Trammo
Trammo, formerly Transammonia, is a privately held international trader, marketer, transporter, and distributor of industrial raw materials used in fertilizer, mining, and petrochemical production.
Last updated August 31, 2026
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Overview
Trammo, Inc. is an international commodities and industrial-materials company formerly known as Transammonia, Inc. Established in 1965 by Ronald P. Stanton, the business began with a specialization in the international trade of ammonia. Over time, it expanded into a broader portfolio of raw materials serving fertilizer manufacturing, mining, petrochemicals, energy, and related industrial markets. The company trades, transports, distributes, and markets products including anhydrous ammonia, sulfur, sulfuric acid, nitric acid, finished fertilizers, and petroleum coke. The company’s original Transammonia identity reflected its early concentration on ammonia commerce. As its commercial activities broadened, the business adopted the Trammo name. The legal name changed from Transammonia, Inc. to Trammo, Inc. on October 29, 2013. The Trammo trademark had already been used by several subsidiaries, and the rebranding was intended to represent a business that had moved beyond ammonia into sulfur, petroleum coke, acids, fertilizers, and other industrial commodities. Trammo operates through an international network of offices and commercial activities in Europe, Asia, North America, South America, the Middle East, and South Africa. Its infrastructure includes production assets and terminals associated with several major products. The company owns nitric-acid production assets in North Bend, Ohio. It also owns or operates ammonia terminals in Meredosia and Niota, Illinois, and in Nanjing, Jiangsu, China, as well as facilities at the Port of Batumi in Georgia handling sulfur and finished fertilizers. These assets support the movement of bulk commodities between producers and industrial customers. The company has remained privately held and has appeared in rankings of large private businesses in the United States. It was listed by Forbes among the largest private companies in the country in multiple years, including a reported 2022 ranking of 133rd. Crain’s ranked it 13th among the largest privately held companies in the New York area in 2022. For the fiscal year ending December 31, 2021, Trammo reported sales of more than US$4.2 billion, while an earlier fiscal year ending May 1, 1990, recorded sales of US$1.1 billion. These figures reflect the scale of its commodity-trading activities, but the company’s private ownership limits the amount of public financial disclosure available. Trammo’s history also includes expansion beyond its traditional chemicals and fertilizer-related businesses. In 2006, it entered natural-gas gathering in the United States. In 2010, following public scrutiny of dealings involving Iranian entities, the company ended the Iranian activities of its Swiss subsidiary, Trammo Trading. The company stated that those activities were permitted under applicable United States law but that the limited commercial opportunity did not justify the reputational risk associated with continuing them. Overall, Trammo is positioned as a global business-to-business supply-chain and commodity-marketing company rather than a consumer-facing chemical brand.
History
Trammo’s history began in 1965, when Ronald P. Stanton established Transammonia as a company focused on the international commerce of ammonia. The business operated in a specialized part of the industrial supply chain: sourcing, trading, transporting, and marketing ammonia for customers and markets connected to fertilizer production and other chemical uses. Rather than presenting itself primarily as a consumer chemical manufacturer, Transammonia developed as a commercial intermediary and logistics-oriented enterprise. Over subsequent decades, the company broadened its commodity portfolio. Its activities came to include anhydrous ammonia, sulfur, sulfuric acid, petroleum coke, nitric acid, and finished fertilizers. This expansion gave the business positions across fertilizer, mining, petrochemical, and energy-related markets. The company’s role involved international trading as well as transportation, distribution, marketing, terminal operations, and selected production assets. By the late twentieth century, it had become a substantial private industrial-commodities business. For the fiscal year ending May 1, 1990, Transammonia reported sales of US$1.1 billion. The company continued to diversify geographically and operationally. In 2006, it entered natural-gas gathering in the United States, extending its activities beyond its established fertilizer and chemical-materials businesses. In 2007, Forbes placed the company among the 50 largest private companies in the United States. It was later ranked 24th on Forbes’ 2012 list of the largest private companies in the country. These rankings reflected the scale of its revenues and trading operations rather than public-equity capitalization, since the company remained privately held. A significant reputational and regulatory episode occurred in 2010. Public reporting examined the activities of Trammo Trading, the company’s Swiss subsidiary, in relation to Iranian entities. Transammonia maintained that its foreign subsidiary’s dealings were permitted under United States law, but it nevertheless decided to terminate those activities. The company explained that the limited amount of business did not justify the reputational risk associated with continuing to trade with entities located in Iran amid international concern over the Iranian government’s policies and nuclear program. The episode illustrates the compliance and reputational exposure faced by global commodity traders operating through international subsidiaries. The company formally adopted the Trammo name on October 29, 2013, changing its legal name from Transammonia, Inc. to Trammo, Inc. The name Trammo had already been used by several subsidiaries and was chosen to reflect the business’s broader scope. Although ammonia remained an important product, the company had developed major activities in petroleum coke, sulfur, sulfuric acid, nitric acid, and finished fertilizer. The change therefore functioned as a corporate and brand-positioning update rather than a break with the company’s original business. Trammo’s physical network includes production and storage infrastructure in several countries. It owns nitric-acid production assets in North Bend, Ohio. It also owns or operates ammonia terminals in Meredosia and Niota, Illinois, and in Nanjing, Jiangsu, China. At the Port of Batumi in Georgia, the company owns or operates facilities associated with sulfur and finished fertilizers. Together with offices in Europe, Asia, North America, South America, the Middle East, and South Africa, this network supports international movement of bulk industrial materials. In the 2020s, Trammo continued to be described as a large private company with global operations. Crain’s ranked it 13th among the largest privately held companies in the New York area in 2022, while Forbes placed it 133rd among the largest private companies in the United States. For the fiscal year ending December 31, 2021, the company recorded sales of more than US$4.2 billion. Because Trammo is privately held, detailed current information about ownership, management, profitability, and segment performance is not broadly disclosed. Its documented trajectory, however, is one of expansion from ammonia trading into a diversified international platform for industrial commodities and related logistics.
