Other Plastics Product Manufacturing (U.S.) — NAICS 32619

An investor's rollup primer for public-market and private investors

1. Overview

NAICS (North American Industry Classification System) code 32619, "Other Plastics Product Manufacturing," is the residual heart of America's plastics-converting base — the industry that buys plastic resin pellets and molds, extrudes, or thermoforms them into finished parts and products [1]. It rolls up two child industries: 326191, Plastics Plumbing Fixture Manufacturing (the molded-plastic and fiberglass corner of the bathroom — tubs, shower stalls, toilet seats, portable toilets) and 326199, All Other Plastics Product Manufacturing (everything else plastic that doesn't have its own code — bottle caps and closures, vinyl flooring, siding and trim, containers, and the vast tail of custom-molded industrial and consumer parts) [1].

By our federal figures this is a very large, mature manufacturing base: about 5,833 plants and 410,729 workers turning out roughly $128.8 billion of product a year [2][3]. For an investor, three facts frame everything. First, this is a conversion business across both children — profit hinges on the spread between the selling price of a molded part and the cost of the resin that goes into it, and on keeping expensive machines running. Second, it is overwhelmingly a private-market industry: thousands of family-owned and private-equity-backed molders and fabricators, with only a thin slice of public exposure buried inside diversified companies. Third, there is no pure-play public stock for this code, or for either child — public investors reach it only through business segments of larger firms (Section 4).

The single most important thing to understand about this level is its lopsidedness: the "All Other" child (326199) is about 95% of the whole thing by every measure, while the bathware child (326191) is a small, more concentrated niche riding on top. The rollup's real value is the contrast between them.

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

The two children share the same core economics (buy resin, shape it, sell at a spread) but differ sharply in size, structure, concentration, and end-markets. The comparison table is the point of this primer.

The one-line contrast: 326199 is a huge, ultra-fragmented, GDP-paced industrial base where value hides in specialty niches; 326191 is a small, freight-protected, housing-cyclical niche with a handful of consolidated brand owners on top of a fragmented fabricator tail. Because 326199 is 20 times larger, it sets the character of the whole level — the rollup looks like "fragmented custom molding" even though one of its two children is meaningfully consolidated.

A note on classification boundaries. This code is specifically the residual plastics categories. Plastics that have their own NAICS codes sit outside it — bags and pouches (326111), packaging film and sheet (326112/326113), pipe and profile shapes (326121/326122), foam (326140/326150), and bottles (326160) — as does the upstream resin itself (325211, plastics material and resin) [1]. So "plastic products" in everyday speech is far bigger than this code. There is also a classification time-series break: the 2022 NAICS definition includes resilient floor coverings, while prior classifications treated resilient flooring separately, so pre- and post-2022 comparisons are not clean growth rates [5].

3. How big it is (the rollup)

Our federal figures (U.S. Census Bureau) give the ground truth for U.S.-based production at this level:

A few reads. The children sum cleanly into this level — establishments (287 + 5,546 = 5,833) and employment (18,118 + 392,611 = 410,729) match the parent exactly, and receipts (≈$6.05B + $122.7B) reconcile to ~$128.8B [2][3][4][5]. Average pay of roughly $56,900 per worker is typical blue-collar manufacturing. The concentration numbers are striking: a CR4 of 8.1% and an HHI of 35.8 make this one of the least concentrated manufacturing industries in the country (the U.S. merger-guideline threshold for "unconcentrated" is an HHI below 1,500 — this level is 40 times below it). That extreme fragmentation is entirely the 326199 child pulling the average down; the bathware child on its own is far more concentrated. An EPA economic analysis for the larger child classified 4,693 of 4,965 firms as small under the applicable SBA test [14].

