Mexico’s Pacific coast ammonia project nears completion amid local opposition

The plant is located within the port of Topolobampo in the state of Sinaloa, on Mexico’s Pacific coast. The site was chosen for its access to CFE and PEMEX gas infrastructure, port export facilities, and proximity to agricultural regions in western Mexico. It will be the first ammonia plant on the Pacific coast of the Americas, with potential for future exports to Pacific Rim markets including South Korea, Japan, and the Philippines, which are significant importers of nitrogen fertilizers and ammonia for industrial use.

Proman is a Swiss-headquartered integrated energy and petrochemicals company and one of the world’s top-10 nitrogen fertilizer producers. It operates ammonia facilities in Trinidad and Tobago — through the Point Lisas complex — in the United States, and in Oman, with a combined ammonia production capacity of approximately 1.9 million tonnes per year. The Topolobampo plant, once operational, would expand the group’s total ammonia capacity to approximately 2.8 million tonnes per year. Proman is also the world’s largest aggregated methanol and ammonia producer through its combined portfolio.

The plant uses thyssenkrupp Uhde ammonia synthesis technology, which is among the most energy-efficient in the industry. Design capacity is 2,200 metric tons per day of anhydrous ammonia, equivalent to approximately 800,000 tonnes per year. The facility will also include storage and port export infrastructure for domestic and international distribution. Proman GPO has said the plant captures CO₂ from production for reuse in its methanol and urea operations at other facilities, in line with circular production practices used at its Trinidad sites.

QCIntel’s report references community pushback in the Topolobampo area but does not detail its specific nature. Industrial projects in Mexican coastal communities have previously faced opposition related to environmental impact assessments, land access, water use, and concerns about industrial safety. Proman GPO has not disclosed a specific commissioning date. At 88% completion, the project is in its final construction and systems integration phase; community-related delays at this stage typically affect startup timing by weeks to months rather than years.

Mexico currently imports the majority of its nitrogen fertilizer needs, making it highly exposed to global price spikes and supply disruptions such as the current Hormuz closure. The Topolobampo plant would provide a domestic ammonia source for urea and ammonium nitrate production, reducing import dependence for fertilizers used by Mexican farmers in the Sinaloa corn, wheat, and horticultural growing regions. Proman GPO has positioned the plant as a national food security asset, noting that it will supply competitively priced fertilizer to local farming communities in Sinaloa while also providing export flexibility.