St. Catharines, Ont. (2,100 graduate student instructors and teaching assistants) and the Canadian Union of Public Employees (CUPE), Local 4207, Unit 1
![Brock University](https://cdn-res.keymedia.com/cdn-cgi/image/f=auto/https://cdn-res.keymedia.com/cms/images/ca/126/0299_637590235785698127.jpg)
Renewal agreement: Effective Sept. 7, 2019 to Sept. 6, 2022. Ratified in November 2020. Signed on Oct. 2, 2020.