The undercount caveat. Because this is genuine payrolled factory manufacturing — not an industry of sole proprietors, gig workers, or government — the federal statistics capture it well, with little hidden informal activity. Three real caveats remain, and they are about boundaries more than undercount:

1. This is a residual "all other" bucket. Where a given product lands can blur — a firm making both bottles (326160, a different code) and caps (here) splits across codes — so the edges are softer than the tidy total suggests.
2. Imports and captive production aren't fully in it. The receipts figure is U.S. factory output, so it understates U.S. consumption (finished plastic goods and bath modules are also imported), and some plastic parts are molded inside auto, RV, and manufactured-housing plants and counted under those industries instead. Note also that relevant tariff classifications group plastic tubs and showers with unrelated goods, making exact import and export measurement impossible [15].
3. Firm counts don't add perfectly. The children report 249 + 4,697 = 4,946 firms versus the parent's 4,939, because a few firms operate plants in both child industries and are counted once at the parent level [2][4][5]. The gap is trivial and expected.

Cutting the other way, market-research totals for "plastic products" you may see quoted are several times these figures — they span the entire plastics-product family (all of NAICS 3261) plus resin, not just this residual slice [9].

4. The investable universe — where value concentrates across the children

There is no U.S.-listed pure-play company on this level or on either child. Public-market investors reach it only through business segments of larger, diversified firms, and the value is not spread evenly — it concentrates in a few specialty and substitution niches, most of them inside the giant 326199 child. Tickers and revenue figures below are for orientation and move with the market; they are total-company numbers, not the plastics slice.

Where public value concentrates (mostly in 326199):

Bathware exposure (the small 326191 child): the same "no pure play" problem, one layer down. Public exposure is indirect — Masco (NYSE: MAS) and Fortune Brands Innovations (NYSE: FBIN) touch the bathroom mostly through metal fittings and faucets, while Lippert (NYSE: LCII) and Patrick Industries (Nasdaq: PATK) make molded bath units as one component line inside recreational-vehicle (RV) and housing supply businesses [25][26][27]. Masco's Plumbing Products segment reported ~$5.0 billion in 2025 sales with ~17.9% operating margin [25]. Lippert and Patrick announced an all-stock merger on June 30, 2026, creating a ~$8.1 billion-revenue components platform (close expected in the first half of 2027) — concentrating the RV/housing exposure into one name [28].

Recent M&A reshaping the landscape. Amcor completed its all-stock combination with Berry Global on April 30, 2025 [19]. Novolex completed its combination with Pactiv Evergreen on April 1, 2025 — neither Berry nor Pactiv should be treated as current standalone public comparables [29]. LIXIL licensed exclusive North American rights for American Standard, DXV and Eljer bathing products to American Bath Group in 2025 and transferred the Salem, Ohio manufacturing plant, strengthening ABG's position as the largest North American bathware maker [30].

Where the category actually lives — private owners. The center of gravity for both children is private. In bathware: American Bath Group (owned by Centerbridge Partners since 2020; brands include Aker, MAAX, Aquatic, Praxis, Hamilton, Neptune, Swan, Clarion, Aquarius, plus the newly acquired American Standard/DXV/Eljer bathing rights), Jacuzzi Brands (Investindustrial), Kohler (family-owned), Bemis Manufacturing (world's largest toilet-seat maker), PolyJohn and Satellite Industries (portable sanitation leaders), plus a long tail of regional cultured-marble and fiberglass fabricators [10][11][12][31][32][33]. In the broad plastics child: family molders (The Rodon Group, EVCO Plastics, Plastek), PE roll-ups, and in resilient flooring Shaw Industries (Berkshire Hathaway), Tarkett, and Mannington [5]. Bottom line: public-market investors get diluted, indirect exposure to a few niches; private investors get the pure exposure, which is where most of the ~$129 billion of activity sits.

