METHANEX CORPORATION vs. THE UNITED STATES OF AMERICA

The document outlines a legal conflict where Canada-based Methanex Corporation sought over $900 million from the United States after California banned MTBE to protect drinking water. It focuses on the IISD's request to the arbitral tribunal for amicus status, oral submission rights, and observer status to represent public interests and sustainable development principles. While Methanex opposed the intervention, the United States and Canada supported it, leading to a January 2001 tribunal ruling that it has the authority to accept written amicus briefs.

• Methanex Corporation initiated international arbitration against the United States seeking more than $900 million in compensation following a March 1999 order by the State of California to ban MTBE by the end of 2002.
• The dispute centers on conflicting views of the MTBE ban: California claims the additive poses a "significant risk to human health and safety, and the environment" by contaminating drinking water, while Methanex attributes the contamination to the "ineffective regulation and non-enforcement of domestic environmental laws," such as the U.S. Clean Water Act.
• The IISD requested to submit an amicus brief, make oral submissions, and be granted observer status, arguing that the case involves "great public interests" and that the tribunal should incorporate "legal principles of sustainable development."
• In January 2001, the Tribunal ruled that it possesses the authority to accept written amicus briefs and indicated it was "minded" to accept the IISD's petition, a move the IISD views as a step toward openness in typically "secretive" Chapter 11 proceedings.
• The legal proceedings involve preliminary disputes over jurisdiction, with the United States arguing that Methanex's claims are "outside the scope of Chapter 11" and that there are "narrower grounds for investor challenges under NAFTA."

APA

International Institute for Sustainable Development (n.d.). METHANEX CORPORATION vs. THE UNITED STATES OF AMERICA. https://www.iisd.org/system/files/publications/trade_methanex_background.pdf

Chicago

International Institute for Sustainable Development. METHANEX CORPORATION vs. THE UNITED STATES OF AMERICA. n.d. https://www.iisd.org/system/files/publications/trade_methanex_background.pdf.

Wikipedia

{{cite report |author=International Institute for Sustainable Development |title=METHANEX CORPORATION vs. THE UNITED STATES OF AMERICA |url=https://www.iisd.org/system/files/publications/trade_methanex_background.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{internationalinstituteforsustainabledevelopmentndmethanex, author = {{International Institute for Sustainable Development}}, title = {{METHANEX CORPORATION vs. THE UNITED STATES OF AMERICA}}, institution = {International Institute for Sustainable Development}, url = {https://www.iisd.org/system/files/publications/trade_methanex_background.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }