NAICS Code 33131: Alumina and Aluminum Production and Processing
NAICS industry
Definition
This industry comprises establishments primarily engaged in one or more of the following: (1) refining alumina; (2) making (i.e., the primary production) aluminum from alumina; (3) recovering aluminum from scrap or dross; (4) alloying purchased aluminum; and (5) manufacturing aluminum primary forms (e.g., bar, foil, pipe, plate, rod, sheet, tube, wire).
Government contracts for this product: PSC 9650 Nonferrous Base Metal Refinery and Intermediate Forms
Code facts
- Part of
-
-
31-33
-
331
- 3313
-
331
-
31-33
- Codes under it
- 4
- Contract awards
- 1,888 In the last 12 months
- Contract obligations
- $26,397,277 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $119,856 |
| FY2026 | $17,803,996 |
| FY2025 | $26,397,277 |
| FY2024 | $21,333,389 |
| FY2023 | $32,048,284 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | RIO Tinto Services Inc. | $2,628,984 | |
| 2 | Arconic Corporation | $2,627,390 | |
| 3 | Toyal America Inc. | $2,091,000 | |
| 4 | F & R Sales, Inc. | $1,073,167 | |
| 5 | Western Plastics, Inc. | $835,219 | |
| 6 | Murray Benjamin Electric Company LLC | $607,753 | |
| 7 | Roundtable Enterprises LLC | $589,882 | |
| 8 | Mandel Metals, Inc. | $489,952 | |
| 9 | Ryan Electronics Corporation | $345,920 | |
| 10 | Hoosier Industrial Supply, Inc. | $331,609 |
See the full FY2025 ranking of NAICS 33131 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $12,720,606 | |
| 2 | Department of the Army | $2,808,218 | |
| 3 | General Services Administration | $835,219 | |
| 4 | Department of Justice | $780,278 | |
| 5 | Department of the Navy | $538,587 | |
| 6 | Air Force | $153,993 | |
| 7 | National Aeronautics and Space Administration | $38,201 | |
| 8 | Department of Energy | $31,350 | |
| 9 | Department of Agriculture | $8,550 | |
| 10 | National Gallery of Art | $7,700 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 9650 Nonferrous Base Metal Refinery and Intermediate Forms | $5,265,412 | |
| 2 | 6145 Wire and Cable, Electrical | $3,080,008 | |
| 3 | 6810 Chemicals | $2,091,000 | |
| 4 | 5411 Rigid Wall Shelters | $1,078,756 | |
| 5 | 4930 Lubrication and Fuel Dispensing Equipment | $1,032,452 | |
| 6 | 9535 Plate, Sheet, Strip, and Foil: Nonferrous Base Metal | $984,527 | |
| 7 | 8135 Packaging and Packing Bulk Materials | $835,219 | |
| 8 | 5360 Coil, Flat, Leaf, and Wire Springs | $701,662 | |
| 9 | 9515 Plate, Sheet, Strip, Foil, and Leaf | $602,532 | |
| 10 | 9540 Structural Shapes, Nonferrous Base Metal | $589,882 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Indiana | $3,159,804 | |
| 2 | Nevada | $2,631,970 | |
| 3 | Oklahoma | $2,105,440 | |
| 4 | New Jersey | $1,055,688 | |
| 5 | Connecticut | $1,028,263 | |
| 6 | Georgia | $926,341 | |
| 7 | New York | $917,989 | |
| 8 | Florida | $662,392 | |
| 9 | Arkansas | $589,882 | |
| 10 | Illinois | $583,105 | |
| 11 | Pennsylvania | $475,558 | |
| 12 | California | $376,298 | |
| 13 | Louisiana | $259,615 | |
| 14 | Tennessee | $233,939 | |
| 15 | Washington | $221,190 | |
| 16 | Arizona | $175,254 | |
| 17 | Nebraska | $161,220 | |
| 18 | Massachusetts | $112,967 | |
| 19 | Texas | $107,358 | |
| 20 | Virginia | $90,218 | |
| 21 | Oregon | $89,669 | |
| 22 | Maryland | $78,735 | |
| 23 | New Hampshire | $75,678 | |
| 24 | South Dakota | $74,420 | |
| 25 | Wisconsin | $64,675 | |
| 26 | Alabama | $64,348 | |
| 27 | District of Columbia | $40,844 | |
| 28 | Minnesota | $14,220 | |
| 29 | Michigan | $10,342 | |
| 30 | Vermont | $5,994 | |
| 31 | Kansas | $5,989 | |
| 32 | South Carolina | $2,578 | |
| 33 | Missouri | $1,105 | |
| 34 | Kentucky | $1,010 | |
| 35 | North Carolina | $584 | |
| 36 | Idaho | $105 |
Show all 36
Shares are of everything obligated under NAICS 33131 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 4,213 listed here. See the rest on GovTribe.
Codes under 33131
| NAICS code | Size standard |
|---|---|
| 331313 Alumina Refining and Primary Aluminum Production | 1,300 employees |
| 331314 Secondary Smelting and Alloying of Aluminum | 750 employees |
| 331315 Aluminum Sheet, Plate, and Foil Manufacturing | 1,400 employees |
| 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
Quick answers
What is NAICS 33131?
NAICS 33131 is Alumina and Aluminum Production and Processing, a NAICS industry in NAICS 31-33, Manufacturing.
What codes are under NAICS 33131?
NAICS 33131 has 4 codes under it with their own GovTribe pages, including 331313 Alumina Refining and Primary Aluminum Production; 331314 Secondary Smelting and Alloying of Aluminum; and 331315 Aluminum Sheet, Plate, and Foil Manufacturing.
How much do federal agencies spend under NAICS 33131?
Federal contracts under NAICS 33131 obligated $26,397,277 in fiscal year 2025 and $97,702,803 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 33131?
The contractors with the most obligated under NAICS 33131 in fiscal years 2026 and 2027 are RIO Tinto Services Inc. ($2,628,984), Arconic Corporation ($2,627,390) and Toyal America Inc. ($2,091,000).
Which agencies buy the most under NAICS 33131?
The agencies that obligated the most under NAICS 33131 in fiscal years 2026 and 2027 are Defense Logistics Agency ($12,720,606), Department of the Army ($2,808,218) and General Services Administration ($835,219).
Which PSC codes are used with NAICS 33131?
The PSC codes with the most obligated under NAICS 33131 in fiscal years 2026 and 2027 are 9650 Nonferrous Base Metal Refinery and Intermediate Forms; 6145 Wire and Cable, Electrical; and 6810 Chemicals.
Where is the work under NAICS 33131 performed?
By place of performance, the states with the most contract obligations under NAICS 33131 over the last 12 months are Indiana ($3,159,804), Nevada ($2,631,970) and Oklahoma ($2,105,440).
What is the latest contract opportunity under NAICS 33131?
The latest contract opportunity under NAICS 33131 is Lid, filter BB end, solicitation from Construction and Equipment (DLA), posted November 11, 2026.
On GovTribe
See everything under NAICS 33131
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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- Ask GovTribe AI about this code