5. How the money works

Both children run the same core model — conversion — which is why they sit in one industry:

• The resin spread is the whole game. Owners buy resin (polypropylene, polyethylene, PVC, ABS, PET, plus the acrylic sheet, polyester/vinyl-ester resins, and glass fiber used in bathware) and sell a shaped part at a markup over material plus conversion cost. A Plastics Industry Association analysis put materials at 66.6% of shipment value, payroll at 12.7%, and other operating costs at 20.7% — though the mix varies greatly by product type [34]. Gross margins are thin and the central skill is passing resin-price swings through to customers, usually with a lag written into supply contracts. Margins compress when resin spikes faster than prices reset, and expand when resin falls. A 2025-26 wave of fixture price increases (~3-15%) is the bathware version of the same dynamic [35]. Some processors, like Myers Industries, do not hedge resin with derivatives and acknowledge that significant resin-price increases can materially affect results [36].
• Capacity utilization drives returns. Molds and presses are costly fixed assets, so this is an operating-leverage business — run the plant full and you earn a return; a downturn that empties it crushes profitability fast. Utilization across plastics and rubber manufacturing tracks GDP closely and has recently run in the mid-to-high 70s percent range [37]. The sensitivity is real: Core Molding's large compression-press utilization fell from 73% in 2024 to 50% in 2025, while large injection-press utilization fell from 52% to 46% [24].
• Tooling and switching costs create sticky programs. Customers often fund the custom mold, and requalifying a new supplier is expensive, so a part locks to a molder for the life of a program — a narrow but real moat, strongest in automotive and medical.
• Freight economics add a regional moat (especially in bathware). Bulky, low-value-density items (a one-piece tub-shower; a bin) are expensive to ship relative to price, which protects domestic makers of large units from imports and pushes production toward regional plants near demand.
• Mix is everything. Commodity molding earns high-single-digit to mid-teens EBITDA (earnings before interest, taxes, depreciation and amortization) margins; specialty and regulated niches — pharma/beauty dispensing, composite decking, medical parts — can run 20-25%+ [18][21]. Core Molding reported 17.4% gross margin and 5.2% operating margin in 2025, while Myers' more proprietary Material Handling segment produced 18.1% operating margin and 24.1% adjusted EBITDA margin [23][24]. Two companies both labeled "plastics" can have completely different economics.

Manufacturing methods. Conversion processes span injection molding (the dominant method in the larger child), blow molding, extrusion, compression molding, rotational molding, thermoforming, and resin-transfer molding. The bathware child adds specialized methods: acrylic tubs and shower bases are generally thermoformed over molds and reinforced; fiberglass-reinforced units are commonly open-molded with polyester resin, gel coat, and chopped glass fiber, a process that emits styrene and triggers EPA air-emissions rules [38][39].

6. What drives demand

Demand is a broad bet on the U.S. economy, spread across end-markets, with a few forces sitting on top of the cycle:

• Packaging — caps, closures, dispensers, containers — is the single largest pull, tied to consumer staples, beverages, food, and healthcare (326199) [9].
• Building and construction drives both children: bath fixtures for new bathrooms and remodels (326191), and siding, trim, resilient flooring, and composite decking (326199). The bigger, steadier sub-driver is repair-and-remodel (R&R) spending — Harvard's Joint Center for Housing Studies (JCHS) projected annual improvement spending near $518 billion by the end of 2026 via its Leading Indicator of Remodeling Activity (LIRA) [6]. Interest rates and home turnover matter a lot. The median U.S. housing-stock age reached 44 years in 2023, a long-duration replacement driver [40].
• New residential construction. Privately owned U.S. housing starts were running at a seasonally adjusted annual rate of 1.177 million in May 2026, 8.7% below May 2025 — a headwind for builder-oriented volumes [7].
• Automotive lightweighting — plastic replacing metal to improve fuel economy and electric-vehicle range — keeps substituting into vehicle builds (326199); this segment is volatile and sensitive to vehicle build rates and customer concentration [9][24].
• Aging in place is a durable, demographics-driven tailwind unique to the bathware child: roughly 90% of Americans over 65 want to stay in their homes, and a Census report found that about 4 million U.S. households containing an adult aged 65 or older had difficulty using some feature of their home in 2019, driving walk-in tubs and barrier-free showers largely independent of the housing cycle [6][41].
• Tub-to-shower substitution is reshaping product mix in bathware: in the National Kitchen & Bath Association's 2026 survey, 55% of respondents said a larger shower was more important than retaining a bathtub, with growing interest in curbless entries, seating, and wellness features [42].
• Secular substitution and shale-gas feedstock cut across both — plastic taking share from wood/metal/glass, and cheap U.S. ethane giving domestic resin (and therefore converters) a cost advantage [9][36].

