Diodes US Manufacturing Incorporated
Every figure on PlainCarbon is rendered directly from EPA Greenhouse Gas Reporting Program (GHGRP) data, no number is typed in by an editor. This page draws directly on the EPA Greenhouse Gas Reporting Program (GHGRP), no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.
South Portland, ME · CUMBERLAND COUNTY · NAICS 334413
Data updated May 2026
Annual Emissions History
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 20,237 |
| 2022 | 25,447 |
| 2021 | 27,819 |
| 2020 | 23,191 |
| 2019 | 23,710 |
| 2018 | 28,105 |
| 2017 | 26,318 |
| 2016 | 29,508 |
| 2015 | 33,404 |
| 2014 | 33,951 |
| 2013 | 34,188 |
| 2012 | 40,930 |
| 2011 | 49,654 |
Facility Insight: Diodes US Manufacturing Incorporated
Diodes US Manufacturing Incorporated (EPA GHGRP Facility ID 1009581) reported 20K metric tons of CO2-equivalent in 2023, operating in South Portland, ME within CUMBERLAND COUNTY. The site is classified under Other with NAICS code 334413.
The facility has 13 years of reported data on record, covering the 2011–2023 window. Over that period, annual CO2e emissions declined by 59.2%, with the peak observed year showing up to 50K MT CO2e.
Emissions Analysis
Diodes US Manufacturing Incorporated reports 20K MT CO2e, placing it among smaller reporting facilities in the GHGRP.
Frequently Asked Questions
How much CO2 does Diodes US Manufacturing Incorporated emit? ▼
Diodes US Manufacturing Incorporated reported 20K MT CO2e in 2023.
Is Diodes US Manufacturing Incorporated reducing emissions? ▼
Over 13 reporting years (2011–2023), Diodes US Manufacturing Incorporated's emissions have decreased by 59.2%. This suggests meaningful progress in emissions reduction.