity roll-ups and family platforms are steadily combining regional producers — the Stavig platform acquired General Steel Drum in 2011, North Coast Container in 2018 and Chicago Steel Container in 2022 before unifying the brands in 2023;[23] Mauser acquired lifecycle operator Consolidated Container in 2024;[22] Pelican Energy Partners bought Skolnik in 2025.[25] But no authoritative concentration ratio is published for the child alone, and the field retains many independents, so calling it highly concentrated would be unsupported.[27]
At the rollup level, CR4 of 51.4% and HHI of 844 describe the two blended together; taken literally they read as only moderately concentrated, but that average hides a tightly held can business — where two or three names dominate each submarket — and a more open drum-and-pail business.[7]
9. Risks
Shared across the level:
- Overcapacity and utilization: a few poorly timed new lines can depress regional pricing and fixed-cost absorption, and there is no federal utilization series to check it against.[10]
- Input-cost mismatch: contract formulas may not fully or promptly recover metal, energy, labor or tariff costs; steel and aluminum markets swing on outages, tariffs, scrap and ore costs, energy, labor disruption and geopolitics.[6]
- Supplier concentration: qualified metal suppliers are few. Ball says more than seven global suppliers provide almost all its North and Central American aluminum can- and end-sheet needs, and Silgan warns of consolidation and facility closures among steel, aluminum and coatings suppliers.[11][13]
- Substitution: plastic, glass, fibre, flexible packaging and reusable IBCs can take share.
- Customer concentration: large buyers hold leverage and dual-source, whether beverage and food companies on one side or chemical and coatings buyers demanding index-based pricing on the other.
- Labor: operations are people-dependent at speed; Silgan reports 31% of its U.S. and Canadian hourly plant employees were union-represented at year-end 2025.[13]
- Leverage: debt-funded roll-ups can turn stable operating earnings into volatile equity returns, and can understate assumed environmental obligations.
Skewed toward the can child: beverage/food demand-mix swings (weak beer or canned-food volumes outweighing energy-drink and pet-food growth), coating reformulation, food-contact or recall exposure.
Skewed toward the other-container child: industrial cyclicality that is currently biting, environmental and hazardous-waste liability from improperly emptied drums, unresolved EPA rulemaking on reconditioning, and reuse cannibalizing new-unit sales.[6][36]
10. How to invest and outlook
Where to look, by child. Public investors get genuine exposure almost only through the can child — compare BALL, CCK, SLGN, AMBP and SON on normalized conversion earnings (not revenue inflated by metal pass-through) and leverage, remembering that AMBP's float is small against Ardagh Holdings' ~76% control and that BUD is indirect.[15][17] The other-container child is a private-market game: Greif (GEF/GEF.B) is the lone, diluted public proxy, and even its U.S. steel-drum revenue is a fraction of its consolidated business, so the segment disclosure is the number that matters.[6] The real opportunities there are private-equity platforms, family businesses and employee-owned specialists reached through direct deals.
What to underwrite. In both children the returns come from utilization, contract quality, capital discipline and leverage rather than industry-wide volume growth. For cans, prioritize contracted volume and renewal dates, line utilization and uptime, specialty-versus-standard mix, customer diversification, freight radius, union expirations and metal pass-through terms. For other containers, reconcile new-versus-reconditioned revenue, test steel pass-through clauses and their lags, inspect environmental history, verify UN certifications and normalize earnings for mid-cycle utilization.
Outlook. The level is likely to stay stable to modestly growing rather than become a high-growth market, but the two children are not currently moving together, and the near-term evidence says so. In the first quarter of 2026 Crown reported global beverage-can shipments up 5%, including 1% growth in North America, and Silgan reported metal-container volume up 2% helped by double-digit pet-food growth;[38][39] over the same stretch Greif was warning that industrial contraction would persist into fiscal 2026.[6] So the can child should get a small tailwind from new beverage formats, pet food and some substitution toward aluminum, offset by a shrinking human-food can base; the other-container child is the cyclical laggard, with reuse further tempering new-unit demand. Across both, the spread between winners and losers will be set at the plant and contract level — not by the industry's overall volume.