Recent sector trends. BLS data for plastics and rubber products manufacturing (NAICS 326, the parent sector) show recent weakness: output changes of −6.3% in 2023, −1.8% in 2024, and −3.4% in 2025, combined with rising unit labor costs of 10.4%, 4.0%, and 2.6% in those respective years [8]. BLS monthly data for 326199 specifically show private employment declining from 303,515 in January 2024 to 292,497 in December 2024, a 3.6% drop [43].

7. Regulation

Neither child is heavily licensed, but both face rising compliance cost, concentrated in different places:

• Packaging policy overhang (326199). Extended Producer Responsibility (EPR) laws in seven states (California, Colorado, Maine, Maryland, Minnesota, Oregon, Washington) shift the cost of collecting and recycling packaging onto producers, phasing in through the late 2020s; Washington describes itself as the seventh state and covers packaging made from plastic, paper, metal, and glass [44][45]. California SB 54 requires a 25% cut in single-use plastic and full recyclability/compostability by 2032 [46]. Recycled-content mandates and PFAS ("forever chemicals," per- and polyfluoroalkyl substances) restrictions add reformulation cost.
• Air-emissions rules on fiberglass and surface coating. Open-mold fiberglass-reinforced-plastic (FRP) production emits styrene, a hazardous air pollutant; the U.S. Environmental Protection Agency (EPA) NESHAP (National Emission Standards for Hazardous Air Pollutants) imposes maximum achievable control technology (MACT) on facilities above ~1.2 tons/year of styrene resins — favoring closed-mold and acrylic processes over the small FRP tail [38]. EPA's plastic-parts surface-coating rule (NESHAP) separately regulates organic hazardous pollutants including toluene, glycol ethers, and xylenes for facilities with finishing operations [47].
• Product standards and codes. FDA (Food and Drug Administration) rules govern food-contact cups/closures and molded medical parts; plastic bath and shower units are built to CSA B45.5/IAPMO Z124 and related ANSI/ASME standards [48]; plumbing and accessibility codes (Uniform/International Plumbing Code, ADA — Americans with Disabilities Act) govern which bath fixtures may be installed; the Virginia Graeme Baker Pool and Spa Safety Act governs anti-entrapment drain covers on spas/hot tubs [49].
• Worker safety. OSHA (Occupational Safety and Health Administration) limits worker styrene exposure; the agency specifically identifies workers making tubs and showers as potentially exposed and associates exposure with central-nervous-system effects [50].
• Trade. Tariffs on resin and finished imports (including Section 301 duties on Chinese goods) shape competition with low-cost Asian producers — cutting both ways for a freight-protected domestic base.

Larger, better-capitalized firms absorb this compliance cost more easily, so regulation is quietly a scale advantage.

8. Competitive dynamics and consolidation

The level as a whole is one of the most fragmented manufacturing industries in the country — CR4 of 8.1% and an HHI of 35.8 [2] — because the giant 326199 child is a commodity floor with thousands of small molders and low entry barriers. But the two children run on opposite structures: 326199 is fragmented (top-50 firms are barely a third of receipts), while 326191 is meaningfully consolidated at the top (top-4 ~37%) [4][5].

Consolidation is the shared theme, driven by two engines:

1. Private-equity roll-ups of family firms, often triggered by aging owners with no succession plan — persistent in both custom molding (326199) and regional bathware fabrication, where American Bath Group executed exactly this buy-and-build and extended its position in 2025 by acquiring North American rights to American Standard, DXV and Eljer bathing products from LIXIL [10][30].
2. Strategic megadeals reshaping the top. In 2025, Amcor completed its combination with Berry Global [19], James Hardie acquired composite-decking/PVC-trim maker AZEK for ~$8.75 billion [20], and Novolex combined with Pactiv Evergreen [29]; closures specialists Aptar and Silgan keep making bolt-ons; and the pending Lippert-Patrick merger deepens vertical integration into RV/housing components [28].