- 2022
Private-company rankings
[1]Trammo is reported as 13th among the largest privately held companies in the New York area by Crain’s and 133rd among the largest private companies in the United States by Forbes.
- 2021
Reported sales exceed US$4.2 billion
[1]For the fiscal year ending December 31, 2021, Trammo reports sales of more than US$4.2 billion.
- 2013
Corporate name changes to Trammo
[1]On October 29, the company changes its legal name from Transammonia, Inc. to Trammo, Inc. to reflect its diversified commodity portfolio.
- 2012
Ranked among the largest U.S. private companies
[1]Forbes ranks Transammonia 24th among the largest private companies in the United States.
- 2010
Iran-related trading activities are terminated
[1]The company ends the Iranian activities of its Swiss subsidiary after public scrutiny and concern about reputational exposure.
- 2007
Forbes private-company recognition
[1]Forbes ranks the company among the 50 largest private companies in the United States.
- 2006
Entry into natural-gas gathering
[1]The company expands into natural-gas gathering in the United States.
- 1990
Sales exceed one billion dollars
[1]For the fiscal year ending May 1, 1990, Transammonia reports sales of US$1.1 billion.
- 1965
Transammonia is established
[1]Ronald P. Stanton establishes Transammonia as an international ammonia-trading business.
Products and positioning
A privately held, globally oriented industrial-commodities company connecting producers, transport infrastructure, and industrial customers in fertilizer, mining, petrochemical, and related markets.
Industrial chemical and fertilizer feedstock
Anhydrous ammonia
Anhydrous ammonia was the company’s founding specialty and remains a central traded commodity. Trammo sources, markets, transports, and distributes ammonia for fertilizer production and other industrial applications. Its infrastructure includes ammonia terminals in Illinois and China, supporting bulk storage and movement between producers and customers.
Industrial raw material
Sulfur
Sulfur is traded and handled as a major industrial raw material for chemical processing and fertilizer-related applications. Trammo’s activities include international marketing, logistics, and terminal operations, including facilities associated with the Port of Batumi in Georgia.
Basic chemical
Sulfuric acid
Sulfuric acid forms part of Trammo’s portfolio of basic industrial chemicals. The company supplies and markets the material within international industrial networks serving fertilizer, mining, and chemical customers.
Basic chemical
Nitric acid
Nitric acid is a niche product within Trammo’s broader portfolio. Unlike commodities handled solely through trading and logistics, the company owns production assets for nitric acid in North Bend, Ohio, giving it a direct manufacturing presence in this segment.
Fertilizer
Finished fertilizers
Trammo markets and distributes finished fertilizers alongside ammonia and other fertilizer inputs. Its role includes connecting supply sources with agricultural and industrial markets and handling bulk logistics through international terminals, including infrastructure at Batumi.
Industrial fuel and carbon material
Petroleum coke
Petroleum coke became one of Trammo’s important commercial positions as the company diversified beyond ammonia. The business markets and moves this carbon-rich industrial material through international commodity channels serving energy and industrial customers.
Controversies
2010
Iran-related trading controversy
Public reporting examined dealings between Trammo Trading, Transammonia’s Swiss subsidiary, and Iranian entities. The company said the business was permissible under United States law but ended the activities because the limited commercial benefit did not justify the reputational risk amid international concern about Iran’s policies and nuclear program.
Brand decisions
2013
Rebrand from Transammonia to TrammoStrategyBackground
The company had expanded from its original ammonia-trading focus into petroleum coke, sulfur, sulfuric acid, nitric acid, finished fertilizers, and other markets.
Action taken
On October 29, 2013, Transammonia, Inc. changed its legal name to Trammo, Inc., using a name already associated with several subsidiaries.
Aftermath
The new name positioned the company as a diversified international industrial-commodities group rather than an ammonia-focused business.
2010
Withdrawal from Iranian businessStrategyBackground
The company faced public scrutiny over Iranian dealings conducted through its Swiss subsidiary. It stated that the activities were allowed under United States law but carried growing reputational risk.
Action taken
Transammonia ended Trammo Trading’s dealings with Iranian companies.
Aftermath
The withdrawal reduced the company’s exposure to the reputational and geopolitical risks associated with continuing those transactions.
Recent events
- 2022
Trammo ranked among the largest private companies in the United States[1]
Other
Trammo was reported as number 133 on Forbes’ list of the largest private companies in the United States.
- 2013
Transammonia changes corporate name to Trammo[1]
Other
The company changed its legal name from Transammonia, Inc. to Trammo, Inc., reflecting its expansion from ammonia trading into a wider range of industrial commodities and markets.
Sources2 sources
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