Addyston is a village in Miami Township, Hamilton County, Ohio, United States.

[8] In 1894, the company entered into a cartel with other pipe manufacturers in which they agreed not to compete with each other in order to increase the price of their products.

The cartel was the subject of an 1899 US Supreme Court antitrust case, Addyston Pipe & Steel Co. v. United States.

The closure of the Pipe and Steel Company in the 1950s resulted in population loss and the blighting of many of the village's buildings, particularly in the Sekitan neighborhood.

[10] Meredith Hitchens Elementary School ceased operations following a 2005 report by the Ohio Environmental Protection Agency (EPA) that found a significantly heightened risk of cancer at the school due to industrial pollution from the nearby plant.

In 2009, Ineos and Lanxess agreed to spend $2 million to address the pollution in a deal with the EPA.

[8] Many residents in the Cincinnati area regarded Addyston as a speed trap as early as 1948, which village officials repeatedly denied.

An article in The Cincinnati Enquirer stated that its reputation as a speed trap was "mostly true", citing the fact that Addyston's mayor's court saw more than five times as many traffic cases per 100 residents than the average mayor's court in Ohio between 2017 and 2019.

Addyston's police department issued 604 traffic tickets in 2019, which the Enquirer contrasted with the fact that U.S. Route 50 only passes through the village for two miles.

[11][12] In 2021, Addyston's financial situation was referred to as a "record-keeping train wreck" by Ohio State Auditor Keith Faber.

The announcement of its closure deepened the village's financial crisis and raised media speculation about Addyston's potential dissolution and reabsorption into Miami Township.

[15] In the wake of the disbandment, Addyston Police Chief Jacob Tenbrink suggested that dissolving into Miami Township may be necessary, though Miami Township Administrator Jim Brett expressed his desire for Addyston to remain independent.

The negotiations were arranged by Bill Seitz, a Republican in Green Township who had formerly served as a member of the Ohio House of Representatives.