Competitive edge comes from scale resin purchasing, automation, tooling and engineering capability, regulatory approvals (a moat in medical/pharma), and specialty intellectual property (dispensing systems). At the commodity end, import competition from Asia is relentless — cheap molded housewares helped push the iconic Tupperware into bankruptcy in 2024 [51] — while reshoring favors domestic molders for bulky, freight-sensitive, or just-in-time parts.

9. Risks

• Resin/feedstock volatility — the single biggest swing factor; a fast spike compresses margins until contracts reset [36].
• Cyclicality — heavy exposure to housing, autos, and industrial production, with operating leverage cutting both ways; the bathware child adds direct mortgage-rate sensitivity; recent BLS data show declining output and rising unit labor costs across the broader plastics sector [6][8].
• Regulatory/ESG overhang — EPR fees, single-use bans, recycled-content and PFAS rules, and emerging microplastics litigation raise cost, concentrated on packaging products [44][46].
• Import competition and tariffs — low-cost Asian supply pressures commodity molders; trade policy can help or hurt [51].
• Customer concentration — losing a major automotive or retail program can gut a molder's utilization; Core Molding's dependence on International Motors (28% of 2025 sales) illustrates the risk [24].
• Substitution and sentiment — anti-plastic sentiment and material substitution (paper, fiber, tile) threaten some lines even as plastic gains in others.
• Thermoset recycling risk — cured fiberglass composite material is difficult to remelt or recycle; regulation, retailer procurement policies or customer preferences could favor more recyclable thermoplastics or alternative materials [4].
• Thin margins and capital intensity — commodity converters have little cushion; capex and working capital are ongoing.
• Labor scarcity — shortages of composite workers, finishers, plant-maintenance technicians, remodelers, and plumbers constrain production and end-market projects [40].

10. How to invest, and the outlook

Public routes (indirect only). With no pure play at any level, public investors choose an end-market and buy the leader:

• Closures & dispensing — AptarGroup (ATR), Silgan (SLGN), Amcor (AMCR): the highest-margin, most defensible niche, thanks to pharma/beauty regulatory stickiness.
• Resilient flooring — Mohawk (MHK), Interface (TILE): an R&R and substitution play.
• Building products / decking — Trex (TREX), James Hardie (JHX, now with AZEK): a wood-substitution growth story with premium multiples and, in some cases, dividends.
• Containers & custom molding — Myers (MYE), Core Molding (CMT), UFP Technologies (UFPT): smaller, more cyclical, more resin-exposed.
• Bathware, indirectly — Masco (MAS), Fortune Brands (FBIN), Lippert/Patrick (LCII/PATK): really a bet on "U.S. housing and remodeling," not plastic tubs specifically.

Valuations track the mix: commodity-heavy names trade at low manufacturing multiples; specialty dispensing and branded building-products names command premiums.

Private routes (where the money actually is). This is fundamentally a private-market industry, and both children reward direct ownership: buyouts of family molders and regional bathware fabricators (a deep, succession-driven deal flow), PE roll-up platforms, search-fund acquisitions of single plants, ownership of the bath-remodel installation channel (Bath Fitter, Re-Bath, Jacuzzi Bath Remodel), and private-credit/BDC (business development company) lending to sponsor-backed converters. Deal quality hinges on customer diversification, program stickiness, resin pass-through terms, and automation.

Near-term outlook (forward-looking). The base case is a mature, roughly GDP-paced industry — currently showing weak operating momentum with declining output and rising unit labor costs — with modest, choppy growth. Watch the resin-to-price spread (margin), capacity utilization (fixed-cost absorption), the path of interest rates and the R&R cycle (volume for both building-products children), auto build rates, and the rolling cost of EPR/recycled-content programs. Housing starts are running below year-ago levels, a headwind for builder-oriented volumes, though remodeling activity is expected to keep expanding at a low-single-digit pace into 2026 before softening [6][7]. In judgment terms, value concentrates away from commodity molding — which stays fragmented, cyclical, and margin-thin — and toward specialty and regulated niches (pharma dispensing, medical parts), material-substitution stories (composite decking, LVT), and the small but durable aging-in-place bathware theme. The clearest structural positives are substitution and demographics; the clearest structural pressures are resin volatility and the tightening regulatory overhang on single-use plastics.

