1786: Eugene Fortier I clears and plants land with slave labor and builds Fortier plantation home out of cypress. Known as Nineteen Mile Point and later Orange Grove Plantation, the home was built at a cost equivalent of $75,000 (in 1957).
1882: Theodore Soniat sells Orange Grove Plantation to Francois Eugene Fortier (son of Eugene Fortier II and son-in-law of Mr. Soniat) and Francois' eldest son, Amedee.
1893: Francois sells his share of Orange Grove to his eldest son, Amedee.
1907: American Cyanamid is incorporated in Portland, Maine.
1910: Francois Eugene, who fought with the Confederate Army and taken prisoner until end of war, dies at age 82.
1921: The surviving heirs of Amedee Fortier sell the land to Mr. Tony Mumphrey. These heirs were: Mrs. Louise Fortier (wife of William Nelson), Miss Noelle Fortier, Miss Amenaide Fortier, Miss Edvige Fortier, Eugene Fortier, Lucien Fortier.
1952: American Cyanamid Co. buys the Fortier land.

American Cyanamid Company's Fortier Plant Groundbreaking takes place. The plant built to "produce acrylonitrile and nitrogen products and to serve as a nucleus for existing and prospective profitable chemicals."
June 11 - 1954: Fortier Site Dedication takes place. Products manufactured at the site during this time were: ammonia, acetylene, HCN, acid, acrylonitrile, ammonium sulfate, and oxygen.
1954: First working agreement signed (3-year contract) between Cyanamid and Local 603, United Gas, Coke, and Chemical Workers, CIO.

Fortier Employee Association is started to give employees an opportunity to socialize and have fun outside of normal working hours; original credit union, the Fortier Employees Federal Credit Union, begins operations.
1955: Construction begins on Monomethyl Styrene plant.
1957: First Sulfuric Acid plant expansion takes place
1957-58: The Fortier Plant is expanded to double capacity of acrylonitrile. Production increases to over 100 million lbs per year of product from acetylene and hydrocyanic acid.
1958: Hydrogen Cyanide. Acetylene, and Oxygen plants are expanded to support Acrylo plant.
1962: Ammonia plant is expanded.
1964: Methyl Methacrylate Monomer plant comes online with 30 million lbs per year capacity (expanded again In 1966 to 100 million lbs per year).
1965: Low pressure Ammonia plant (Kellogg) and Urea plant are constructed as part of nitrogen products expansion program (1,000 ton/day Ammonia and 450 ton/day Urea).
1966: Original acrylonitrile process is phased out and replaced with process to produce from propylene and ammonia (to 235 million lbs per year).

Resins manufacturing facility comes online and undergoes many expansions in coming years. Estimated production by 1979 is 23 million lbs per year of resin solids.

Acetylene plant shuts down.
1969: Deep well injection of waste acid begins.
1971: Original Sulfuric Acid unit is shut down.

Yellow Prussiate of Soda (YPS) plant comes on line with 25 million lbs per year capacity.

Fortier's melamine unit starts up, ending the production of commercial grade urea.
1974: AMD semi-works starts up (10 million lbs per year capacity).
1975: Union workers' walkout takes place, and ensuing strike I lockout lasts until March 1979.
1976: CYRO JV formed based on new MMA technology I expansion.
1978: Sulfuric Acid plant comes on line with a 1600 ton per day capacity, using the double absorption process pioneered by American Cyanamid.
June 30 - 1979: Fortier 25-Year Celebration is held in front of the Administration Building.
1979: New Ammonia facility (Pritchard) is brought on line with a 750 ton per day capacity.
1980: CY-CO Federal Credit Union begins operations.
1984: Clerical staff begins using personal computers.
1985: Start-up of MET system; closure of site's lagoons
1986: Pritchard Ammonia facility shuts down.
1987: AMEL Groundbreaking Ceremony takes place, marking the beginning of Cytec's joint venture with DSM.

F.E.A. Pavilion is constructed, built by employee volunteers (renamed Tom Call Pavilion).
1990: Orange Grove Plantation Archaeological Dig begins and continues for the next 10 years.
1993: Fortier Sulfuric Acid plant is converted into a Regen unit, allowing site top recover waste acid from the MMA plant.
Dec 17 - 1993: Cytec Industries Inc. is spun off from American Cyanamid Company.
1994: Fortier's Methanol plant, a joint venture with Methanex Corporation, starts up following the conversion of the old Pritchard Ammonia plant.
1995: Major Acrylonitrile expansion is completed.
1999: Methanol Plant shuts down.
2001: Kellogg Ammonia plant shuts down, followed by a significant restructuring of Fortier site.
2004: Fortier opens Exercise Center for use by employees and retirees.
June 24 - 2004: Fortier 50-Year Rededication / Celebration is held at the Tom Call Pavilion.
2005: Degussa purchases Cytec’s 50% share of the MMA plant.

Methanol plant demolished.

Fortier dedicates the opening of the Jefferson Parish Landfill Gas project, providing the Sulfuric Acid Regen unit with an alternative to highly priced natural gas.

Cytec and DSM announce the termination of their 50/50 joint venture in the Melamine manufacturing unit.

Cytec sells its AMD (Acrylamide) plant at the Fortier complex to Finland-based Kemira as part of the Cytec Water Treatment Business scale

2011: H.I.G. Capital acquires the Building Block Chemicals business from Cytec Industries, Inc. (the Fortier complex), renaming it Cornerstone Chemical Company.
2012: Gov. Bobby Jindal and Simon Atkinson, president of Dyno Nobel International, announce the company will complete a $30 million study to establish the feasibility of building a world class ammonia production facility at the Fortier complex.


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