2022 NAICS national industry in sector 31-33 Manufacturing
325312 Phosphatic Fertilizer Manufacturing
NAICS 325312 is the US industry code for phosphatic fertilizer manufacturing. This U.S.
- Code
- 325312 (2022 NAICS)
- Title
- Phosphatic Fertilizer Manufacturing
- Part of
- Fertilizer and Compost Manufacturing
- SBA small business limit
- Up to 1,350 employees
- Closest UK SIC
- 20110, 20120 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in (1) manufacturing phosphatic fertilizer materials or (2) manufacturing phosphatic materials and mixing with other ingredients into fertilizers.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Establishments primarily engaged in mixing ingredients made elsewhere into phosphatic fertilizers are classified in U.S. Industry 325314, Fertilizer (Mixing Only) Manufacturing.
Activities listed under 325312
The Census index assigns these 8 activities to this code. If your business matches one, this is your code.
- Ammonium phosphates manufacturing
- Defluorinated phosphates manufacturing
- Diammonium phosphates manufacturing
- Fertilizers, mixed, made in plants producing phosphatic fertilizer materials
- Phosphatic fertilizer materials manufacturing
- Phosphoric acid manufacturing
- Plant foods, mixed, made in plants producing phosphatic fertilizer materials
- Superphosphates manufacturing
SBA size standard for 325312
To count as a small business for SBA loans and federal contracts under NAICS 325312, your business (including affiliates) must not exceed 1,350 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2011, 2012), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.