---

Sources

1. U.S. Census Bureau / NAICS Association, "NAICS 2022 — Code 32619 and children 326191 (Plastics Plumbing Fixture Manufacturing) and 326199 (All Other Plastics Product Manufacturing): definitions, scope, and exclusions," 2022. https://www.census.gov/naics/?input=32619&year=2022
2. U.S. Census Bureau, "2022 Economic Census — Concentration and Selected Statistics, NAICS 32619" (receipts ~$128.77B; 4,939 firms; CR4 8.1%, CR8 11.9%, CR20 20.3%, CR50 34.6%; HHI 35.8). https://www.census.gov/programs-surveys/economic-census.html
3. U.S. Census Bureau, "County Business Patterns 2023, NAICS 32619" (5,833 establishments; 410,729 employees; ~$23.35B annual payroll; ~$5.78B first-quarter payroll). https://www.census.gov/programs-surveys/cbp.html
4. U.S. Census Bureau, "2022 Economic Census / County Business Patterns 2023, NAICS 326191" (receipts ~$6.05B; 287 establishments; 18,118 employees; CR4 37.4%; HHI 517.7), 2022/2023. https://www.census.gov/programs-surveys/economic-census.html
5. U.S. Census Bureau, "2022 Economic Census / County Business Patterns 2023, NAICS 326199" (receipts ~$122.7B; 5,546 establishments; ~392,611 employees; 4,697 firms; CR4 8.5%; HHI 38.8), 2022/2023. https://www.census.gov/programs-surveys/economic-census.html
6. Harvard Joint Center for Housing Studies, "Leading Indicator of Remodeling Activity (LIRA) — Remodeling Growth Set to Downshift in Late 2026," 2026. https://www.jchs.harvard.edu/blog/remodeling-growth-set-downshift-late-2026
7. U.S. Census Bureau, "New Residential Construction" (housing starts 1.177M SAAR May 2026, −8.7% YoY), 2026. https://www.census.gov/construction/nrc/current/
8. U.S. Bureau of Labor Statistics, Industries at a Glance: Plastics and Rubber Products Manufacturing (NAICS 326), output and unit labor cost data 2023-2025. https://www.bls.gov/iag/tgs/iag326.htm
9. Grand View Research, "Plastic Resins Market Size & Share" (whole-family plastics totals dwarf this residual code; substitution and end-market drivers), 2025. https://www.grandviewresearch.com/industry-analysis/plastic-resins-market
10. American Bath Group, "Our Portfolio / About ABG," 2026. https://americanbathgroup.com/about/abg-brands/
11. SpaRetailer, "Investindustrial Completes Acquisition of Jacuzzi Brands," 2023. https://sparetailer.com/investindustrial-completes-acquisition-of-jacuzzi-brands/
12. Kohler Co., "Our Brands — Kitchen & Bath (Kohler, Sterling, Hytec)," 2026. https://www.kohlercompany.com/our-brands/kitchen-bath/
13. U.S. Small Business Administration, "Table of Size Standards" (NAICS 32619 children = 750 employees), 2023. https://www.sba.gov/document/support-table-size-standards
14. U.S. EPA, Economic Analysis for TSCA Section 6 Risk Management (Attachment 10), 2021 industry data for NAICS 326199. https://downloads.regulations.gov/EPA-HQ-OPPT-2020-0720-0204/attachment_10.pdf
15. American Composites Manufacturers Association, "ACMA Targets Statistics Flaws" (tariff classifications group plastic tubs/showers with unrelated goods), 2024. https://acmanet.org/acma-targets-statistics-flaws/
16. Yahoo Finance / 360Quadrants, "Luxury Vinyl Tiles Company Evaluation Report 2025" (Mohawk ~$10.8B; Shaw, Tarkett), 2025. https://finance.yahoo.com/news/luxury-vinyl-tiles-company-evaluation-141300724.html
17. Silgan Holdings Inc., "Fourth Quarter and Full Year 2024 Results" (net sales ~$5.9B), Jan. 2025. https://www.businesswire.com/news/home/20250129643120/en/
