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Environmental
Wholly-Owned
Started 2009

Nalco + Nanjing Chemical Industry Park

Analysis

Nalco announced in October 2008 that it had opened a recently completed manufacturing plant in Nanjing Chemical Industry Park to serve China's growing water-treatment market. The company described the project as a $25 million, 240,000-square-foot (22,300-square-meter) facility with 29 employees and annual production capacity of 37,000 metric tons. Nalco said the Nanjing site was one of eight core manufacturing plants worldwide and could produce key technologies across its product line. [1]

The original design included substantial room for expansion. Nalco said the site had space to expand to 75,000 metric tons per year and was designed for a potential total capacity of 150,000 metric tons. The company also emphasized process safety, process control and lean-manufacturing features, and credited the Nanjing Chemical Industry Park with supporting the project. [1] [2]

A 2023 Alliance for Water Stewardship certification report provides a later operational snapshot of Nalco Industrial Services (Nanjing) Co., Ltd. The report places the site at No. 89 Changfenghe Road, covers approximately 60,209 square meters with 18,862 square meters of construction area, identifies about 93 employees, and describes the facility as a manufacturer of water-treatment agents with total capability of 125,000 tons per year. It also records onsite treatment of industrial and domestic wastewater before discharge to Nanjing Sembcorp Water and ultimately the Yangtze River. [3]

The Nanjing operation is now part of Ecolab's Nalco Water business rather than an independent listed Nalco company. Ecolab states that Nalco merged with Ecolab in 2011, and Ecolab's SEC affiliate disclosures continue to list Nalco Industrial Services (Nanjing) as a China entity. The partnership is therefore best characterized as a wholly owned, place-based manufacturing investment supported by the industrial park, with the site's later scale and water-stewardship practices documented through certification and corporate filings rather than a bilateral joint-venture agreement. [4] [5]

Participants

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US Partner's Profile

Nalco

Naperville, Illinois · 1 record in this database

Nalco Water’s official history says the business began in 1928 as National Aluminate Corporation, created by the merger of Chicago Chemical Company and Aluminate Sales Corporation. Both sold sodium aluminate for water treatment, but one focused mainly on municipalities and industrial boiler feedwater while the other served railroads and steam locomotives. In 1929, National Aluminate added Visco Products to sell sodium aluminate for oil-well drilling mud, and in 1959 the company adopted the Nalco Chemical Company name as its activities broadened. [1]

The business later developed a stronger industrial research and service footprint. Ecolab’s history records that Nalco opened a technical center in Naperville in 1979, moved its corporate headquarters there in 1986, and was acquired by Suez in 1999 before returning to public trading in 2004. Those milestones describe Nalco as a specialist water-and-process business whose chemistry, testing and customer-site support expanded beyond its original inorganic water-treatment base. [1]

Ecolab completed its merger with Nalco Holding Company on December 1, 2011. Today Ecolab presents Nalco Water as a global water and process-management business that helps industrial customers reduce water, energy and other resource consumption, improve air quality, minimize releases, and increase productivity and product performance. Nalco Water’s current headquarters and research facility remains at 1601 West Diehl Road in Naperville, Illinois, so the historic entity is best understood as an Ecolab operating business rather than a separate public company. [2] [3]

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Chinese Partner's Profile

Nanjing Chemical Industry Park

Nanjing, Jiangsu · 1 record in this database

The current official profile uses the name Nanjing Jiangbei New Materials Science and Technology Park and traces the zone’s development to Nanjing Chemical Industry Park, established in 2001. In March 2018, Nanjing approved the new-materials park in the original chemical-park development area, with a stated positioning around distinctive products, higher-end materials, and safer, greener industrial development. [1]

The same government profile describes an integrated operating model covering industrial development, utilities, trade and logistics, environmental protection and safety, and management services. It says the park has formed a modern industrial system supported by petrochemical and C1-carbon chains, with new materials and life-health industries as development directions. The profile also reports more than 130 production and operating enterprises, including more than 20 Fortune Global 500 companies, major global chemical companies and leaders in specialized markets. [1]

Recent government disclosures show both the park’s constraints and its upgrading agenda. A July 2025 response states that the planned area is 31.7 square kilometers across the Changlu and Yudai sections, that expansion preparations began in December 2023, and that feasibility, planning, environmental, safety and related assessment work was underway. In November 2025, an innovation pilot base topped out with 16 pilot workshops and more than 40 pilot lines; the disclosure says 14 companies and projects led by five academicians were being gathered around advanced electronic materials, special engineering plastics and biomanufacturing. [2] [3]

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