Sources
- U.S. Census Bureau, "2022 NAICS Definitions: 33243, 332431, 332439," 2022, https://www.census.gov/naics/?input=33243&year=2022
- U.S. Census Bureau, "County Business Patterns: 2023 (NAICS 33243, 332431, 332439)," 2025, https://www.census.gov/data/datasets/2023/econ/cbp/2023-cbp.html
- U.S. Census Bureau, "Annual Integrated Economic Survey: NAICS 332431," 2025, https://test.data.census.gov/table/AIESBASICTIMESERIES.AIES31BASIC01?codeset=naics~332431&g=010XX00US
- U.S. Environmental Protection Agency, "Economic Analysis for TSCA Section 6 Rulemaking on Methylene Chloride," Table 3-1, 2024, https://downloads.regulations.gov/EPA-HQ-OPPT-2020-0642-0728/content.pdf
- Can Manufacturers Institute, "U.S. Food Can Shipment History," 2025, https://www.cancentral.com/wp-content/uploads/2025/04/CMI-Food-History-for-CC-1970-2024.pdf
- Greif, Inc., "Transition Report on Form 10-KT for the Period Ended September 30, 2025," 2025, https://www.sec.gov/Archives/edgar/data/43920/000162828025053146/gef-20250930.htm
- U.S. Census Bureau, "Economic Census 2022, Concentration of Largest Firms (NAICS 33243)," 2025, https://data.census.gov/table/ECNSIZE2022.EC2200SIZECONCEN?codeset=naics~33243&y=2022
- U.S. Census Bureau, "Selected Sectors: Concentration of Largest Firms for the U.S. (NAICS 332431)," 2025, https://data.census.gov/table/ECNSIZE2022.EC2200SIZECONCEN?codeset=naics~332431&y=2022
- Can Manufacturers Institute, "Who We Are," 2026, https://www.cancentral.com/
- Federal Reserve Board, "Industrial Production and Capacity Utilization: NAICS 332," 2025, https://www.federalreserve.gov/releases/g17/SandDesc/table1.06.htm
- Ball Corporation, "Annual Report on Form 10-K," 2026, https://www.sec.gov/Archives/edgar/data/9389/000110465926017410/ball-20251231x10k.htm
- Crown Holdings, "Annual Report on Form 10-K," 2026, https://www.sec.gov/Archives/edgar/data/1219601/000162828026012904/cck-20251231.htm
- Silgan Holdings, "Annual Report on Form 10-K," 2026, https://www.sec.gov/Archives/edgar/data/849869/000162828026012202/slgn-20251231.htm
- Ardagh Metal Packaging, "Annual Report on Form 20-F," 2026, https://www.sec.gov/Archives/edgar/data/1845097/000110465926024068/ambp-20251231x20f.htm
- Ardagh Metal Packaging, "Beneficial Ownership Filing," 2025, https://www.ardaghmetalpackaging.com/investors/sec-filings/all-sec-filings/content/0000947871-25-001031/primary_doc.html
- Sonoco Products, "Annual Report on Form 10-K," 2026, https://www.sec.gov/Archives/edgar/data/91767/000009176726000008/son-20251231.htm
- Anheuser-Busch InBev, "Completion of Metal Container Corporation Interest Repurchase," 2026, https://www.sec.gov/Archives/edgar/data/1668717/000119312526031755/d39375dex991.htm
- Trivium Packaging, "Sustainability Report," 2024, https://www.triviumpackaging.com/media/wo3nuzmb/trivium-sr-2024_v24_update.pdf
- CANPACK, "Supervisory Council," 2026, https://www.canpack.com/investor-relations/our-supervisory-council/
- Envases Group, "About Us," 2026, https://envases-group.com/about-us/
- Can Manufacturers Institute, "Member Companies and Products," 2026, https://www.cancentral.com/about/member-companies-products/
- Mauser Packaging Solutions, "Acquisition of Consolidated Container Company," 2024, https://www.prnewswire.com/news-releases/press-release--mauser-packaging-solutions-acquisition-of-consolidated-container-company-llc-302052351.html
- North Coast Container, "Our History," 2026, https://www.northcoastcontainer.com/about/our-history
- Schütz, "Company and Company News," 2023–2026, https://www.schuetz.net/en/company/
- Pelican Energy Partners, "Acquisition of Skolnik Industries," 2025, https://www.prnewswire.com/news-releases/pelican-energy-partners-announces-the-acquisition-of-skolnik-industries-302347504.html
- Cleveland Steel Container, "Employee Owned," 2026, https://www.cscpails.com/about/employee-owned/
- Industrial Steel Drum Institute, "Member Companies," 2026, https://whysteeldrums.org/member-companies/
- Aluminum Association and Can Manufacturers Institute, "Aluminum Beverage Can Recycling Key Performance Indicators," 2024, https://www.aluminum.org/news/amid-recycling-rate-decline-aluminum-beverage-can-remains-most-recycled-drinks-package
- Reusable Industrial Packaging Association, "2023 Industry Survey Report," 2025, https://www.reusablepackaging.org/wp-content/uploads/2025/05/Survey-Report-2023.pdf
- Occupational Safety and Health Administration, "Machine Guarding," 2026, https://www.osha.gov/machine-guarding/
- The White House, "Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper," 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/
- The White House, "Further Strengthening Actions Taken to Adjust Imports of Aluminum," 2026, https://www.whitehouse.gov/presidential-actions/2026/07/further-strengthening-actions-taken-to-adjust-imports-of-aluminum-into-the-united-states/
- U.S. Food and Drug Administration, "Food Ingredients and Packaging," 2026, https://www.fda.gov/food/food-ingredients-packaging
- U.S. Environmental Protection Agency, "Surface Coating of Metal Cans: National Emission Standards for Hazardous Air Pollutants," 2026, https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-cans-national-emission-standards-hazardous
- Pipeline and Hazardous Materials Safety Administration, "49 CFR Part 178—Packaging Specifications and Markings," 2026, https://www.phmsa.dot.gov/regulations/title49/part/178
- U.S. Environmental Protection Agency, "Used Drum Management and Reconditioning," 2026, https://www.epa.gov/hw/used-drum-management-and-reconditioning
- Federal Trade Commission, "FTC Requires Ball Corporation to Divest Eight Aluminum Can Plants," 2016, https://www.ftc.gov/news-events/news/press-releases/2016/06/ftc-requires-ball-corporation-divest-eight-aluminum-can-plants-ardagh-condition-acquiring-rexam
- Crown Holdings, "First Quarter 2026 Results," 2026, https://www.sec.gov/Archives/edgar/data/1219601/000162828026027502/ex99mar2026.htm
- Silgan Holdings, "First Quarter 2026 Results," 2026, https://www.sec.gov/Archives/edgar/data/849869/000162828026028421/a991_33126.htm