18. Stock Analysis, "AptarGroup (ATR) Revenue" (~$3.6B, FY2024). https://stockanalysis.com/stocks/atr/revenue/
19. Amcor plc, "Amcor completes merger with Berry Global" and SEC filing (~$23B pro forma; ~77,000 employees, 400+ facilities), 2025. https://finance.yahoo.com/news/amcor-completes-merger-berry-global-112829156.html
20. James Hardie Industries / SEC Form 6-K, "James Hardie completes acquisition of AZEK" (~$8.75B; completed July 1, 2025), 2025. https://www.sec.gov/Archives/edgar/data/1159152/000119312525151900/d52013dex991.htm
21. Stock Analysis, "Trex Company (TREX) Revenue" (~$1.15B, FY2024). https://stockanalysis.com/stocks/trex/revenue/
22. Myers Industries Inc., "Fourth Quarter and Full Year 2024 Results" (net sales ~$836M), Mar. 2025. https://www.businesswire.com/news/home/20250306076380/en/
23. Myers Industries Inc., Fourth Quarter 2025 Results (Material Handling segment: $622M sales, 18.1% operating margin, 24.1% adjusted EBITDA margin). https://www.sec.gov/Archives/edgar/data/69488/000119312526092509/mye-ex99_1.htm
24. Core Molding Technologies Inc., 2025 Form 10-K (fiscal year ending Dec. 2025; sales $273.8M, gross margin 17.4%, operating margin 5.2%; press utilization data). https://www.sec.gov/Archives/edgar/data/1026655/000102665526000009/cmt-20251231.htm
25. Masco Corporation, "Form 10-K, Fiscal Year 2025" (Plumbing Products segment ~$5.0B net sales, ~17.9% operating margin), 2026. https://www.sec.gov/Archives/edgar/data/62996/000006299626000005/mas-20251231.htm
26. Fortune Brands Innovations, Inc., "Form 10-K, Fiscal Year 2024" (Water Innovations net sales ~$2.6B; total revenue ~$4.6B), 2025. https://www.sec.gov/Archives/edgar/data/1519751/000095017025026763/fbin-20241228.htm
27. Lippert (LCI Industries), "RV Kitchen & Bath — thermoformed ABS/acrylic showers, tubs, and surrounds," 2026. https://corporate.lippert.com/products/rv/kitchen-and-bath
28. Patrick Industries / LCI Industries, "Patrick Industries and LCI Industries to Combine in All-Stock Merger" (June 30, 2026; ~$8.1B combined revenue; close expected H1 2027), 2026. https://ir.patrickind.com/investor-news-events/press-releases/detail/310/
29. PR Newswire, "Novolex and Pactiv Evergreen Inc. Complete Combination," Apr. 1, 2025. https://www.prnewswire.com/news-releases/novolex-and-pactiv-evergreen-inc-complete-combination-creating-a-leading-manufacturer-in-food-beverage-and-specialty-packaging-302417036.html
30. LIXIL Corporation, "LIXIL Licenses American Standard, DXV and Eljer Bathing Products to American Bath Group," 2025. https://newsroom.lixil.com/20250402?hs_amp=true
31. Wikipedia, "Bemis Manufacturing Company" (world's largest toilet-seat manufacturer, Sheboygan Falls, WI), 2026. https://en.wikipedia.org/wiki/Bemis_Manufacturing_Company
32. PolyJohn Enterprises, "Manufacturing" (leading portable-restroom manufacturer), 2026. https://www.polyjohn.com/manufacturing
33. Satellite Industries, "About Us" (largest manufacturer of portable restrooms), 2026. https://satelliteindustries.com/about-us
34. Plastics Industry Association, "Rising US Labor Costs: Implications for Plastics Industry for 2026" (materials 66.6% of shipment value, payroll 12.7%, other 20.7%), 2025. https://www.plasticsindustry.org/blog/rising-us-labor-costs-implications-for-plastics-industry-for-2026/
35. First Chair, "Home Renovation Cost Statistics 2026" (fixture price increases ~3-15%), 2026. https://www.firstchair.app/blog/home-renovation-cost-statistics
36. PlasticsToday, "Plastics Makers Navigate Resin Price Pressures," 2025; Myers Industries Inc., 2025 Form 10-K (resin hedging disclosure). https://www.plasticstoday.com/resin-pricing/resin-prices-rise-as-geopolitics-reshape-plastics-supply
37. Federal Reserve Board, "Industrial Production and Capacity Utilization — G.17" (manufacturing utilization ~75.8%; plastics & rubber [NAICS 326] tracks GDP), 2026. https://www.federalreserve.gov/releases/g17/current/g17.pdf
38. U.S. Environmental Protection Agency, "Final NESHAP: Reinforced Plastic Composites Production — Fact Sheet" (styrene MACT; ~1.2 tons/year applicability threshold), 2015/2019. https://www.epa.gov/sites/production/files/2015-11/documents/final_neshap_reinforced_plastic_composites_production_-_fact_sheet.pdf
39. U.S. Environmental Protection Agency, "Shower Stall and Bathtub Manufacturing Study" (process description, styrene emission sources), 2015. https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100LUN7.TXT
40. Harvard Joint Center for Housing Studies, "Improving America's Housing 2025" (median housing-stock age 44 years; labor shortages), 2025. https://www.jchs.harvard.edu/press-releases/remodeling-soars-new-heights-industry-struggles-address-labor-shortages-and-urgent
41. U.S. Census Bureau, "Aging-Ready Homes Report" (~4M households with 65+ adult had difficulty using home features, 2019), 2023. https://www.census.gov/newsroom/press-releases/2023/aging-ready-homes.html
42. National Kitchen & Bath Association, "2026 Bath Trends Report" (55% prefer larger shower over bathtub; curbless, seating, wellness features), 2026. https://nkba.org/press/nkba-kbis-releases-annual-2026-bath-trends-report/
43. U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (QCEW), NAICS 326199, 2024 monthly data. https://www.bls.gov/cew/publications/employment-and-wages-annual-averages/2024/
44. Proskauer Rose LLP, "The 2025 Guide to EPR Packaging Compliance" (seven-state EPR), 2025. https://www.proskauer.com/alert/the-2025-guide-to-epr-packaging-compliance
45. Washington State Department of Ecology, WAC 173-950 Packaging Extended Producer Responsibility, 2026. https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-950
46. CalRecycle, "SB 54: Plastic Pollution Prevention and Packaging Producer Responsibility Act," 2022/2025. https://calrecycle.ca.gov/packaging/packaging-epr/
47. U.S. EPA, "Surface Coating of Plastic Parts and Products: National Emission Standards for Hazardous Air Pollutants (NESHAP)." https://www.epa.gov/stationary-sources-air-pollution/surface-coating-plastic-parts-and-products-national-emission
48. IAPMO, "Formal Interpretation — CSA B45.5/IAPMO Z124" (principal standard for plastic plumbing fixtures), 2021. https://www.iapmo.org/media/ovdoq0lo/formal-interpretation-csa-b455plusiapmo-z124-2017-2021-02.pdf
49. Consumer Product Safety Commission, "Pool and Spa Drain Covers" (16 CFR Part 1450, ANSI/APSP/ICC standard), 2026. https://www.cpsc.gov/Business--Manufacturing/Business-Education/Business-Guidance/Pool-and-Spa-Drain-Covers
50. Occupational Safety and Health Administration, "Styrene" (worker exposure in tub/shower manufacturing, CNS effects), 2026. https://www.osha.gov/styrene
51. CNN Business, "Tupperware files for bankruptcy after years of troubles," Sept. 18, 2024. https://www.cnn.com/2024/09/18/business/tupperware-files-bankruptcy/index.html